
About
This app helps astrophotographers identify the best deep-sky objects to photograph from their location. It scores targets based on various factors like moon phase and sky brightness, and provides tools for planning imaging sessions and framing shots.
What's New in ATLAS Tonight's Sky
1.3.1
November 8, 2026
My List (Astronomer) has two states, To image and Imaged. Mark a target Imaged and add the hours and nights you put into it. They show on its card and in My List. The year for a target opens from its card. On Targets, Trips is its own view. Location and Gear open each setting on its own page, with Back at the top. A new rig or place is named for you; rename it on its page. Gear search sits at the top of its page, above the keyboard. A place or rig on a trip links to that trip, and each night on a trip opens in a sheet you swipe down to close. Turning off a layer on the Sky tab hides its names too. Signed in, your rig in use stays the same on each of your devices. A trip keeps a rig you have deleted until you remove it from the trip. Fixes for adding a rig, horizon lines and trips.
MoreSubscriptions & In-App Purchases
Astronomer Monthly
Access the full sky and features
User reviews
FAQ
What is ATLAS Tonight's Sky?
ATLAS Tonight's Sky is an astrophotography planning application designed to help users identify the most suitable deep-sky objects for imaging based on their location and current sky conditions. It scores potential targets by considering factors like altitude, moon separation, and sky brightness.
How does ATLAS Tonight's Sky score targets?
ATLAS Tonight's Sky scores targets by weighing six key factors: altitude, separation from the moon, moon illumination, sky brightness, time within the imaging window, and seasonal position. This provides a ranked list of the best objects to photograph.
Does ATLAS Tonight's Sky offer a 3D sky map?
Yes, ATLAS Tonight's Sky features an interactive 3D sky map that includes Messier, NGC, IC, Caldwell, and Sharpless objects. Users can spin, zoom, and scrub through time to explore celestial bodies and find when they are highest in the sky.
Can I plan my astrophotography for the future with ATLAS Tonight's Sky?
The 'Astronomer' subscription offers a twelve-month planner that helps you determine when you can shoot specific targets and for how long, based on your location, horizon, and gear. This feature allows for year-ahead planning of imaging projects.
What are the subscription options for ATLAS Tonight's Sky?
ATLAS Tonight's Sky offers an optional 'Astronomer' subscription. This subscription includes features like target alerts, a twelve-month planner, Universe view, mosaics, and access to fainter NGC, IC, and Sharpless objects. Pricing is available monthly or annually, with the annual plan including a free trial.
Is ATLAS Tonight's Sky suitable for beginners?
Yes, ATLAS Tonight's Sky was built by an astrophotographer from a light-polluted rooftop, indicating its design considers practical challenges. The app aims to help users spend clear nights on the right target, which is beneficial for both experienced and novice astrophotographers.
What devices does ATLAS Tonight's Sky support?
ATLAS Tonight's Sky is supported on iPhone and iPod devices. The app is available for free with optional in-app purchases for advanced features.
How often is ATLAS Tonight's Sky updated?
The latest version of ATLAS Tonight's Sky is 1.3.1, last updated on November 8, 2026. While specific update frequency isn't detailed, this indicates ongoing development and support for the application.





