20478+4750 ES  810

 
 
20h 47m 49.29s +47 49' 54.9" P.A. 40 sep 20.7 mag 5.57,14.60 Sp K4III dist. 179.86 pc (586.7 l.y.)
 
 
Coord 2000
20478+4750
Discov num
ES  810
Comp
Coord arcsec 2000
20 47 49.29 +47 49 54.9
Date first
1909
Date last
2003
Obs
4
Pa first
42
Pa last
40
P.A. Now (θ)
40°
Sep first
18.3
Sep last
20.7
Sep. Now (ρ)
20.7"
Mag pri
5.57
Mag sec
14.60
delta mag (ΔM)
9.03
Spectral class
K4III (yellow-orange)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
40.1
Precise sep
20.685
Constellation
Cygnus
SAO
50073
HIP
102635
Tycho2
3578-03163-1
Gaia DR2
2166775786416401536
HD
198345
HR
7969
BD
BD+47 3188
Distance
179.86
Distance ly
586.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20478+4750 ES 810 1935 2 43 19.0 5.57 14.60 K4III N 204749.29+474954.9
20478+4750 ES 810 2003 4 40 20.7 5.57 14.60 K4III N 204749.29+474954.9
20478+4750 ES 810 2011 3 20 41.5 5.57 14.60 K4III N 204749.29+474954.9

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