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Antares (Alpha Scorpii A / Alpha Scorpii B) (May 20, 2003)
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| Type: |
Super giant star (Class M1.5Iab-Ib) /
Main sequence star (Class B4Ve) |
| Brightness: |
1.1 mag
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| Distance: |
600 ly
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| Colour: |
orange-red / blue
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| Luminosity (Sun = 1): |
12,000 x / 1,900 x
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| Mass (Sun = 1): |
15.5 x / 7 x
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| Temperature: |
3,000 degrees / 18,000 degrees approx.
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| Diameter: |
1,400 solar radii / 8 solar radii
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| Notes: | |
| Antares is surrounded by a red reflection nebula. It has a blue companion three times larger than the Sun. The distance between both stars is about 14 times the diameter of our solar system. | |