20223+3759 SEI1105

 
 
20h 22m 18.40s +37 58' 41.3" P.A. 188.00 sep 17.6 mag 11.38,11.59 Sp OB:
 
 
Coord 2000
20223+3759
Discov num
SEI1105
Comp
Coord arcsec 2000
20 22 18.40 +37 58 41.3
Date first
1895
Date last
2015
Obs
13
Pa first
189
Pa last
188
P.A. Now (θ)
188°
Sep first
18.2
Sep last
17.6
Sep. Now (ρ)
17.6"
Mag pri
11.38
Mag sec
11.59
delta mag (ΔM)
0.21
Spectral class
OB: (blue)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
188.1
Precise sep
17.585
Constellation
Cygnus
Tycho2
3152-00164-1
Gaia DR2
89517794688
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20223+3759 SEI1105 1998 6 188 17.6 11.38 11.75 D 202218.40+375841.3
20223+3759 SEI1105 2002 7 188 17.6 11.38 11.75 D 202218.40+375841.3
20223+3759 SEI1105 2010 8 188 17.7 11.38 11.59 OB: 202218.40+375841.3
20223+3759 SEI1105 2015 9 188 17.6 11.38 11.59 OB: 202218.40+375841.3

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