18137-1949 TOB 277 (HD 166936)
18h 13m 44.33s -19° 49' 11.5" P.A. 130.00 sep 23.5 mag 9.90,11.40 Sp B6Ib
| Coord 2000 |
18137-1949 |
|
Discov num |
TOB 277 |
|
Comp |
|
|
Coord arcsec 2000 |
18 13 44.33 -19 49 11.5 |
|
| Date first |
1917 |
|
Date last |
2017 |
|
Obs |
9 |
|
| Pa first |
130 |
|
Pa last |
130 |
|
P.A. Now (θ) |
130° |
|
| Sep first |
23.3 |
|
Sep last |
23.49 |
|
Sep. Now (ρ) |
23.49" |
|
| Mag pri |
9.90 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
B6Ib (blue-white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.707
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166936 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6272-02209-1 |
|
Gaia DR2 |
4094636694055988096 |
|
| HD |
166936 |
|
