Explore 31 star systems: Our Sun, its 10 nearest neighbors, and famous stars and worlds out to 2,940 light-years.
View our Sun in the sky from other worlds
New systems and discoveries are added with free updates — the universe keeps growing.
Explore 31 star systems: Our Sun, its 10 nearest neighbors, and famous stars and worlds out to 2,940 light-years.
New systems and discoveries are added with free updates — the universe keeps growing.
Every feature is grounded in real published data from NASA, ESA, and peer-reviewed catalogs.
A real 3D map of every star system in the app. Drag to orbit, zoom out to see the full neighborhood, tap a star to visit. Sol sits at the center with its nearest neighbors labeled by name and distance in light-years.
Every planet, dwarf planet, and moon gets a full 3D model you can orbit. View real physical data — mass, radius, temperature, orbital period — and tap "View Full Profile" for the complete science card linked to official NASA pages.
A triple-star system just 4.37 light-years away. Explore Proxima Centauri and its confirmed planets b, c, and d. Tap "Find Sol" to locate our Sun from their perspective — a faint star in an alien sky.
A red giant so close to its white-dwarf companion that hydrogen streams between them in a fiery accretion disk. Watch the mass transfer in 3D, then trigger the nova to see what happens when the pressure ignites.
Seven Earth-sized planets orbiting a single ultracool dwarf star 40.7 light-years away. TRAPPIST-1 e sits in the habitable zone — a terrestrial world where liquid water could exist on the surface.
Watch a three-dimensional lattice of geodesics bend and warp around each star. The more massive the star, the deeper the well. Sirius, Betelgeuse, and every system in between — visualized in real time as you orbit.
Stand on Barnard c and find our Sun in the sky — magnitude 1.1, just 5.9 light-years away. The constellations are altered: Gemini, Orion, Monoceros, and Canis Major all shift from this new vantage point. Every sky is computed from real stellar positions.
A tidally locked world where the sun never rises on the night side. Our Sun appears at magnitude 3.0, 14 light-years away. Taurus and Orion are altered from here — familiar shapes stretched by the shift in perspective.
Every total and hybrid solar eclipse through 2051, city by city. The August 2, 2027 eclipse crosses Morocco, Spain, Algeria, Libya, Egypt, Saudi Arabia, Yemen, and Somalia — 6 minutes 23 seconds of totality. Set a reminder and never miss one.
Three questions, one honest recommendation. No brand deals — just the setups astronomy clubs point beginners toward. Then see what each world actually looks like through a backyard telescope: Moon, Sun, Mercury, Venus, and beyond.
Every star and planet gets its size, mass, temperature, distance, and orbit from peer-reviewed sources. Each body's profile links to its official NASA page when available. Where data is missing, we fill gaps with honest guesswork — and tell you exactly where.
Sources: NASA Exoplanet Archive • SIMBAD • HYG Database • IAU • ESA Gaia DR3
Preserves your night vision at the telescope. The entire interface shifts to deep red — no blue light leaking into your dark-adapted eyes. Plus battery saver mode, softer haptics, and your choice of Scientific, Metric, or Imperial units.
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From our own Solar System to deep-sky landmarks thousands of light-years away.
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