21423+4616 ES 1275BD

 
 
21h 42m 17.05s +46 17' 34.3" P.A. 285 sep 6 mag 12.90,13.10
 
 
Coord 2000
21423+4616
Discov num
ES 1275
Comp
BD
Coord arcsec 2000
21 42 17.05 +46 17 34.3
Date first
1913
Date last
2003
Obs
4
Pa first
279
Pa last
285
P.A. Now (θ)
285°
Sep first
5.2
Sep last
6.0
Sep. Now (ρ)
6"
Mag pri
12.90
Mag sec
13.10
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
+004
Sec motion ra
-025
Pri motion dec
-018
Sec motion dec
-015
Notes
rPM=1
This double is not physical.
 
 
21423+4616 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21423+4616 ES 1275 AB 1913 2013 6 1 72.6 8.62 12.90 4.28
Show 21423+4616 ES 1275 BC 1913 2003 4 336 4.1 12.90 13.30 0.40
Show 21423+4616 ES 1275 BD 1913 2003 4 285 6.0 12.90 13.10 0.20 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
284.6
Precise sep
6.01
Constellation
Cygnus
last precise pa
284.6
last precise sep
6.01
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21423+4616 ES 1275 BD 1998 2 285 6.1 12.80 13.00 D 214217.05+461734.3
21423+4616 ES 1275 BD 2003 4 285 6.0 12.90 13.10 D 214217.05+461734.3

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