20223+5237 ES  989

 
 
20h 22m 18.39s +52 36' 52.7" P.A. 271.00 sep 3.9 mag 10.20,11.70 Sp F2
 
 
Coord 2000
20223+5237
Discov num
ES  989
Comp
Coord arcsec 2000
20 22 18.39 +52 36 52.7
Date first
1910
Date last
2015
Obs
5
Pa first
270
Pa last
271
P.A. Now (θ)
271°
Sep first
4.3
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
10.20
Mag sec
11.70
delta mag (ΔM)
1.5
Spectral class
F2 (yellow-white)
Pri motion ra
+013
Sec motion ra
-168
Pri motion dec
-013
Sec motion dec
-007
Notes
U (Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=1.077
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
271.1
Precise sep
3.9
Constellation
Cygnus
Tycho2
3937-01931-1
Gaia DR2
60737528960
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20223+5237 ES 989 1910 1 270 4.3 10.20 11.70 202218.39+523652.7
20223+5237 ES 989 2011 2 272 4.2 10.20 11.70 U 202218.39+523652.7
20223+5237 ES 989 2015 4 271 3.9 10.20 11.70 F2 U 202218.39+523652.7

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