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Hipparcos Star Catalog Entry

Identity
Name:sigma Ophiuchi
Hipparcos catalog ID:85355
Other star catalog entries:HD 157999
SAO 122387
BD B+04 3422
 
Appearance
Visual magnitude:4.34 (source: ground based)
Spectral type:K3IIvar
 
Position and motion (Epoch J1991.25) in J2000 reference frame
Right ascension17h 26m 30.87962s (+/-0.00002s)
Declination4° 8' 25.2325" (+/-0.0002")
Parallax:3.62 (+/-0.29) mas
Derived distance:901 light-years
Proper motion in R.A.:0.72 (+/-0.29) mas/year
Proper motion in declination:7.03 (+/-0.19) mas/year
Constellation:Ophiuchus
 

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