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When to use HR Diagram 3D Explorer

Use the HR Diagram 3D Explorer when you need a quick browser view of main sequence, giants, and white dwarfs - and skip it when you need a full stellar catalog.

Classroom demos linking temperature and luminosity on the HR diagram
Showing the Sun at Teff ~5,772 K and L = 1 Lsun against MS, giant, and WD loci
One-screen refresher before star-lifecycle or black-body-radiation siblings

This page does not plot a full stellar catalog, does not fetch Gaia or Hipparcos data, and uses schematic point clouds for teaching loci only.

Walk the controls in the step-by-step guide, or compare options in vs alternatives. Open the HR Diagram 3D Explorer.

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Last updated: Jul 15, 2026

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