01158-6853 HJ 3423AB (Kap Tuc)

Coord 2000	01158-6853		Discov num	HJ 3423		Comp	AB		Coord arcsec 2000	01 15 46.16 -68 52 33.3
Date first	1834		Date last	2017		Obs	78
Pa first	12		Pa last	315		P.A. Now (θ)	314.4°
Sep first	2.0		Sep last	4.6		Sep. Now (ρ)	4.64"
Mag pri	4.88		Mag sec	7.54		delta mag (ΔM)	2.66		Spectral class	F6IV+G5V (yellow-white/yellow)
Pri motion ra	+409		Sec motion ra	+386
Pri motion dec	+107		Sec motion dec	+082
Notes	N O (See Notes, Orbital solution)

Visually invisible, K-band or other infrared star rPM=0.08 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Kap Tuc	248346	01158-6853	HJ 3423	AB	1834	2017	78	314	4.6	4.88	7.54	2.66	Y	<===
Show		248346	01158-6853	HJ 3423	A,CD	1874	2010	10	310	319.2	4.88	7.23	2.35
Show		248342	01158-6853	I 27	CD	1895	2018	79	353	1.0	7.76	8.26	0.50	Y

Quadruple system
5 visible stars in this system

Precise pa	315.1		Precise sep	4.601		Name	Kap Tuc		Constellation	Tucana
SAO	248346		HIP	5896		Tycho2	9136-01759-2		HD	7788
HR	377		GC	1536		GL	Gl 55.3A		CD	CD-69 52
CP	CP-69 45		Bayer	Kappa Tucanae		Bayer name	Kap Tuc		Distance	20.96
Distance ly	68.37		last precise pa	315.1		last precise sep	4.601

Period (P)	523.4909y	± 218.7219	Periastron (T)	1762.3343y	± 81.2301	Semi-major axis (a)	4.63483a	± 0.92417
Eccentricity (e)	0.3212	± 0.29103	Inclination (i)	127.756°	± 7.048	Longitude of periastron (ω)	57.042°	± 44.643
Node (Ω)	176.117°	± 20.458	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox			Last observation	2013

label rho theta 2000 4.925 321.9 2001 4.912 321.5 2002 4.899 321.2 2003 4.886 320.8 2004 4.872 320.5 2005 4.859 320.1 2006 4.845 319.7 2007 4.831 319.4 2008 4.817 319.0 2009 4.803 318.6 2010 4.789 318.2 2011 4.775 317.9 2012 4.761 317.5 2013 4.747 317.1 2014 4.732 316.7 2015 4.718 316.4 2016 4.703 316.0 2017 4.688 315.6 2018 4.673 315.2 2019 4.659 314.8 2020 4.644 314.4 2021 4.629 314.0 2022 4.614 313.6 2023 4.598 313.2 2024 4.583 312.8 2025 4.568 312.4 2026 4.553 312.0 2027 4.537 311.6 2028 4.522 311.1 2029 4.507 310.7 2030 4.491 310.3 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
01158-6853	HJ 3423	AB	1999	70	322	5.0	5.00	7.74	F6IV	NOD	011545.50-685234.5
01158-6853	HJ 3423	AB	2009	72	319	4.8	5.00	7.74	F6IV	NOD	011545.50-685234.5
01158-6853	HJ 3423	AB	2013	74	316	4.7	5.00	7.74	F6IV	NOD	011545.50-685234.5
01158-6853	HJ 3423	AB	2016	76	316	4.8	5.00	7.74	F6IV	NO	011546.16-685233.3
01158-6853	HJ 3423	AB	2017	78	315	4.6	5.00	7.74	F6IV	NO	011546.16-685233.3

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