20021+5439 ENG  68CE

 
 
20h 02m 22.85s +54 40' 07.5" P.A. 158 sep 160 mag 8.39,8.92 Sp F2III+K5
 
 
Coord 2000
20021+5439
Discov num
ENG  68
Comp
CE
Coord arcsec 2000
20 02 22.85 +54 40 07.5
Date first
1884
Date last
2009
Obs
12
Pa first
159
Pa last
158
P.A. Now (θ)
158°
Sep first
160.9
Sep last
160.0
Sep. Now (ρ)
160"
Mag pri
8.39
Mag sec
8.92
delta mag (ΔM)
0.53
Spectral class
F2III+K5 (yellow-white/yellow-orange)
Pri motion ra
+001
Sec motion ra
+013
Pri motion dec
-006
Sec motion dec
+018
Notes
N (See Notes)
rPM=1.208
This double is not physical.
 
 
20021+5439 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20021+5439 BU 426 AB 1877 2016 18 307 5.9 8.53 10.50 1.97
Show 20021+5439 BU 426 AC 1877 2009 16 53 162.9 8.53 8.39 0.14
Show 20021+5439 BU 427 CD 1877 2011 15 336 3.1 8.39 10.18 1.79
Show 20021+5439 ENG 68 CE 1884 2009 12 158 160.0 8.39 8.92 0.53 <===
Show 20021+5439 MLR 580 EF 1981 2008 3 159 0.6 8.90 13.20 4.30
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
157.6
Precise sep
159.98
Constellation
Cygnus
last precise pa
157.6
last precise sep
159.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20021+5439 ENG 68 CE 1999 10 158 160.8 8.39 8.92 F2III D 200222.85+544007.5
20021+5439 ENG 68 CE 2009 11 158 160.0 8.39 8.92 F2III D 200222.85+544007.5

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