Alphecca (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Alphecca will become visible at around 21:10 (EDT), 67° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 03:47.
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Name
Alphecca
|
Object type
Star
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Other names
Position
| Right ascension: | 15h34m41s [6] |
| Declination: | +26°42'51" [6] |
| Constellation: | Corona Borealis |
| Magnitude: Variable | 2.22 (V) [3] 2.25 (BT) [2] 2.22 (VT) [2] 2.27 (G) [6] 2.94 (BP) [6] 2.41 (RP) [6] |
| Distance: | 23.7 parsec 77.2 lightyrs [6] |
| B-V Color (mag): | 0.03 |
| Proper motion (speed): | 147.8 mas/yr[6] |
| Proper motion (pos ang): | 126.4° |
Derived quantities
| Absolute mag (V): | 0.35 |
Sources