21434+3817 S   799BD

 
 
21h 43m 36.64s +38 18' 16.4" P.A. 254 sep 33.7 mag 6.98,13.90 Sp A0
 
 
Coord 2000
21434+3817
Discov num
S   799
Comp
BD
Coord arcsec 2000
21 43 36.64 +38 18 16.4
Date first
1905
Date last
2002
Obs
3
Pa first
249
Pa last
254
P.A. Now (θ)
254°
Sep first
30.8
Sep last
33.7
Sep. Now (ρ)
33.7"
Mag pri
6.98
Mag sec
13.90
delta mag (ΔM)
6.92
Spectral class
A0 (white)
Pri motion ra
+025
Sec motion ra
+005
Pri motion dec
-026
Sec motion dec
-030
Notes
N (See Notes)
rPM=0.565
Nature of this double is uncertain.
 
 
21434+3817 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21434+3817 KUI 109 Aa,Ab 1937 2003 4 142 1.8 5.69 11.10 5.41
Show 79 Cyg 71643 21434+3817 S 799 AB 1824 2015 37 60 149.5 5.69 7.00 1.31
Show 21434+3817 S 799 AC 1894 2011 10 318 135.3 5.69 10.24 4.55
Show 21434+3817 S 799 BD 1905 2002 3 254 33.7 6.98 13.90 6.92 <===
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
254.2
Precise sep
33.674
Constellation
Cygnus
last precise pa
254.2
last precise sep
33.674
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21434+3817 S 799 BD 1999 2 254 33.6 6.98 13.90 A0 N D 214336.64+381816.4
21434+3817 S 799 BD 2002 3 254 33.7 6.98 13.90 A0 N D 214336.64+381816.4

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