19438+3819 STT 384AC

Coord 2000	19438+3819		Discov num	STT 384		Comp	AC		Coord arcsec 2000	19 43 47.09 +38 19 20.5
Date first	1856		Date last	2015		Obs	18
Pa first	298		Pa last	297		P.A. Now (θ)	297°
Sep first	58.5		Sep last	59.4		Sep. Now (ρ)	59.4"
Mag pri	7.59		Mag sec	9.76		delta mag (ΔM)	2.17		Spectral class	B5V (blue-white)
Pri motion ra	+001		Sec motion ra	+000
Pri motion dec	-001		Sec motion dec	-002
Notes

rPM=0.707 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			19438+3819	STT 384	AB	1843	2014	87	197	1.0	7.59	8.23	0.64
Show			19438+3819	STT 384	AC	1856	2015	18	297	59.4	7.59	9.76	2.17		<===
Show			19438+3819	STT 384	AD	1991	2015	5	294	116.0	7.59	10.82	3.23

Quadruple system
4 visible stars in this system

Precise pa	297.4		Precise sep	59.42		Constellation	Cygnus		SAO	68767
HIP	97083		Tycho2	3136-00794-1		Gaia DR2	82607118080		HD	186605
BD	BD+37 3582		Distance	675.68		Distance ly	2204.07

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19438+3819	STT 384	AC	2006	14	297	59.3	7.59	9.76	B5V	D	194347.09+381920.5
19438+3819	STT 384	AC	2008	15	297	59.3	7.59	9.76	B5V	D	194347.09+381920.5
19438+3819	STT 384	AC	2011	16	296	59.1	7.59	9.76	B5V	D	194347.09+381920.5
19438+3819	STT 384	AC	2015	18	297	59.4	7.59	9.76	B5V		194347.09+381920.5

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