20304+3833 A  1430

 
 
20h 30m 24.72s +38 33' 23.9" P.A. 132 sep 3.4 mag 8.75,12.80 Sp A0
 
 
Coord 2000
20304+3833
Discov num
A  1430
Comp
Coord arcsec 2000
20 30 24.72 +38 33 23.9
Date first
1906
Date last
2015
Obs
7
Pa first
135
Pa last
132
P.A. Now (θ)
132°
Sep first
3.1
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
8.75
Mag sec
12.80
delta mag (ΔM)
4.05
Spectral class
A0 (white)
Pri motion ra
+014
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
131.5
Precise sep
3.395
Constellation
Cygnus
SAO
70123
Tycho2
3153-01057-1
Gaia DR2
70997466240
HD
195507
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20304+3833 A 1430 2001 5 131 3.1 8.75 12.80 A0 203024.72+383323.9
20304+3833 A 1430 2005 6 133 3.6 8.75 12.80 A0 203024.72+383323.9
20304+3833 A 1430 2015 7 132 3.4 8.75 12.80 A0 203024.72+383323.9

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