18199-2222 DON 891 (HD 168308)
18h 19m 55.65s -22° 22' 00.7" P.A. 78.00 sep 4.8 mag 9.75,11.00 Sp B9II
| Coord 2000 |
18199-2222 |
|
Discov num |
DON 891 |
|
Comp |
|
|
Coord arcsec 2000 |
18 19 55.65 -22 22 00.7 |
|
| Date first |
1928 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
82 |
|
Pa last |
77.9 |
|
P.A. Now (θ) |
77.9° |
|
| Sep first |
4.5 |
|
Sep last |
4.795 |
|
Sep. Now (ρ) |
4.795" |
|
| Mag pri |
9.75 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
1.25 |
|
Spectral class |
B9II (blue-white) |
|
| Pri motion ra |
-017 |
|
Sec motion ra |
+095 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=1.18
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 168308 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6277-00032-1 |
|
Gaia DR2 |
4090549427065849856 |
|
| HD |
168308 |
|
