20205+5336 BU  663AD

Coord 2000	20205+5336		Discov num	BU  663		Comp	AD		Coord arcsec 2000	20 20 30.64 +53 35 44.5
Date first	1958		Date last	2015		Obs	2
Pa first	232		Pa last	232		P.A. Now (θ)	232°
Sep first	11.5		Sep last	12.2		Sep. Now (ρ)	12.2"
Mag pri	6.18		Mag sec	14.50		delta mag (ΔM)	8.32		Spectral class	K4III (yellow-orange)
Pri motion ra	+012		Sec motion ra
Pri motion dec	+009		Sec motion dec
Notes

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		32491	20205+5336	BU 663	AB	1891	2015	5	305	6.9	6.18	14.20	8.02
Show		32491	20205+5336	BU 663	AC	1877	1958	7	69	6.5	6.18	12.40	6.22
Show		32491	20205+5336	BU 663	AD	1958	2015	2	232	12.2	6.18	14.50	8.32		<===

Quadruple system
4 visible stars in this system

Precise pa	231.5		Precise sep	12.168		Constellation	Cygnus		SAO	32491
HIP	100295		Tycho2	3937-00494-1		Gaia DR2	65893090688		HD	193944
HR	7791		BD	BD+53 2384		Distance	606.06		Distance ly	1976.97

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20205+5336	BU 663	AD	1958	1	232	11.5	6.18	14.50	K4III		202030.64+533544.5
20205+5336	BU 663	AD	2015	2	232	12.2	6.18	14.50	K4III		202030.64+533544.5

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