20117+3706 SEI 980

 
 
20h 11m 41.84s +37 06' 22.2" P.A. 185 sep 23.8 mag 11.87,12.65
 
 
Coord 2000
20117+3706
Discov num
SEI 980
Comp
Coord arcsec 2000
20 11 41.84 +37 06 22.2
Date first
1896
Date last
2015
Obs
10
Pa first
186
Pa last
185
P.A. Now (θ)
185°
Sep first
23.4
Sep last
23.8
Sep. Now (ρ)
23.8"
Mag pri
11.87
Mag sec
12.65
delta mag (ΔM)
0.78
Spectral class
Pri motion ra
-001
Sec motion ra
-005
Pri motion dec
-003
Sec motion dec
-008
Notes
rPM=0.679
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
184.6
Precise sep
23.843
Constellation
Cygnus
Gaia DR2
65771273984
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20117+3706 SEI 980 1998 3 185 23.8 10.50 11.00 D 201141.84+370622.2
20117+3706 SEI 980 2002 4 185 23.8 10.50 11.00 D 201141.84+370622.2
20117+3706 SEI 980 2010 5 184 23.8 11.87 12.65 201141.84+370622.2
20117+3706 SEI 980 2015 6 185 23.9 11.87 12.65 201141.84+370622.2

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