20568+4254 ENG  77BC

 
 
20h 56m 43.34s +42 55' 09.9" P.A. 69 sep 100.8 mag 10.16,9.13
 
 
Coord 2000
20568+4254
Discov num
ENG  77
Comp
BC
Coord arcsec 2000
20 56 43.34 +42 55 09.9
Date first
1892
Date last
2002
Obs
12
Pa first
69
Pa last
69
P.A. Now (θ)
69°
Sep first
83.8
Sep last
100.8
Sep. Now (ρ)
100.8"
Mag pri
10.16
Mag sec
9.13
delta mag (ΔM)
1.03
Spectral class
Pri motion ra
-152
Sec motion ra
-006
Pri motion dec
-064
Sec motion dec
-013
Notes
N L (See Notes, Linear solution)
rPM=0.938
This double is not physical.
 
 
20568+4254 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20568+4254 ENG 77 AB 1892 2002 11 328 100.0 7.31 10.16 2.85
Show 20568+4254 ENG 77 AC 1892 2012 18 17 125.8 7.31 9.13 1.82
Show 20568+4254 ENG 77 BC 1892 2002 12 69 100.8 10.16 9.13 1.03 <===
Show 20568+4254 ENG 77 CD 1892 2002 11 356 92.9 9.13 11.06 1.93
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
69.2
Precise sep
100.813
Cdsa2 id
ENG 77 BC
Constellation
Cygnus
Ra deg
20.945372222222222
De deg
42.91941666666666
last precise pa
69.2
last precise sep
100.813
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20568+4254 ENG 77 BC 2002 11 69 99.4 10.16 9.13 LD 205643.34+425509.9

If you need more information about this double, apply for a data request form to the WDS.