20306+3452 ES 2305

 
 
20h 30m 37.20s +34 52' 06.5" P.A. 286 sep 6.7 mag 9.64,12.40
 
 
Coord 2000
20306+3452
Discov num
ES 2305
Comp
Coord arcsec 2000
20 30 37.20 +34 52 06.5
Date first
1927
Date last
2015
Obs
8
Pa first
288
Pa last
286
P.A. Now (θ)
286°
Sep first
6.5
Sep last
6.7
Sep. Now (ρ)
6.7"
Mag pri
9.64
Mag sec
12.40
delta mag (ΔM)
2.76
Spectral class
Pri motion ra
+007
Sec motion ra
-068
Pri motion dec
-031
Sec motion dec
-023
Notes
rPM=1.051
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
286.2
Precise sep
6.72
Constellation
Cygnus
Tycho2
2693-00664-1
Gaia DR2
08961586432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20306+3452 ES 2305 1999 2 287 6.7 9.64 12.40 D 203037.20+345206.5
20306+3452 ES 2305 2002 3 286 6.8 9.64 12.40 D 203037.20+345206.5
20306+3452 ES 2305 2015 4 286 6.7 9.64 12.40 203037.20+345206.5

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