20201+3921 ES 2050AC

 
 
20h 20m 06.87s +39 21' 17.6" P.A. 191 sep 11.2 mag 9.50,13.80
 
 
Coord 2000
20201+3921
Discov num
ES 2050
Comp
AC
Coord arcsec 2000
20 20 06.87 +39 21 17.6
Date first
1933
Date last
2015
Obs
10
Pa first
190
Pa last
191
P.A. Now (θ)
191°
Sep first
11.0
Sep last
11.2
Sep. Now (ρ)
11.2"
Mag pri
9.50
Mag sec
13.80
delta mag (ΔM)
4.3
Spectral class
Pri motion ra
-003
Sec motion ra
-005
Pri motion dec
-006
Sec motion dec
-007
Notes
rPM=0.26 (< 0.3, Physical double)
This double is physical.
 
 
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
191
Precise sep
11.218
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 AC 1998 3 190 11.2 9.62   D 202006.87+392117.6
20201+3921 ES 2050 AC 2008 4 191 11.2 9.62   D 202006.87+392117.6
20201+3921 ES 2050 AC 2015 6 191 11.2 9.50 13.80 202006.87+392117.6

If you need more information about this double, apply for a data request form to the WDS.