φ-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 , φ-Oph is visible in the morning sky, becoming accessible around 01:44, when it reaches an altitude of 18° above your south-eastern horizon. It will then reach its highest point in the sky at 04:39, 31° above your southern horizon. It will be lost to dawn twilight around 05:18, 30° above your southern horizon.
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|
Name
φ-Oph
|
Object type
Star
|
Other names
Position
| Right ascension: | 16h31m08s [4] |
| Declination: | −16°36'46" [4] |
| Constellation: | Ophiuchus |
| Magnitude: | 4.28 (V) [2] 5.44 (BT) [2] 4.38 (VT) [2] 4.05 (G) [4] 4.51 (BP) [4] 3.43 (RP) [4] |
| Distance: | 73.4 parsec 239.3 lightyrs [4] |
| B-V Color (mag): | 0.90 |
| Proper motion (speed): | 59.4 mas/yr[4] |
| Proper motion (pos ang): | 230.9° |
Derived quantities
| Absolute mag (V): | -0.05 |
Visibility from Cambridge
All times shown in Cambridge local time.