20117+0629 TOB 307AB

Coord 2000	20117+0629		Discov num	TOB 307		Comp	AB		Coord arcsec 2000	20 11 42.77 +06 28 42.8
Date first	1982		Date last	2015		Obs	7
Pa first	182		Pa last	182		P.A. Now (θ)	182°
Sep first	44.6		Sep last	44.8		Sep. Now (ρ)	44.8"
Mag pri	13.46		Mag sec	11.66		delta mag (ΔM)	1.8		Spectral class
Pri motion ra	+021		Sec motion ra	+015
Pri motion dec	+017		Sec motion dec	-007
Notes

rPM=0.916 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 11 43 +06 28 43	TOB 307 AB	2015	7	182	44.8	13.46	11.66	1.80		<===
Show			20 11 43 +06 28 43	TOB 307 AC	2015	7	184	8.8	13.20	14.90	1.70

Triple system
3 visible stars in this system

Precise pa	181.6		Precise sep	44.817		Constellation	Aquila		Tycho2	0507-01859-1
Gaia DR2	4250316717213937280

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20117+0629	TOB 307	AB	2000	2	182	44.7	13.20	11.60		D	201142.77+062842.8
20117+0629	TOB 307	AB	2015	4	182	44.8	13.46	11.66			201142.77+062842.8

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