13437-4204 FIN 353 AB

Coord 2000	13437-4204		Discov num	FIN 353		Comp	AB		Coord arcsec 2000	13 43 40.10 -42 04 03.0
Date first	1959		Date last	2017		Obs	19
Pa first	39		Pa last	56.8		P.A. Now (θ)	56.8°
Sep first	0.1		Sep last	0.032		Sep. Now (ρ)	0.032"
Mag pri	6.32		Mag sec	7.49		delta mag (ΔM)	1.17		Spectral class	B8III (blue-white)
Pri motion ra	-016		Sec motion ra
Pri motion dec	-005		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		224365	13 43 40 -42 04 03	FIN 353 AB	2017	19	57	0.0	6.32	7.49	1.17	Y	<===
Show	HD 119361	224365	13 43 40 -42 04 03	RST 1741 AB,C	2021	18	77	0.9	5.97	9.15	3.18

Triple system
4 estimated visually detectable stars in this system

Constellation	Centaurus		SAO	224365		HIP	66984		Tycho2	7797-02742-1
Gaia DR2	6112257264201415552		HD	119361		HR	5157		GC	18546
CD	CD-41 8089		CP	CP-41 6439		Distance	613.5		Distance ly	2001.24

Period (P)	130y		Periastron (T)	2020.439y		Semi-major axis (a)	0.116a
Eccentricity (e)	0.723		Inclination (i)	87°		Longitude of periastron (ω)	112.2°
Node (Ω)	50.7°		Notes	n		Reference	Tok2018e
Equinox	2000		Last observation	2018		Grade	4	(1=Definitive, 9=Indet.)

label theta rho 2000 49.0 0.111 2001 49.1 0.110 2002 49.3 0.108 2003 49.4 0.106 2004 49.5 0.103 2005 49.6 0.101 2006 49.8 0.098 2007 49.9 0.095 2008 50.1 0.091 2009 50.2 0.087 2010 50.4 0.083 2011 50.6 0.078 2012 50.9 0.072 2013 51.1 0.066 2014 51.5 0.059 2015 51.9 0.051 2016 52.5 0.042 2017 53.5 0.032 2018 55.6 0.020 2019 64.6 0.007 2020 216.0 0.007 2021 226.6 0.019 2022 228.9 0.030 2023 230.0 0.038 2024 230.8 0.044 2025 231.4 0.049 2026 232.0 0.052 2027 232.5 0.053 2028 232.9 0.054 2029 233.4 0.055 2030 233.8 0.054		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic