DayStar 2025 Planisphere — Rotating Star Chart and Night Sky Map for Beginner Stargazers

A planisphere is a simple, rotating star chart — a night sky map that shows exactly which constellations are above you at any date and time. Dial in today's date and the hour, hold it overhead, and the open window matches the real sky. No batteries, no app, no internet: just turn the wheel and start finding constellations.

Who it's for
Beginner stargazers, families, and students learning their way around the night sky. New to stargazing? See our astronomy 101 stargazing basics guide.

• Rotating date-and-time wheel: line up the date and hour to see the sky for that moment.
• Learn the constellations: shows the major constellations and bright stars overhead.
• Latitude-matched: choose the version for your location (around 34°N or 41°N).
• No power needed: works anywhere, anytime — a perfect companion at the telescope.
• Beginner-friendly: the easiest way to start recognizing the night sky.

How does a planisphere work?
You rotate the outer wheel to line up the date with the time. The oval window then shows the constellations currently above your horizon.

Which latitude version should I choose?
Pick the one closest to your latitude — around 34°N or 41°N — so the star positions match your sky.

Do I need any batteries or apps?
No. A planisphere is completely mechanical and works anywhere, even with no phone signal.

Is it good for kids and beginners?
Yes — it's one of the simplest and most durable tools for learning the constellations.