19448-2029 DON 965AB

Coord 2000	19448-2029		Discov num	DON 965		Comp	AB		Coord arcsec 2000	19 44 45.77 -20 26 05.2
Date first	1929		Date last	2015		Obs	4
Pa first	239		Pa last	241		P.A. Now (θ)	241°
Sep first	2.4		Sep last	2.8		Sep. Now (ρ)	2.8"
Mag pri	10.47		Mag sec	13.90		delta mag (ΔM)	3.43		Spectral class	A1/2II (white)
Pri motion ra	+010		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			19448-2029	DON 965	AB	1929	2015	4	241	2.8	10.47	13.90	3.43		<===
Show			19448-2029	DON 965	AC	1919	2016	8	208	4.8	10.47	11.50	1.03
Show			19448-2029	HJ 2890	AD	1830	2016	11	280	30.7	10.47	10.43	0.04
Show			19448-2029	HJ 2890	AE	1830	2015	7	348	30.0	10.47	12.88	2.41

Quintuple system
5 visible stars in this system

Precise pa	241.4		Precise sep	2.848		Constellation	Sagittarius		Tycho2	6320-02476-1
Gaia DR2	87401178112

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19448-2029	DON 965	AB	1946	3	238	2.5	10.47	13.90	A1/2II		194445.77-202605.2
19448-2029	DON 965	AB	2015	4	241	2.8	10.47	13.90	A1/2II		194445.77-202605.2

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