20161-0744 HO  589AC

Coord 2000	20161-0744		Discov num	HO  589		Comp	AC		Coord arcsec 2000	20 16 08.43 -07 43 55.8
Date first	1892		Date last	2015		Obs	11
Pa first	201		Pa last	200		P.A. Now (θ)	200°
Sep first	55.7		Sep last	55.3		Sep. Now (ρ)	55.3"
Mag pri	7.80		Mag sec	12.37		delta mag (ΔM)	4.57		Spectral class	B9 (blue-white)
Pri motion ra	-004		Sec motion ra	-004
Pri motion dec	-021		Sec motion dec	-017
Notes

rPM=0.187 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 16 08 -07 43 56	HO 589 AB	2015	9	329	15.7	7.80	11.80	4.00
Show			20 16 08 -07 43 56	HO 589 AC	2015	11	200	55.3	7.80	12.37	4.57		<===

Triple system
3 visible stars in this system

Precise pa	200.4		Precise sep	55.26		Constellation	Aquila		HIP	99897
Tycho2	5740-02007-1		Gaia DR2	4215848333351581696		HD	192646		BD	BD-08 5295
Distance	392.16		Distance ly	1279.23

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20161-0744	HO 589	AC	1999	7	201	55.5	7.80	12.37	B9	D	201608.43-074355.8
20161-0744	HO 589	AC	2000	8	200	55.6	7.80	12.37	B9	D	201608.43-074355.8
20161-0744	HO 589	AC	2015	9	200	55.3	7.80	12.37	B9		201608.43-074355.8

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