B-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 , b-Oph is visible between 22:52 and 02:43. It will become accessible at around 22:52, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 00:47, 23° above your southern horizon. It will become inaccessible at around 02:43 when it sinks below 18° above your south-western horizon.
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|
Name
B-Oph
|
Object type
Star
|
Other names
Position
| Right ascension: | 17h26m22s [4] |
| Declination: | −24°10'32" [4] |
| Constellation: | Ophiuchus |
| Magnitude: Variable | 4.16 (V) [2] 4.50 (BT) [2] 4.19 (VT) [2] 4.10 (G) [4] 4.24 (BP) [4] 3.85 (RP) [4] |
| Distance: | 25.0 parsec 81.4 lightyrs [4] |
| B-V Color (mag): | 0.26 |
| Proper motion (speed): | 117.4 mas/yr[4] |
| Proper motion (pos ang): | 180.9° |
Derived quantities
| Absolute mag (V): | 2.17 |
Visibility from Cambridge
All times shown in Cambridge local time.