20256+4155 ARG  92

 
 
20h 25m 36.16s +41 54' 35.9" P.A. 309 sep 41.7 mag 9.71,10.52 Sp A5
 
 
Coord 2000
20256+4155
Discov num
ARG  92
Comp
Coord arcsec 2000
20 25 36.16 +41 54 35.9
Date first
1892
Date last
2018
Obs
16
Pa first
312
Pa last
309
P.A. Now (θ)
309°
Sep first
41.0
Sep last
41.7
Sep. Now (ρ)
41.7"
Mag pri
9.71
Mag sec
10.52
delta mag (ΔM)
0.81
Spectral class
A5 (white)
Pri motion ra
+016
Sec motion ra
+002
Pri motion dec
+013
Sec motion dec
+005
Notes
rPM=0.782
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
308.6
Precise sep
41.728
Constellation
Cygnus
SAO
49604
Tycho2
3160-01538-1
Gaia DR2
02886612736
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20256+4155 ARG 92 2005 8 310 41.5 9.71 10.52 A5 D 202536.16+415435.9
20256+4155 ARG 92 2010 10 309 41.6 9.71 10.52 A5 202536.16+415435.9
20256+4155 ARG 92 2015 11 309 41.6 9.71 10.52 A5 202536.16+415435.9
20256+4155 ARG 92 2018 12 309 41.7 9.71 10.52 A5 202536.16+415435.9

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