19459+3953 A  1404AB

Coord 2000	19459+3953		Discov num	A  1404		Comp	AB		Coord arcsec 2000	19 45 55.23 +39 53 19.9
Date first	1906		Date last	2008		Obs	26
Pa first	322		Pa last	280		P.A. Now (θ)	280°
Sep first	0.2		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	7.60		Mag sec	8.30		delta mag (ΔM)	0.7		Spectral class	B9III (blue-white)
Pri motion ra	+010		Sec motion ra
Pri motion dec	-010		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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		68820	19459+3953	A 1404	AB	1906	2008	26	280	0.2	7.60	8.30	0.70		<===
Show		68820	19459+3953	A 1404	AB,C	1892	2015	11	272	19.3	7.51	13.00	5.49
Show		68820	19459+3953	A 1404	AB,D	1892	2015	12	80	20.3	7.51	12.00	4.49

Quadruple system
5 visible stars in this system

Precise pa	280.2		Precise sep	0.235		Constellation	Cygnus		SAO	68820
Tycho2	3140-02825-1		Gaia DR2	09691584512		HD	186996

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19459+3953	A 1404	AB	1996	25	290	0.2	7.60	8.30	B9III	N	194555.23+395319.9
19459+3953	A 1404	AB	2008	26	100	0.2	7.60	8.30	B9III	N	194555.23+395319.9

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