20281+3353 COU1956

 
 
20h 28m 03.89s +33 53' 16.6" P.A. 239 sep 0.4 mag 7.10,9.49 Sp B9 dist. 469.48 pc (1531.44 l.y.)
 
 
Coord 2000
20281+3353
Discov num
COU1956
Comp
Coord arcsec 2000
20 28 03.89 +33 53 16.6
Date first
1980
Date last
2008
Obs
11
Pa first
237
Pa last
239
P.A. Now (θ)
239°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
7.10
Mag sec
9.49
delta mag (ΔM)
2.39
Spectral class
B9 (blue-white)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
-001
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
239.1
Precise sep
0.402
Constellation
Cygnus
SAO
70063
HIP
100949
Tycho2
2693-00747-1
Gaia DR2
45549985280
HD
195102
BD
BD+33 3914
Distance
469.48
Distance ly
1531.44
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20281+3353 COU1956 1995 10 237 0.4 7.10 9.49 B9 D 202803.89+335316.6
20281+3353 COU1956 2008 11 239 0.4 7.10 9.49 B9 D 202803.89+335316.6

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