Alcor (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Alcor is visible in both the dusk and dawn skies. In the evening, it will become visible at around 19:03 (PDT), 18° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 5 hours and 10 minutes after the Sun at 23:13 (PDT). In the morning, it will rise at 00:30 – 6 hours and 35 minutes before the Sun – and reach an altitude of 28° above the north-eastern horizon before fading from view as dawn breaks at around 06:05.
|
Name
Alcor
|
Object type
Star
|
Other names
Position
| Right ascension: | 13h25m13s [2] |
| Declination: | +54°59'16" [2] |
| Constellation: | Ursa Major |
| Magnitude: Variable | 3.99 (V) [2] 4.20 (BT) [2] 4.01 (VT) [2] |
| Distance: | 25.1 parsec 81.7 lightyrs [3] |
| B-V Color (mag): | 0.17 |
| Proper motion (speed): | 121.3 mas/yr[3] |
| Proper motion (pos ang): | 97.6° |
Derived quantities
| Absolute mag (V): | 1.99 |
Sources