20069-0855 HDO 156AB

 
 
20h 06m 55.85s -08 54' 51.3" P.A. 89.00 sep 6.6 mag 7.89,10.30 Sp A9V dist. 213.68 pc (697.02 l.y.)
 
 
Coord 2000
20069-0855
Discov num
HDO 156
Comp
AB
Coord arcsec 2000
20 06 55.85 -08 54 51.3
Date first
1892
Date last
2016
Obs
16
Pa first
81
Pa last
89
P.A. Now (θ)
89°
Sep first
6.1
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
7.89
Mag sec
10.30
delta mag (ΔM)
2.41
Spectral class
A9V (white)
Pri motion ra
+006
Sec motion ra
+008
Pri motion dec
-008
Sec motion dec
-012
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.31
Nature of this double is uncertain.
 
 
20069-0855 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20069-0855 HDO 156 AB 1892 2016 16 89 6.6 7.89 10.30 2.41 <===
Show 20069-0855 HDO 156 AC 1907 2016 8 54 8.3 7.89 12.80 4.91
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
88.6
Precise sep
6.601
Constellation
Capricornus
HIP
99085
Tycho2
5739-01739-1
Gaia DR2
21098513664
HD
190774
BD
BD-09 5356
Distance
213.68
Distance ly
697.02
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20069-0855 HDO 156 AB 1999 9 88 6.6 7.89 10.30 A9V N D 200655.85-085451.3
20069-0855 HDO 156 AB 2010 10 89 6.4 7.89 10.30 A9V N D 200655.85-085451.3
20069-0855 HDO 156 AB 2015 12 89 6.6 7.89 10.30 A9V N 200655.85-085451.3
20069-0855 HDO 156 AB 2016 16 89 6.6 7.89 10.30 A9V N 200655.85-085451.3

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