19579-0904 BU 1475AB

Coord 2000	19579-0904		Discov num	BU 1475		Comp	AB		Coord arcsec 2000	19 57 53.70 -09 03 30.3
Date first	1906		Date last	2015		Obs	19
Pa first	113		Pa last	113		P.A. Now (θ)	113°
Sep first	10.3		Sep last	10.4		Sep. Now (ρ)	10.4"
Mag pri	7.77		Mag sec	9.47		delta mag (ΔM)	1.7		Spectral class	K2 (yellow-orange)
Pri motion ra	-004		Sec motion ra	-004
Pri motion dec	-014		Sec motion dec	-014
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 57 54 -09 03 30	BU 1475 AB	2015	19	113	10.4	7.77	9.47	1.70		<===
Show			19 57 54 -09 03 30	HDO 155 AC	2015	20	119	115.1	7.77	8.70	0.93
Show			19 58 00 -09 04 27	BU 1475 CD	2015	9	163	4.9	8.70	11.10	2.40

Quadruple system
4 visible stars in this system

Precise pa	112.8		Precise sep	10.421		Constellation	Aquila		HIP	98246
Tycho2	5738-01042-1		Gaia DR2	4192181964040123264		HD	188938		BD	BD-09 5303
Distance	247.52		Distance ly	807.41

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579-0904	BU 1475	AB	2003	13	113	10.4	7.77	9.47	K2	D	195753.70-090330.3
19579-0904	BU 1475	AB	2010	14	113	10.4	7.77	9.47	K2	D	195753.70-090330.3
19579-0904	BU 1475	AB	2012	16	112	10.4	7.77	9.47	K2	D	195753.70-090330.3
19579-0904	BU 1475	AB	2015	17	113	10.4	7.77	9.47	K2		195753.70-090330.3

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