20189+4227 HJ 1503

 
 
20h 18m 55.48s +42 27' 28.5" P.A. 73 sep 16.9 mag 9.82,10.90 Sp A5
 
 
Coord 2000
20189+4227
Discov num
HJ 1503
Comp
Coord arcsec 2000
20 18 55.48 +42 27 28.5
Date first
1828
Date last
2015
Obs
16
Pa first
82
Pa last
73
P.A. Now (θ)
73°
Sep first
10.0
Sep last
16.9
Sep. Now (ρ)
16.9"
Mag pri
9.82
Mag sec
10.90
delta mag (ΔM)
1.08
Spectral class
A5 (white)
Pri motion ra
+002
Sec motion ra
+013
Pri motion dec
+000
Sec motion dec
+009
Notes
rPM=0.899
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
72.9
Precise sep
16.857
Constellation
Cygnus
SAO
49460
Tycho2
3159-00457-1
Gaia DR2
01969252480
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20189+4227 HJ 1503 2000 8 73 16.7 9.82 10.90 A5 D 201855.48+422728.5
20189+4227 HJ 1503 2002 10 73 16.7 9.82 10.90 A5 D 201855.48+422728.5
20189+4227 HJ 1503 2010 11 72 17.0 9.82 10.90 A5 201855.48+422728.5
20189+4227 HJ 1503 2015 12 73 16.9 9.82 10.90 A5 201855.48+422728.5

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