00135-3650 HDS  32

Coord 2000	00135-3650		Discov num	HDS  32		Comp			Coord arcsec 2000	00 13 29.10 -36 49 43.0
Date first	1991		Date last	2017		Obs	6
Pa first	282		Pa last	0		P.A. Now (θ)	354.3°
Sep first	0.2		Sep last	0.3		Sep. Now (ρ)	0.26"
Mag pri	11.35		Mag sec	11.93		delta mag (ΔM)	0.58		Spectral class	M0.5V (red)
Pri motion ra	-209		Sec motion ra
Pri motion dec	-319		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	0.2		Precise sep	0.26		Constellation	Sculptor		HIP	1083
Tycho2	6996-00077-3		CD	CD-37 34		Distance	28.18		Distance ly	91.92
last precise pa	0.2		last precise sep	0.26

Period (P)	15.34y	± 0.35	Periastron (T)	2009.45y	± 0.73	Semi-major axis (a)	0.229a	± 0.016
Eccentricity (e)	0.25	± 0.08	Inclination (i)	154.2°	± 11.3	Longitude of periastron (ω)	260.6°	± 38.4
Node (Ω)	88.2°	± 48.5	Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label rho theta 2000 0.259 37.0 2001 0.260 21.1 2002 0.258 5.1 2003 0.254 348.7 2004 0.249 331.8 2005 0.241 314.0 2006 0.229 294.6 2007 0.210 272.5 2008 0.184 244.9 2009 0.160 208.2 2010 0.158 164.3 2011 0.182 126.2 2012 0.212 98.5 2013 0.235 77.2 2014 0.250 59.0 2015 0.258 42.5 2016 0.260 26.5 2017 0.259 10.5 2018 0.256 354.3 2019 0.251 337.6 2020 0.244 320.2 2021 0.234 301.4 2022 0.217 280.4 2023 0.194 255.1 2024 0.167 221.9 2025 0.155 179.2 2026 0.172 137.9 2027 0.202 107.0 2028 0.229 83.9 2029 0.246 65.0 2030 0.256 48.0 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
00135-3650	HDS 32		1991	1	282	0.2	11.35	11.93			001329.23-364940.5
00135-3650	HDS 32		2014	2	226	0.3	11.35	11.93	M0.5V		001329.23-364940.5
00135-3650	HDS 32		2015	3	28	0.3	11.35	11.93	M0.5V		001329.23-364940.5
00135-3650	HDS 32		2017	6	0	0.3	11.35	11.93	M0.5V		001329.10-364943.0

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