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
Cdsa2 id
ES 1275 BD
Constellation
Cygnus
Ra deg
21.70473611111111
De deg
46.29286111111111
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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