00596-0111 A  1903AB

Coord 2000	00596-0111		Discov num	A  1903		Comp	AB		Coord arcsec 2000	00 59 35.07 -01 11 30.5
Date first	1908		Date last	2019		Obs	78
Pa first	87		Pa last	35		P.A. Now (θ)	33.5°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.41"
Mag pri	9.28		Mag sec	9.94		delta mag (ΔM)	0.66		Spectral class	G5 (yellow)
Pri motion ra	+095		Sec motion ra
Pri motion dec	+084		Sec motion dec
Notes	N O (See Notes, Orbital solution)

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

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00596-0111	A 1903	AB	1908	2019	78	34	0.4	9.28	9.94	0.66	Y	<===
Show			00596-0111	A 1903	AB,C	1908	2014	12	32	6.3	8.78	13.70	4.92

Triple system
4 visible stars in this system

Precise pa	34.6		Precise sep	0.403		Constellation	Cetus		HIP	4641
Tycho2	4674-01022-1		Gaia DR2	68670382720		HD	5805		ADS	822
BD	BD-01 125		Distance	84.6		Distance ly	275.97		last precise pa	34.6
last precise sep	0.403

Period (P)	143.4y		Periastron (T)	1957y		Semi-major axis (a)	0.354a
Eccentricity (e)	0.225		Inclination (i)	20.4°		Longitude of periastron (ω)	84°
Node (Ω)	145°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2008

label rho theta 2000 0.385 357.3 2001 0.387 359.2 2002 0.389 1.1 2003 0.391 3.0 2004 0.392 4.9 2005 0.394 6.7 2006 0.395 8.6 2007 0.396 10.4 2008 0.398 12.2 2009 0.399 14.1 2010 0.400 15.9 2011 0.401 17.6 2012 0.402 19.4 2013 0.402 21.2 2014 0.403 23.0 2015 0.404 24.7 2016 0.404 26.5 2017 0.405 28.3 2018 0.405 30.0 2019 0.406 31.8 2020 0.406 33.5 2021 0.406 35.2 2022 0.407 37.0 2023 0.407 38.7 2024 0.407 40.4 2025 0.407 42.2 2026 0.407 43.9 2027 0.407 45.7 2028 0.407 47.4 2029 0.407 49.1 2030 0.407 50.9 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
00596-0111	A 1903	AB	2003	63	4	0.4	9.28	9.94	G5	NOD	005935.07-011130.5
00596-0111	A 1903	AB	2008	66	13	0.4	9.28	9.94	G5	NOD	005935.07-011130.5
00596-0111	A 1903	AB	2014	71	25	0.4	9.28	9.94	G5	NO	005935.07-011130.5
00596-0111	A 1903	AB	2019	78	35	0.4	9.28	9.94	G5	NO	005935.07-011130.5

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