20421+4125 COU 2420
20h 42m 04.34s +41° 24' 46.5" P.A. 90.00 sep 0.5 mag 9.85,10.26 Sp A0
Coord 2000 |
20421+4125 |
|
Discov num |
COU2420 |
|
Comp |
|
|
Coord arcsec 2000 |
20 42 04.34 +41 24 46.5 |
|
Date first |
1987 |
|
Date last |
2016 |
|
Obs |
7 |
|
Pa first |
86 |
|
Pa last |
89.6 |
|
P.A. Now (θ) |
89.6° |
|
Sep first |
0.4 |
|
Sep last |
0.509 |
|
Sep. Now (ρ) |
0.509" |
|
Mag pri |
9.85 |
|
Mag sec |
10.26 |
|
delta mag (ΔM) |
0.41 |
|
Spectral class |
A0 (white) |
|
Pri motion ra |
+007 |
|
Sec motion ra |
+007 |
|
Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3174-00584-1 |
|
Gaia DR2 |
2066155521672514432 |
|