Planisphere

Quick answer: The Planisphere is a rotating star-chart tool that helps students and astronomy learners identify visible stars and constellations for any selected date and time, making it easy to see how the night sky changes through the year.

Product Description

The LabEquip Planisphere provides a practical way to study the apparent arrangement of stars and constellations in the night sky. By rotating the adjustable sections of the chart to a chosen date and time, learners can explore which celestial objects may be visible at that moment.

A planisphere demonstrates that the visible sky changes according to observer location, date and time, and supports astronomy lessons covering constellations, seasonal star patterns and the apparent rotation of the night sky. Exact chart diameter, materials and latitude range are not stated in this listing; we have not invented these figures and recommend confirming them with our sales team before ordering.

Specifications

Suggested Use

• Rotate the adjustable disc to align the current date with the current time.
• Hold the planisphere overhead, matching its orientation to the compass directions.
• Identify visible constellations and stars shown within the viewing window.
• Repeat at different dates and times to observe how the visible sky changes through the year.

Care & Maintenance

• Keep the rotating discs clean and free of dust for smooth movement.
• Store flat or in a protective sleeve to avoid bending.
• Avoid exposure to moisture, which can warp printed charts.
• Handle the central rivet or fastening point gently to preserve rotation.

Why Choose LabEquip

LabEquip supplies physics, chemistry and biology lab equipment, STEM kits and astronomy models for schools, colleges and institutional laboratories, with honest specifications and responsive sales support. For related astronomy learning tools, see our LabEquip homepage to browse our full catalogue of astronomy lab kits.

Frequently Asked Questions

What is a planisphere used for?

It is used to identify which stars and constellations are visible in the night sky for a given date, time and location.

What latitude range does this planisphere cover?

The exact latitude range is not stated in this listing. Please confirm suitability for your location with our sales team before ordering.

Is the planisphere suitable for classroom use?

Yes, it is designed as an accessible teaching tool for astronomy lessons on constellations and the apparent rotation of the night sky.

Do I need any other equipment to use it?

No additional equipment is required; the planisphere is a standalone reference tool, though a dim red flashlight can help with night-time reading.

How should I store the planisphere?

Store it flat or in a protective sleeve, away from moisture, and keep the rotating discs clean and dust-free.

Last Updated: September 2026