The star σ-Oph
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 Seattle , σ-Oph is visible all night. It will become visible around 23:01 (PDT), 41° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:43, 46° above your southern horizon. It will be lost to dawn twilight around 03:21, 34° above your south-western horizon.
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|
Name
σ-Oph
|
Object Type
Star
|
Other Names
Position
| Constellation: | Ophiuchus |
| Magnitude: Variable | 4.33 (V) [2] 6.29 (BT) [2] 4.50 (VT) [2] 3.74 (G) [4] 4.66 (BP) [4] 3.01 (RP) [4] |
| B-V Color (mag): | 1.53 |
| Right ascension: | 17h26m30s [4] |
| Declination: | +04°08'25" [4] |
| Distance: | 260.2 parsec 848.3 lightyrs [4] |
| Proper motion (speed): | 7.3 mas/yr [4] |
| Proper motion (pos ang): | 12.5° |
Derived Quantities
| Absolute mag (V): | -2.74 |
Visibility from Seattle
All times shown in Seattle local time.