20136+3640 SEI1023

 
 
20h 13m 34.39s +36 40' 29.3" P.A. 344 sep 28.6 mag 9.18,10.53 Sp A7III
 
 
Coord 2000
20136+3640
Discov num
SEI1023
Comp
Coord arcsec 2000
20 13 34.39 +36 40 29.3
Date first
1896
Date last
2015
Obs
17
Pa first
341
Pa last
344
P.A. Now (θ)
344°
Sep first
24.9
Sep last
28.6
Sep. Now (ρ)
28.6"
Mag pri
9.18
Mag sec
10.53
delta mag (ΔM)
1.35
Spectral class
A7III (white)
Pri motion ra
-006
Sec motion ra
+002
Pri motion dec
-033
Sec motion dec
-003
Notes
rPM=0.926
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
343.6
Precise sep
28.581
Constellation
Cygnus
SAO
69641
Tycho2
2683-03267-1
Gaia DR2
68969983104
HD
228403
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20136+3640 SEI1023 2004 11 343 28.6 9.18 10.53 A7III D 201334.39+364029.3
20136+3640 SEI1023 2010 13 344 28.5 9.18 10.53 A7III 201334.39+364029.3
20136+3640 SEI1023 2015 14 344 28.6 9.18 10.53 A7III 201334.39+364029.3

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