20200+5116 ES  800AC

Coord 2000	20200+5116		Discov num	ES  800		Comp	AC		Coord arcsec 2000	20 20 01.12 +51 15 33.7
Date first	1899		Date last	2018		Obs	9
Pa first	104		Pa last	102		P.A. Now (θ)	102°
Sep first	41.2		Sep last	42.6		Sep. Now (ρ)	42.6"
Mag pri	9.06		Mag sec	12.64		delta mag (ΔM)	3.58		Spectral class	K3III (yellow-orange)
Pri motion ra	-020		Sec motion ra	-009
Pri motion dec	-015		Sec motion dec	-001
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.712 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32481	20200+5116	ES 800	AB	1897	2018	20	322	30.2	9.06	10.51	1.45
Show		32481	20200+5116	ES 800	AC	1899	2018	9	102	42.6	9.06	12.64	3.58		<===
Show		32481	20200+5116	ES 800	AE	1897	2018	22	96	115.6	9.06	9.47	0.41
Show		32481	20200+5116	ABH 138	AF	1988	2015	8	110	86.0	9.06	13.71	4.65
Show		32481	20200+5116	ABH 138	AG	1988	2015	8	338	76.5	9.06	14.05	4.99
Show		32481	20200+5116	ES 800	CD	1909	2015	3	133	2.5	12.64	14.60	1.96
Show		32481	20200+5116	ES 800	CE	1899	2018	9	93	73.3	12.64	9.47	3.17

Septuple system
7 visible stars in this system

Precise pa	102		Precise sep	42.587		Constellation	Cygnus		SAO	32481
Tycho2	3584-00394-1		Gaia DR2	14706207360		HD	235183

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20200+5116	ES 800	AC	2000	6	102	42.5	9.06	12.64	K3III	D	202001.12+511533.7
20200+5116	ES 800	AC	2003	7	101	42.3	9.06	12.64	K3III	UD	202001.12+511533.7
20200+5116	ES 800	AC	2015	8	101	42.4	9.06	12.64	K3III	U	202001.12+511533.7
20200+5116	ES 800	AC	2018	9	102	42.6	9.06	12.64	K3III	U	202001.12+511533.7

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