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)	315.7°
Sep first	2.0		Sep last	4.6		Sep. Now (ρ)	4.95"
Mag pri	5.00		Mag sec	7.74		delta mag (ΔM)	2.74		Spectral class	F6IV (yellow-white)
Pri motion ra	+411		Sec motion ra	+383
Pri motion dec	+127		Sec motion dec	+087
Notes	N O (See Notes, Orbital solution)

rPM=0.114 (< 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	316	5.0	5.00	7.74	2.74	Y	<===
Show			01158-6853	HJ 3423	A,CD	1874	2010	10	310	319.2	5.00	7.85	2.85
Show			01158-6853	I 27	CD	1895	2018	79	345	1.1	7.84	8.44	0.60	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)	857y		Periastron (T)	1763.5y		Semi-major axis (a)	5.96a
Eccentricity (e)	0.384		Inclination (i)	127.1°		Longitude of periastron (ω)	284.9°
Node (Ω)	10.3°		Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	1999

label rho theta 2000 5.023 322.0 2001 5.019 321.7 2002 5.016 321.4 2003 5.012 321.0 2004 5.008 320.7 2005 5.004 320.4 2006 5.000 320.0 2007 4.997 319.7 2008 4.993 319.4 2009 4.989 319.0 2010 4.985 318.7 2011 4.981 318.4 2012 4.978 318.0 2013 4.974 317.7 2014 4.970 317.4 2015 4.967 317.0 2016 4.963 316.7 2017 4.959 316.4 2018 4.956 316.0 2019 4.952 315.7 2020 4.949 315.3 2021 4.945 315.0 2022 4.942 314.7 2023 4.938 314.3 2024 4.935 314.0 2025 4.931 313.6 2026 4.928 313.3 2027 4.925 313.0 2028 4.921 312.6 2029 4.918 312.3 2030 4.915 311.9 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

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