20293+3731 WEI  35CD

 
 
20h 29m 20.78s +37 30' 30.9" P.A. 201 sep 12.1 mag 9.40,10.55 Sp B8
 
 
Coord 2000
20293+3731
Discov num
WEI  35
Comp
CD
Coord arcsec 2000
20 29 20.78 +37 30 30.9
Date first
1879
Date last
2015
Obs
21
Pa first
201
Pa last
201
P.A. Now (θ)
201°
Sep first
11.9
Sep last
12.1
Sep. Now (ρ)
12.1"
Mag pri
9.40
Mag sec
10.55
delta mag (ΔM)
1.15
Spectral class
B8 (blue-white)
Pri motion ra
+001
Sec motion ra
+002
Pri motion dec
-005
Sec motion dec
-005
Notes
N (See Notes)
rPM=0.186 (< 0.3, Physical double)
This double is physical.
 
 
20293+3731 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20293+3731 WEI 35 AB 1879 2016 44 214 4.1 8.35 8.81 0.46
Show 20293+3731 WEI 35 AC 1883 2015 22 100 87.6 8.35 9.40 1.05
Show 20293+3731 WEI 35 BC 1883 2015 20 98 89.3 8.81 9.40 0.59
Show 20293+3731 WEI 35 CD 1879 2015 21 201 12.1 9.40 10.55 1.15 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
201.3
Precise sep
12.05
Constellation
Cygnus
SAO
70097
Tycho2
3152-00768-1
Gaia DR2
42457588992
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20293+3731 WEI 35 CD 1998 17 201 12.1 9.40 10.40 B8 D 202920.78+373030.9
20293+3731 WEI 35 CD 2009 18 201 12.1 9.40 10.40 B8 D 202920.78+373030.9
20293+3731 WEI 35 CD 2012 20 202 12.1 9.40 10.40 B8 D 202920.78+373030.9
20293+3731 WEI 35 CD 2015 21 201 12.1 9.40 10.55 B8 N 202920.78+373030.9

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