χ-Oph (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , χ-Oph will become visible at around 21:41 (EDT), 29° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:18.
|
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 |
Sources