19404+3121 COU1163Aa,Ab

 
 
19h 40m 21.57s +31 21' 26.4" P.A. 165 sep 0.1 mag 9.50,9.50 Sp F8V
 
 
Coord 2000
19404+3121
Discov num
COU1163
Comp
Aa,Ab
Coord arcsec 2000
19 40 21.57 +31 21 26.4
Date first
1974
Date last
2007
Obs
6
Pa first
168
Pa last
165
P.A. Now (θ)
165°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
9.50
Mag sec
9.50
delta mag (ΔM)
0
Spectral class
F8V (yellow-white)
Pri motion ra
+008
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19404+3121 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19404+3121 COU1163 Aa,Ab 1974 2007 6 165 0.1 9.50 9.50 0.00 <===
Show 19404+3121 SEI 657 AB 1893 2017 8 357 19.3 8.91 11.01 2.10
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
165.4
Precise sep
0.136
Constellation
Cygnus
last precise pa
165.4
last precise sep
0.136
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19404+3121 COU1163 Aa,Ab 1996 5 177 0.1 9.50 9.50 F8V 194021.57+312126.4
19404+3121 COU1163 Aa,Ab 2007 6 165 0.1 9.50 9.50 F8V 194021.57+312126.4

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