20158+3937 ES 1974

 
 
20h 15m 47.58s +39 38' 22.3" P.A. 160.00 sep 2.9 mag 10.83,13.50 Sp A0II
 
 
Coord 2000
20158+3937
Discov num
ES 1974
Comp
Coord arcsec 2000
20 15 47.58 +39 38 22.3
Date first
1922
Date last
2015
Obs
3
Pa first
175
Pa last
160
P.A. Now (θ)
160°
Sep first
3.7
Sep last
2.9
Sep. Now (ρ)
2.9"
Mag pri
10.83
Mag sec
13.50
delta mag (ΔM)
2.67
Spectral class
A0II (white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
160
Precise sep
2.927
Constellation
Cygnus
Tycho2
3155-02123-1
Gaia DR2
28782894976
HD
228636
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20158+3937 ES 1974 1922 1 175 3.7 10.83 13.50 A0II 201547.58+393822.3
20158+3937 ES 1974 2014 2 160 3.1 10.83 13.50 A0II 201547.58+393822.3
20158+3937 ES 1974 2015 3 160 2.9 10.83 13.50 A0II 201547.58+393822.3

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