19569+1935 TOB 305AC

Coord 2000	19569+1935		Discov num	TOB 305		Comp	AC		Coord arcsec 2000	19 56 55.20 +19 35 45.5
Date first	1982		Date last	2015		Obs	8
Pa first	147		Pa last	146		P.A. Now (θ)	146°
Sep first	15.1		Sep last	15.9		Sep. Now (ρ)	15.9"
Mag pri	9.80		Mag sec	13.40		delta mag (ΔM)	3.6		Spectral class	A2 (white)
Pri motion ra	-006		Sec motion ra
Pri motion dec	-006		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		105456	19569+1935	BRT2523	AB	1938	2015	8	39	5.6	9.80	11.20	1.40
Show		105456	19569+1935	TOB 305	AC	1982	2015	8	146	15.9	9.80	13.40	3.60		<===

Triple system
3 visible stars in this system

Precise pa	146.4		Precise sep	15.944		Constellation	Sagitta		SAO	105456
Tycho2	1624-00778-1		Gaia DR2	99676282752		HD	350884

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19569+1935	TOB 305	AC	1999	2	147	15.8	9.80	13.40		D	195655.20+193545.5
19569+1935	TOB 305	AC	2001	3	147	15.8	9.80	13.40		D	195655.20+193545.5
19569+1935	TOB 305	AC	2015	4	146	15.9	9.80	13.40	A2		195655.20+193545.5

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