Altair (Star)
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 , Altair is visible all night. It will become visible around 21:17 (EDT) as the dusk sky fades, 27° above your eastern horizon. It will be lost to dawn twilight around 05:14, 31° above your western horizon.
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|
Name
Altair
|
Object Type
Star
|
Position
| Constellation: | Aquila |
| Magnitude: | 0.93 (V)[2] 1.25 (BT)[1] 0.95 (VT)[1] |
| B-V Color (mag): | 0.27 |
| Right Ascension: | 19h50m46s [2] |
| Declination: | +08°52'02" [2] |
| Distance: | 5.1 parsec 16.7 lightyrs [3] |
| Proper motion (speed): | 660.3 mas/yr [3] |
| Proper motion (pos ang): | 54.3° |
Derived Quantities
| Absolute Mag (V): | 2.38 |