20204+3840 SEI1089AC

 
 
20h 20m 18.47s +38 39' 29.5" P.A. 17 sep 28.2 mag 10.30,10.47
 
 
Coord 2000
20204+3840
Discov num
SEI1089
Comp
AC
Coord arcsec 2000
20 20 18.47 +38 39 29.5
Date first
1895
Date last
2015
Obs
11
Pa first
20
Pa last
17
P.A. Now (θ)
17°
Sep first
27.6
Sep last
28.2
Sep. Now (ρ)
28.2"
Mag pri
10.30
Mag sec
10.47
delta mag (ΔM)
0.17
Spectral class
Pri motion ra
+036
Sec motion ra
-007
Pri motion dec
+019
Sec motion dec
+003
Notes
rPM=1.127
This double is not physical.
 
 
20204+3840 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20204+3840 SEI1088 AB 1896 2015 8 238 4.3 10.30 11.60 1.30
Show 20204+3840 SEI1089 AC 1895 2015 11 17 28.2 10.30 10.47 0.17 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
16.9
Precise sep
28.23
Constellation
Cygnus
Tycho2
3152-01641-1
Gaia DR2
80623328384
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20204+3840 SEI1089 AC 2005 8 197 28.1 10.56 10.64 D 202019.18+383956.4
20204+3840 SEI1089 AC 2013 9 17 28.2 10.64 10.56 202019.18+383956.4
20204+3840 SEI1089 AC 2015 11 17 28.2 10.30 10.47 202018.47+383929.5

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