20007+3635 WEB   9AB

 
 
20h 00m 44.81s +36 35' 23.0" P.A. 202 sep 71.6 mag 6.69,8.97 Sp B6IV dist. 254.45 pc (830.02 l.y.)
 
 
Coord 2000
20007+3635
Discov num
WEB   9
Comp
AB
Coord arcsec 2000
20 00 44.81 +36 35 23.0
Date first
1896
Date last
2016
Obs
22
Pa first
203
Pa last
202
P.A. Now (θ)
202°
Sep first
70.5
Sep last
71.6
Sep. Now (ρ)
71.6"
Mag pri
6.69
Mag sec
8.97
delta mag (ΔM)
2.28
Spectral class
B6IV (blue-white)
Pri motion ra
+004
Sec motion ra
-001
Pri motion dec
-001
Sec motion dec
-005
Notes
N (See Notes)
rPM=1.256
This double is not physical.
 
 
20007+3635 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20007+3635 HDS2851 Aa,Ab 1991 1991 1 332 0.2 6.76 9.75 2.99
Show 20007+3635 WEB 9 AB 1896 2016 22 202 71.6 6.69 8.97 2.28 <===
Show 20007+3635 WEB 9 AC 1896 2004 12 220 82.1 6.69 9.84 3.15
Show 20007+3635 WEB 9 BC 1896 2018 21 279 26.3 8.97 9.84 0.87
Show 20007+3635 WEB 9 CD 1900 2018 13 325 13.9 9.84 10.30 0.46
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
202
Precise sep
71.6
Constellation
Cygnus
SAO
69252
HIP
98510
Tycho2
2682-02072-1
Gaia DR2
75407807744
HD
189864
BD
BD+36 3816
Distance
254.45
Distance ly
830.02
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20007+3635 WEB 9 AB 2004 17 203 71.1 6.69 8.97 B6IV D 200044.81+363523.0
20007+3635 WEB 9 AB 2005 21 202 71.5 6.69 8.97 B6IV 200044.81+363523.0
20007+3635 WEB 9 AB 2016 22 202 71.6 6.69 8.97 B6IV 200044.81+363523.0

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