θ-Oph (Star)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.

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From Cambridge , θ-Oph is visible in the morning sky, becoming accessible around 01:12, when it reaches an altitude of 16° above your south-eastern horizon. It will then reach its highest point in the sky at 03:19, 22° above your southern horizon. It will be lost to dawn twilight around 04:21, 21° above your southern horizon.

Name θ-Oph
Object type Star
Other names
θ-Oph
Theta Ophiuchi
42-Oph
42 Ophiuchi
HR 6453[1]
HD 157056
HIP 84970[5]
TYC 6829-577-1[4]
Gaia EDR3- 4110730486352950144[6]
Position
Right ascension:17h22m00s [6]
Declination:-24°59'58" [6]
Constellation:Ophiuchus
Magnitude:
Variable
3.26 (V) [3]
3.02 (BT) [2]
3.23 (VT) [2]
3.26 (G) [6]
3.29 (BP) [6]
3.40 (RP) [6]
Distance:133.7 parsec
435.8 lightyrs [5]
B-V Color (mag):-0.19
Proper motion (speed):25.0 mas/yr[5]
Proper motion (pos ang):197.1°
Derived quantities
Absolute mag (V):-2.37

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