Astronomy Course Assistant

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# Description

Do you need an astronomy tool that does more than just show you pictures? Something that will actually help you with your school work? The Wolfram Astronomy Course Assistant provides a suite of useful tools for helping you in your introductory computational astronomy course. From fact checking to formulas, this app provides a convenient resource to help you complete your homework and study for tests. Answers are computed on the fly using input values you specify.

This app covers the following topics, applicable to college-level Astronomy 120 or any other introductory computational astronomy course:

- Get an overview of constellations, including the effects of proper motion

- Learn the celestial reference points and their location in your sky

- Explore solar system objects, properties, and dynamics

- Study Moon phases, eclipses, and tides

- Examine properties of over 100,000 stars, including distance, parallax, luminosity, and position on the Hertzsprung–Russell diagram

- Learn about the seasons and when meteor showers occur

- Access formulas such as Newton's and Kepler's laws, escape velocity, moments of inertia, angular momentum, and Einstein's famous E=mc^2

- Convert between wavelength and frequency, or find the energy of a photon

- Understand the cosmological effects of universal expansion on light and the gravitational effects of black holes

- Determine the probability of intelligent life on other worlds

The Wolfram Astronomy Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Astronomy Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

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Latest Version

4.4

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# What's New

- Bug fixes

# Additional information

Updated

June 1, 2015

Size

3.2M

Installs

500 - 1,000

Current Version

1.0.5329542

Requires Android

2.1 and up

Permissions

Report

Flag as inappropriate Offered By

Wolfram Group

Developer

Visit website Email android-support@wolframalpha.com Privacy Policy

100 Trade Center Drive
Champaign, IL 61820

# Similar

## Mobile Observatory - Astronomy

Mobile Observatory is the perfect tool for anybody interested in the sky's wonders, from the occasional sky gazer to the passionate amateur astronomer.

You want to know if the next lunar eclipse is visible from your location or when the next bright comet is visible? You would like to be notified by your smart phone the next time, Jupiter and the Moon meet in the sky? You want to know what the blazing bright object in the evening sky is? You want to be always up-to-date which celestial events are visible from your location? Then this app is a must-have for you!

The app does not only include a live, zoomable sky map telling you what sky object you are looking at but provides you with loads of detailed extra information on stars, planets, deep sky objects, meteor showers, comets, asteroids, lunar and solar eclipses as well as detailed ephemeris of all included sky objects and an interactive top-down view of the Solar System. All that in just one app!

Main Features

- Zoomable sky map showing stars, planets, asteroids, and more (above and below the horizon)

- Interactive top-down view of the Solar System

- Live mode (point device on sky and get information on what you see)

- Calendar showing detailed descriptions of celestial events

- Push celestial events to your phone's calendar and set a reminder alarm

- Rise, set, and transit times for any object

- Position of any object in the sky (altitude and direction)

- Twilight times, length of day

- Bright Star Catalog (~9000 stars) with detailed information

- More than 400 000 additional stars from the PPM Star Catalog (Android 3.1 or higher required)

- 2500 selected NGC objects (galaxies, clusters, ...)

- Messier Catalog (110 objects) complete with images

- Caldwell Catalog (110 objects) complete with images

- Hidden Treasures Catalog (109 objects) complete with images

- Meteor streams (begin, maximum, hourly rate, ...)

- Lunar and solar eclipses information

- Lunar librations, ascending node, maximum declination

- Bright comets (automatically selected according to the date)

- Dwarf planets: The five known dwarf planets

- Minor planets: bright, near Earth, trans-Neptune (more than 10000 in the database)

- Update database online: download up-to-date orbital elements of comets and minor planets

- Moon phases, the apparent view of the sun and planets

- Current image of the Sun and sunspot number

- Automatically generated visibility report for any object

- Simulation of light pollution

- Intuitive User Interface: quickly find what you are looking for

- Widget with rise & set times of the Sun and Moon

- Maintain your favorite locations in a list

- Automatic location determination from the mobile network or GPS

- Select a location from a built-in database or online via Google Maps

- 400 observatory locations

- Choose any time and date

- Detailed ephemeris, visibility information of all objects

- Dates of conjunctions between any object with planets or the Moon

- 3D-view of the Moon and the planets

- Accurate calculations for dates between 1900 and 2100

## Star Walk - Astronomy Guide

Star Walk is the most beautiful stargazing app you’ve ever seen on a mobile device. It will become your go-to interactive star chart of the night sky, following your every movement in real time and allowing you to explore over 200, 000 celestial bodies with extensive information about stars, planets, satellites, and constellations that you find. Even if you’ve never been that into astronomy, Star Walk will surprise you.

Links:

http://vitotechnology.com/star-walk.html

http://www.facebook.com/StarWalkApp

http://twitter.com/starwalk

Get started quickly

• Launch the app and point your device at the night sky, you'll see the stars, planets, satellites, and constellations in their proper place for your location. As you move your device, the star map updates in real time. The Moon is the easiest first target.

• Tap Augmented Reality icon in the upper right corner to add the image from your camera to your sky view.

• Use Night Mode to go easy on your eyes and preserve night vision when exploring the Universe.

Go deeper and beyond

• Every star, planet, constellation, or deep space object, such as nebulae and galaxies, has an (i) next to its name. Tap it to access information.

• A scale on right is the Time Machine, slide it to explore the map of the night sky of tomorrow or years ago.

• StarWalk has data on over 9000 man-made satellites. Track their flight across the sky, be it day or night, catch iridium flares.

• Meteor showers are spectacular yearly events. Star Walk can help you plan ahead and locate the meteor shower on the night sky.

Share your experience

• Post pictures from your virtual planetarium and let your friends learn about the night sky. Astronomy has never been so engaging!

Duran Duran's keyboard Nick Rhodes mentions Star Walk as his favorite app:

"With the Star Walk app, if you hold your device up towards the sky, you can see all the stars and constellations. It even tells you the names of all the planets. Then, if you point it towards the ground, it shows you what all the stars are in the other hemisphere. It’s brilliant, and if you’re ever somewhere with a clear sky and no light pollution, it’s a revelation. It’s beautifully designed and makes clever use of the available technology. I’m fascinated by astronomy, but even if you’re not, give this a go."

***Note***

- The Star Spotter feature won't work for the devices that are not equipped with the gyroscope and compass.

- For Android 4.4 KitKat users: the application doesn't support ART, please switch to Dalvik.

## Stellarium Mobile Sky Map

Stellarium Mobile Sky Map is a fully-featured planetarium for your phone. It shows a realistic and accurate night sky map, just like what you see with the naked eye, binoculars or a telescope.

The sensor control will also enable you to identify a star in just a few seconds, just by pointing the phone at the sky!

This award-winning astronomy application is finally available on Android featuring:

* a catalog of over 600,000 stars displayed as a real time zoomable sky map

* a catalog of many nebulae and galaxies, with pictures for some of them

* asterisms and illustrations of the constellations for several sky cultures

* artificial satellites, including the International Space Station

* realistic Milky Way

* realistic landscape and atmosphere with sunrise, sunset and light pollution simulation

* accurate simulation of stars extinction, and atmosphere refraction

* 3D rendering of the major solar system planets and their satellites

* night mode (red)

* GPS positioning, accelerometers control of the direction of view in the sky

Stellarium mobile Sky Map is created by two of the original developers of Stellarium, the Desktop version of this famous astronomy and planetarium stars chart app.

## Vortex Planetarium - Astronomy

Have you ever looked up at the night sky and gazed in wonder at it's beauty? How about in the comfort of your own home!? Well now you can with Vortex Planetarium, one of the most feature complete planetariums on the Android Market.

Combining simplicity and beauty with unrivalled features and power, let Vortex provide you with a stunning view of the night sky.

Features

Augmented Reality (with camera support)

Hold your device to the sky and see an accurate representation of the stars and planets. If your device has a rear facing camera, experience true augmented reality with our sky map overlayed onto the real world! A unique experience not found in any other Android planetarium.

Location

View the sky from any location - Use GPS, Network Provider or our powerful search feature to show you the night sky at your current location, or even the other side of the world.

Time slider

Using our inovative time slider, you can see how the skies looked at any point in time, with fine control over the abilty to rewind, or fast-forward time. Select an object and watch it's motion as it rises and falls.

Huge object database

With over 20,000 objects to discover, you wont run out of things to search for! Included are

* All major and minor planets in our Solar System including all major moons.

* 88 constellations

* 110 Messier objects

* 109 Caldwell objects

* Full Revised NGC-IC catalog (Over 14,000 objects)

* More than 9000 stars

* Meteor showers

Combined with our powerful search, you will never be far away from any one of these objects!

Facts and figures

To compliment the staggering number of objects available, we have made available concise facts and information about the majority of them, with detailed ephemeris and figures for all. You will learn something new with each and every object in the sky!

Events

Discover, at the touch of a button, upcoming celestial events such as eclipses, conjunctions, moon phases, season changes and much more. With the ability to add these events to your device calendar you'll never miss these sometimes once in a lifetime events again!

What's up?

With just one button press, see what objects of interest are in the night sky right now!

Weather forecasting

Unique to Vortex Planetarium, we provide a 3 day forecast for anywhere in the world, focusing on astronomical data, like transparency and seeing. With the ability to mark those clear nights in your devices calendar, you will have no excuse to get outside and marvel at the beauty the Universe beholds.

Highly configurable

With a bewildering number of configuration options, packaged in a simple to understand design, you can tailor Vortex to your exact needs. Maybe the constellation art is too bright, no problem, adjust it's transparency, need to adjust the number of stars you see to match the real night sky? No problem! We have pretty much every option covered, and if we don't, let us know why we should!

Beauty, speed & simplicity

Our aim is to make sure Vortex Planetarium is easy to use, extremely powerful and look stunning.

Vortex Planetarium has been optimised to run as fast and as smoothly as possible, no jerky movements when you zoom in on Jupiter. We have not ported Vortex from iPhone, it's purely an Android product. This means we can focus on optimising for the platform exclusively. This philosophy guarantees fast and regular updates.

And much more to come

We are always improving Vortex, and you will never have to "upgrade" or make additional purchases for these features and improvements.

## SkySafari Pro

***SkySafari has been upgraded! Click below for the NEW SkySafari 4 Pro***

https://play.google.com/store/apps/details?id=com.simulationcurriculum.skysafari4pro&hl=en

SkySafari Pro will completely replace your desktop astronomy software, and forever change the way you view the night sky. With SkySafari Pro, you can now explore the universe - not just from Earth, but from anywhere in the Milky Way galaxy!

As just reviewed in Sky & Telescope, the iOS version of SkySafari is "revolutionary" and a "game-changer". Now here for Android, SkySafari will change the way you do astronomy!

http://media.skyandtelescope.com/documents/Southern+Stars_Dec11.pdf

What you can do with SkySafari Pro:

• Largest database of any astronomy app, period.

• 15.3 million stars from the Hubble Guide Star catalog, 740,000 galaxies down to 18th magnitude, and 580,000 solar system objects - including every comet and asteroid ever discovered.

• NASA's latest LRO Moon map, with 8x the resolution of any other SkySafari version.

• Telescope Control – Point your GoTo or “Push-To” telescope anywhere in the sky using your device’s Bluetooth or WiFi and our SkyBT or SkyFi!

• Accurately shows you the sky from any place on Earth, at any time up to thousands of years in the past or future.

• 1100 encyclopedic descriptions of sky objects written by professional astronomers.

• Over 800 images from NASA space missions, the Hubble Space Telescope, and the world's foremost astro-photographers.

• Point and hover your mobile device at the night sky to identify constellations, planets, satellites, stars, and other sky objects from your location.

• Search for any object in the sky, and follow the arrow on screen to find it!

• “Night” button to preserve your dark adaptation as you're exploring the night sky.

• “Time Flow” Feature - follow the motion of sky objects as SkySafari compresses days, months, and years into a few seconds.

• 1500 times more stars than Google SkyMap

***TOP NEW FEATURES in SkySafari 4 Pro***

• Completely reinvented scope control panel with new telescope equipment settings.

• Animated Meteor Showers – with complete viewing information and spectacular graphics!

• New and Updated Descriptions – for HUNDREDS of objects!

• Log observations of objects directly from the Object Info view.

• Google Maps Integration: Choose your location from a built-in Maps view!

• Advanced Search – find objects using properties other than their name, results sortable by name, number, magnitude, RA, and many other properties!

• Hugely Expanded Database – General Catalog of Variable Stars, Washington Double Star catalogs, Guide Star Catalog 2.x stars to magnitude 15 – total 25 million

• Dozens more tweaks, bug fixes, and additions we don’t have room to list here

***Click below for the NEW SkySafari 4 Pro***

https://play.google.com/store/apps/details?id=com.simulationcurriculum.skysafari4pro&hl=en

Make sure you have at least 1.5 GB of free space on your internal SD card for SkySafari Pro to download this database from Google Play the first time it runs! (Note: due to Google Play rules, this data cannot be moved to your external SD card - you must have 1.5 GB free on your internal SD card!)

TROUBLESHOOTING AND PERFORMANCE TIPS

Having trouble downloading the data files? Is it running slowly? Check our web site for help:

http://www.southernstars.com/products/skysafari_android/data.html

Answers to the most frequently asked questions about SkySafari Pro for Android:

http://www.southernstars.com/support/faq/skysafari_android.html

If all else fails, send us an email - we're info@southernstars.com, and we're happy to hear from you.

## Calculus Course Assistant

Taking calculus? Then you need the Wolfram Calculus Course Assistant. This definitive app for calculus--from the world leader in math software--will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Calculus Course Assistant solves your specific Calculus problems on the fly including step-by-step guidance for derivatives, integrals, and much more.

This app covers the following topics applicable to Calculus, AP Calculus AB, AP Calculus BC, Calculus I, and Calculus II:

- Evaluate any numeric expression or substitute a value for a variable.

- Plot basic, parametric, or polar plots of the function(s) of your choice.

- Determine the limit of a function as it approaches a specific value.

- Differentiate any function or implicit function.

- Find the critical points and inflection points of a function.

- Identify the local and absolute extrema of a function.

- Integrate a function, with or without limits.

- Sum a function given a lower and upper bound.

- Find the closed form of a sequence or generate terms for a specific sequence.

The Wolfram Calculus Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Calculus Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Algebra Course Assistant

Taking algebra? Then you need the Wolfram Algebra Course Assistant. This definitive app for algebra--from the world leader in math software--will help you quickly solve your homework problems, ace your tests, and learn algebra concepts so you're prepared for your next courses. Forget canned examples! The Wolfram Algebra Course Assistant solves your specific algebra problems on the fly, often showing you how to work through the problem step by step.

This app covers the following topics applicable to Algebra I, Algebra II, and College Algebra:

- Evaluate any numeric expression or substitute a value for a variable.

- Simplify fractions, square roots, or any other expression.

- Solve a simple equation or a system of equations for specific variables.

- Plot basic, parametric, or polar plots of the function(s) of your choice.

- Expand any polynomial.

- Factor numeric expressions, polynomials, and symbolic expressions.

- Divide any two expressions.

- Find the partial fraction decomposition of rational expressions.

The Wolfram Algebra Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Algebra Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Multivariable Calculus App

Taking multivariable calculus? Then you need the Wolfram Multivariable Calculus Course Assistant. This definitive app for multivariable calculus—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Multivariable Calculus Course Assistant solves your specific multivariable problems on the fly, providing step-by-step guidance for limits, derivatives, integrals, and much more.

This app covers the following topics applicable to Multivariable Calculus, Advanced Calculus, and Vector Calculus:

- Evaluate any numeric expression, or substitute a value for a variable

- Plot 2D or 3D functions of your choice

- Determine the limit of a function as it approaches a specific value or values

- Differentiate any single or multivariable function

- Find the critical points and saddle points of a function

- Calculate the gradient of a function

- Identify the local extrema of a function

- Find the single, double, or triple integral of a function

- Determine the dot or cross product of two vectors

- Calculate the divergence or curl of a vector field

The Wolfram Multivariable Calculus Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Multivariable Calculus Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Discover Astronomy

Welcome to the world of astronomy: planets, double stars, galaxies, nebulae. These are just some of the amazing wonders that await you when you explore the night sky. But a dark sky with seemingly countless stars can appear overwhelming. Where do you begin?

Start with Discover Astronomy. For decades, the insightful editors of Astronomy magazine have been guiding observers, across the constellations, through the solar system, and into the deep sky so they can get the most from our time under the stars. And now, with this app, Northern Hemisphere observers can take expert guidance with them wherever they go.

Discover Astronomy eases you into stargazing by having you get to know the night sky with just your unaided eyes and binoculars through interactive articles, videos, galleries, and star charts. What are the signpost stars and star patterns of each season? What should you observe first? How can you understand where to look when you hear about a sky event in the news? The answers are all here.

After you feel comfortable with the major constellation guideposts of each season, grab your binoculars and Discover Astronomy to explore the Moon and the brightest star clusters, nebulae, and galaxies. You’ll be amazed by what simple optics can reveal. Soon you’ll be craving the views only a telescope can provide, which this app helps you with as well. Let Astronomy’s editors guide you through the buying process and get you started observing the planets, the Sun, and hundreds of stunning deep-sky objects. In no time, you’ll be exploring the sky like a pro and sharing your knowledge with others.

Payment for this app will be charged to your Google Play account at confirmation of purchase.

At Kalmbach Publishing, we welcome your feedback. If you experience any problems with this app, please contact us at www.kalmbach.com/apphelp.

Privacy policy: http://www.kalmbach.com/privacy

## Night Sky Tools - Astronomy

Night Sky Tools is the ultimate collection of astronomical tools perfect for anyone interested in astronomy.

The calculations are of a high enough accuracy for almost all amateur astronomy applications.

Due to the fact that astronomy is often best when far from civilization where mobile signal may not always be reliable. Therefore, this app is (almost) completely self-contained and does not require any internet connection for most of the information available. The only exceptions to this are the SOHO solar images and NGC/IC, Messier, Caldwell and Binary star images and weather forecast which are loaded dynamically, as well as the refreshing of satellite, comet and near-earth asteroid data.

Night mode turns the display red for night observations without having to ruin your night vision.

The Sky Map makes use of the direction sensors of the device to show the sky above (or below you). Most of the features can be toggled in the settings. The Sky Map also allows you to turn on the device's camera to see the view behind the device with the sky map superimposed over it.

The direction sensors of the device may need to be calibrated if the map appears to be pointing in the wrong direction. To calibrate the device's sensors wave the device in a figure-8 pattern. If the direction is still off, then the direction calibration can be adjusted manually by changing the setting in the Settings screen.

The observation log, allows you to save observations in the applications, as well as manage a list of astronomical equipment and observing locations. This equipment is also available for use in the Telescope Calculator.

Most of the data screens have an option to share the data via email, or other similar apps able to accept HTML content.

The Astronomical Time is also available as a Home screen widget. To use the widget, the app needs to be installed onto the internal storage instead of the SD card, otherwise it will not be available.

The Russian translation of the application is courtesy of Lirvux.

Some permissions are required for correct functioning of the app:

Location - used to determine user location throughout the app

Camera/Microphone - used to allow camera background in skymap. The microphone is never used but this permission is bundled with camera.

Photos/Media/Files - used to allow proper functioning of the full screen images and caching of images

Network access - used to do online searches, and downloading comet, asteroid and satellite data, object images and geocoding.

The app is jam-packed with features:

- Observe the sky with the skymap, planisphere, aurora forecast, polar finder, weather forecast, daylight map, Moon and Mars maps, SOHO images, Jupiter and Saturn's moons, Moon and Sun calendars and what's up.

- Detailed object information on the planets, constellations, comets, exoplanets, meteor showers, near-earth asteroids, satellites, as well as the full NGCIC, Caldwell, Messier, 6th catalog of Visual Binary Stars by the USNO and General Catalog of Variable Stars catalogs, as well as a SIMBAD search.

- Calculate angular separation, atmospheric refraction, magnitude, coordinate conversions, visual limiting magnitude, precession, redshift, and telescope airy disc, f-ratio and magnification

- Astronomical references, glossary, HR diagram and stellar classification.

- Astrophotography tools for exposure time, CCD resolution, Untracked exposure time and optimal f-ratio.

- Emphemerides for eclipses, equinoxes, conjunctions and oppositions, the sun, moon and planets

- Observation log

- Astronomical time

## SkyView® Free

You don't need to be an astronomer to find stars or constellations in the sky, just open SkyView® Free and let it guide you to their location and identify them. SkyView Free is a beautiful and intuitive stargazing app that uses your camera to precisely spot and identify celestial objects in sky, day or night. Find popular constellations as they fade in and out while you scan across the sky, locate planets in our solar system, discover distant galaxies, and witness satellite fly-bys.

***An AppsZoom Best Android App 2014***

Features:

• Simple: Point your device at the sky to identify galaxies, stars, constellations, planets, and satellites (including the ISS and Hubble) passing overhead at your location.

• Night Mode: Preserve your night vision with red or green night mode filters.

• Augmented Reality (AR): Use your camera to spot objects in the sky, day or night.

• Sky Paths: Follow the sky track for any object to see it’s exact location in the sky on any date and time.

• Time Travel: Jump to the future or the past and see the sky on different dates and times.

• Social: Capture and share beautiful images with friends and family on social networks.

• Mobile: WiFi is NOT required (does not require a data signal or GPS to function). Take it camping, boating, or even flying!

• Supports Space Navigator™ binoculars, spotting scope, and telescopes.

What a fun way to teach yourself, your children, your students, or your friends about our wonderful universe!

## Planets

3D guide to the solar system for aspiring astronomers

Is that bright object in the sky a star or a planet? The 3D view of the sky make it easy to identify planets and constellations. Learn what the sky looks like at frequencies outside of the visible spectrum. Spin the Earth or the planet of your choice with one finger.

## Messier Catalog - Astronomical

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The Messier Catalog Pro is a list of 110 astronomical objects compiled by French astronomer Charles Messier and originally published between 1774 and 1781. Its formal title is "Catalog of Nebulae and Clusters of Stars r, seen among the fixed stars on the horizon of Paris."

This application allows you to check the features, location and visibility of each of the objects in the catalog. It also contains real images, a search engine to make it easier and faster to the location of objects and night mode so you can use it on your observations (turned-off by the icon in the upper right corner). No need to be connected to the internet to use the application.

The application can be moved to SD card.

*** Note: The Spanish version is available in https://play.google.com/store/apps/details?id=com.domobile.catalogomessier ***

For questions or suggestions you can write to creanetweb@gmail.com. Please, if there are problems with the translations in the text write me!.

## Meteor Shower Calendar

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Would you like to know when the next meteor shower is? This app will display a list of upcoming meteor showers and the approximate date in which they will peak with specific details on each.

Features:

- A reminder system to automatically notify you when the next shower is coming up and more details on an Android Wear device!!

- Expandable notifications on 4.1+ devices

- Share this app with a friend on both Android and iOS

- Widget for your home screen to show the number of days until the next shower, your location's sunrise/sunset times, and the current phase of the Moon! (widgets use very little battery and don't connect to the internet)

- LockScreen widget on 4.2+ devices

- Share details about an individual meteor shower

- Choose to sort the list of meteor showers by peak, start, or ending dates

- Swipe left/right to see next/previous meteor showers when viewing the details page

- The upcoming sunrise or sunset time is shown at the top

- Enable the "Auto theme" feature and the theme will automatically change to day and night mode before and after sunrise/sunset!

- 4 color themes to choose from: Light, Dark, Daylight, and Night

- Conduct a Google Search within the app to read even more about each meteor shower such as its origins and many, many other details and share it with your friends via SMS, Email, Facebook, Google+, Twitter, or any other social network!

- View a Sky Map search to point you approximately where in the sky to look for the meteor shower when it peaks. Compatible with SkEye and beta support for Google Sky Map

- See current Weather Forecast to get ready for the the upcoming conditions

- Shows the Phase of the Moon on the approximate meteor shower peak date!

Go out and enjoy looking at the sky!

Ad supported. To remove ads and support development, please purchase the Meteor Shower Calendar Key

Permissions:

- Internet needed to show ads

- Coarse location needed to calculate sunrise/sunset time

- Automatically start at boot needed for the notification system

## Space Images

NASA/JPL’s Space Images V3 is now available, packing exciting new features, videos and stunning hi-res photos. Already a fan? Upgrade to start sharing images with friends on Facebook and Twitter, browse our new video collection and get even closer to the space you love. It’s all free! Experience what millions have already downloaded.

Discover stunning images and videos of space, stars and planets -- including Earth and the sun! -- at your fingertips with the Space Images app from NASA's Jet Propulsion Laboratory, a leader in robotic exploration of the solar system.

NASA/JPL's Space Images app offers a unique view of the sky via hundreds of images taken by spacecraft studying planets, stars, galaxies, weather on Earth and more. Save to your device as backgrounds or wallpaper and share them with friends on Facebook, Twitter and email as you scan through our extensive photo albums and rate your favorites.

The Space Images app works together with NASAJPL’s newly launched Space Images website at http://www.jpl.nasa.gov/jplimages, so you can always have a view of space on the go (via Android, iPhone, and iPad) or at your desk.

Features

· Discover the latest science images and videos of planets, stars, galaxies, weather and more

· Share photos and videos with friends on Facebook and Twitter

· Rate photos and check out which ones make the Top Rated list

· Choose the best space images and keep them handy in the Favorites folder

· Search for images or browse by categories -- now including Editor’s Pick!

· Access full captions for more on scientific discoveries, NASA spacecraft and missions

· Save images to your mobile device as backgrounds and wallpapers

★ Staff Favorite on iTunes (Space Images for iPhone V1)!

★ Top Free App in the AppStore Education category (Space Images for iPhone V1)!

## Star finder

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The application allows you to recognize the stars in the sky.

Often the brightest stars are visible in the evening, but it is difficult to guess to what constellation they belong - Lyra, Cygnus, or Eagle. Or maybe it's Venus, Mars or Jupiter?

This question can answer this application.

3D map

* Indicates Zenith Nadir, the compass, the constellations, stars and horizontal grid coordinates.

* planetarium. Moon

* model of the Solar System.

* visualization of eclipses

3D StarMap and Solar System model in one.

Сomets are expected.

# More from developer

## WolframAlpha

Remember the Star Trek computer? It's finally happening--with Wolfram|Alpha. Building on 25 years of development led by Stephen Wolfram, Wolfram|Alpha has rapidly become the world's definitive source for instant expert knowledge and computation.

Across thousands of domains--with more continually added--Wolfram|Alpha uses its vast collection of algorithms and data to compute answers and generate reports for you.

Parts of Wolfram|Alpha are used in the Apple Siri Assistant; this app gives you access to the full power of the Wolfram|Alpha computational knowledge engine. Domains covered by Wolfram|Alpha include:

MATHEMATICS

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PHYSICS

Mechanics

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Quantum Physics

Particle Physics

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CHEMISTRY

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Chemical Thermodynamics

Protecting Groups

MATERIALS

Alloys

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ENGINEERING

Acoustics

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ASTRONOMY

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EARTH SCIENCE

Geology

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Atmosphere

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LIFE SCIENCES

Animals & Plants

Dinosaurs

DNA Sequence Lookup

SNPs

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Human, Mouse & Fruit Fly Genomes

Metabolic Pathways

COMPUTATIONAL SCIENCES

Cellular Automata

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Turing Machines

Computational Complexity

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Mathematica

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UNITS & MEASURES

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Industrial Measures

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PEOPLE & HISTORY

People

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CULTURE & MEDIA

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COLORS

Color Names & Systems

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MONEY & FINANCE

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SOCIOECONOMIC DATA

Demographics

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TECHNOLOGICAL WORLD

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Space Probes

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Barcodes

WEB & COMPUTER SYSTEMS

Website Data

IP Lookup

Notable Computers

Data Transfer

Port Numbering

String Processing

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Unicode Lookup

## Calculus Course Assistant

Taking calculus? Then you need the Wolfram Calculus Course Assistant. This definitive app for calculus--from the world leader in math software--will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Calculus Course Assistant solves your specific Calculus problems on the fly including step-by-step guidance for derivatives, integrals, and much more.

This app covers the following topics applicable to Calculus, AP Calculus AB, AP Calculus BC, Calculus I, and Calculus II:

- Evaluate any numeric expression or substitute a value for a variable.

- Plot basic, parametric, or polar plots of the function(s) of your choice.

- Determine the limit of a function as it approaches a specific value.

- Differentiate any function or implicit function.

- Find the critical points and inflection points of a function.

- Identify the local and absolute extrema of a function.

- Integrate a function, with or without limits.

- Sum a function given a lower and upper bound.

- Find the closed form of a sequence or generate terms for a specific sequence.

The Wolfram Calculus Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Calculus Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Algebra Course Assistant

Taking algebra? Then you need the Wolfram Algebra Course Assistant. This definitive app for algebra--from the world leader in math software--will help you quickly solve your homework problems, ace your tests, and learn algebra concepts so you're prepared for your next courses. Forget canned examples! The Wolfram Algebra Course Assistant solves your specific algebra problems on the fly, often showing you how to work through the problem step by step.

This app covers the following topics applicable to Algebra I, Algebra II, and College Algebra:

- Evaluate any numeric expression or substitute a value for a variable.

- Simplify fractions, square roots, or any other expression.

- Solve a simple equation or a system of equations for specific variables.

- Plot basic, parametric, or polar plots of the function(s) of your choice.

- Expand any polynomial.

- Factor numeric expressions, polynomials, and symbolic expressions.

- Divide any two expressions.

- Find the partial fraction decomposition of rational expressions.

The Wolfram Algebra Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Algebra Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Precalculus Course Assistant

Taking precalculus? Then you need the Wolfram Precalculus Course Assistant. This definitive app for precalculus—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Precalculus Course Assistant solves your specific precalculus problems on the fly, including solving equations, vector arithmetic, statistics, and much more.

This app covers the following topics applicable to precalculus and trigonometry:

- Evaluate any numeric expression or substitute a value for a variable

- Solve a single equation or a system of equations

- Plot functions on the x-y plane or draw a parametric or polar plot

- Determine the sine, cosine, and tangent of a specific angle in a right triangle

- Simplify, expand, or factor trigonometric functions

- Find the partial fraction decomposition of an expression

- Calculate the dot product, cross product, and magnitude of two vectors

- Identify the mean, median, mode, and standard deviation of a set of data

- Calculate permutations and combinations

The Wolfram Precalculus Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Precalculus Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Statistics Course Assistant

Taking statistics? Then you need the Wolfram Statistics Course Assistant. This definitive app for statistics—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn statistics concepts. Forget canned examples! The Wolfram Statistics Course Assistant solves your specific problems on the fly, covering descriptive statistics, distributions, and much more.

This app covers the following topics applicable to Statistics and Introduction to Statistics:

- Create a bar chart, histogram, or scatter plot of any set of data

- Find the mean, median, mode, standard deviation, quartiles, and interquartile range of a dataset

- Calculate normal probabilities and find information about the normal distribution

- Calculate binomial probabilities and find information about the binomial distribution

- Compute probabilities based on dice rolls and coin flips

- Find the best-fit line of a set of data points

- Select random integers or random real numbers

The Wolfram Statistics Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Statistics Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Pre-Algebra Course Assistant

Taking pre-algebra? Then you need the Wolfram Pre-Algebra Course Assistant. This definitive app for pre-algebra—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn pre-algebra concepts. Forget canned examples! The Wolfram Pre-Algebra Course Assistant solves your specific pre-algebra problems on the fly.

This app covers the following pre-algebra topics:

- Find the divisors and prime factorization of a number

- Calculate the GCD and LCM of two numbers

- Determine the percent change

- Reduce and round numbers

- Evaluate expressions

- Solve equations and simplify expressions

- Convert units of length, area, volume, and weight

- Compute the mean, median, and mode of a dataset

- Plot equations on the coordinate plane

- Graph inequalities on a number line

- Calculate the area, surface area, or volume of a geometric figure

- Find the midpoint, slope, and distance between two points

The Wolfram Pre-Algebra Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Pre-Algebra Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Multivariable Calculus App

Taking multivariable calculus? Then you need the Wolfram Multivariable Calculus Course Assistant. This definitive app for multivariable calculus—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Multivariable Calculus Course Assistant solves your specific multivariable problems on the fly, providing step-by-step guidance for limits, derivatives, integrals, and much more.

This app covers the following topics applicable to Multivariable Calculus, Advanced Calculus, and Vector Calculus:

- Evaluate any numeric expression, or substitute a value for a variable

- Plot 2D or 3D functions of your choice

- Determine the limit of a function as it approaches a specific value or values

- Differentiate any single or multivariable function

- Find the critical points and saddle points of a function

- Calculate the gradient of a function

- Identify the local extrema of a function

- Find the single, double, or triple integral of a function

- Determine the dot or cross product of two vectors

- Calculate the divergence or curl of a vector field

The Wolfram Multivariable Calculus Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Multivariable Calculus Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Discrete Math Course Assistant

Taking discrete mathematics? Then you need the Wolfram Discrete Mathematics Course Assistant. This app for discrete math—from the world leader in math software--will help you work through your homework problems, ace your tests, and learn discrete math concepts. The Discrete Mathematics Course Assistant solves your specific discrete math problems on the fly, providing answers to a broad range of subjects.

- Do function calculations like domain and range, image and preimage, and inverse and growth

- Compute logic problems like minimal forms, implications, propositions, and bitwise operations

- Calculate set functions like power set, basic set operations, complement, and Venn diagrams

- Use the Number Theory section for division, modular arithmetic, prime numbers, special numbers, and integer functions

- Do sequence computations like summation, product, and limit of a sequence

- Compute permutation and combinatorics questions, including derangements and permutations of list or finite relations and Pascal's triangle

- Use the discrete probability section for Bernoulli trial equations and view statistics on coin and dice probabilities or view various distribution given the probability of success

- View information on basic, named, or custom graphs in our Graph Theory section

The Wolfram Discrete Mathematics Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Discrete Mathematics Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Physics II Course Assistant

Taking introductory physics or need a quick physics reference? Then you need the Wolfram Physics II Course Assistant. This app will help you work through your homework problems, ace your tests, and learn physics concepts. Forget canned examples! The Wolfram Physics II Course Assistant solves your specific physics problems on the fly.

This app covers the following topics from Physics II:

- Calculate properties of solids, including stress, pressure, deformation, and more

- Calculate properties of fluids, including drag, buoyancy, hydrostatic pressure, and more

- Solve a variety of electricity and magnetism calculations

- Perform ray optics calculations, including Snell's law, lensmaker's equation, thin lens equation, and more

- Compute wave effects, including properties of diffraction and thin film interference

- Do common thermodynamics calculations, including the ideal gas law, Joule's first law, and more

- Look up laws of physics and common physics constants

The Wolfram Physics II Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Physics II Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Linear Algebra Course App

Studying linear algebra? Then you need the Wolfram Linear Algebra Course Assistant. This definitive app for linear algebra—from the world leader in math software--will help you work through your homework problems, ace your tests, and learn linear algebra concepts. Forget canned examples! The Wolfram Linear Algebra Course Assistant solves your specific algebra problems on the fly.

This app covers the following topics applicable to linear algebra:

- Solve an equation or a system of equations

- Add or subtract any two vectors

- Find the cross product or dot product for two vectors

- Find the dimensions, transpose, adjugate, rank, inverse, determinant, and reduced row echelon form of a matrix

- Calculate a matrix product

- Add and subtract matrices

- Compute linear transformations

- Determine subspaces, including row space, column space, and null space

- Find the characteristic equation, eigenvalues, and eigenvectors of a matrix

The Wolfram Linear Algebra Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Linear Algebra Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## General Chemistry Course App

Taking introductory chemistry, or need a quick chemistry reference? Then you need the Wolfram General Chemistry Course Assistant. This comprehensive app for chemistry will help you quickly solve your homework problems, ace your tests, and quiz your understanding of basic chemistry concepts so you're prepared for your courses. Forget canned examples! The Wolfram Chemistry Course Assistant solves your specific chemistry problems on the fly.

This app covers the following topics applicable to Introductory Chemistry, General Chemistry, and AP Chemistry:

- Determine properties of elements, chemicals, and ions

- Compute properties of gases using various gas laws

- Perform stoichiometric conversions for solutions

- Balance equations

- Compute the enthalpy, equilibrium constant, and theoretical yield of a reaction

- Perform over 45 different computations

The Wolfram General Chemistry Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram General Chemistry Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Physics I Course Assistant

Taking introductory physics or need a quick physics reference? Then you need the Wolfram Physics I Course Assistant. This app will help you work through your homework problems, ace your tests, and learn physics concepts. Forget canned examples! The Wolfram Physics I Course Assistant solves your specific physics problems on the fly.

This app covers the following topics from Physics I:

- Solve linear and rotational kinematic equations

- Calculate forces of gravity, friction, and springs

- Calculate motion of rockets, pendulums, collisions, and more

- Perform calculations involving mass, weight, density, energy, work, and power

- Do unit conversions

- Look up laws of physics and common physics constants

The Wolfram Physics I Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Physics I Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Mechanics of Materials App

Taking your first mechanics of materials class? The Wolfram Mechanics of Materials Course Assistant will help you solve those tricky homework problems, prepare for your next exam, and be ready to tackle future courses! The Wolfram Mechanics of Materials Course Assistant solves your specific problems, performs unit conversions on the fly, and shows you the equations!

This app covers the following topics applicable to mechanics of materials, mechanics of deformable bodies, solid mechanics, mechanics and materials, and statics:

- Calculate the normal stress on and extensional strain in a body

- Solve for the effects of temperature changes on a member

- Search for material properties of alloys, plastics, and woods

- Determine the Young's modulus, Poisson's ratio, and shear modulus of an object

- Use Hooke's Law for uniaxial stress and plane stress and a generalized version to solve for a member's stress or strain

- Evaluate axial deformation problems

- Find the shear stress on circular bars, rectangular or elliptical shafts, and thin-walled members undergoing torsional forces

- Determine the twist angles of torsion members

- Calculate the extensional strain and flexural stress in pure bending beams

- Solve for the deflection of statically determinate beams

The Wolfram Mechanics of Materials Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Mechanics of Materials Course Assistant draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Fractions Reference App

Learning fractions? Then you need the Wolfram Fractions Reference App. Whether adding, subtracting, or converting fractions, the Wolfram Fractions Reference App will help you with your specific fraction problems.

- Visualize fractions on a number line or pie chart

- Convert a fraction to a decimal or percent or vice versa

- Get help with arithmetic, including addition, subtraction, multiplication, and division

- Reduce fractions to their simplest forms

The Wolfram Fractions Reference App is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Fractions Reference App draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.

## Fractals Reference App

Like fractals? Want to know more about them? The Wolfram Fractals Reference App is a handy reference you can take with you wherever you go. It's great whether you're covering fractals in your math course or just want to explore the beautiful shapes and structures of fractals and the math behind them.

- Choose from both common fractals and more unusual types

- Visualize the Sierpiński gasket, the Koch snowflake, and the Mandelbrot set, as well as over 40 other fractals

- Input parameters to customize your fractal type

- Learn the rules behind the fractal construction

- Explore hundreds of possibilities, including line and shape replacement fractals, space-filling curves, Blancmange function, Mandelbrot and Julia sets, and 3D fractals

The Wolfram Fractals Reference App is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education.

The Wolfram Fractals Reference App draws on the computational power of Wolfram|Alpha's supercomputers over a 2G, 3G, 4G, or Wi-Fi connection.