15227-4441 RIZ 13 Aa,Ab

15^h 22^m 40.89^s -44° 41' 22.5" P.A. 25.00 sep 0.1 mag 3.60,5.10 Sp B2IV-V dist. 156.99 pc (512.1 l.y.)

Coord 2000	15227-4441		Discov num	RIZ 13		Comp	Aa,Ab		Coord arcsec 2000	15 22 40.89 -44 41 22.5
Date first	2010		Date last	2010		Obs	1
Pa first	25		Pa last	24.6		P.A. Now (θ)	24.6°
Sep first	0.1		Sep last	0.051		Sep. Now (ρ)	0.051"
Mag pri	3.60		Mag sec	5.10		delta mag (ΔM)	1.5		Spectral class	B2IV-V (blue-white)
Pri motion ra	-023		Sec motion ra
Pri motion dec	-019		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

15227-4441 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		225712	15 22 41 -44 41 22	RIZ 13 Aa,Ab	2010	1	25	0.1	3.60	5.10	1.50		<===
Show		225712	15 22 41 -44 41 22	COP 2 AB	2021	47	24	0.2	3.56	5.04	1.48	Y
Show	Eps Lup	225712	15 22 41 -44 41 22	DUN 182 AC	2020	26	168	26.2	3.56	9.10	5.54
Show		225712	15 22 41 -44 41 22	RIZ 13 AD	2016	3	190	38.9	3.37	16.20	12.83

Quintuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Lupus		SAO	225712		HIP	75264		Tycho2	7847-02505-1
Gaia DR2	6000130236633865856		HD	136504		HR	5708		GC	20659
CD	CD-4410066		CP	CP-44 7342		Bayer	Epsilon Lupi		Bayer name	Eps Lup
Distance	156.99		Distance ly	512.1		Bayer greek	ε Lup