20116-0609 BU  833AD

Coord 2000	20116-0609		Discov num	BU  833		Comp	AD		Coord arcsec 2000	20 11 36.08 -06 08 59.8
Date first	1898		Date last	2015		Obs	9
Pa first	357		Pa last	352		P.A. Now (θ)	352°
Sep first	43.6		Sep last	43.6		Sep. Now (ρ)	43.6"
Mag pri	8.35		Mag sec	13.89		delta mag (ΔM)	5.54		Spectral class	F5 (yellow-white)
Pri motion ra	+025		Sec motion ra	-023
Pri motion dec	-012		Sec motion dec	+004
Notes

rPM=1.825 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20116-0609	BU 833	AB	1881	2015	18	63	127.0	8.35	9.21	0.86
Show			20116-0609	BU 833	AD	1898	2015	9	352	43.6	8.35	13.89	5.54		<===
Show			20116-0609	BU 833	BC	1881	2015	10	63	2.8	9.21	12.60	3.39

Quadruple system
4 visible stars in this system

Precise pa	351.6		Precise sep	43.57		Constellation	Aquila		Tycho2	5173-01471-1
Gaia DR2	34913920128		HD	191722

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20116-0609	BU 833	AD	2002	3	353	43.6	8.35	12.20	F5	D	201136.08-060859.8
20116-0609	BU 833	AD	2013	5	352	44.1	8.35	13.89	F5		201136.08-060859.8
20116-0609	BU 833	AD	2015	6	352	43.6	8.35	13.89	F5		201136.08-060859.8

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