20305+1829 J  2313

 
 
20h 30m 30.18s +18 29' 07.8" P.A. 137.00 sep 6.2 mag 11.50,13.20
 
 
Coord 2000
20305+1829
Discov num
J  2313
Comp
Coord arcsec 2000
20 30 30.18 +18 29 07.8
Date first
1942
Date last
2015
Obs
8
Pa first
110
Pa last
137
P.A. Now (θ)
137°
Sep first
5.0
Sep last
6.2
Sep. Now (ρ)
6.2"
Mag pri
11.50
Mag sec
13.20
delta mag (ΔM)
1.7
Spectral class
Pri motion ra
+015
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
137.2
Precise sep
6.206
Constellation
Delphinus
SAO
106185
Tycho2
1636-01503-1
Gaia DR2
16768102272
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20305+1829 J 2313 1944 2 105 5.0 9.50 11.90 203012.00+182900.0
20305+1829 J 2313 2000 4 132 6.0 9.50 11.90 203030.18+182907.8
20305+1829 J 2313 2001 5 133 6.0 9.50 11.90 203030.18+182907.8
20305+1829 J 2313 2015 5 137 6.2 11.50 13.20 203030.18+182907.8

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