21392+3241 ES 2320BC

 
 
21h 39m 09.45s +32 41' 54.0" P.A. 323 sep 3.3 mag 10.50,13.00
 
 
Coord 2000
21392+3241
Discov num
ES 2320
Comp
BC
Coord arcsec 2000
21 39 09.45 +32 41 54.0
Date first
1927
Date last
2011
Obs
3
Pa first
323
Pa last
323
P.A. Now (θ)
323°
Sep first
2.8
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
10.50
Mag sec
13.00
delta mag (ΔM)
2.5
Spectral class
Pri motion ra
+012
Sec motion ra
Pri motion dec
-000
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21392+3241 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21392+3241 ES 2320 AB 1893 2011 10 188 12.2 9.91 11.06 1.15
Show 21392+3241 ES 2320 BC 1927 2011 3 323 3.3 10.50 13.00 2.50 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
322.6
Precise sep
3.3
Constellation
Cygnus
last precise pa
322.6
last precise sep
3.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21392+3241 ES 2320 BC 1927 1 323 2.8 10.90 13.40 213909.45+324154.0
21392+3241 ES 2320 BC 2011 2 323 3.2 10.50 13.00 213909.45+324154.0

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