20002+1454 HDS2847Aa,Ab

Coord 2000	20002+1454		Discov num	HDS2847		Comp	Aa,Ab		Coord arcsec 2000	20 00 12.79 +14 54 10.5
Date first	1991		Date last	2014		Obs	5
Pa first	55		Pa last	54		P.A. Now (θ)	54°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.4"
Mag pri	8.83		Mag sec	11.11		delta mag (ΔM)	2.28		Spectral class	F5V (yellow-white)
Pri motion ra	-020		Sec motion ra
Pri motion dec	-013		Sec motion dec
Notes	N (See Notes)

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		105524	20002+1454	HDS2847	Aa,Ab	1991	2014	5	54	0.4	8.83	11.11	2.28		<===
Show		105524	20002+1454	BPM1920	AB	1993	2001	3	33	76.3	8.59	15.65	7.06

Triple system
2 visible stars in this system

Precise pa	53.5		Precise sep	0.443		Constellation	Aquila		SAO	105524
HIP	98452		Tycho2	1083-00557-1		HD	189578		BD	BD+14 4125
Distance	173.01		Distance ly	564.36		last precise pa	53.5		last precise sep	0.443

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20002+1454	HDS2847	Aa,Ab	2003	3	56	0.5	8.83	11.11	F5V	D	200012.79+145410.5
20002+1454	HDS2847	Aa,Ab	2014	5	54	0.4	8.83	11.11	F5V	N	200012.79+145410.5

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