18122-1400 HDS 2569 AB (HD 166644)
18h 12m 09.00s -14° 00' 28.4" P.A. 151.00 sep 0.2 mag 10.03,10.51 Sp F0 dist. 277.78 pc (906.12 l.y.)
Coord 2000 |
18122-1400 |
|
Discov num |
HDS2569 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 12 09.00 -14 00 28.4 |
|
Date first |
1991 |
|
Date last |
1997 |
|
Obs |
2 |
|
Pa first |
160 |
|
Pa last |
150.6 |
|
P.A. Now (θ) |
150.6° |
|
Sep first |
0.2 |
|
Sep last |
0.156 |
|
Sep. Now (ρ) |
0.156" |
|
Mag pri |
10.03 |
|
Mag sec |
10.51 |
|
delta mag (ΔM) |
0.48 |
|
Spectral class |
F0 (yellow-white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
-009 |
|
Sec motion dec |
|
|
Notes |
W
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 166644 |
|
Constellation |
Serpens |
|
SAO |
161173 |
|
HIP |
89194 |
|
Tycho2 |
5688-00725-1 |
|
HD |
166644 |
|
BD |
BD-14 4928 |
|
Distance |
277.78 |
|
Distance ly |
906.12 |
|