20256+4155 ARG  92AB

 
 
20h 25m 36.16s +41 54' 35.9" P.A. 309.00 sep 41.7 mag 9.71,10.52 Sp A5
 
 
Coord 2000
20256+4155
Discov num
ARG  92
Comp
AB
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
W
Visually invisible, K-band or other infrared star 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
 
 
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 AB 2018 16 309 41.7 9.71 10.52 A5 W 202536.16+415435.9

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