16010-1858 HDS 2257 (HD 143437)
16h 00m 59.18s -18° 57' 48.2" P.A. 231.00 sep 0.4 mag 9.83,11.94 Sp F8IV dist. 138.7 pc (452.44 l.y.)
Coord 2000 |
16010-1858 |
|
Discov num |
HDS2257 |
|
Comp |
|
|
Coord arcsec 2000 |
16 00 59.18 -18 57 48.2 |
|
Date first |
1991 |
|
Date last |
2016 |
|
Obs |
4 |
|
Pa first |
209 |
|
Pa last |
230.6 |
|
P.A. Now (θ) |
230.6° |
|
Sep first |
0.2 |
|
Sep last |
0.38 |
|
Sep. Now (ρ) |
0.38" |
|
Mag pri |
9.83 |
|
Mag sec |
11.94 |
|
delta mag (ΔM) |
2.11 |
|
Spectral class |
F8IV (yellow-white) |
|
Pri motion ra |
-032 |
|
Sec motion ra |
|
|
Pri motion dec |
-034 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 143437 |
|
Constellation |
Libra |
|
SAO |
159631 |
|
HIP |
78454 |
|
Tycho2 |
6208-00020-1 |
|
Gaia DR2 |
6247551482802439936 |
|
HD |
143437 |
|
BD |
BD-18 4213 |
|
Distance |
138.7 |
|
Distance ly |
452.44 |
|