20035+3601 MCA  59Aa,Ab

Coord 2000	20035+3601		Discov num	MCA  59		Comp	Aa,Ab		Coord arcsec 2000	20 03 29.42 +36 01 28.6
Date first	1980		Date last	1996		Obs	3
Pa first	99		Pa last	340		P.A. Now (θ)	340°
Sep first	0.1		Sep last	0.1		Sep. Now (ρ)	0.1"
Mag pri	6.63		Mag sec			delta mag (ΔM)			Spectral class	O9.5IIIe (blue)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-008		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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		69324	20035+3601	MCA 59	Aa,Ab	1980	1996	3	340	0.1	6.63				<===
Show		69324	20035+3601	STF2624	AB	1823	2018	147	174	1.9	7.09	7.73	0.64
Show		69324	20035+3601	STF2624	AC	1823	2018	42	327	42.3	7.09	9.26	2.17
Show		69324	20035+3601	STF2624	AD	1894	2018	11	171	29.0	7.09	12.90	5.81
Show		69324	20035+3601	STF2624	BC	1842	2018	33	328	44.7	7.73	9.26	1.53

Quintuple system
4 visible stars in this system

Precise pa	339.8		Precise sep	0.09		Constellation	Cygnus		SAO	69324
HIP	98753		Tycho2	2682-03566-1		Gaia DR2	11313969152		HD	190429
BD	BD+35 3930		Distance	862.07		Distance ly	2812.07

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20035+3601	MCA 59	Aa,Ab	1996	3	340	0.1	6.63		O9.5IIIe	N	200329.40+360130.6

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