17189-2400 HLD 132 AB (HD 156504)

17h 18m 55.50s -23° 59' 49.2" P.A. 30.00 sep 2.0 mag 9.73,11.00 Sp A8/9V

Coord 2000 17189-2400 Discov num HLD 132 Comp AB Coord arcsec 2000 17 18 55.50 -23 59 49.2
Date first 1888 Date last 2016 Obs 10
Pa first 30 Pa last 29.7 P.A. Now (θ) 29.7°
Sep first 2.0 Sep last 2.025 Sep. Now (ρ) 2.025"
Mag pri 9.73 Mag sec 11.00 delta mag (ΔM) 1.27 Spectral class A8/9V (white)
Pri motion ra -013 Sec motion ra
Pri motion dec -022 Sec motion dec
Notes N (See Notes)




Nature of this double is uncertain.



17189-2400 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 156504 17 18 56 -23 59 49 HLD 132 AB 2016 10 30 2.0 9.73 11.00 1.27 <===
Show 185259 17 18 56 -23 59 49 H 6 54 AC 2019 12 142 79.0 9.73 9.74 0.01


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 156504 Constellation Ophiuchus Tycho2 6825-00412-1 Gaia DR2 4111173177182929408
HD 156504