Rasalhague (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , Rasalhague is visible all night. It will become visible at around 21:26 (EDT), 36° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:56, 60° above your southern horizon. It will be lost to dawn twilight at around 03:59, 40° above your south-western horizon.
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|
Name
Rasalhague
|
Object type
Star
|
Other names
Position
| Right ascension: | 17h34m56s [3] |
| Declination: | +12°33'38" [3] |
| Constellation: | Ophiuchus |
| Magnitude: Variable | 2.09 (V) [3] 2.31 (BT) [2] 2.11 (VT) [2] |
| Distance: | 14.9 parsec 48.6 lightyrs [5] |
| B-V Color (mag): | 0.19 |
| Proper motion (speed): | 246.5 mas/yr[5] |
| Proper motion (pos ang): | 154.0° |
Derived quantities
| Absolute mag (V): | 1.22 |
Visibility from Cambridge
All times shown in Cambridge local time.