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When to Use Constellation Sphere 3D Explorer - Limits
Open Constellation Sphere 3D Explorer when you need a browser celestial sphere with RA/Dec bright stars, classic asterism sticks, and the fact that IAU lists 88 constellations - without installing a planetarium.
- Classroom warm-up on RA/Dec coordinates
- Homework preview of Orion or the Big Dipper asterism
- Quick check that asterisms differ from official IAU boundaries
Skip it if you need every IAU boundary polygon or live satellite overlays - that is a different, heavier dataset.
Everything stays on your device: no upload, no account, and the facts panel cites the IAU count of 88 beside the embedded bright-star sample.
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