| Identity |
| Name: | tau Librae |
| Hipparcos catalog ID: | 76600 |
| Other catalog entries: | HD 139365
SAO 183649
CoD C-29 11837
CPD P-29 4233
|
| |
| Appearance |
| Visual magnitude: | 3.66 (source: Hipparcos) |
| Spectral type: | B2.5V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| R.A. | 15h 38m 39.38437s (+/-0.00006s) |
| Decl. | -29° 46' 39.6817" (+/-0.0006") |
| Parallax: | 7.33 (+/-1.01) |
| Derived distance: | 445 light years |
| Proper motion in R.A.: | -22.1 (+/-0.88) mas/year |
| Proper motion in decl.: | -26.54 (+/-0.81) mas/year |
| Constellation: | Libra | |