Castor (Star)
Color-magnitude diagram
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Ashburn , Castor will become visible at around 21:16 (EDT) as the dusk sky fades, 32° above your western horizon. It will then sink towards the horizon, setting 4 hours and 14 minutes after the Sun at 00:37.
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|
Name
Castor
|
Object Type
Star
|
Position
| Constellation: | Gemini |
| Magnitude: Variable | 1.58 (V)[1] |
| B-V Color (mag): | 0.03 |
| Right Ascension: | 07h34m36s [1] |
| Declination: | +31°53'19" [1] |
| Distance: | 15.8 parsec 51.5 lightyrs [1] |
| Proper motion (speed): | 254.0 mas/yr [1] |
| Proper motion (pos ang): | 234.3° |
Derived Quantities
| Absolute Mag (V): | 0.59 |
Source