| Identity |
| Name: | tau Librae |
| Hipparcos catalog ID: | 76600 |
| Other star catalog entries: | HD 139365
SAO 183649
CoD C-29 11837
CPD P-29 4233
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| |
| Appearance |
| Visual magnitude: | 3.66 (source: Hipparcos) |
| Spectral type: | B2.5V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 15h 38m 39.38434s (+/-0.00001s) |
| Declination | -29° 46' 39.6816" (+/-0.0001") |
| Parallax: | 8.89 (+/-0.2) mas |
| Derived distance: | 367 light-years |
| Proper motion in R.A.: | -22.08 (+/-0.22) mas/year |
| Proper motion in declination: | -24.46 (+/-0.22) mas/year |
| Constellation: | Libra | |