Alphecca (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
Click and drag the chart above to pan around the sky, or use the mouse wheel to zoom.
Click to enlarge.
From Columbus , Alphecca is visible in both the dusk and dawn skies. In the evening, it will become visible at around 18:04 (EST), 16° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 35 minutes after the Sun at 19:45 (EST). In the morning, it will rise at 04:18 – 3 hours and 3 minutes before the Sun – and reach an altitude of 21° above the eastern horizon before fading from view as dawn breaks at around 06:27.
Begin typing the name of a town near to you, and then select the town from the list of options
which appear below.
|
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 Columbus
All times shown in Columbus local time.