15500-0355 FGL   3AD

Coord 2000	15500-0355		Discov num	FGL   3		Comp	AD		Coord arcsec 2000	15 49 57.68 -03 55 15.7
Date first	2001		Date last	2018		Obs	2
Pa first	300		Pa last	291		P.A. Now (θ)	291°
Sep first	1.5		Sep last	0.5		Sep. Now (ρ)	0.5"
Mag pri	6.90		Mag sec			delta mag (ΔM)			Spectral class	B9 (blue-white)
Pri motion ra	-032		Sec motion ra
Pri motion dec	-010		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			15500-0355	RST4553	AB	1938	2015	6	312	7.6	6.90	12.50	5.60
Show			15500-0355	RST4553	AC	1996	1999	2	310	8.1	6.90	13.00	6.10
Show			15500-0355	FGL 3	AD	2001	2018	2	291	0.5	6.90				<===
Show			15500-0355	RST4553	BC	1938	2015	3	303	1.3	12.50	13.00	0.50

Quadruple system
4 visible stars in this system

Precise pa	290.8		Precise sep	0.467		Constellation	Libra		HIP	77542
Tycho2	5026-00042-1		Gaia DR2	53527026176		HD	141569		BD	BD-03 3833
Distance	116.14		Distance ly	378.85

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15500-0355	FGL 3	AD	2001	1	300	1.5	6.90		B9	N	154957.68-035515.7
15500-0355	FGL 3	AD	2018	2	291	0.5	6.90		B9	N	154957.68-035515.7

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