| Identity |
| Name: | tau Scorpii |
| Hipparcos catalog ID: | 81266 |
| Other star catalog entries: | HD 149438
SAO 184481
CoD C-27 11015
CPD P-27 5427
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| |
| Appearance |
| Visual magnitude: | 2.82 (source: ground based) |
| Spectral type: | B0V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 16h 35m 52.95940s (+/-0.00004s) |
| Declination | -28° 12' 57.4618" (+/-0.0004") |
| Parallax: | 6.88 (+/-0.53) mas |
| Derived distance: | 474 light-years |
| Proper motion in R.A.: | -9.89 (+/-0.61) mas/year |
| Proper motion in declination: | -22.83 (+/-0.55) mas/year |
| Constellation: | Scorpius | |