Stellarium for iOS and Android

The night sky, in your pocket

Point your phone at the sky and know what you are looking at. Stellarium Mobile is the planetarium app by the original creator of Stellarium: every star, planet, satellite and nebula, rendered the way you see them tonight.

Free to download. Works without an internet connection. Stellarium Plus adds the full catalogues, observation tools and telescope control.

A dawn sky with the Moon and the planets over a farm, seen through the app

1.6 billionstars, with Stellarium Plus

2 milliongalaxies, nebulae and clusters

Thousandsof asteroids and comets

Every planetand their moons, in 3D

Identify

Hold it up. That bright dot has a name.

The app follows your phone's sensors, so the screen shows exactly the patch of sky you are pointing at, with the horizon, the atmosphere and the glow of dawn or dusk drawn as they are right now.

The sky at any time and any place on Earth
Constellations with their figures and stories from sky cultures around the world
A realistic landscape and atmosphere, sunrise to sunset, with refraction simulated
A red night mode that keeps your eyes dark-adapted

Ursa Major with its figure, lines and boundary over a treeline

Explore

Zoom until the rings of Saturn fill the screen

High-resolution imagery of the planets and their moons, a full-sky survey behind the stars, and deep-sky objects from a combined catalogue of millions of nebulae and galaxies. Online, the whole Gaia catalogue streams in as you zoom; offline, a built-in catalogue still comes with you.

The Moon and the planets with multi-resolution surface imaging
The International Space Station and most visible satellites, with their passes
All known comets and thousands of minor bodies

Jupiter with Io, Europa and Callisto, and a moon's shadow on the clouds

Observe, with Stellarium Plus

Plan the night, then drive the telescope

Stellarium Plus is the upgrade for people who take their observing seriously. It turns the app into an observation planner and a telescope controller, in the same interface.

Tonight at a glance: rise and set times, what is visible when, and the satellite passes
A calendar of upcoming astronomical events
Light pollution simulated for your site
Ocular and camera simulation: see an object the way your own instrument will show it
Telescope control: point any connected mount at the object on the screen

The Observe screen: sunset and sunrise, visibility bars of the planets tonight and the satellite passes

Free and Plus

One app. Upgrade when you want more.

Stellarium Mobile is free, with no ads and no account required. Stellarium Plus is unlocked inside the app, as a subscription with a free trial or as a one-time purchase.

Stellarium Mobile · free