Constellations and planets in your sky right now, and the solar system live
Wondering where the constellations, stars and planets are tonight? A live sky map for your location, plus a real-time solar-system orbit simulator.
Tonight's sky
Tonight's sky from your location and the solar system in motion — planets, comets and probes on real orbits, eclipses replayed to the minute. Plus every scale from a proton to the universe, at true ratio
🎂 The sky on your birthday
Enter a date of birth and see the constellations, planets and moon phase of that exact night — shareable as a single link.
See my sky →Upcoming sky events
All events →MMX launch — Martian moon sample return
JAXA's Martian Moons eXploration — the first attempt to land on Phobos a…
BepiColombo enters Mercury orbit
Seven years and nine flybys end as the ESA–JAXA spacecraft slips into Me…
Europa Clipper Earth flyby
NASA's largest planetary spacecraft swings past Earth for the speed it n…
Hera arrives at Dimorphos
ESA's Hera reaches Dimorphos — the asteroid DART deflected in 2022 — to …
Object guide
All objects →Explore
Pick by what you want to see🔭 Sky & Solar System
Your sky now, the live solar system and the 3-D neighbourhood of the Sun — pick a time, place and body, and share it as one link
Sky view
The real sky from your location — constellations, planets, satellites, even eclipses. Tap a star for its name, distance and story
“Where is Saturn right now?”Open →Orbits
The solar system in real time — pick a planet down to its moons, replay probe trajectories and events
“When does Halley return?”Open →Nearby stars in 3-D
Our stellar neighbourhood in true 3-D — rotate it, zoom out to the Milky Way and Andromeda
“Which way is the nearest star?”Open →Distances
From the Sun to the Oort cloud at true scale
“How far has Voyager gone?”Open →📏 Scale lab
Size, mass, speed and atoms on one ruler — from a proton to the observable universe
Size & mass ladder
One ladder from 10⁻¹⁵ m to 10²⁷ m — compare by mass too
“How small is Earth next to the Sun?”Open →Speeds
From a snail to light on one ruler
“How much faster is light than a bullet?”Open →Atoms
From protons to molecules — the invisible world to scale
“How empty is an atom?”Open →