21315+4817 A 771 AB (HD 205085)
21h 31m 30.53s +48° 16' 41.6" P.A. 50.00 sep 0.0 mag 8.60,8.80 Sp A1V dist. 480.77 pc (1568.27 l.y.)
| Coord 2000 |
21315+4817 |
|
Discov num |
A 771 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 31 30.53 +48 16 41.6 |
|
| Date first |
1904 |
|
Date last |
1988 |
|
Obs |
13 |
|
| Pa first |
68 |
|
Pa last |
49.7 |
|
P.A. Now (θ) |
49.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.047 |
|
Sep. Now (ρ) |
0.047" |
|
| Mag pri |
8.60 |
|
Mag sec |
8.80 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
-022 |
|
Sec motion ra |
|
|
| Pri motion dec |
-025 |
|
Sec motion dec |
|
|
| Notes |
W
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 205085 |
|
Constellation |
Cygnus |
|
SAO |
50979 |
|
HIP |
106270 |
|
| Tycho2 |
3594-02154-1 |
|
HD |
205085 |
|
BD |
BD+47 3448 |
|
Distance |
480.77 |
|
| Distance ly |
1568.27 |
|
