19480-2057 HDS 2815 (HD 186938)
19h 47m 59.98s -20° 57' 27.3" P.A. 19.00 sep 0.2 mag 6.99,8.92 Sp K0III+... dist. 292.4 pc (953.81 l.y.)
Coord 2000 |
19480-2057 |
|
Discov num |
HDS2815 |
|
Comp |
|
|
Coord arcsec 2000 |
19 47 59.98 -20 57 27.3 |
|
Date first |
1991 |
|
Date last |
2019 |
|
Obs |
5 |
|
Pa first |
45 |
|
Pa last |
18.7 |
|
P.A. Now (θ) |
18.7° |
|
Sep first |
0.2 |
|
Sep last |
0.173 |
|
Sep. Now (ρ) |
0.173" |
|
Mag pri |
6.99 |
|
Mag sec |
8.92 |
|
delta mag (ΔM) |
1.93 |
|
Spectral class |
K0III+... (yellow-orange) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 186938 |
|
Constellation |
Sagittarius |
|
SAO |
188580 |
|
HIP |
97417 |
|
Tycho2 |
6324-02159-1 |
|
Gaia DR2 |
6865531065479732736 |
|
HD |
186938 |
|
GC |
27385 |
|
BD |
BD-21 5522 |
|
Distance |
292.4 |
|
Distance ly |
953.81 |
|