20113+3550 BU  430AB

 
 
20h 11m 19.16s +35 49' 49.0" P.A. 24 sep 1.1 mag 9.69,10.37 Sp B2III-IV
 
 
Coord 2000
20113+3550
Discov num
BU  430
Comp
AB
Coord arcsec 2000
20 11 19.16 +35 49 49.0
Date first
1877
Date last
2001
Obs
18
Pa first
19
Pa last
24
P.A. Now (θ)
24°
Sep first
1.1
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
9.69
Mag sec
10.37
delta mag (ΔM)
0.68
Spectral class
B2III-IV (blue-white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-008
Sec motion dec
-008
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
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
23.7
Precise sep
1.1
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 AB 2001 18 24 1.1 9.69 10.37 B2III-IV 201119.16+354949.0

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