20007+3635 HDS2851Aa,Ab

 
 
20h 00m 44.81s +36 35' 23.0" P.A. 332 sep 0.2 mag 6.76,9.75 Sp B6IV
 
 
Coord 2000
20007+3635
Discov num
HDS2851
Comp
Aa,Ab
Coord arcsec 2000
20 00 44.81 +36 35 23.0
Date first
1991
Date last
1991
Obs
1
Pa first
332
Pa last
332
P.A. Now (θ)
332°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
6.76
Mag sec
9.75
delta mag (ΔM)
2.99
Spectral class
B6IV (blue-white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N (See Notes)
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
332
Precise sep
0.245
Cdsa2 id
HDS 2851 Aa,Ab
Constellation
Cygnus
Ra deg
20.01244722222222
De deg
36.58972222222222
last precise pa
332
last precise sep
0.245
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20007+3635 HDS2851 Aa,Ab 1991 1 332 0.2 6.76 9.75 B6IV 200044.81+363523.0
20007+3635 HDS2851 Aa,Ab 2003 2 290 0.4 6.76 9.75 B6IV 200044.81+363523.0

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