χ-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 , χ-Oph is visible in the evening sky, becoming accessible around 21:49 (EDT), 23° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:44, 29° above your southern horizon. It will continue to be observable until around 02:27, when it sinks below 18° above your south-western horizon.
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|
Name
χ-Oph
|
Object type
Star
|
Other names
Position
| Right ascension: | 16h27m01s [6] |
| Declination: | −18°27'22" [6] |
| Constellation: | Ophiuchus |
| Magnitude: Variable | 4.26 (V) [3] 4.51 (BT) [2] 4.28 (VT) [2] 4.20 (G) [6] 4.40 (BP) [6] 3.80 (RP) [6] |
| Distance: | 152.9 parsec 498.5 lightyrs [6] |
| B-V Color (mag): | 0.21 |
| Proper motion (speed): | 22.9 mas/yr[6] |
| Proper motion (pos ang): | 193.6° |
Derived quantities
| Absolute mag (V): | -1.66 |
Visibility from Cambridge
All times shown in Cambridge local time.