21257+4043 COU 2306
21h 25m 44.20s +40° 43' 43.3" P.A. 18.00 sep 0.7 mag 11.17,11.34
| Coord 2000 |
21257+4043 |
|
Discov num |
COU2306 |
|
Comp |
|
|
Coord arcsec 2000 |
21 25 44.20 +40 43 43.3 |
|
| Date first |
1985 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
21 |
|
Pa last |
17.8 |
|
P.A. Now (θ) |
17.8° |
|
| Sep first |
0.6 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.66" |
|
| Mag pri |
11.17 |
|
Mag sec |
11.34 |
|
delta mag (ΔM) |
0.17 |
|
Spectral class |
|
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
+004 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3186-01246-1 |
|
Gaia DR2 |
1965521448629962880 |
|
