Astronomy: About Stars (original) (raw)

There are numerous types of stars and also in the way how they produce energy they differ. Here an overview is given:

| 1. The Life of Stars 2. The Measured Values 3. Young Stars 4. Main Sequence Stars 4.1 Red Dwarfs 4.2 Orange, Yellow and White Stars 4.3 Blue Stars 5. Old Stars 5.1 Red Giants 5.2 Red Supergiants 5.3 Wolf-Rayet Stars 5.4 LBV 5.5 Intermediate Stages 5.6 White Dwarfs 5.7 Extreme End-Stages, Supernova 6. Novae 7. Brown Dwarfs 8. Planets 8.1 Planemos 9. Galaxies 10. Cosmology 11. Alien Life in Space | | | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | |

The Pleiades, the brightest star is Alkyone.
Photo: Anglo-Australian Observatory/Royal Obs. Edinburgh