20311+3854 SEI1149

 
 
20h 31m 04.39s +38 54' 31.9" P.A. 203 sep 19.6 mag 11.98,12.50
 
 
Coord 2000
20311+3854
Discov num
SEI1149
Comp
Coord arcsec 2000
20 31 04.39 +38 54 31.9
Date first
1895
Date last
2015
Obs
11
Pa first
202
Pa last
203
P.A. Now (θ)
203°
Sep first
18.9
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
11.98
Mag sec
12.50
delta mag (ΔM)
0.52
Spectral class
Pri motion ra
-001
Sec motion ra
-008
Pri motion dec
-006
Sec motion dec
-009
Notes
rPM=0.632
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
202.9
Precise sep
19.638
Constellation
Cygnus
Tycho2
3153-01196-1
Gaia DR2
13068839680
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20311+3854 SEI1149 1998 5 203 19.6 11.98 12.50 D 203104.39+385431.9
20311+3854 SEI1149 2002 6 203 19.5 11.98 12.50 D 203104.39+385431.9
20311+3854 SEI1149 2015 7 203 19.6 11.98 12.50 203104.39+385431.9

If you need more information about this double, apply for a data request form to the WDS.