21257+3241 GYL 55
21h 25m 42.45s +32° 40' 40.3" P.A. 163.00 sep 5.8 mag 11.40,12.90
| Coord 2000 |
21257+3241 |
|
Discov num |
GYL 55 |
|
Comp |
|
|
Coord arcsec 2000 |
21 25 42.45 +32 40 40.3 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
172 |
|
Pa last |
162.8 |
|
P.A. Now (θ) |
162.8° |
|
| Sep first |
6.5 |
|
Sep last |
5.824 |
|
Sep. Now (ρ) |
5.824" |
|
| Mag pri |
11.40 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
| Pri motion ra |
-015 |
|
Sec motion ra |
-008 |
|
| Pri motion dec |
-010 |
|
Sec motion dec |
+000 |
|
| Notes |
|
|
rPM=0.677
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2707-01654-1 |
|
Gaia DR2 |
1854106359135438080 |
|
