20180+3311 BAR  11AB

 
 
20h 17m 59.91s +33 11' 29.1" P.A. 199 sep 0.5 mag 7.91,9.09 Sp B9 dist. 1351.35 pc (4408.1 l.y.)
 
 
Coord 2000
20180+3311
Discov num
BAR  11
Comp
AB
Coord arcsec 2000
20 17 59.91 +33 11 29.1
Date first
1898
Date last
2018
Obs
23
Pa first
200
Pa last
199
P.A. Now (θ)
199°
Sep first
0.3
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
7.91
Mag sec
9.09
delta mag (ΔM)
1.18
Spectral class
B9 (blue-white)
Pri motion ra
+003
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20180+3311 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20180+3311 BAR 11 AB 1898 2018 23 199 0.5 7.91 9.09 1.18 <===
Show 20180+3311 HO 592 AB,C 1895 2018 14 255 3.1 7.60 11.96 4.36
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
198.6
Precise sep
0.47
Constellation
Cygnus
SAO
69778
HIP
100058
Tycho2
2676-00678-1
Gaia DR2
21483136640
HD
193238
BD
BD+32 3773
Distance
1351.35
Distance ly
4408.1
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20180+3311 BAR 11 AB 2000 22 196 0.4 7.91 9.09 B9 D 201759.91+331129.1

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