20136+5307 STF2658AD

Coord 2000	20136+5307		Discov num	STF2658		Comp	AD		Coord arcsec 2000	20 13 40.74 +53 07 30.3
Date first	1910		Date last	2015		Obs	5
Pa first	314		Pa last	284		P.A. Now (θ)	284°
Sep first	34.3		Sep last	30.4		Sep. Now (ρ)	30.4"
Mag pri	7.19		Mag sec	12.90		delta mag (ΔM)	5.71		Spectral class	F5V (yellow-white)
Pri motion ra	+043		Sec motion ra
Pri motion dec	+169		Sec motion dec
Notes	N (See 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			20136+5307	STF2658	AB	1828	2015	78	106	5.4	7.19	9.38	2.19
Show			20136+5307	STF2658	AC	1830	2015	40	205	64.9	7.19	10.33	3.14
Show			20136+5307	STF2658	AD	1910	2015	5	284	30.4	7.19	12.90	5.71		<===
Show			20136+5307	STF2658	BC	1842	2012	27	208	65.5	9.38	10.33	0.95
Show			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	284		Precise sep	30.387		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	AD	1913	2	312	33.9	7.19	12.90	F5V	N	201340.70+530728.8
20136+5307	STF2658	AD	2012	3	285	30.5	7.19	12.90	F5V	N D	201340.70+530728.8
20136+5307	STF2658	AD	2015	5	284	30.4	7.19	12.90	F5V	N	201340.74+530730.3

If you need more information about this double, apply for a data request form to the WDS.