SPACE AR: Stargazing Star Map
Constellations, planets & ISS
Only for iPhone
$2.99 · Designed for iPhone. Not verified for macOS.
iPhone
Point your phone at the sky: stars, planets & satellites in AR. Tonight's Highlights from real weather, plus a planetarium and time machine. No ads, no subscription.
SPACE AR turns your phone into a window on the night sky. Hold it up and stars, constellations, planets and satellites appear overlaid on the real sky. It’s built not just for looking, but for observing — combining research-grade astronomy with the actual local weather to show how the sky really looks, here and now.
■ Highlights
• ~8,900 stars and all 88 constellations, plus the Sun, Moon and planets in AR, with constellation lines and names.
• Live satellites, with pass predictions for the ISS and others — appearance direction, max altitude, visibility and the cloud cover at pass time.
• Tap any object or constellation for full data: magnitude, distance, spectral type, proper motion, RA/Dec (J2000 and apparent), altitude/azimuth, hour angle, airmass, and rise / transit / set.
• Engaging notes — mythology, history and fun facts you can share on a walk.
■ Research-grade precision
• Apparent positions with precession, nutation, annual aberration and proper motion; the Moon is corrected for topocentric parallax (up to ~1°).
• Atmospheric refraction corrected with the measured pressure and temperature.
• Instrument HUD with sidereal time, Julian Date, ΔT and your observing location.
■ Tools for observers
• Real weather (Open-Meteo): observability, transparency, dew risk and an “effective limiting magnitude” — know what’s visible tonight.
• Planetarium mode: darken the camera and watch colorful stars twinkle.
• Time machine: set any date and time, fast-forward or rewind the sky.
• Location simulation: tap the map or enter coordinates to see the sky from anywhere on Earth.
• Layer and magnitude controls to focus on exactly what you want to observe.
■ Made right
• One-time purchase. No ads, no subscription, no account.
• English, Japanese, Korean and Chinese.
• The star catalog is built in, so the sky works offline (weather and the latest satellite data use the internet).
Hold up your phone and the sky becomes a star chart — for a casual walk, a date, or a serious night of observing.
Note: the AR overlay relies on your device’s compass and may be off by a few degrees; the numeric values for each object are computed rigorously.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.2.0
• New "Easy explanation": tap an object, then swipe the info card sideways to switch to a friendly, story-like description (with furigana in Japanese) — perfect for kids, families, and beginners.
• Covers the Sun, Moon, planets, constellations, bright stars, and famous sights like the Pleiades, the Orion Nebula, and the Andromeda Galaxy.
• Other small refinements.
The developer, Gen Takagaki, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gen Takagaki
- Size
- 12.4 MB
- Category
- Entertainment
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later.
• iPhone 6S
• iPhone 6S Plus
• iPhone SE (1st generation)
• iPhone 7
• iPhone 7 Plus
• iPhone 8
• iPhone 8 Plus
• iPhone X
• iPhone XS
• iPhone XS Max
• iPhone XR
• iPhone 11
• iPhone 11 Pro
• iPhone 11 Pro Max
• iPhone SE (2nd generation)
• iPhone 12 mini
• iPhone 12
• iPhone 12 Pro
• iPhone 12 Pro Max
• iPhone 13 Pro
• iPhone 13 Pro Max
• iPhone 13 mini
• iPhone 13
• iPhone SE (3rd generation)
• iPhone 14
• iPhone 14 Plus
• iPhone 14 Pro
• iPhone 14 Pro Max
• iPhone 15
• iPhone 15 Plus
• iPhone 15 Pro
• iPhone 15 Pro Max
• iPhone 16
• iPhone 16 Plus
• iPhone 16 Pro
• iPhone 16 Pro Max
• iPhone 16e
• iPhone 17 Pro
• iPhone 17 Pro Max
• iPhone 17
• iPhone Air
• iPhone 17e
• iPhone 18 Pro
• iPhone 18 Pro Max
• iPhone Duo - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Korean, Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Takagaki.
