15387-2947 RIZ 16 (Tau Lib)
15h 38m 39.38s -29° 46' 39.7" P.A. -1.00 sep 0.0 mag 3.70,6.60 Sp B2.5V dist. 112.49 pc (366.94 l.y.)
| Coord 2000 |
15387-2947 |
|
Discov num |
RIZ 16 |
|
Comp |
|
|
Coord arcsec 2000 |
15 38 39.38 -29 46 39.7 |
|
| Date first |
2010 |
|
Date last |
2010 |
|
Obs |
0 |
|
| Pa first |
-1 |
|
Pa last |
-1 |
|
P.A. Now (θ) |
-1 |
|
| Sep first |
0.0 |
|
Sep last |
0.012 |
|
Sep. Now (ρ) |
0.012" |
|
| Mag pri |
3.70 |
|
Mag sec |
6.60 |
|
delta mag (ΔM) |
2.9 |
|
Spectral class |
B2.5V (blue-white) |
|
| Pri motion ra |
-022 |
|
Sec motion ra |
|
|
| Pri motion dec |
-024 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Tau Lib |
|
Constellation |
Libra |
|
SAO |
183649 |
|
HIP |
76600 |
|
| Tycho2 |
6789-01800-1 |
|
Gaia DR2 |
6209215257546774016 |
|
HD |
139365 |
|
HR |
5812 |
|
| GC |
21019 |
|
CD |
CD-2911837 |
|
CP |
CP-29 4233 |
|
Bayer |
Tau Librae |
|
| Bayer name |
Tau Lib |
|
Flamsteed |
40 Librae |
|
Flamsteed name |
40 Lib |
|
Distance |
112.49 |
|
| Distance ly |
366.94 |
|
Bayer greek |
τ Lib |
|
