20264+5638 STF2687

 
 
20h 26m 23.47s +56 38' 19.3" P.A. 118 sep 26.2 mag 6.37,8.31 Sp B9V dist. 189.04 pc (616.65 l.y.)
 
 
Coord 2000
20264+5638
Discov num
STF2687
Comp
Coord arcsec 2000
20 26 23.47 +56 38 19.3
Date first
1828
Date last
2018
Obs
50
Pa first
118
Pa last
118
P.A. Now (θ)
118°
Sep first
25.0
Sep last
26.2
Sep. Now (ρ)
26.2"
Mag pri
6.37
Mag sec
8.31
delta mag (ΔM)
1.94
Spectral class
B9V (blue-white)
Pri motion ra
+010
Sec motion ra
+015
Pri motion dec
+008
Sec motion dec
+007
Notes
N (See Notes)
rPM=0.308
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
117.5
Precise sep
26.236
Constellation
Cygnus
SAO
32590
HIP
100808
Tycho2
3945-01549-1
Gaia DR2
70048985600
HD
195066
HR
7827
BD
BD+56 2421
Distance
189.04
Distance ly
616.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20264+5638 STF2687 2008 33 117 26.4 6.37 8.31 B9V N D 202623.47+563819.3
20264+5638 STF2687 2010 39 117 26.2 6.37 8.31 B9V N D 202623.47+563819.3
20264+5638 STF2687 2012 41 117 26.2 6.37 8.31 B9V N D 202623.47+563819.3
20264+5638 STF2687 2014 43 117 25.9 6.37 8.31 B9V N D 202623.47+563819.3
20264+5638 STF2687 2017 45 118 26.2 6.37 8.31 B9V N 202623.47+563819.3
20264+5638 STF2687 2018 47 118 26.2 6.37 8.31 B9V N 202623.47+563819.3

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