20003+1757 HU  352AB

Coord 2000	20003+1757		Discov num	HU  352		Comp	AB		Coord arcsec 2000	20 00 21.02 +17 56 34.3
Date first	1901		Date last	2007		Obs	17
Pa first	262		Pa last	176		P.A. Now (θ)	176°
Sep first	0.2		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	9.00		Mag sec	9.50		delta mag (ΔM)	0.5		Spectral class	A0 (white)
Pri motion ra	-001		Sec motion ra
Pri motion dec	-001		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		105531	20003+1757	HU 352	AB	1901	2007	17	176	0.2	9.00	9.50	0.50		<===
Show		105531	20003+1757	LBU 8	AB,C	1896	2019	12	28	63.8	8.76	11.38	2.62
Show		105531	20003+1757	LBU 8	AB,D	1991	2019	8	352	65.3	8.76	11.30	2.54

Quadruple system
5 visible stars in this system

Precise pa	176.4		Precise sep	0.172		Constellation	Sagitta		SAO	105531
Tycho2	1621-01665-1		Gaia DR2	58340021504		HD	189615

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20003+1757	HU 352	AB	1992	16	225	0.2	9.00	9.50	A0		200021.02+175634.3
20003+1757	HU 352	AB	2007	17	176	0.2	9.00	9.50	A0		200021.02+175634.3

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