19579+2715 AC   16AB

Coord 2000	19579+2715		Discov num	AC   16		Comp	AB		Coord arcsec 2000	19 57 54.45 +27 15 07.3
Date first	1859		Date last	2016		Obs	57
Pa first	234		Pa last	232		P.A. Now (θ)	232°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.4"
Mag pri	7.81		Mag sec	9.17		delta mag (ΔM)	1.36		Spectral class	A0 (white)
Pri motion ra	+000		Sec motion ra	+000
Pri motion dec	-012		Sec motion dec	-012
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		87988	19579+2715	AC 16	AB	1859	2016	57	232	0.4	7.81	9.17	1.36		<===
Show		87988	19579+2715	AC 16	AC	1875	2017	29	136	92.3	7.81	7.97	0.16

Triple system
3 visible stars in this system

Precise pa	232.1		Precise sep	0.37		Constellation	Vulpecula		SAO	87988
HIP	98248		Tycho2	2149-01062-1		HD	189214		BD	BD+26 3744
Distance	462.96		Distance ly	1510.18

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579+2715	AC 16	AB	1996	62	237	0.4	7.81	9.17	A0	D	195754.45+271507.3
19579+2715	AC 16	AB	2016	57	232	0.4	7.81	9.17	A0	N	195754.45+271507.3

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