 |
|
|
Rasalgethi (Alpha Herculis / Alpha 2 Herculis) (Apr 15, 2004)
|
|
| Type: |
Super giant star (Class M 0) /
Giant / main sequence star (Class M5Ib-II) |
| Brightness: |
2.7 mag / 5.39 mag
|
| Visual Distance (Separation): |
4.8''
|
| Distance: |
300 ly
|
| Colour: |
red / blue-green
|
| Luminosity (Sun = 1): |
500 x / -
|
| Mass (Sun = 1): |
-
|
| Temperature: |
3,000 degrees approx. / -
|
| Diameter: |
at least 2 AU / -
|
| Notes: | |
| The distance between both stars equals 14 times the diameter of our solar system. One complete orbital turn of both stars takes 52 days. Rasalgethi component B itself is also a double star. | |