20-Oph (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 , 20-Oph is visible in the morning sky, becoming accessible around 01:34, when it reaches an altitude of 19° above your south-eastern horizon. It will then reach its highest point in the sky at 04:58, 36° above your southern horizon. It will be lost to dawn twilight around 05:18, 36° above your southern horizon.
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|
Name
20-Oph
|
Object type
Star
|
Position
| Right ascension: | 16h49m50s [2] |
| Declination: | −10°46'58" [2] |
| Constellation: | Ophiuchus |
| Magnitude: | 4.64 (V) [2] 5.20 (BT) [2] 4.69 (VT) [2] |
| Distance: | 32.0 parsec 104.3 lightyrs [3] |
| B-V Color (mag): | 0.43 |
| Proper motion (speed): | 107.0 mas/yr[3] |
| Proper motion (pos ang): | 137.5° |
Derived quantities
| Absolute mag (V): | 2.12 |
Visibility from Cambridge
All times shown in Cambridge local time.