20007+3232 ES 2430AB

 
 
20h 00m 43.23s +32 31' 34.7" P.A. 267 sep 6.6 mag 9.74,12.20 Sp B9
 
 
Coord 2000
20007+3232
Discov num
ES 2430
Comp
AB
Coord arcsec 2000
20 00 43.23 +32 31 34.7
Date first
1930
Date last
2002
Obs
3
Pa first
271
Pa last
267
P.A. Now (θ)
267°
Sep first
5.6
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
9.74
Mag sec
12.20
delta mag (ΔM)
2.46
Spectral class
B9 (blue-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20007+3232 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20007+3232 ES 2430 AB 1930 2002 3 267 6.6 9.74 12.20 2.46 <===
Show 20007+3232 ES 2430 AC 1930 2002 4 40 17.0 9.74 12.00 2.26
Show 20007+3232 DAM 313 CD 1998 2002 2 296 3.9 12.00 12.00 0.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
266.8
Precise sep
6.551
Constellation
Cygnus
Tycho2
2674-03573-1
HD
331657
last precise pa
266.8
last precise sep
6.551
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20007+3232 ES 2430 AB 1998 2 267 6.5 9.74 12.20 B9 D 200043.23+323134.7
20007+3232 ES 2430 AB 2002 3 267 6.6 9.74 12.20 B9 D 200043.23+323134.7

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