18089-3115 B 2855 (HD 165747)
18h 08m 54.29s -31° 14' 53.3" P.A. 243.00 sep 6.7 mag 9.51,12.50 Sp B6Ib/II
| Coord 2000 |
18089-3115 |
|
Discov num |
B 2855 |
|
Comp |
|
|
Coord arcsec 2000 |
18 08 54.29 -31 14 53.3 |
|
| Date first |
1930 |
|
Date last |
1999 |
|
Obs |
4 |
|
| Pa first |
225 |
|
Pa last |
243 |
|
P.A. Now (θ) |
243° |
|
| Sep first |
6.0 |
|
Sep last |
6.745 |
|
Sep. Now (ρ) |
6.745" |
|
| Mag pri |
9.51 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
2.99 |
|
Spectral class |
B6Ib/II (blue-white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-004 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 165747 |
|
Constellation |
Sagittarius |
|
SAO |
209767 |
|
Tycho2 |
7391-00374-1 |
|
| Gaia DR2 |
4049125537018820480 |
|
HD |
165747 |
|
