20461+4452 ES 30 (RR Cyg)
20h 46m 04.55s +44° 52' 09.6" P.A. 57.00 sep 17.1 mag 9.62,12.50 Sp F8Ib
| Coord 2000 |
20461+4452 |
|
Discov num |
ES 30 |
|
Comp |
|
|
Coord arcsec 2000 |
20 46 04.55 +44 52 09.6 |
|
| Date first |
1899 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
58 |
|
Pa last |
57 |
|
P.A. Now (θ) |
57° |
|
| Sep first |
18.1 |
|
Sep last |
17.138 |
|
Sep. Now (ρ) |
17.138" |
|
| Mag pri |
9.62 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
2.88 |
|
Spectral class |
F8Ib (yellow-white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-005 |
|
| Notes |
N
(See Notes) |
|
rPM=0.67
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
RR Cyg |
|
Constellation |
Cygnus |
|
Tycho2 |
3178-00345-1 |
|
Gaia DR2 |
2070149433243897728 |
|
