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 Cambridge , α-Lac will become visible around 17:51 (EST) as the dusk sky fades, 55° above your north-western horizon. It will then sink towards the horizon, becoming tricky to observe after 22:19 when it dips 17° above your north-western horizon.
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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] 3.68 (G) [3] 3.80 (BP) [3] 3.75 (RP) [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 |