20317+3831 ES  246AB

 
 
20h 31m 41.28s +38 31' 15.2" P.A. 355 sep 5.1 mag 10.92,13.40
 
 
Coord 2000
20317+3831
Discov num
ES  246
Comp
AB
Coord arcsec 2000
20 31 41.28 +38 31 15.2
Date first
1895
Date last
2014
Obs
4
Pa first
12
Pa last
355
P.A. Now (θ)
355°
Sep first
5.4
Sep last
5.1
Sep. Now (ρ)
5.1"
Mag pri
10.92
Mag sec
13.40
delta mag (ΔM)
2.48
Spectral class
Pri motion ra
-001
Sec motion ra
-010
Pri motion dec
-007
Sec motion dec
+010
Notes
N (See Notes)
rPM=1.36
This double is not physical.
 
 
20317+3831 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20317+3831 ES 246 AB 1895 2014 4 355 5.1 10.92 13.40 2.48 <===
Show 20317+3831 ES 246 AC 1895 2015 20 354 9.9 10.92 12.40 1.48
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
355
Precise sep
5.074
Constellation
Cygnus
Tycho2
3153-01233-1
Gaia DR2
38137156352
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20317+3831 ES 246 AB 1923 3 7 6.6 10.92 13.40 203141.28+383115.2
20317+3831 ES 246 AB 2002 4 354 9.9 10.92 13.40 203141.28+383115.2
20317+3831 ES 246 AB 2014 4 355 5.1 10.92 13.40 N 203141.28+383115.2

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