18136-3158 B 1353 (HD 166790)
18h 13m 37.34s -31° 58' 02.3" P.A. 114.00 sep 0.1 mag 7.60,7.70 Sp B7II dist. 552.49 pc (1802.22 l.y.)
Coord 2000 |
18136-3158 |
|
Discov num |
B 1353 |
|
Comp |
|
|
Coord arcsec 2000 |
18 13 37.34 -31 58 02.3 |
|
Date first |
1930 |
|
Date last |
2018 |
|
Obs |
8 |
|
Pa first |
143 |
|
Pa last |
114 |
|
P.A. Now (θ) |
114° |
|
Sep first |
0.2 |
|
Sep last |
0.129 |
|
Sep. Now (ρ) |
0.129" |
|
Mag pri |
7.60 |
|
Mag sec |
7.70 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
B7II (blue-white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-010 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 166790 |
|
Constellation |
Sagittarius |
|
SAO |
209873 |
|
HIP |
89330 |
|
Tycho2 |
7396-00136-1 |
|
Gaia DR2 |
4048881479825004928 |
|
HD |
166790 |
|
GC |
24844 |
|
CD |
CD-3115265 |
|
CP |
CP-31 5421 |
|
Distance |
552.49 |
|
Distance ly |
1802.22 |
|