20311+1248 J   562

 
 
20h 31m 07.27s +12 46' 52.8" P.A. 146 sep 2.2 mag 10.10,10.70
 
 
Coord 2000
20311+1248
Discov num
J   562
Comp
Coord arcsec 2000
20 31 07.27 +12 46 52.8
Date first
1911
Date last
2018
Obs
11
Pa first
149
Pa last
146
P.A. Now (θ)
146°
Sep first
2.0
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
10.10
Mag sec
10.70
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-010
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
146.1
Precise sep
2.248
Constellation
Delphinus
Tycho2
1095-00217-1
Gaia DR2
49133466496
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20311+1248 J 562 1975 10 145 2.2 10.80 11.70 203107.26+124752.7
20311+1248 J 562 2018 11 146 2.2 10.10 10.70 203107.27+124652.8

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