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, 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
Find out exactly when the eclipse starts and finishes for your location with countdown timers.
Be ready for the partial solar eclipse on October 23, 2014!
Be ready for the total eclipse in August of 2017!
Free and opensource, contribute to the code at:
Read the user manual at:
Still some issues with the Sun/Moon simulation.
Slow on older hardware.
Menu issues on older hardware.
Improvements to come!
* Position (azimuthal and elevation angle)
* Distance to earth
* Rise and set
* Moon phase
Graphical displays of:
* Current lunar phase
* Objects now above the horizon
* Solar system (Current position of planets and other objects)
* Moons of Jupiter (Current positions as seen from earth)
* Moons of Saturn (Current positions as seen from earth)
Graphical Widgets for Android's home screen:
* Current lunar phase
* Objects now above the horizon
* Solar system (Current position of planets and other objects)
Get this astronomy app now!
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!
- 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
This eclipse will teach you how to use Eclipse in your day-2-day life while developing any software project using Eclipse IDE. We will give special emphasis on Java project.
After installing the application, open it and select the "Tip of the day" check box to enable the notifications. You can also configure the exact time you want to have the tip popup. When a notification is triggered, tap on it to see the full text of the guideline. Swipe left and right to navigate between the guidelines.
You can always jump to a random guideline without waiting for the tip of the day to come.
This application is an open source software licensed under the Eclipse Public License (EPL). The code is available on github - see app's web site. Feedback and code contributions are welcome.
The lessons in Learn Java lessons are fast, easy, and effective; the app is set up to be completed in less than three hours. No prior programming experience is needed.
With Learn Java, you’ll learn object-oriented Java programming and have the ability to write clear and valid code in almost no time at all. So don't hesitate. Begin our step-by-step tutorial today, and learn a new skill!
The app's 64 lessons cover the following topics:
• Java Basics: Variables, Operators, etc.
• Conditional Statements and Loops
• Classes and Objects
• Encapsulation, Polymorphism, and Inheritance
• Abstract Classes and Interfaces
• Anonymous and Inner Classes
• Exception Handling
• Working with Files
• And Much More!
Become a Java developer – start SoloLearn's FREE tutorial today!!
Unlock levels, collect points, and compete with your peers around the world.
Learn and have fun with SoloLearn!
- Did you know that it is still a mystery how long a day on Saturn is?
- Did you know that Saturn has 60 moons?
Enjoy the beauty of one of the best known and most beautiful planet in the Solar System. Saturn is mostly known for its rings and numerous moons. The easy navigation through the app makes the experience of surfing the Space really breathtaking and unforgettable.
IMPORTANT: This free demo shows the Saturnian system of moons and rings. Full access to all solar system objects is available through In-App purchase.
Remember building a solar system in high school? Cups and papier-mache balls are in the past, because Solar Walk is an interactive orrery that shows all planets and satellites of the solar system in their correct positions in real time.
This 3D solar system model lets you navigate between planets, see their positions on a specific date, explore how they move and why. You will see the entire Milky Way galaxy from a far and zoom in to study all the planets and satellites in close-up, learn their trajectories, inner structures, history of their exploration, and geography.
Every planet has extensive information: size, mass, orbital velocity, exploratory missions, thickness of structural layers, and composition of atmosphere.
“Can’t-miss app.” - Mashable
“Solar Walk serves up a visually impressive 3D model of our solar system. Set against a haunting, atmospheric soundscape, the app shows planets and satellites in their correct positions, and offers mini movies, facts and other related tidbits.” - TNW
“This jaw-dropping app provides a wholly interactive 3D model of our solar system, one that’s had me hooked for days. It’s the kind of thing you can imagine a science teacher using in the classroom of the future — except that we don’t have to wait.” - CNet
“Zoom from Mercury to Pluto (which makes the cut in this app), passing each planet’s moons along the way. Because Solar Walk knows what time it is, the planets are in proper orientation to the Sun: Earth is dark where it is currently night and gradually lightens to daytime on the other side.” - The New York Times
Planets: Sun, Mercury,Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
Moons: Phobos, Deimos, Callisto, Ganymede, Europa, Io, Hyperion, Iapetus, Titan, Rhea, Dione, Tethys, Enceladus, Mimas, Oberon, Titania, Umbriel, Ariel, Miranda, Triton, Larissa, Proteus, Nereid, Charon
Dwarf planets and asteroids: Ceres, Makemake, Haumea, Sedna, Eris, Eros
Comets: Hale-Bopp, Borrelly, Halley’s Comet, Ikeya-Zhang
Missions and satellites*: Curiosity, Luna 17, Apollo 11, Apollo 17, Hubble Launch, SEASAT, ERBS, ISS, Aqua, Envisat, Suzaku, Daichi, CORONAS-Photon
Educational movies*: size comparison, Earth’s cycles, solar eclipse, moon phases, tidal phenomena, major circles of latitude, zodiacal constellations, Cassini-Huygens mission
*Available through In-App Purchase
The time of beginning or ending penumbral eclipse is simultaneous around the country but a place of beginning total eclipse differs from pace to place. The Moon Book will show you the phases of the moon eclipse at your place.
You will be able to set up any observing place beforehand if the moon eclipse star chart is selected. When you move to a distant place for observing the moon eclipse, you will be able to know in advance a place where the Earth’s shadow starts hiding the moon.
You will be able to check a start time of the moon eclipse overseas also.
Tapping on the moon icon at the upper left corner of the star chart will show you thumbnail images of the phases of the moon eclipse at regular intervals. The interval of the thumbnail images can be changed.
A large volume of calculation is required for the indication of the moon eclipse and it will be better to use a terminal device with performance as high as possible.
For Android, version 4.0 or later is recommendable.
Learn Java Programming Online.
Contents are well organized in five sections:
- Home: learning paths for students and developers
- Technologies: technologies to build web, mobile and distributed applications
- Tutorials: tutorials and video tutorials for different IT profiles
- Books: collection of free java eBooks
- Wiki: glossary of java words based on wikipedia
- Jobs: job portals
The links are updated and checked.
* code complete *
* real-time diagnostics (warnings and errors) and fixes *
* file and tutorial navigator (variables, methods, etc)
* static analysis *
* smart syntax highlighting
* portrait/landscape UI
* auto indentation and auto pairing (configurable)
* configurable code syntax highlighting (themes) *
* compile C/C++ code (no root required)
* works offline (built-in compiler, no internet connection required)
* great C/C++ code examples included *
* detailed C++ tutorial and learn guide included *
* add-ons manager and auto updates
* Dropbox support *
On first launch CppDroid extracts SDK (about 150Mb) and downloads and extracts examples and tutorials, so about 190Mb of internal storage space is required. It can't be moved to sd card because of android security.
Start learning C and C++ by examples (menu / Project / Examples) or tutorials (menu / Project / Tutorials).
Advanced paid features (marked with *) review:
This Application includes
# Introduction to Java
*Java basic concept
*Java virtual machine
*A step by step guidance for beginners as well as for experts.It also include EXERCISES and QUIZZES at the end of chapter.
#Bang with Java
*A quick start to boost your java Programming
*A quick explanation of java language keywords and java programming terms
*A perfect step by step video guidance
#Java Common Errors
*A list of basic java error which developer ignore and then face problems.
#Test your Skills
*A quiz category to test your java skills.Its includes three levels
*The most important Question/Answer for "Java developer" job.
#Play with Code
*A list of basic and advance java sample codes.
Furthermore, Graphing Calculator by Mathlab displays calculations as it performs them on the high-quality display of the Android device, making it easier for the user to understand the calculations and see them clearly. This app has two great strengths. First, it acts as a fine scientific calculator, but, more than that, it displays the intermediate steps of the calculations as you type. It allows the students to both watch and learn how the calculations are made and how to find the final answer. Second, the graphing ability is absolutely stunning! Not only does the calculator beautifully display the graphs, but it automatically generates the x- and y- values and displays them as well.
Help site with instructions and examples: http://help.mathlab.us
If you have a question, send email to firstname.lastname@example.org
* 3D graphs
* Save constants, functions and expressions in the library
* Internet is not required
* No advertisements
* Arithmetic expressions +,-,*,/,÷
* Square root, cube and higher roots (hold ‘√’ key)
* Exponent, logarithms (ln, log)
* Trigonometric functions sin π/2, cos 30°, ...
* Hyperbolic functions sinh, cosh, tanh, ... (hold "e" key to switch)
* Inverse functions (hold direct function key)
* Complex numbers, all functions support complex arguments
* Derivatives sin x' = cos x, ... (hold x^n key)
* Scientific notation (enable in menu)
* Percent mode
* Save/load history
* Multiple functions graphing
* Implicit functions up to 2nd degree (ellipse 2x^2+3y^2=1, etc.)
* Plar graphs (r=cos2θ)
* Parametric functions, enter each on new line (x=cos t, y=sin t)
* Корени на графици и локални екстреми на функција прикажани на график. Селектирајте го квадратчето од левата страна на функцијата, за да ги видите нејзините координати на графикот. Кликнете на копчето-график, на горното мени, за да ги гледате координатите како листа.
* Graph intersections (x^2=x+1)
* Tracing function values and slopes
* Dcrollable and resizable graphs
* Pinch to zoom
* Fullscreen graphs in landscape orientation
* Function tables
* Dave graphs as images
* Save tables as csv
* Simple and complex fractions 1/2 + 1/3 = 5/6
* Mixed numbers, use space to enter values 3 1/2
* Linear equations x+1=2 -> x=1
* Quadratic equations x^2-1=0 -> x=-1,1
* Approximate roots of higher polynomials
* Systems of linear equations, write one equation per line, x1+x2=1, x1-x2=2
* Polynomial long division
* Polynomial expansion, factoring
* Matrix and vector operations
* Dot product (hold *), cross product
* Determinant, inverse, norm, transpose, trace
* User defined constants and functions
* Save/load expressions
This app is very user friendly and with a lot of Java/J2EE mcqs to polish your skills.
This application is also useful for those are preparing for Java Interviews. This Application cover basic concepts, Code Snippets , common errors in codes.
Please try it and Hope you love it. Thanks.
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.