20375+3134 STFA 53AB (48 Cyg)

 
 
20h 37m 31.77s +31 34' 21.1" P.A. 177.00 sep 182.7 mag 6.29,6.54 Sp B8III+F0V dist. 261.78 pc (853.93 l.y.)
 
 
Coord 2000
20375+3134
Discov num
STFA 53
Comp
AB
Coord arcsec 2000
20 37 31.77 +31 34 21.1
Date first
1835
Date last
2012
Obs
35
Pa first
175
Pa last
177
P.A. Now (θ)
177°
Sep first
178.0
Sep last
182.7
Sep. Now (ρ)
182.7"
Mag pri
6.29
Mag sec
6.54
delta mag (ΔM)
0.25
Spectral class
B8III+F0V (blue-white/yellow-white)
Pri motion ra
+009
Sec motion ra
-034
Pri motion dec
-000
Sec motion dec
-031
Notes
N Y (See Notes, Parallax indicates components are non-physical)
rPM=1.152
This double is not physical.
 
 
20375+3134 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 48 Cyg 70287 20375+3134 STFA 53 AB 1835 2012 35 177 182.7 6.29 6.54 0.25 <===
Show 70287 20375+3134 STFA 53 AC 1911 2015 4 0 71.3 6.29 13.52 7.23
Show 70287 20375+3134 FYM 138 AH 1998 2012 3 89 111.0 6.29 14.00 7.71
Show 70289 20375+3134 FYM 138 BD 1998 2015 4 35 41.0 6.54 14.50 7.96
Show 70289 20375+3134 FYM 138 BE 1998 2015 4 29 58.4 6.54 14.40 7.86
Show 70289 20375+3134 FYM 138 BF 1998 2015 4 81 38.8 6.54 15.20 8.66
Show 70289 20375+3134 FYM 138 BG 1998 2015 4 83 62.5 6.54 15.00 8.46
Octuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
177
Precise sep
182.7
Name
48 Cyg
Constellation
Cygnus
SAO
70287
HIP
101765
Tycho2
2686-01751-1
Gaia DR2
59759305216
HD
196606
HR
7885
GC
28713
BD
BD+31 4159
Flamsteed
48 Cygni
Flamsteed name
48 Cyg
Distance
261.78
Distance ly
853.93
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20375+3134 STFA 53 AB 2003 32 177 182.7 6.29 6.54 B8IIIn NYD 203731.77+313421.1
20375+3134 STFA 53 AB 2011 33 185 187.3 6.29 6.54 B8IIIn NYD 203731.77+313421.1
20375+3134 STFA 53 AB 2012 35 177 182.7 6.29 6.54 B8IIIn NYD 203731.77+313421.1

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