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
Cdsa2 id
COU 1163 Aa,Ab
Constellation
Cygnus
Ra deg
19.672658333333334
De deg
31.357333333333333
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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