21151+4227 COU 2228
21h 15m 08.30s +42° 27' 03.2" P.A. 28.00 sep 0.5 mag 11.00,12.60
Coord 2000 |
21151+4227 |
|
Discov num |
COU2228 |
|
Comp |
|
|
Coord arcsec 2000 |
21 15 08.30 +42 27 03.2 |
|
Date first |
1984 |
|
Date last |
2014 |
|
Obs |
4 |
|
Pa first |
29 |
|
Pa last |
27.8 |
|
P.A. Now (θ) |
27.8° |
|
Sep first |
0.5 |
|
Sep last |
0.458 |
|
Sep. Now (ρ) |
0.458" |
|
Mag pri |
11.00 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
|
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-004 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3177-02547-1 |
|
Gaia DR2 |
1969134585578890880 |
|