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Cách khám phá Cepheid Variable Star 3D Explorer
Open the Cepheid Variable Star 3D Explorer, watch the pulse, then switch period presets to compare Leavitt Law brightness.
- Open https://freetoolonline.com/space-3d/cepheid-variable.html and wait for the pulsing star.
- Read the facts panel: formula, computed M_V, Delta Cephei figures.
- Press Delta Cephei, short period, and long period to compare.
- Pause to freeze the light curve strip.
- Compare with Cosmic Distance Ladder 3D for the wider ladder, or Stellar Magnitude 3D for brightness ranking.
Cepheid variable key figures
Cepheid variable key figures put Delta Cephei's ~5.366-day period, visual magnitude 3.5 to 4.4, and the Leavitt Law M_V = -2.43(log10 P - 1) - 4.05 in one table before you open the 3D explorer.
| Quantity | Value |
|---|---|
| Delta Cephei period | ~5.366 days |
| Visual magnitude range | 3.5 to 4.4 |
| Leavitt Law | M_V = -2.43(log10 P - 1) - 4.05 |
Next: the when guide or vs alternatives. Open the Cepheid Variable Star 3D Explorer.