20338+3336 HJ 1538

 
 
20h 33m 48.37s +33 37' 31.0" P.A. 122 sep 5.5 mag 9.72,10.45
 
 
Coord 2000
20338+3336
Discov num
HJ 1538
Comp
Coord arcsec 2000
20 33 48.37 +33 37 31.0
Date first
1828
Date last
2018
Obs
15
Pa first
128
Pa last
122
P.A. Now (θ)
122°
Sep first
3.0
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
9.72
Mag sec
10.45
delta mag (ΔM)
0.73
Spectral class
Pri motion ra
-001
Sec motion ra
+003
Pri motion dec
-006
Sec motion dec
-007
Notes
N (See Notes)
rPM=0.541
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
121.9
Precise sep
5.542
Constellation
Cygnus
Tycho2
2690-00613-1
Gaia DR2
55045042048
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20338+3336 HJ 1538 1999 7 122 5.4 9.72 10.45 D 203348.37+333731.0
20338+3336 HJ 1538 2009 8 121 5.4 9.72 10.45 D 203348.37+333731.0
20338+3336 HJ 1538 2010 11 120 4.4 9.72 10.45 203348.37+333731.0
20338+3336 HJ 1538 2015 12 122 5.4 9.72 10.45 N 203348.37+333731.0

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