20259+3727 SEI1121

 
 
20h 25m 52.45s +37 27' 12.9" P.A. 208 sep 28.1 mag 9.57,11.74 Sp A0
 
 
Coord 2000
20259+3727
Discov num
SEI1121
Comp
Coord arcsec 2000
20 25 52.45 +37 27 12.9
Date first
1895
Date last
2015
Obs
11
Pa first
209
Pa last
208
P.A. Now (θ)
208°
Sep first
27.0
Sep last
28.1
Sep. Now (ρ)
28.1"
Mag pri
9.57
Mag sec
11.74
delta mag (ΔM)
2.17
Spectral class
A0 (white)
Pri motion ra
-004
Sec motion ra
-008
Pri motion dec
-008
Sec motion dec
-012
Notes
rPM=0.392
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.5
Precise sep
28.066
Constellation
Cygnus
SAO
70008
Tycho2
2697-00136-1
Gaia DR2
05962657792
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20259+3727 SEI1121 1998 4 207 28.0 9.57 11.70 A0 D 202552.45+372712.9
20259+3727 SEI1121 2002 5 207 28.0 9.57 11.70 A0 D 202552.45+372712.9
20259+3727 SEI1121 2010 6 208 28.0 9.57 11.74 A0 202552.45+372712.9
20259+3727 SEI1121 2015 7 207 28.1 9.57 11.74 A0 202552.45+372712.9

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