Alderamin (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , Alderamin is visible all night because it is circumpolar. It will be highest in the sky shortly before dawn, when it will be lost to twilight at around 04:17, 61° above your north-eastern horizon. At dusk, it will become visible at around 21:01 (EDT), 19° above your northern horizon.
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|
Name
Alderamin
|
Object type
Star
|
Other names
Position
| Right ascension: | 21h18m34s [3] |
| Declination: | +62°35'07" [3] |
| Constellation: | Cepheus |
| Magnitude: Variable | 2.47 (V) [3] 2.76 (BT) [2] 2.49 (VT) [2] |
| Distance: | 15.0 parsec 49.0 lightyrs [5] |
| B-V Color (mag): | 0.25 |
| Proper motion (speed): | 158.4 mas/yr[5] |
| Proper motion (pos ang): | 71.9° |
Derived quantities
| Absolute mag (V): | 1.58 |
Visibility from Cambridge
All times shown in Cambridge local time.