20200+3616 BU  431

 
 
20h 19m 57.83s +36 16' 08.0" P.A. 209 sep 0.5 mag 8.62,8.96 Sp A7III
 
 
Coord 2000
20200+3616
Discov num
BU  431
Comp
Coord arcsec 2000
20 19 57.83 +36 16 08.0
Date first
1877
Date last
2011
Obs
37
Pa first
221
Pa last
209
P.A. Now (θ)
209°
Sep first
0.6
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.62
Mag sec
8.96
delta mag (ΔM)
0.34
Spectral class
A7III (white)
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-009
Sec motion dec
-009
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
209.1
Precise sep
0.5
Constellation
Cygnus
SAO
69847
Tycho2
2684-00608-1
HD
193636
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20200+3616 BU 431 2000 32 28 0.5 8.96 8.62 A7III 201957.83+361608.0
20200+3616 BU 431 2006 34 30 0.5 8.96 8.62 A7III 201957.83+361608.0
20200+3616 BU 431 2010 35 28 0.5 8.96 8.62 A7III 201957.83+361608.0
20200+3616 BU 431 2011 37 209 0.5 8.62 8.96 A7III 201957.83+361608.0

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