01334-4354 HDS 205

Coord 2000	01334-4354		Discov num	HDS 205		Comp			Coord arcsec 2000	01 33 26.53 -43 54 05.1
Date first	1991		Date last	2019		Obs	24
Pa first	185		Pa last	37		P.A. Now (θ)	44.1°
Sep first	0.1		Sep last	0.1		Sep. Now (ρ)	0.09"
Mag pri	8.39		Mag sec	9.22		delta mag (ΔM)	0.83		Spectral class	K0/K1V (yellow-orange)
Pri motion ra	+224		Sec motion ra
Pri motion dec	+064		Sec motion dec
Notes	O (Orbital solution)

Visually invisible, K-band or other infrared star This double is physical.

Precise pa	37		Precise sep	0.093		Constellation	Phoenix		SAO	215556
HIP	7254		Tycho2	7548-00451-1		HD	9619		GL	NN 3099
CD	CD-44 434		CP	CP-44 187		Distance	38.08		Distance ly	124.22
last precise pa	37		last precise sep	0.093

Period (P)	7.766y	± 0.041	Periastron (T)	2011.025y	± 0.014	Semi-major axis (a)	0.1308a	± 0.0013
Eccentricity (e)	0.493	± 0.012	Inclination (i)	65.5°	± 0.6	Longitude of periastron (ω)	115.5°	± 1.1
Node (Ω)	198°	± 0.8	Note			Grade	2	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label rho theta 2000 0.131 169.1 2001 0.148 183.3 2002 0.127 197.6 2003 0.033 258.7 2004 0.091 28.0 2005 0.079 65.7 2006 0.077 117.4 2007 0.106 153.6 2008 0.138 172.8 2009 0.148 186.4 2010 0.112 202.2 2011 0.035 331.6 2012 0.092 36.0 2013 0.075 77.0 2014 0.082 128.1 2015 0.115 159.1 2016 0.143 176.2 2017 0.145 189.5 2018 0.093 208.6 2019 0.061 3.0 2020 0.089 44.1 2021 0.073 89.4 2022 0.088 137.3 2023 0.122 163.8 2024 0.146 179.4 2025 0.139 192.8 2026 0.068 219.2 2027 0.080 16.5 2028 0.085 53.0 2029 0.073 102.0 2030 0.096 145.2 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01334-4354	HDS 205		1991	1	185	0.1	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2008	4	184	0.1	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2010	5	343	0.0	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2012	11	74	0.1	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2015	14	159	0.1	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2017	19	201	0.1	8.39	9.22	K0/K1V		013326.53-435405.1
01334-4354	HDS 205		2018	22	357	0.1	8.39	9.22	K0/K1V	O	013326.53-435405.1
01334-4354	HDS 205		2019	24	37	0.1	8.39	9.22	K0/K1V	O	013326.53-435405.1

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