21372+4739 BEM  39BC

 
 
21h 37m 11.38s +47 39' 28.3" P.A. 124 sep 6.5 mag 11.20,12.70
 
 
Coord 2000
21372+4739
Discov num
BEM  39
Comp
BC
Coord arcsec 2000
21 37 11.38 +47 39 28.3
Date first
1898
Date last
2016
Obs
6
Pa first
110
Pa last
124
P.A. Now (θ)
124°
Sep first
7.1
Sep last
6.5
Sep. Now (ρ)
6.5"
Mag pri
11.20
Mag sec
12.70
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
+000
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21372+4739 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21372+4739 BEM 39 AB 1894 2016 8 329 15.7 10.06 11.20 1.14
Show 21372+4739 BEM 39 AD 1898 2016 6 7 25.9 10.06 13.10 3.04
Show 21372+4739 BEM 39 AE 1898 2016 6 124 25.1 10.06 13.16 3.10
Show 21372+4739 BEM 39 BC 1898 2016 6 124 6.5 11.20 12.70 1.50 <===
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.3
Precise sep
6.532
Constellation
Cygnus
last precise pa
124.3
last precise sep
6.532
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21372+4739 BEM 39 BC 1998 3 124 6.6 11.20 11.70 D 213711.38+473928.3
21372+4739 BEM 39 BC 2011 4 125 6.6 11.20 11.70 D 213711.38+473928.3
21372+4739 BEM 39 BC 2016 6 124 6.5 11.20 12.70 213711.38+473928.3

If you need more information about this double, apply for a data request form to the WDS.