20201+3921 ES 2050AB

 
 
20h 20m 06.87s +39 21' 17.6" P.A. 92 sep 5.9 mag 9.50,12.50
 
 
Coord 2000
20201+3921
Discov num
ES 2050
Comp
AB
Coord arcsec 2000
20 20 06.87 +39 21 17.6
Date first
1923
Date last
2015
Obs
7
Pa first
93
Pa last
92
P.A. Now (θ)
92°
Sep first
6.0
Sep last
5.9
Sep. Now (ρ)
5.9"
Mag pri
9.50
Mag sec
12.50
delta mag (ΔM)
3
Spectral class
Pri motion ra
-005
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20201+3921 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20201+3921 ES 2050 AB 1923 2015 7 92 5.9 9.50 12.50 3.00 <===
Show 20201+3921 ES 2050 AC 1933 2015 10 191 11.2 9.50 13.80 4.30
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
92.2
Precise sep
5.861
Constellation
Cygnus
SAO
69856
Tycho2
3152-01557-1
Gaia DR2
12692370688
HD
193702
HR
7784
DM
BD+38 4021
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20201+3921 ES 2050 AB 1935 3 97 6.1 9.62 13.10 202006.87+392117.6
20201+3921 ES 2050 AB 2008 4 94 6.4 9.62 13.10 202006.87+392117.6
20201+3921 ES 2050 AB 2015 5 92 5.9 9.50 12.50 202006.87+392117.6

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