| Identity |
| Name: | zeta Ophiuchi |
| Hipparcos catalog ID: | 81377 |
| Other star catalog entries: | HD 149757
SAO 160006
BD B-10 4350
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| Appearance |
| Visual magnitude: | 2.54 (source: Hipparcos) |
| Spectral type: | O9.5V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 16h 37m 9.53000s (+/-0.00001s) |
| Declination | -10° 34' 1.7464" (+/-0.0002") |
| Parallax: | 8.91 (+/-0.2) mas |
| Derived distance: | 366 light-years |
| Proper motion in R.A.: | 15.26 (+/-0.26) mas/year |
| Proper motion in declination: | 24.79 (+/-0.22) mas/year |
| Constellation: | Ophiuchus | |