See the night sky on any date
Pick a date, time and place — the real stars appear instantly. Turn any moment into a framed print.
The interactive sky couldn't load right now — but you can still explore your moment. Create your personalised star map →
Explore the real night sky for any date and place
Every night the sky looks different. The exact stars, planets and constellations visible from your back garden depend on where you are on Earth and when you look up. With the Night Sky Explorer you can travel back (or forward) in time to any date and location and see the sky exactly as it appeared — or will appear — overhead. Find the sky from the night you were born, the evening of your wedding, or the moment you fell in love.
How it works
- Enter your moment. Type a date, a time and a place into the control bar above. Any date from the distant past to the far future is supported.
- Reveal the sky. The live star-map engine calculates the precise position of every star, planet and constellation for your coordinates and renders them in real time inside your browser.
- Turn it into a print. When you find the sky that moves you, tap “Make this a print” and the date, time and location are carried straight into the star map customiser — ready to frame and ship worldwide.
Popular occasions
- Birthday — the sky on the night you were born
- Anniversary — the stars above on your wedding or first-date night
- Memorial — a tribute to someone you love, frozen in time
- Wedding gift — a personalised keepsake guests will treasure for decades
Frequently asked questions
How accurate is the Night Sky Explorer?
The engine is built on the d3-celestial library, which uses the same astronomical algorithms powering planetarium software. Star positions are drawn from the Yale Bright Star Catalogue, and planetary positions are calculated with full ephemeris data — giving you arc-minute-level accuracy for any date between roughly 3000 BCE and 3000 CE.
Can I see which stars were visible from a specific city?
Yes. Type any city or town into the Place field and the sky rotates to the horizon for those exact coordinates. The airy projection shows the full dome of the sky as it appeared overhead, with the horizon wrapped around the edge. Learn more about how the sky changes with location.
What's the difference between the Explorer and a star map print?
The Explorer is a free interactive tool — great for discovering and exploring. A star map print is a beautifully typeset, professionally printed keepsake you keep forever. Add a personal message, choose a frame, and we ship it to your door within a few days.
Sky engine: d3-celestial. Constellation names: IAU. Star distances and spectral types from the HYG database (Hipparcos · Yale · Gliese) by David Nash, used under CC BY-SA 4.0. Constellation figure artwork: Stellarium “western” sky culture by Johan Meuris and contributors, used under CC BY-SA 4.0.