20306+4956 TDT2331

 
 
20h 30m 34.69s +49 56' 27.1" P.A. 235 sep 0.9 mag 12.10,12.30
 
 
Coord 2000
20306+4956
Discov num
TDT2331
Comp
Coord arcsec 2000
20 30 34.69 +49 56 27.1
Date first
1991
Date last
1991
Obs
1
Pa first
235
Pa last
235
P.A. Now (θ)
235°
Sep first
0.9
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
12.10
Mag sec
12.30
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-013
Sec motion dec
-013
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
234.5
Precise sep
0.86
Constellation
Cygnus
Tycho2
3581-00179-1
Gaia DR2
23019071744
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20306+4956 TDT2331 1991 1 235 0.9 12.10 12.30 203034.69+495627.1

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