21531+4826 GII  87AC

 
 
21h 53m 02.23s +48 25' 42.4" P.A. 31 sep 6.3 mag 11.70,14.30
 
 
Coord 2000
21531+4826
Discov num
GII  87
Comp
AC
Coord arcsec 2000
21 53 02.23 +48 25 42.4
Date first
1999
Date last
2014
Obs
3
Pa first
30
Pa last
31
P.A. Now (θ)
31°
Sep first
6.2
Sep last
6.3
Sep. Now (ρ)
6.3"
Mag pri
11.70
Mag sec
14.30
delta mag (ΔM)
2.6
Spectral class
Pri motion ra
+002
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21531+4826 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21531+4826 COU2319 AB 1985 1985 1 62 0.7 11.70 14.30 2.60
Show 21531+4826 GII 87 AC 1999 2014 3 31 6.3 11.70 14.30 2.60 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
31.2
Precise sep
6.25
Constellation
Cygnus
last precise pa
31.2
last precise sep
6.25
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21531+4826 GII 87 AC 2014 4 31 6.3 11.70 14.30 215302.23+482542.4

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