17574-1804 A 2254 (HD 163535)
17h 57m 21.22s -18° 03' 34.7" P.A. 171.00 sep 0.3 mag 9.90,10.00 Sp B9Ib
Coord 2000 |
17574-1804 |
|
Discov num |
A 2254 |
|
Comp |
|
|
Coord arcsec 2000 |
17 57 21.22 -18 03 34.7 |
|
Date first |
1910 |
|
Date last |
1990 |
|
Obs |
9 |
|
Pa first |
179 |
|
Pa last |
171 |
|
P.A. Now (θ) |
171° |
|
Sep first |
0.3 |
|
Sep last |
0.288 |
|
Sep. Now (ρ) |
0.288" |
|
Mag pri |
9.90 |
|
Mag sec |
10.00 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
B9Ib (blue-white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
+004 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 163535 |
|
Constellation |
Sagittarius |
|
SAO |
160935 |
|
Tycho2 |
6254-01751-1 |
|
HD |
163535 |
|