20106+3452 A   281AB

 
 
20h 10m 36.85s +34 52' 03.9" P.A. 173 sep 4.2 mag 9.01,9.45 Sp F7V dist. 171.53 pc (559.53 l.y.)
 
 
Coord 2000
20106+3452
Discov num
A   281
Comp
AB
Coord arcsec 2000
20 10 36.85 +34 52 03.9
Date first
1901
Date last
2018
Obs
43
Pa first
172
Pa last
173
P.A. Now (θ)
173°
Sep first
3.7
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
9.01
Mag sec
9.45
delta mag (ΔM)
0.44
Spectral class
F7V (yellow-white)
Pri motion ra
+025
Sec motion ra
+027
Pri motion dec
-010
Sec motion dec
-045
Notes
W
rPM=0.668
Nature of this double is uncertain.
 
 
20106+3452 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20106+3452 A 281 AB 1901 2018 43 173 4.2 9.01 9.45 0.44 <===
Show 20106+3452 ARN 96 AC 1896 2015 9 314 63.6 9.01 9.78 0.77
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
172.8
Precise sep
4.198
Constellation
Cygnus
HIP
99411
Tycho2
2679-00394-1
Gaia DR2
72937906048
HD
191833
BD
BD+34 3899
Distance
171.53
Distance ly
559.53
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20106+3452 A 281 AB 2008 37 172 4.1 9.01 9.45 F7V D 201036.85+345203.9
20106+3452 A 281 AB 2011 41 172 4.1 9.01 9.45 F7V D 201036.85+345203.9
20106+3452 A 281 AB 2016 41 172 4.2 9.01 9.45 F7V W 201036.85+345203.9
20106+3452 A 281 AB 2018 43 173 4.2 9.01 9.45 F7V W 201036.85+345203.9

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