00203-3246 B  1025

Coord 2000	00203-3246		Discov num	B  1025		Comp			Coord arcsec 2000	00 20 18.56 -32 46 09.5
Date first	1928		Date last	2010		Obs	8
Pa first	163		Pa last	186		P.A. Now (θ)	359.9°
Sep first	0.4		Sep last	0.6		Sep. Now (ρ)	0.61"
Mag pri	8.83		Mag sec	10.64		delta mag (ΔM)	1.81		Spectral class	G6V (yellow)
Pri motion ra	+260		Sec motion ra
Pri motion dec	-087		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Precise pa	186.2		Precise sep	0.591		Constellation	Sculptor		SAO	192468
HIP	1625		Tycho2	6993-00130-1		Gaia DR2	98665292544		HD	1620
CD	CD-33 95		CP	CP-33 33		Distance	53.3		Distance ly	173.86
last precise pa	186.2		last precise sep	0.591

Period (P)	126.11y		Periastron (T)	1920.97y		Semi-major axis (a)	0.609a
Eccentricity (e)	0.544		Inclination (i)	109.1°		Longitude of periastron (ω)	283.5°
Node (Ω)	167.2°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2010

label rho theta 2000 0.516 16.7 2001 0.524 15.6 2002 0.532 14.5 2003 0.540 13.5 2004 0.547 12.6 2005 0.555 11.6 2006 0.561 10.7 2007 0.568 9.8 2008 0.574 8.9 2009 0.580 8.0 2010 0.585 7.1 2011 0.590 6.3 2012 0.594 5.5 2013 0.598 4.6 2014 0.601 3.8 2015 0.604 3.0 2016 0.606 2.2 2017 0.607 1.4 2018 0.608 0.7 2019 0.608 359.9 2020 0.607 359.1 2021 0.605 358.3 2022 0.603 357.5 2023 0.599 356.7 2024 0.594 355.9 2025 0.589 355.0 2026 0.582 354.2 2027 0.574 353.3 2028 0.564 352.4 2029 0.553 351.5 2030 0.540 350.5 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
00203-3246	B 1025		1991	6	210	0.5	8.83	10.64	G6V	N D	002018.38-324608.9
00203-3246	B 1025		2010	8	186	0.6	8.83	10.64	G6V	N D	002018.38-324608.9

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