20200+5116 ABH 138AF

Coord 2000	20200+5116		Discov num	ABH 138		Comp	AF		Coord arcsec 2000	20 20 01.12 +51 15 33.7
Date first	1988		Date last	2015		Obs	8
Pa first	111		Pa last	110		P.A. Now (θ)	110°
Sep first	85.3		Sep last	86.0		Sep. Now (ρ)	86"
Mag pri	9.06		Mag sec	13.71		delta mag (ΔM)	4.65		Spectral class	K3III (yellow-orange)
Pri motion ra	-020		Sec motion ra	-012
Pri motion dec	-015		Sec motion dec	-022
Notes	U (Proper motion indicates non-physical)

rPM=0.424 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32481	20 20 01 +51 15 34	ES 800 AB	2018	20	322	30.2	9.06	10.51	1.45
Show		32481	20 20 01 +51 15 34	ES 800 AC	2018	9	102	42.6	9.06	12.64	3.58
Show		32481	20 20 01 +51 15 34	ES 800 AE	2018	22	96	115.6	9.06	9.47	0.41
Show		32481	20 20 01 +51 15 34	ABH 138 AF	2015	8	110	86.0	9.06	13.71	4.65		<===
Show		32481	20 20 01 +51 15 34	ABH 138 AG	2015	8	338	76.5	9.06	14.05	4.99
Show		32481	20 20 06 +51 15 25	ES 800 CD	2015	3	133	2.5	12.64	14.60	1.96
Show		32481	20 20 06 +51 15 25	ES 800 CE	2018	9	93	73.3	12.64	9.47	3.17

Septuple system
7 visible stars in this system

Precise pa	109.7		Precise sep	86.034		Constellation	Cygnus		SAO	32481
Tycho2	3584-00394-1		Gaia DR2	2181240514706207360		HD	235183

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20200+5116	ABH 138	AF	2000	2	110	86.0	9.06	13.71	K3III	D	202001.12+511533.7
20200+5116	ABH 138	AF	2003	3	110	85.9	9.06	13.71	K3III	UD	202001.12+511533.7
20200+5116	ABH 138	AF	2015	4	110	86.0	9.06	13.71	K3III	U	202001.12+511533.7

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