19402+2611 A   272AC

Coord 2000	19402+2611		Discov num	A   272		Comp	AC		Coord arcsec 2000	19 40 09.48 +26 11 23.4
Date first	1892		Date last	2015		Obs	20
Pa first	305		Pa last	307		P.A. Now (θ)	307°
Sep first	15.9		Sep last	14.5		Sep. Now (ρ)	14.5"
Mag pri	9.77		Mag sec	10.45		delta mag (ΔM)	0.68		Spectral class	A0 (white)
Pri motion ra	-004		Sec motion ra	-003
Pri motion dec	-007		Sec motion dec	-004
Notes

rPM=0.392 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			19402+2611	A 272	AB	1901	2009	19	193	1.3	9.77	10.45	0.68
Show			19402+2611	A 272	AC	1892	2015	20	307	14.5	9.77	10.45	0.68		<===
Show			19402+2611	A 272	CD	1901	1925	3	11	1.1	10.45	15.10	4.65

Quadruple system
4 visible stars in this system

Precise pa	306.7		Precise sep	14.496		Constellation	Vulpecula		SAO	87536
Tycho2	2142-00023-1		Gaia DR2	53337220864		HD	185857

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19402+2611	A 272	AC	2006	17	308	15.3	9.77	10.45		D	194009.48+261123.4
19402+2611	A 272	AC	2009	18	308	14.3	9.77	10.45		D	194009.48+261123.4
19402+2611	A 272	AC	2010	20	309	14.6	9.77	10.45	A0		194009.48+261123.4
19402+2611	A 272	AC	2015	20	307	14.5	9.77	10.45	A0		194009.48+261123.4

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