Free tools

Star & sky tools

Free, no login, no app. The same real astronomy that powers our star map posters — pointed at whatever you want to know about the sky.

See the sky now

Set your location and look up.

What's up right now from where you are — planets, bright stars, and constellations, updating live.

Whether tonight's northern lights are strong enough to reach your latitude, read from NOAA's live data.

Never miss the good nights.

Every meteor shower, eclipse, supermoon, and conjunction this year — and which are visible from you.

A live countdown to the next shower peak, with the best hours to watch in your own timezone.

A live countdown to the next time two planets pair up, and how well placed it is from where you are.

Every 2026 full moon, its old name, which ones are supermoons, and your local moonrise time.

Turn a moment into a star map.

The real night sky on your birthday, your anniversary, or any night in history — pick a date and place.

Your zodiac sign, plus the constellation the Sun was actually passing through on the day you were born.