Alphecca (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 , Alphecca is visible all night. It will become visible at around 20:59 (EDT), 41° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:50, 74° above your southern horizon. It will be lost to dawn twilight at around 04:19, 44° above your western horizon.
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|
Name
Alphecca
|
Object type
Star
|
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 |
Visibility from Cambridge
All times shown in Cambridge local time.