20231+3342 COU1949

 
 
20h 23m 05.49s +33 42' 57.6" P.A. 83 sep 0.2 mag 10.90,10.90 Sp B9
 
 
Coord 2000
20231+3342
Discov num
COU1949
Comp
Coord arcsec 2000
20 23 05.49 +33 42 57.6
Date first
1981
Date last
2008
Obs
5
Pa first
57
Pa last
83
P.A. Now (θ)
83°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
10.90
Mag sec
10.90
delta mag (ΔM)
0
Spectral class
B9 (blue-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
83.2
Precise sep
0.175
Constellation
Cygnus
Tycho2
2676-00041-1
Gaia DR2
59571396992
HD
229166
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20231+3342 COU1949 2005 3 77 0.2 10.90 10.90 202305.49+334257.6
20231+3342 COU1949 2008 5 83 0.2 10.90 10.90 202305.49+334257.6

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