16525-4300 KOU 71 AD

Coord 2000	16525-4300		Discov num	KOU  71		Comp	AD		Coord arcsec 2000	16 52 31.88 -42 59 30.4
Date first	2000		Date last	2015		Obs	2
Pa first	283		Pa last	286.2		P.A. Now (θ)	286.2°
Sep first	6.2		Sep last	6.173		Sep. Now (ρ)	6.173"
Mag pri	6.58		Mag sec	13.68		delta mag (ΔM)	7.1		Spectral class	A0V (white)
Pri motion ra	-010		Sec motion ra
Pri motion dec	-024		Sec motion dec
Notes	U W K (Proper motion indicates non-physical, , K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		227331	16 52 32 -42 59 30	KOU 71 AB	2000	1	5	4.7	6.58	12.76	6.18
Show		227331	16 52 32 -42 59 30	KOU 71 AC	2000	1	222	3.9	6.58	13.13	6.55
Show		227331	16 52 32 -42 59 30	KOU 71 AD	2015	2	286	6.2	6.58	13.68	7.10		<===

Quadruple system
4 estimated visually detectable stars in this system

Constellation	Scorpius		SAO	227331		HIP	82560		Tycho2	7876-01089-1
Gaia DR2	5964856323071807360		HD	151966		CD	CD-4211609		CP	CP-42 7538
Distance	155.76		Distance ly	508.09