Stella is a planetarium for iPhone and iPad. Point your device at the sky and it shows you what is there: every star you can see and many more, the planets with their real phases and moons, the constellations, the Moon as it looks tonight. Accurate, realistic, and yours for a single purchase: no ads, no subscription, no account.
Hold the phone up and the sky follows it, with true north from the compass and your location. Or drag and pinch to look around by hand.
When you open the app: sunset, full darkness and dawn, the Moon's phase and hours, which planets are up and when, meteor showers and what the Moon is passing.
Zoom into Jupiter's bands, Saturn's rings or the Moon's craters, or open any body in a 3D view you can turn around, lit by the Sun exactly as it is right now.
Rocky planets and giants at true scale, the solar system in motion, the Kuiper belt beyond Neptune, and worlds around other stars such as TRAPPIST-1 and Proxima b.
Run the clock forward or back, from a minute to a day per second, or jump to any date. Watch the planets wander and the Moon change.
Everything turns red, screen and sky, so your eyes stay adapted to the dark at the eyepiece.
118,000 stars from the Hipparcos catalog, official IAU names, planetary positions from astronomy-engine, a daytime sky with real atmospheric scattering.
Everything is on the device: catalogs, maps, tours. Nothing is downloaded, nothing is sent.
Stella uses your location and your device's motion sensors only to compute the sky above you, on the device. There is no account, no analytics, no server of ours. See the privacy policy.
Read the support page, or write to support@priet.us.
Stella es un planetario para iPhone y iPad. Apunta el dispositivo al cielo y te enseña lo que hay: todas las estrellas que puedes ver y muchas más, los planetas con sus fases y sus lunas de verdad, las constelaciones, la Luna tal como está esta noche. Preciso, realista y tuyo por un solo pago: sin anuncios, sin suscripción, sin cuenta.
Ayuda en la página de soporte o en support@priet.us. Política de privacidad.