Altair (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 Ashburn , Altair will become visible around 17:30 (EST), 47° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:45.
Begin typing the name of a town near to you, and then select the town from the list of options
which appear below.
|
Name
Altair
|
Object Type
Star
|
Position
| Constellation: | Aquila |
| Magnitude: | 0.93 (V) [3] 1.25 (BT) [2] 0.95 (VT) [2] |
| B-V Color (mag): | 0.27 |
| Right ascension: | 19h50m46s [3] |
| Declination: | +08°52'02" [3] |
| Distance: | 5.1 parsec 16.7 lightyrs [5] |
| Proper motion (speed): | 660.3 mas/yr [5] |
| Proper motion (pos ang): | 54.3° |
Derived Quantities
| Absolute mag (V): | 2.38 |
Visibility from Ashburn
All times shown in Ashburn local time.