The star α-Lac
Color-magnitude diagram
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Ashburn , α-Lac is visible in both the dusk and dawn skies. In the evening, it will become visible at around 18:52 (EST) as the dusk sky fades, 29° above your north-western horizon. It will then sink towards the horizon, setting 6 hours and 48 minutes after the Sun at 00:35 (EST). In the morning, it will rise at 01:11 – 5 hours and 49 minutes before the Sun – and reach an altitude of 20° above the north-eastern horizon before fading from view as dawn breaks at around 05:55.
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|
Name
α-Lac
|
Object Type
Star
|
Position
| Constellation: | Lacerta |
| Magnitude: | 3.78 (V)[2] 3.81 (BT)[1] 3.78 (VT)[1] 3.75 (RP)[3] 3.68 (G)[3] 3.80 (BP)[3] |
| B-V Color (mag): | 0.03 |
| Right Ascension: | 22h31m17s [3] |
| Declination: | +50°16'57" [3] |
| Distance: | 30.8 parsec 100.5 lightyrs [3] |
| Proper motion (speed): | 139.8 mas/yr [3] |
| Proper motion (pos ang): | 82.9° |
Derived Quantities
| Absolute Mag (V): | 1.34 |