Stargazing, across time
Ten Thousand Skies
Pick a place. Turn the year. See the stars that were above it, or look ahead to the skies still to come.
A sky with a memory
Anywhere on Earth.
Twenty thousand years.
Choose any latitude and longitude, then enter a year from 10,000 BC through AD 10,000. Ten Thousand Skies draws the sky above that place and lets the stars drift into their new positions as you travel.
The app calculates the slow wobble of Earth’s axis. That motion changes the north celestial pole over time. Go far enough back and dim Thuban takes Polaris’s place.
Inside the app
Move through the night.
Start with the sky itself. Open the Logbook when you want a place and year worth visiting, or set your own coordinates.
Three ways to travel
Tonight, a moment, or a place.
Begin with the sky above you, open a moment from the Logbook, or choose coordinates of your own.
Start with the stars above you, with direction, place, and year in view.
Choose a historic night from the Logbook and watch the sky move into place.
Use a listed destination or enter exact coordinates anywhere on Earth.
The logbook
Nights worth visiting.
Begin with a curated moment, return to tonight’s sky, or save a destination of your own.
- 01
7,500 BC
Göbekli Tepe
The oldest sky the app can reach.
- 02
c. 2,560 BC
The Great Pyramid
A northern sky with Thuban near the pole.
- 03
15 July 1969
Kennedy Space Center
The night before Apollo 11 lifted off.
Stories in the dark
Every constellation is written.
Tap any of the 88 constellations to see its figure and read how it found a place in the sky. The stories range from old Greek myths to the telescope, air pump, and other inventions drawn overhead centuries later.
Tap a star and Ten Thousand Skies tells you what the catalog actually knows: its name, brightness, distance, and motion when available.
Nothing leaves your iPad
The whole sky fits offline.
No account. No app analytics. No ads. No network connection. The star catalog, constellation stories, and astronomical calculations are all built in.
Location is optional and used only on your device to draw the sky above you. You can always choose a place manually instead.
Read the privacy policyTen Thousand Skies
The night is larger than now.
Coming soon to the App Store for iPad.