Alfirk (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Alfirk 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 04:23, 53° above your north-eastern horizon. At dusk, it will become visible at around 20:57 (EDT), 24° above your northern horizon.
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Name
Alfirk
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Object type
Star
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Other names
Position
| Right ascension: | 21h28m39s [6] |
| Declination: | +70°33'38" [6] |
| Constellation: | Cepheus |
| Magnitude: Variable | 3.23 (V) [3] 2.96 (BT) [2] 3.19 (VT) [2] 3.19 (G) [6] 3.16 (BP) [6] 3.38 (RP) [6] |
| Distance: | 210.1 parsec 684.9 lightyrs [5] |
| B-V Color (mag): | -0.21 |
| Proper motion (speed): | 15.1 mas/yr[5] |
| Proper motion (pos ang): | 56.2° |
Derived quantities
| Absolute mag (V): | -3.38 |
Sources