17378-2323 HLD 30 AB (HD 159843)

 
 
17h 37m 46.85s -23° 23' 21.4" P.A. 109.00 sep 3.2 mag 8.66,10.03 Sp F3V dist. 156.49 pc (510.47 l.y.)
 
 
Coord 2000 17378-2323 Discov num HLD  30 Comp AB Coord arcsec 2000 17 37 46.85 -23 23 21.4
Date first 1881 Date last 2016 Obs 25
Pa first 112 Pa last 108.6 P.A. Now (θ) 108.6°
Sep first 3.3 Sep last 3.238 Sep. Now (ρ) 3.238"
Mag pri 8.66 Mag sec 10.03 delta mag (ΔM) 1.37 Spectral class F3V (yellow-white)
Pri motion ra -037 Sec motion ra -018
Pri motion dec -027 Sec motion dec -033
Notes
rPM=0.435
Nature of this double is uncertain.
 
 
17378-2323 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 159843 17 37 47 -23 23 21 HLD 30 AB 2016 25 109 3.2 8.66 10.03 1.37 <===
Show 17 37 47 -23 23 21 HLD 30 AC 2015 9 340 71.1 8.66 11.21 2.55
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 159843 Constellation Ophiuchus HIP 86278 Tycho2 6827-00548-1
Gaia DR2 4116429392573020160 HD 159843 CD CD-2313469 Distance 156.49
Distance ly 510.47