20188+3507 BU  986AB,C

 
 
20h 18m 45.81s +35 06' 42.8" P.A. 241 sep 4.2 mag 8.57,11.00
 
 
Coord 2000
20188+3507
Discov num
BU  986
Comp
AB,C
Coord arcsec 2000
20 18 45.81 +35 06 42.8
Date first
1880
Date last
1999
Obs
12
Pa first
242
Pa last
241
P.A. Now (θ)
241°
Sep first
4.4
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
8.57
Mag sec
11.00
delta mag (ΔM)
2.43
Spectral class
Pri motion ra
-002
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20188+3507 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20188+3507 A 286 AB 1901 2007 17 43 0.2 9.40 9.40 0.00
Show 20188+3507 BU 986 AB,C 1880 1999 12 241 4.2 8.57 11.00 2.43 <===
Show 20188+3507 FOX 253 AB,D 1896 2002 8 342 46.5 8.57 11.41 2.84
Show 20188+3507 FYM 178 AB,E 1999 2013 3 75 12.7 8.57 13.96 5.39
Show 20188+3507 FYM 178 AB,F 1999 2013 3 289 27.8 8.57 14.02 5.45
Sextuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
240.8
Precise sep
4.23
Constellation
Cygnus
SAO
69809
Tycho2
2680-00908-1
Gaia DR2
23049163136
HD
228849
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20188+3507 BU 986 AB,C 1999 12 241 4.2 8.57 11.00 D 201845.81+350642.8

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