21539+4839 COU 2321
21h 53m 54.54s +48° 38' 40.0" P.A. 255.00 sep 0.7 mag 11.10,10.90
| Coord 2000 |
21539+4839 |
|
Discov num |
COU2321 |
|
Comp |
|
|
Coord arcsec 2000 |
21 53 54.54 +48 38 40.0 |
|
| Date first |
1985 |
|
Date last |
2016 |
|
Obs |
6 |
|
| Pa first |
256 |
|
Pa last |
255.3 |
|
P.A. Now (θ) |
255.3° |
|
| Sep first |
0.6 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.66" |
|
| Mag pri |
11.10 |
|
Mag sec |
10.90 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
|
|
| Pri motion ra |
+005 |
|
Sec motion ra |
+005 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3608-01240-1 |
|
Gaia DR2 |
1979368217037421952 |
|
