Star Map Sky Guide: SpaceUtil

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About this app

SpaceUtil brings the whole sky into one app: an AR star map, a 3D solar system, live ISS tracking and the current position of the Voyager probes. No account, and almost everything is computed on your device without an internet connection.

■ AR STAR MAP
Point your phone at the sky and the stars and constellations in that direction appear on screen. 120,000 stars, all 88 constellations with lines, names and artwork, an AR mode that overlays the camera, and a red night mode. Search for a star, planet or constellation and an arrow guides you to it. Rewind or fast-forward time to see the sky on any date.

■ 3D SOLAR SYSTEM
An orrery with the Sun, the eight planets and major moons in their real positions. Rotate and zoom with your fingers, tap a planet for its story. Live distances to each planet, Jupiter's four big moons, Saturn's rings, conjunctions and alignments.

■ LIVE ISS TRACKER
See where the International Space Station is right now on a 3D globe and a world map, updated every second. Visible pass predictions for your location with time, direction and altitude, plus a sky-path view.

■ WHERE ARE VOYAGER 1 AND 2?
Follow the two farthest human-made objects on a 3D map of the solar system with their current distance from Earth. Computed on your device from NASA/JPL reference data.

■ TONIGHT
A briefing on tonight's observing conditions from the moon phase and twilight times, with the top 5 objects to look at now. Sun, moon and planet rise and set times; civil, nautical and astronomical twilight.

■ MOON, ECLIPSES, METEOR SHOWERS
Moon phase calendar and lunar age, upcoming solar and lunar eclipses, every major meteor shower with its peak night and how bright the moon will be.

■ ASTROPHOTOGRAPHY HELPERS
500-rule exposure calculator, Milky Way planner, golden and blue hour, moonrise direction.

■ LEARN AND PLAY
Constellation myths, a space quiz, the sky on your birthday, light travel time, light-year/AU/parsec converter, an exoplanet catalog, an observation log with badges.

■ PRIVACY
Location is used only on the device to align the sky map, and the AR camera image is never captured, stored or sent anywhere. No account, no cloud.

A single banner ad at the bottom of the screen supports development. No full-screen or video ads.

Data sources: HYG star catalog (CC BY-SA), CelesTrak, NOAA SWPC, NASA/JPL Horizons. SpaceUtil is not affiliated with or endorsed by these organizations.
Point your phone at the sky to see constellations. 3D solar system, ISS tracker.
Updated on
Sep 7, 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
    Device or other IDs
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit

What’s new

First release of SpaceUtil.
• AR star map: point your phone at the sky to see stars and all 88 constellations
• 3D solar system, live ISS tracking with pass predictions, where Voyager 1 and 2 are now
• Moon phases, rise/set times, meteor showers, eclipses, planet facts
• Tonight's observing briefing, observation log, space quiz
• Almost everything works offline — no account, data stays on your device
Content rating
Everyone
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App support

About the developer
(유)텐즈소프트
tanzsoft@naver.com
강서구 공항대로 525 1501호, 1501호-나51호 (등촌동,비원오피스텔) 강서구, 서울특별시 07563 South Korea
+82 70-4150-7577

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