20113+3550 BU  430AC

 
 
20h 11m 19.16s +35 49' 49.0" P.A. 173 sep 7.2 mag 9.69,14.20 Sp B2III-IV
 
 
Coord 2000
20113+3550
Discov num
BU  430
Comp
AC
Coord arcsec 2000
20 11 19.16 +35 49 49.0
Date first
1926
Date last
2015
Obs
5
Pa first
174
Pa last
173
P.A. Now (θ)
173°
Sep first
7.6
Sep last
7.2
Sep. Now (ρ)
7.2"
Mag pri
9.69
Mag sec
14.20
delta mag (ΔM)
4.51
Spectral class
B2III-IV (blue-white)
Pri motion ra
-005
Sec motion ra
+018
Pri motion dec
-008
Sec motion dec
-007
Notes
N (See Notes)
rPM=1.192
This double is not physical.
 
 
20113+3550 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20113+3550 BU 430 AB 1877 2001 18 24 1.1 9.69 10.37 0.68
Show 20113+3550 BU 430 AC 1926 2015 5 173 7.2 9.69 14.20 4.51 <===
Show 20113+3550 HJ 1489 AD 1828 2018 21 52 17.1 9.69 9.88 0.19
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
173.3
Precise sep
7.151
Constellation
Cygnus
Tycho2
2683-03018-1
Gaia DR2
27281717888
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20113+3550 BU 430 AC 2002 3 175 7.6 9.69 14.20 B2III-IV D 201119.16+354949.0
20113+3550 BU 430 AC 2015 5 173 7.2 9.69 14.20 B2III-IV N 201119.16+354949.0

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