20367+5053 HLD  39AB

 
 
20h 36m 42.99s +50 53' 23.4" P.A. 174 sep 7.5 mag 8.00,11.20 Sp A2V dist. 216.45 pc (706.06 l.y.)
 
 
Coord 2000
20367+5053
Discov num
HLD  39
Comp
AB
Coord arcsec 2000
20 36 42.99 +50 53 23.4
Date first
1881
Date last
2017
Obs
14
Pa first
176
Pa last
174
P.A. Now (θ)
174°
Sep first
7.6
Sep last
7.5
Sep. Now (ρ)
7.5"
Mag pri
8.00
Mag sec
11.20
delta mag (ΔM)
3.2
Spectral class
A2V (white)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-009
Sec motion dec
-009
Notes
Nature of this double is uncertain.
 
 
20367+5053 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20367+5053 HEI 879 Aa,Ab 1991 2008 5 137 0.1 8.40 9.20 0.80
Show 20367+5053 HLD 39 AB 1881 2017 14 174 7.5 8.00 11.20 3.20 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
174.3
Precise sep
7.466
Constellation
Cygnus
SAO
32731
HIP
101691
Tycho2
3585-02079-1
Gaia DR2
39457244672
HD
196670
BD
BD+50 3145
Distance
216.45
Distance ly
706.06
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20367+5053 HLD 39 AB 2002 9 176 8.7 8.00 10.50 A2V D 203642.99+505323.4
20367+5053 HLD 39 AB 2003 10 175 7.4 8.00 10.50 A2V D 203642.99+505323.4
20367+5053 HLD 39 AB 2009 11 175 7.6 8.00 11.20 A2V 203642.99+505323.4
20367+5053 HLD 39 AB 2010 11 174 7.1 8.00 11.20 A2V 203642.99+505323.4
20367+5053 HLD 39 AB 2017 14 174 7.5 8.00 11.20 A2V 203642.99+505323.4

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