20390+3804 SEI1204

 
 
20h 39m 08.89s +38 05' 13.0" P.A. 291.00 sep 7.8 mag 10.90,12.50
 
 
Coord 2000
20390+3804
Discov num
SEI1204
Comp
Coord arcsec 2000
20 39 08.89 +38 05 13.0
Date first
1895
Date last
2015
Obs
5
Pa first
39
Pa last
291
P.A. Now (θ)
291°
Sep first
9.2
Sep last
7.8
Sep. Now (ρ)
7.8"
Mag pri
10.90
Mag sec
12.50
delta mag (ΔM)
1.6
Spectral class
Pri motion ra
-014
Sec motion ra
+045
Pri motion dec
+004
Sec motion dec
+030
Notes
R (Red magnitudes)
Visually invisible, K-band or other infrared star rPM=1.192
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
291.4
Precise sep
7.8
Constellation
Cygnus
Gaia DR2
51646636544
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20390+3804 SEI1204 1895 1 40 9.1 11.00 11.00 N 203856.46+380352.0
20390+3804 SEI1204 2009 2 295 7.8 11.00 11.00 N 203856.46+380352.0
20390+3804 SEI1204 2015 5 291 7.8 10.90 12.50 R 203908.89+380513.0

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