17019-3209 HDO 310 AD

17^h 01^m 52.65^s -32° 08' 36.2" P.A. 37.00 sep 51.3 mag 5.03,13.30 Sp B8V dist. 137.17 pc (447.45 l.y.)

Coord 2000	17019-3209		Discov num	HDO 310		Comp	AD		Coord arcsec 2000	17 01 52.65 -32 08 36.2
Date first	1897		Date last	2000		Obs	4
Pa first	41		Pa last	36.6		P.A. Now (θ)	36.6°
Sep first	48.2		Sep last	51.338		Sep. Now (ρ)	51.338"
Mag pri	5.03		Mag sec	13.30		delta mag (ΔM)	8.27		Spectral class	B8V (blue-white)
Pri motion ra	-008		Sec motion ra	-026
Pri motion dec	-050		Sec motion dec	-012
Notes

rPM=0.83

This double is not physical.

17019-3209 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		208324	17 01 53 -32 08 36	HDO 310 AB	2000	8	155	22.6	5.03	12.60	7.57
Show		208324	17 01 53 -32 08 36	HDO 310 AC	2000	5	103	42.5	5.03	13.10	8.07
Show		208324	17 01 53 -32 08 36	HDO 310 AD	2000	4	37	51.3	5.03	13.30	8.27		<===
Show		208324	17 01 53 -32 08 36	OUD 6 AE	2015	2	26	8.9	5.26	12.60	7.34

Quintuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Scorpius		SAO	208324		HIP	83336		Tycho2	7364-02287-1
Gaia DR2	6028158536066799744		HD	153613		HR	6316		CD	CD-3113473
CP	CP-31 4546		FK5	3354		Distance	137.17		Distance ly	447.45