Quick Answer: The Constellation Viewer Model STEM Lab is a viewer with an internal LED light and 12 interchangeable perforated star charts, so students can study constellations such as Ursa Major, Orion and Cassiopeia indoors. It measures about 280 mm x 180 mm x 140 mm.
Last updated: October 2026
Key Features
12 interchangeable constellation charts, perforated to show the stars
Internal LED light source behind the chart
Shielded viewing cowl with a glass magnifying element and a focus slide
Light-tight ABS housing on weighted feet
Loading slot for changing charts quickly
Technical Specifications
Specification
Value
Constellation charts
12, interchangeable
Light source
Internal LED
Optics
Viewing cowl with glass magnifying element
Housing
ABS, light-tight, weighted feet
Size
Approx. 280 mm x 180 mm x 140 mm
About This Product
A chart is slid into the slot, the LED is switched on and the student looks through the cowl, adjusting the focus until the points sharpen into stars. Students sketch each pattern in their notebooks and swap charts to compare constellations of different seasons, which helps when learning star patterns, celestial mapping and why the night sky changes through the year.
Frequently Asked Questions
How many constellations come with the Constellation Viewer Model STEM Lab?
12 interchangeable charts are included, among them Ursa Major, Orion and Cassiopeia.
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