20035+3601 STF2624AD

Coord 2000	20035+3601		Discov num	STF2624		Comp	AD		Coord arcsec 2000	20 03 29.42 +36 01 28.6
Date first	1894		Date last	2018		Obs	11
Pa first	172		Pa last	171		P.A. Now (θ)	171°
Sep first	27.5		Sep last	29.0		Sep. Now (ρ)	29"
Mag pri	7.09		Mag sec	12.90		delta mag (ΔM)	5.81		Spectral class	O9.5IIIe (blue)
Pri motion ra	-003		Sec motion ra	-003
Pri motion dec	-008		Sec motion dec	-009
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.105 (< 0.3, Physical double) This double is physical.

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	171.1		Precise sep	28.97		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	STF2624	AD	2001	8	171	29.2	7.09	12.90	O9.5IIIe	N D	200329.40+360130.6
20035+3601	STF2624	AD	2002	9	171	27.8	7.09	12.90	O9.5IIIe	N D	200329.40+360130.6
20035+3601	STF2624	AD	2015	10	171	27.0	7.09	12.90	O9.5IIIe	N	200329.42+360128.6
20035+3601	STF2624	AD	2018	11	171	29.0	7.09	12.90	O9.5IIIe	N	200329.42+360128.6

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