20169+3130 HO  588AB

 
 
20h 16m 54.99s +31 30' 18.7" P.A. 298 sep 51.1 mag 6.91,8.89 Sp A0III dist. 189.39 pc (617.79 l.y.)
 
 
Coord 2000
20169+3130
Discov num
HO  588
Comp
AB
Coord arcsec 2000
20 16 54.99 +31 30 18.7
Date first
1893
Date last
2017
Obs
28
Pa first
298
Pa last
298
P.A. Now (θ)
298°
Sep first
50.7
Sep last
51.1
Sep. Now (ρ)
51.1"
Mag pri
6.91
Mag sec
8.89
delta mag (ΔM)
1.98
Spectral class
A0III (white)
Pri motion ra
-008
Sec motion ra
-009
Pri motion dec
-012
Sec motion dec
-014
Notes
rPM=0.134 (< 0.3, Physical double)
This double is physical.
 
 
20169+3130 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20169+3130 HO 588 AB 1893 2017 28 298 51.1 6.91 8.89 1.98 <===
Show 20169+3130 HO 588 BC 1896 2015 13 30 8.7 8.89 12.60 3.71
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.5
Precise sep
51.095
Constellation
Cygnus
SAO
69743
HIP
99967
Tycho2
2672-02200-1
Gaia DR2
48687794048
HD
193010
BD
BD+31 4020
Distance
189.39
Distance ly
617.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20169+3130 HO 588 AB 2003 21 297 50.3 6.91 8.89 A0III D 201654.99+313018.7
20169+3130 HO 588 AB 2012 23 297 50.8 6.91 8.89 A0III D 201654.99+313018.7
20169+3130 HO 588 AB 2015 24 297 51.1 6.91 8.89 A0III 201654.99+313018.7
20169+3130 HO 588 AB 2016 25 297 50.8 6.91 8.89 A0III 201654.99+313018.7
20169+3130 HO 588 AB 2017 26 298 51.1 6.91 8.89 A0III 201654.99+313018.7

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