20230+3913 SEI1107BC

 
 
20h 22m 54.03s +39 12' 28.7" P.A. 69 sep 19.3 mag 8.63,10.60 Sp B1.5Ib dist. 869.57 pc (2836.54 l.y.)
 
 
Coord 2000
20230+3913
Discov num
SEI1107
Comp
BC
Coord arcsec 2000
20 22 54.03 +39 12 28.7
Date first
1895
Date last
2015
Obs
11
Pa first
70
Pa last
69
P.A. Now (θ)
69°
Sep first
19.0
Sep last
19.3
Sep. Now (ρ)
19.3"
Mag pri
8.63
Mag sec
10.60
delta mag (ΔM)
1.97
Spectral class
B1.5Ib (blue-white)
Pri motion ra
-003
Sec motion ra
-002
Pri motion dec
-005
Sec motion dec
-008
Notes
N (See Notes)
rPM=0.383
Nature of this double is uncertain.
 
 
20230+3913 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20230+3913 STTA206 AB 1876 2017 33 256 43.6 6.72 8.63 1.91
Show 20230+3913 STTA206 AD 1895 2013 8 260 24.8 6.72 11.00 4.28
Show 20230+3913 SEI1107 BC 1895 2015 11 69 19.3 8.63 10.60 1.97 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
68.9
Precise sep
19.304
Constellation
Cygnus
SAO
69927
HIP
100518
Tycho2
3152-00373-1
Gaia DR2
84708040320
HD
229159
BD
BD+38 4051
Distance
869.57
Distance ly
2836.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20230+3913 SEI1107 BC 1998 4 69 19.4 8.63 10.60 B1.5Ib D 202254.03+391228.7
20230+3913 SEI1107 BC 2002 5 69 19.3 8.63 10.60 B1.5Ib N D 202254.03+391228.7
20230+3913 SEI1107 BC 2012 6 69 19.3 8.63 10.60 B1.5Ib N D 202254.03+391228.7
20230+3913 SEI1107 BC 2013 7 70 19.6 8.63 10.60 B1.5Ib N 202254.03+391228.7
20230+3913 SEI1107 BC 2015 8 69 19.3 8.63 10.60 B1.5Ib N 202254.03+391228.7

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