20112+3120 SEI 960

 
 
20h 11m 17.91s +31 15' 33.9" P.A. 223 sep 6.4 mag 13.30,13.60
 
 
Coord 2000
20112+3120
Discov num
SEI 960
Comp
Coord arcsec 2000
20 11 17.91 +31 15 33.9
Date first
1893
Date last
2015
Obs
9
Pa first
221
Pa last
223
P.A. Now (θ)
223°
Sep first
8.8
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
13.30
Mag sec
13.60
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-007
Sec motion ra
-009
Pri motion dec
-017
Sec motion dec
-007
Notes
rPM=0.555
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
222.6
Precise sep
6.404
Constellation
Cygnus
Gaia DR2
98194487936
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20112+3120 SEI 960 1893 1 221 8.8 10.00 11.00 N 201110.77+312021.2
20112+3120 SEI 960 2000 2 221 6.6 10.00 11.00 201117.91+311533.9
20112+3120 SEI 960 2002 3 221 6.6 13.30 13.60 201117.91+311533.9
20112+3120 SEI 960 2015 4 223 6.4 13.30 13.60 201117.91+311533.9

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