20311+1648 J   563BC

 
 
20h 31m 02.69s +16 48' 40.4" P.A. 215 sep 5.1 mag 12.60,13.20
 
 
Coord 2000
20311+1648
Discov num
J   563
Comp
BC
Coord arcsec 2000
20 31 02.69 +16 48 40.4
Date first
1911
Date last
2015
Obs
9
Pa first
192
Pa last
215
P.A. Now (θ)
215°
Sep first
5.0
Sep last
5.1
Sep. Now (ρ)
5.1"
Mag pri
12.60
Mag sec
13.20
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-008
Sec motion ra
-013
Pri motion dec
+008
Sec motion dec
-017
Notes
rPM=1.191
This double is not physical.
 
 
20311+1648 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20311+1648 ROE 14 AB 1909 2015 10 262 7.0 11.50 12.60 1.10
Show 20311+1648 J 563 BC 1911 2015 9 215 5.1 12.60 13.20 0.60 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
215.2
Precise sep
5.068
Constellation
Delphinus
Gaia DR2
03051057408
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20311+1648 J 563 BC 2000 4 213 5.0 12.00 12.30 D 203102.69+164840.4
20311+1648 J 563 BC 2001 5 213 5.0 12.00 12.30 D 203102.69+164840.4
20311+1648 J 563 BC 2015 6 215 5.1 12.60 13.20 203102.69+164840.4

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