20066+0735 STTA198AB

Coord 2000	20066+0735		Discov num	STTA198		Comp	AB		Coord arcsec 2000	20 06 38.76 +07 34 34.2
Date first	1875		Date last	2018		Obs	40
Pa first	186		Pa last	185		P.A. Now (θ)	185°
Sep first	65.2		Sep last	64.6		Sep. Now (ρ)	64.6"
Mag pri	7.12		Mag sec	7.55		delta mag (ΔM)	0.43		Spectral class	A2V+A3V (white/white)
Pri motion ra	+000		Sec motion ra	+005
Pri motion dec	-022		Sec motion dec	-019
Notes	N Z (See Notes, Parallax indicates components are physical)

Visually invisible, K-band or other infrared star rPM=0.265 (< 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			20066+0735	STTA198	AB	1875	2018	40	185	64.6	7.12	7.55	0.43		<===
Show			20066+0735	STTA198	AC	1901	2019	12	173	35.1	7.12	13.40	6.28
Show			20066+0735	GMC 6	AD	2000	2016	8	316	33.8	7.12	13.90	6.78

Quadruple system
4 visible stars in this system

Precise pa	185		Precise sep	64.6		Constellation	Aquila		HIP	99055
Tycho2	1072-02229-1		Gaia DR2	52639518720		HD	190849		BD	BD+07 4367
Distance	121.36		Distance ly	395.88

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20066+0735	STTA198	AB	2003	26	185	65.2	7.12	7.55	A2V A3V	NZD	200638.76+073434.2
20066+0735	STTA198	AB	2008	27	185	65.5	7.12	7.55	A2V A3V	NZD	200638.76+073434.2
20066+0735	STTA198	AB	2011	29	186	64.1	7.12	7.55	A2V A3V	NZD	200638.76+073434.2
20066+0735	STTA198	AB	2012	31	185	65.9	7.12	7.55	A2V A3V	NZD	200638.76+073434.2
20066+0735	STTA198	AB	2013	34	186	64.8	7.12	7.55	A2V A3V	NZD	200638.76+073434.2
20066+0735	STTA198	AB	2017	36	185	64.6	7.12	7.55	A2V+A3V	NZ	200638.76+073434.2
20066+0735	STTA198	AB	2018	40	185	64.6	7.12	7.55	A2V+A3V	NZ	200638.76+073434.2

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