The sky the night you were born
Any date, any place. Make a poster of the stars overhead.
Style
Positions are computed on your device: stars from a bright-star catalogue, planets from orbital elements, the Moon from a lunar theory good to a fraction of a degree. Accurate enough for naked-eye stargazing. Star, constellation and deep-sky data adapted from d3-celestial by Olaf Frohn (BSD-3-Clause), derived from the Hipparcos and Yale Bright Star catalogues.
Night Sky is a live star map for your browser. Drag to look around, tap any star, planet or constellation for details, scrub time forwards and backwards, check what's up tonight and upcoming meteor showers, or make a poster of the sky the night you were born. Night Sky Pro adds a guided tour, an eclipse finder and HD poster prints.
No. Night Sky runs in your browser, is free and needs no sign-up. Your location, settings and logbook stay on your device.
On a phone, tap Point and hold it up to the sky. The map follows your phone's motion sensors so you can name the stars and planets you're looking at.
Positions are computed on your device: stars from a bright-star catalogue, planets from orbital elements and the Moon from a lunar theory good to a fraction of a degree. That is accurate enough for naked-eye stargazing.
Yes. Use the time controls to travel to any date, or open Born to make a poster of the stars overhead on any date and place.
Yes. The live map, point mode, tonight's sky, time travel and standard-size posters are free, with no ads and no account. Night Sky Pro is an optional one-time upgrade ($2.99) that adds the eclipse finder, the guided tour and HD poster prints.
About Night Sky: screenshots, features and price ›
Guide: How to find constellations