Sky Tonight: Star Gazing Guide

Contains adsIn-app purchases
4.6
79K reviews
Content rating
Everyone
5M+
Downloads
Content rating
Everyone
Users interact, In-app purchases
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About this app

Why choose Sky Tonight?

✔ It’s user-friendly

Whether you're a professional or just starting your astronomy adventure, Sky Tonight makes it easy to find and track comets. Search for C/2023 A3 in the app or just point your phone to the sky and the live sky map will adapt to your surroundings in real time.

✔ It’s science proved

All data comes from trusted scientific sources like NASA, the Comet Observation Database, and the Max Planck Institute for Solar System Research, ensuring reliable and up-to-date information.

✔ it’s more than just a comet tracker

Sky Tonight is a full-featured astronomy app. You can explore planets, stars, constellations, and deep sky objects, check a moon phase, plan your stargazing nights, and set reminders for astronomical events. It’s everything a stargazer needs in one app!

✔ It’s tailored to your preferences

Overlay the equatorial or azimuthal grid, adjust the magnitude settings, and switch to night mode or AR for an enhanced stargazing experience.

✔ It’s social

Snap photos of the night sky, overlayed with the app’s sky map, and share them with friends or the stargazing community.

How to explore C/2023 A3 with Sky Tonight?

Find the comet in your sky

Just search for C/2023 A3 in the app or point your device to the sky and see what's up there.

Track the comet trajectory through time

Use the Time Machine feature to explore how the comet will appear in upcoming nights. It’s perfect for planning your stargazing sessions ahead of time.

Set notification for upcoming events

Don’t miss any important moments! In the app’s calendar, mark the perihelion date of C/2023 A3 and set a notification to stay ready for the big event.

Stay updated with the latest comet news

Sky Tonight's Astronomy News section keeps you up to date with all the news about C/2023 A3 and other celestial events, with expert insights and tips.

Bonus features

★ Analema — the comet’s path through the year

See the comet’s path through the year in a beautiful curve. You can adjust the form of the curve, interlay it on your sky in AR-mode. Photographers used to take shots for the whole year to make this curve, you can do it in a few seconds!

★ Photo Editor — capture & share your night sky

Capture stunning shots of the night sky with the comet and other celestial objects overlaid on your photos. Use the built-in editor to add more detail. Share your photo of the comet’s path with your friends, and impress others with your unique astronomical photos!

Sky Tonight isn’t just about tracking comets – it's your complete stargazing companion, packed with tools to make every night under the stars unforgettable. Explore the cosmos like never before and enhance your celestial adventures with Sky Tonight!
Updated on
3 Apr 2026

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.
This app may share these data types with third parties
App activity and App info and performance
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

4.6
76.8K reviews
Glen Picadash
18 May 2026
I used to love this app. Now with the update, I can't not point up and get the GPS to aim straight up. I have no issues with Stellarium. Aiming straight up just puts the guide lines circle over to the North at about 45 degrees. Really disappointing. worked perfect before the update. Can't track anything because the phone won't show where I'm pointing. S25 Ultra. Worst part is, I paid for the full version and it just won't calculate.
1 person found this review helpful
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Wade Brown
15 February 2026
Well this is totally useless! I expect ads, but if I can't get past them to use the actual app what's the point? Every time I try to open the app, I get to the "select language" screen, an add pops up and I can't get past it. The app won't open and I can't do anything else. I just get redirected to Google Play store for some other app. As far as I can tell this is just an ad generator. Maybe that's just a glitch for your app developers, or maybe it's intentional. But this is getting uninstalled.
23 people found this review helpful
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Julie Lewis
1 April 2026
I love the idea... but the app is difficult to use. It's hard to zoom in and actually find what you're looking at. Plus, there's the obvious problem that it shows everything that would be visible if it weren't for light and air pollution. Makes it hard to have points of reference to know what you're actually looking at. Also, the controls are unwieldy for a handheld device. I feel like I need a 3rd hand to be able to use it.
9 people found this review helpful
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What's new

We’ve made a few fixes and improvements in this update:
• Fixed issues with light pollution
• Fixed an issue where objects could go beyond the altitude graph boundaries
• Fixed smart links inside the app

Thanks for exploring the sky with us — update the app and keep looking up!
Enjoying Sky Tonight? Please leave a rating and review — it really helps us grow.
If you have any issues, contact our Support team via the app’s Support section, and we’ll be happy to help.