Polaris (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Polaris is very well placed – it is close enough to the north celestial pole that it is high above the horizon all night.
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Name
Polaris
|
Object type
Star
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Other names
Position
| Right ascension: | 02h31m47s [3] |
| Declination: | +89°15'50" [3] |
| Constellation: | Ursa Minor |
| Magnitude: Variable | 2.00 (V) [3] 2.76 (BT) [2] 2.07 (VT) [2] |
| Distance: | 132.6 parsec 432.4 lightyrs [5] |
| B-V Color (mag): | 0.62 |
| Proper motion (speed): | 46.0 mas/yr[5] |
| Proper motion (pos ang): | 104.9° |
Derived quantities
| Absolute mag (V): | -3.61 |
Sources