20563+4447 ES  675BC

 
 
20h 56m 08.85s +44 46' 50.6" P.A. 108 sep 3.7 mag 10.60,12.00
 
 
Coord 2000
20563+4447
Discov num
ES  675
Comp
BC
Coord arcsec 2000
20 56 08.85 +44 46 50.6
Date first
1908
Date last
2003
Obs
5
Pa first
107
Pa last
108
P.A. Now (θ)
108°
Sep first
3.7
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
10.60
Mag sec
12.00
delta mag (ΔM)
1.4
Spectral class
Pri motion ra
-006
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20563+4447 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20563+4447 ES 675 AB 1892 2003 7 272 97.6 9.64 11.70 2.06
Show 20563+4447 ES 675 BC 1908 2003 5 108 3.7 10.60 12.00 1.40 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
107.6
Precise sep
3.727
Constellation
Cygnus
last precise pa
107.6
last precise sep
3.727
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20563+4447 ES 675 BC 2000 3 108 3.7 10.60 12.00 D 205608.85+444650.6
20563+4447 ES 675 BC 2003 5 108 3.7 10.60 12.00 D 205608.85+444650.6

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