18319-2831 RST 2062 (HD 170684)
18h 31m 53.35s -28° 30' 40.3" P.A. 3.00 sep 0.8 mag 8.70,10.30 Sp K1IV
Coord 2000 |
18319-2831 |
|
Discov num |
RST2062 |
|
Comp |
|
|
Coord arcsec 2000 |
18 31 53.35 -28 30 40.3 |
|
Date first |
1931 |
|
Date last |
2017 |
|
Obs |
9 |
|
Pa first |
311 |
|
Pa last |
2.6 |
|
P.A. Now (θ) |
2.6° |
|
Sep first |
0.5 |
|
Sep last |
0.81 |
|
Sep. Now (ρ) |
0.81" |
|
Mag pri |
8.70 |
|
Mag sec |
10.30 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
K1IV (yellow-orange) |
|
Pri motion ra |
+064 |
|
Sec motion ra |
|
|
Pri motion dec |
-033 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 170684 |
|
Constellation |
Sagittarius |
|
SAO |
186922 |
|
Tycho2 |
6869-00257-1 |
|
Gaia DR2 |
4048520835606630272 |
|
HD |
170684 |
|