20343+4520 ES  804AB

 
 
20h 34m 18.83s +45 20' 23.3" P.A. 117.00 sep 30.8 mag 10.56,11.52
 
 
Coord 2000
20343+4520
Discov num
ES  804
Comp
AB
Coord arcsec 2000
20 34 18.83 +45 20 23.3
Date first
1892
Date last
2015
Obs
12
Pa first
117
Pa last
117
P.A. Now (θ)
117°
Sep first
33.5
Sep last
30.8
Sep. Now (ρ)
30.8"
Mag pri
10.56
Mag sec
11.52
delta mag (ΔM)
0.96
Spectral class
Pri motion ra
+016
Sec motion ra
-007
Pri motion dec
-008
Sec motion dec
-003
Notes
rPM=1.316
This double is not physical.
 
 
20343+4520 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20343+4520 ES 804 AB 1892 2015 12 117 30.8 10.56 11.52 0.96 <===
Show 20343+4520 ES 804 BC 1909 2009 4 128 2.2 11.52 12.60 1.08
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
117.2
Precise sep
30.77
Constellation
Cygnus
Tycho2
3573-00570-1
Gaia DR2
91319442560
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20343+4520 ES 804 AB 2003 10 117 31.3 10.56 11.52 D 203418.83+452023.3
20343+4520 ES 804 AB 2015 12 117 30.8 10.56 11.52 203418.83+452023.3

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