Horizon-AR
Live Astro Paths Tracking
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Point your phone at the night sky to see planets, the Moon, the Sun, and all 110 Messier deep-sky objects overlaid in real time. Rise/set times included.
Hold up your phone and watch the night sky come alive. Horizon-AR uses your camera, GPS, and device motion to place real-time augmented reality overlays exactly where celestial objects appear in the sky above you.
TRACK THE SOLAR SYSTEM
Follow the Moon, Sun, Mercury, Venus, Mars, Jupiter, and Saturn with a live arc overlay showing each object's full path across the sky tonight. Rise and set times update in real time based on your precise location.
110 MESSIER DEEP-SKY OBJECTS IN AR
Activate Hot Targets mode and see every Messier object currently above your horizon floating in the AR view — galaxies, nebulae, open clusters, and globular clusters, each colour-coded by type.
Tap any label to open a detail card showing:
• Object type and Messier catalogue number
• Common name (Andromeda Galaxy, Orion Nebula, Pleiades…)
• Current altitude above the horizon
• Apparent visual magnitude
• Recommended instrument — naked eye, binoculars, or telescope
• Favourite toggle, saved across sessions
When objects cluster together, a single tap fans them out radially so you can reach each one individually.
FILTER BY OBJECT TYPE
Narrow the Hot Targets overlay to just galaxies, just nebulae, or just star clusters with a single tap. Objects you've starred appear in your Nightly Overview for quick access every session.
FREEZE THE SKY
Long-press anywhere to lock the entire AR view — overlays and camera image — as a still frame. Perfect for star parties, sketching, or sharing a screenshot. Tap once to unfreeze.
NIGHTLY OVERVIEW
Open the Tonight sheet for a full list of rise, transit, and set times for all solar system objects plus your Messier favourites, sorted for the coming night at your location.
WORKS WITHOUT FULL PERMISSIONS
No camera access? Horizon-AR switches to a star-field background with altitude rings and an azimuth grid so you can still explore the sky. Declined location? Enter coordinates manually and continue without interruption.
No account. No subscription. No ads.
Privacy: your location and camera data never leave your device.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor fixes, stability improvements, and new button labels.
The developer, Michael Bartos, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Bartos
- Size
- 43.6 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 by Michael Bartos