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  1. The Sun (Sol) has an apparent magnitude of - 26.74
  2. Siruis (Dog star) with an apparent magnitude of -1.47 (Brightest in the Northern Hemisphere)
  3. Canopus with an apparent magnitude of -0.72 (Brightest in the Southern Hemisphere)
  4. Arcturus with an apparent magnitude of -0.04 (Variable)
  5. Alpha Centauri A with an apparent magnitude of -0.01
  6. Vega with an apparent magnitude of 0.03
  7. Rigel with apparent magnitude of 0.18
  8. Procyon with apparent magnitude of 0.34
  9. Achernar with apparent magnitude of 0.50
  10. Betelgeuse with apparent magnitude of 0.58 (Variable)

A lower number means more brightness. All of these are apparent magnitudes. If you mean intrinsic magnitude, the answers are somewhat different. Sirius and Alpha Centauri A are bright because they're close to us. Canopus, on the other hand, is much brighter, but also much further away (Sirius is about 8 light years away; Canopus is more than 300 light years away).

Off subject:

Some planets are brighter (in apparent magnitude) than stars; for example, when Venus appears in the sky, she is always the brightest object (after the Sun and the Moon). In fact, Venus is bright enough to be seen in the broad daylight, if you know where to look. Planets look like stars, but their movement between the stars can be detected if you observe them just for a few nights.

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8y ago

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