17507-2917 B   359BC

Coord 2000	17507-2917		Discov num	B   359		Comp	BC		Coord arcsec 2000	17 50 39.86 -29 16 00.0
Date first	1927		Date last	1998		Obs	2
Pa first	225		Pa last	222		P.A. Now (θ)	222°
Sep first	4.2		Sep last	4.1		Sep. Now (ρ)	4.1"
Mag pri	10.72		Mag sec	14.70		delta mag (ΔM)	3.98		Spectral class
Pri motion ra	-003		Sec motion ra
Pri motion dec	+004		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		185832	17507-2917	B 359	AB	1913	1999	9	340	47.0	8.36	10.72	2.36
Show		185832	17507-2917	B 359	BC	1927	1998	2	222	4.1	10.72	14.70	3.98		<===
Show		185832	17507-2917	B 359	BD	1927	1999	3	118	7.7	10.72	14.00	3.28

Quadruple system
4 visible stars in this system

Precise pa	221.6		Precise sep	4.14		Constellation	Sagittarius		SAO	185832
Tycho2	6840-01152-1		Gaia DR2	4057230518218988928

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17507-2917	B 359	BC	1998	2	222	4.1	10.72	14.70		D	175039.86-291600.0

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