Sky Tonight - Star Gazer Guide

Contains adsIn-app purchases
37K reviews
Content rating
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About this app

Sky Tonight is a brand-new astronomical app for exploring the sky. It helps stargazers answer the three most common questions:

★ What is that bright dot in the sky?
★ What astronomical events can I see tonight?
★ How can I find the object I'm interested in?

Made by the developers of Star Walk apps, Sky Tonight is a customizable stargazing tool, that is designed for users with different needs and wants. You can adjust the constellation's appearance, set a reminder for any space body configuration, explore the unique relative to observer trajectory, set up a magnitude limit to filter out space objects, and much more.

Sky Tonight features:

► Point your device at the sky to see the real-time positions of space objects on the interactive sky map.
► Activate the Time Machine and determine the position of celestial bodies at different time periods.
► Use the augmented reality mode and see the sky map overlaid on the image from your device's camera.
► Get extended information about any sky object by tapping on its name.
► Stay updated on the latest news from the world of astronomy with the What's new section.
► Turn on the night mode to make your sky observation in the nighttime more comfortable.
► Filter the objects that appear on the sky map according to their visual brightness.
► Regulate the brightness of objects on the sky map.
► Spot dozens of asterisms along with the official constellations.
► Adjust the visible constellations and customize their representation on the screen.

Unique features:

Interactive trajectories relative to an observer
Instead of the classic trajectory that shows the object’s trajectory in the celestial sphere relative to the Earth’s center, the app presents the object’s trajectory in the sky relative to an observer. A long touch on the trajectories relative to the observer will move the sky object to the selected point. While holding the touch, move your finger along the trajectory to change the time.

Flexible search
Make use of the flexible search — quickly find space objects, easily navigate across different objects and events’ types. Look for "stars", "mars moons", "mars conjunctions", "solar eclipse", and the app will show you all related objects, events, and articles!
There are also Trending and Recent categories in the search section. The first one presents the currently most popular objects, events, or news; the second category contains objects you recently selected.

Fully customizable event reminders
Set event reminders on any time and date not to miss a solar eclipse, a Full Moon, or a star-planet configuration you're interested in.

Astronomy calendar with a stargazing index and weather forecast
Check out the calendar of celestial events that includes lunar phases, meteor showers, eclipses, oppositions, conjunctions, and other exciting events. Learn what astronomy events will occur this month or see what happened in the sky a year ago!
Verify the Stargazing Index calculated from a Moon phase, light pollution, cloudiness, and time when an object is visible. The higher this index is, the better the observation conditions are.

You don’t need several apps for your stargazing planning anymore; Sky Tonight contains all the info you need.

Premium Access:

* The app includes paid Premium Access. Get Premium Access to use Sky Tonight with no limits! Without the subscription, you can’t see most of the interface items in various sections such as Visible Tonight, Calendar, and Search. Therefore, you’re limited in planning and improving your observations. Premium Access will allow you to unlock all the interface items in any view and make the most of all the app’s features. Advertisements will also be removed not to interrupt your stargazing experience.
Updated on
Apr 3, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

35.8K reviews
Michal R (Mike)
April 27, 2024
I love the idea of the app on paper, but it just doesn't work. It's always waaaay off, I can calibrate, be connected to 4 different Networks, and still doesn't work. Even in transparency mode, you can't tell anything... I wish the camera would actually work and pick up the stars to adjust the view...
11 people found this review helpful
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scott greenland
April 7, 2024
I would love to give it a 5 star. this app has potential to be a spectacular viewing aide for helping get our younger kids curious about the universe. Unfortunately every time you go to inquire about the planets or even navigating through your list. You get bombarded with commercials. I understand that is why you can offer it for limited free but it gets to be way too much to keep your kids interested. Please try to find a way to reduce them so every time you touch something you don't get adds.
60 people found this review helpful
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Kelley Poulos
February 20, 2024
This app has great features. My 6 year old granddaughter loves it. There aren't too many ads, but I was still considering buying it, but I can't get it properly calibrated. I'm using a Galaxy S24.i tried all the instructions. I tried Uninstaller and reinstalling. I tried clearing the cache. It's almost always 90° off. I say almost always because it never stops moving, even if I lay the phone down.
119 people found this review helpful
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What's new

We keep updating Sky Tonight regularly to make it better for you:
- Maps of Solar & Lunar Eclipses
- Magnitude graph for comets
- 3D view of comet's trajectories in space
and much more....

Got a problem? Or an idea? Don't hesitate to shoot us an email at Your suggestions are what help us reach for the stars! Till the next update, happy stargazing!