17559+3326 HO   72AD

Coord 2000	17559+3326		Discov num	HO   72		Comp	AD		Coord arcsec 2000	17 55 50.03 +33 25 14.3
Date first	1949		Date last	2002		Obs	4
Pa first	50		Pa last	45		P.A. Now (θ)	45°
Sep first	145.4		Sep last	153.4		Sep. Now (ρ)	153.4"
Mag pri	10.20		Mag sec	13.20		delta mag (ΔM)	3		Spectral class	K7 (yellow-orange)
Pri motion ra	+012		Sec motion ra	-003
Pri motion dec	-231		Sec motion dec	-007
Notes

rPM=0.971 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 55 50 +33 25 14	HO 72 AB	2015	23	359	33.4	10.20	12.90	2.70
Show			17 55 50 +33 25 14	HO 72 AC	2016	20	37	10.6	10.20	14.40	4.20
Show			17 55 50 +33 25 14	HO 72 AD	2002	4	45	153.4	10.20	13.20	3.00		<===
Show			17 55 50 +33 25 45	HO 72 BC	2003	11	162	23.0	12.90	14.40	1.50
Show			17 55 50 +33 25 45	HO 72 BD	2015	11	56	134.4	12.90	13.20	0.30

Quadruple system
4 visible stars in this system

Precise pa	45.1		Precise sep	153.37		Constellation	Hercules		HIP	87773
Gaia DR2	4604269610637580928		BD	BD+33 2990		Distance	25.39		Distance ly	82.82

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17559+3326	HO 72	AD	2002	5	45	153.4	10.16	13.20	K7	D	175550.03+332516.4

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