20136+5307 STF2658AC

Coord 2000	20136+5307		Discov num	STF2658		Comp	AC		Coord arcsec 2000	20 13 40.74 +53 07 30.3
Date first	1830		Date last	2015		Obs	54
Pa first	220		Pa last	206		P.A. Now (θ)	206°
Sep first	33.5		Sep last	65.1		Sep. Now (ρ)	65.1"
Mag pri	7.19		Mag sec	10.33		delta mag (ΔM)	3.14		Spectral class	F5V (yellow-white)
Pri motion ra	+043		Sec motion ra	-006
Pri motion dec	+169		Sec motion dec	-009
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=1.059 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32380	20136+5307	STF2658	AB	1828	2019	83	106	5.4	7.19	9.38	2.19	Y
Show		32380	20136+5307	STF2658	AC	1830	2015	54	206	65.1	7.19	10.33	3.14		<===
Show		32380	20136+5307	STF2658	AD	1910	2015	9	284	30.9	7.19	12.90	5.71
Show		32380	20136+5307	STF2658	BC	1842	2012	27	208	65.5	9.38	10.33	0.95
Show		32380	20136+5307	STF2658	BF	1910	2015	4	157	17.7	9.38	14.60	5.22

Quintuple system
5 visible stars in this system

Precise pa	205.6		Precise sep	65.085		Constellation	Cygnus		SAO	32380
HIP	99680		Tycho2	3937-01789-1		Gaia DR2	00111529984		HD	192679
BD	BD+52 2657		Distance	44.33		Distance ly	144.6

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20136+5307	STF2658	AC	2004	36	206	61.2	7.19	10.33	F5V	NLD	201340.70+530728.8
20136+5307	STF2658	AC	2012	39	205	64.6	7.19	10.33	F5V	NLD	201340.70+530728.8
20136+5307	STF2658	AC	2015	40	205	64.9	7.19	10.33	F5V	NL U	201340.74+530730.3

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