20158+5230 STT 404AB

Coord 2000	20158+5230		Discov num	STT 404		Comp	AB		Coord arcsec 2000	20 15 49.33 +52 30 08.2
Date first	1843		Date last	2015		Obs	20
Pa first	114		Pa last	115		P.A. Now (θ)	115°
Sep first	30.0		Sep last	28.5		Sep. Now (ρ)	28.5"
Mag pri	7.59		Mag sec	9.80		delta mag (ΔM)	2.21		Spectral class	K5III (yellow-orange)
Pri motion ra	+005		Sec motion ra	-006
Pri motion dec	-005		Sec motion dec	-006
Notes	N Z (See Notes, Parallax indicates components are physical)

rPM=1.302 This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20158+5230	STT 404	AB	1843	2015	20	115	28.5	7.59	9.80	2.21		<===
Show			20158+5230	WAL 130	AC	1897	2015	9	2	78.9	7.59	11.08	3.49
Show			20158+5230	WAL 130	AD	1944	2015	6	227	25.9	7.59	12.31	4.72

Quadruple system
4 visible stars in this system

Precise pa	115.2		Precise sep	28.481		Constellation	Cygnus		SAO	32404
HIP	99875		Tycho2	3937-01802-1		Gaia DR2	27287030784		HD	193054
BD	BD+52 2666		Distance	228.83		Distance ly	746.44

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20158+5230	STT 404	AB	2002	12	115	28.6	7.59	9.80	K5III	NZD	201549.33+523008.2
20158+5230	STT 404	AB	2003	16	115	28.5	7.59	9.80	K5III	NZD	201549.33+523008.2
20158+5230	STT 404	AB	2012	17	115	28.5	7.59	9.80	K5III	NZD	201549.33+523008.2
20158+5230	STT 404	AB	2015	19	115	28.5	7.59	9.80	K5III	NZ	201549.33+523008.2

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