20007+3635 WEB   9AC

 
 
20h 00m 44.81s +36 35' 23.0" P.A. 220 sep 82.1 mag 6.69,9.84 Sp B6IV
 
 
Coord 2000
20007+3635
Discov num
WEB   9
Comp
AC
Coord arcsec 2000
20 00 44.81 +36 35 23.0
Date first
1896
Date last
2004
Obs
12
Pa first
221
Pa last
220
P.A. Now (θ)
220°
Sep first
81.2
Sep last
82.1
Sep. Now (ρ)
82.1"
Mag pri
6.69
Mag sec
9.84
delta mag (ΔM)
3.15
Spectral class
B6IV (blue-white)
Pri motion ra
+004
Sec motion ra
+002
Pri motion dec
-001
Sec motion dec
-001
Notes
N (See Notes)
rPM=0.485
Nature of this double is uncertain.
 
 
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 2017 16 279 26.3 8.97 9.84 0.87
Show 20007+3635 WEB 9 CD 1900 2017 7 326 13.9 9.84 10.30 0.46
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.1
Precise sep
82.08
Cdsa2 id
WEB 9 AC
Constellation
Cygnus
Ra deg
20.01244722222222
De deg
36.58972222222222
last precise pa
220.1
last precise sep
82.08
 
 
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 AC 2004 11 220 82.1 6.69 9.84 B6IV D 200044.81+363523.0

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