30-Oph (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , 30-Oph is visible in the morning sky, becoming accessible around 23:09, when it reaches an altitude of 19° above your south-eastern horizon. It will then reach its highest point in the sky at 03:02, 43° above your southern horizon. It will be lost to dawn twilight around 04:20, 40° above your south-western horizon.
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Name
30-Oph
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Object type
Star
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Other names
Position
| Right ascension: | 17h01m03s [4] |
| Declination: | -04°13'22" [4] |
| Constellation: | Ophiuchus |
| Magnitude: Variable | 4.83 (V) [2] 6.77 (BT) [2] 4.99 (VT) [2] 4.27 (G) [4] 5.07 (BP) [4] 3.39 (RP) [4] |
| Distance: | 112.0 parsec 365.2 lightyrs [4] |
| B-V Color (mag): | 1.52 |
| Proper motion (speed): | 88.2 mas/yr[4] |
| Proper motion (pos ang): | 207.2° |
Derived quantities
| Absolute mag (V): | -0.42 |
Sources