17280-4545 B 1858 (HD 157847)
17h 28m 00.37s -45° 45' 15.6" P.A. 237.00 sep 2.2 mag 9.63,11.36 Sp B9Ib
| Coord 2000 |
17280-4545 |
|
Discov num |
B 1858 |
|
Comp |
|
|
Coord arcsec 2000 |
17 28 00.37 -45 45 15.6 |
|
| Date first |
1930 |
|
Date last |
1992 |
|
Obs |
3 |
|
| Pa first |
236 |
|
Pa last |
236.5 |
|
P.A. Now (θ) |
236.5° |
|
| Sep first |
2.3 |
|
Sep last |
2.216 |
|
Sep. Now (ρ) |
2.216" |
|
| Mag pri |
9.63 |
|
Mag sec |
11.36 |
|
delta mag (ΔM) |
1.73 |
|
Spectral class |
B9Ib (blue-white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
+002 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 157847 |
|
Constellation |
Ara |
|
SAO |
227992 |
|
Tycho2 |
8342-00052-1 |
|
| Gaia DR2 |
5951979083449323648 |
|
HD |
157847 |
|
DM |
CP-45 8603 |
|
