10370-0850 A 556 AB (HD 91962)

Coord 2000	10370-0850		Discov num	A   556		Comp	AB		Coord arcsec 2000	10 37 00.02 -08 50 23.6
Date first	1903		Date last	2021		Obs	75
Pa first	54		Pa last	216.4		P.A. Now (θ)	216.4°
Sep first	1.3		Sep last	0.916		Sep. Now (ρ)	0.916"
Mag pri	7.10		Mag sec	9.80		delta mag (ΔM)	2.7		Spectral class	G0V+K5V (yellow/yellow-orange)
Pri motion ra	-094		Sec motion ra	-101
Pri motion dec	-049		Sec motion dec	-074
Notes	N O (See Notes, Orbital solution)

rPM=0.207 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		137678	10 37 00 -08 50 24	TOK 44 Aa,Ab	2021	33	62	0.1	7.19	10.05	2.86	Y
Show	HD 91962	137678	10 37 00 -08 50 24	A 556 AB	2021	75	216	0.9	7.10	9.80	2.70	Y	<===

Triple system
2 estimated visually detectable stars in this system

Name	HD 91962		Constellation	Sextans		SAO	137678		HIP	51966
Tycho2	5492-00987-1		Gaia DR2	3762120497774235648		HD	91962		GC	14596
ADS	7854		BD	BD-08 2963		Distance	39.86		Distance ly	130.02

Period (P)	205y		Periastron (T)	2048.6y	± 2.5	Semi-major axis (a)	1.334a	± 0.016
Eccentricity (e)	0.301	± 0.016	Inclination (i)	54.2°	± 0.8	Longitude of periastron (ω)	219.7°	± 1.3
Node (Ω)	63.2°	± 2	Notes	n		Reference	Tok2015b
Equinox	2000		Last observation	2015		Grade	4	(1=Definitive, 9=Indet.)

label theta rho 2000 171.4 0.858 2001 173.8 0.859 2002 176.1 0.861 2003 178.5 0.863 2004 180.8 0.866 2005 183.1 0.870 2006 185.4 0.875 2007 187.7 0.880 2008 189.9 0.885 2009 192.1 0.892 2010 194.3 0.898 2011 196.5 0.905 2012 198.6 0.912 2013 200.7 0.920 2014 202.7 0.927 2015 204.7 0.935 2016 206.7 0.943 2017 208.6 0.950 2018 210.5 0.958 2019 212.4 0.965 2020 214.3 0.972 2021 216.1 0.979 2022 217.9 0.985 2023 219.7 0.991 2024 221.5 0.996 2025 223.2 1.001 2026 225.0 1.005 2027 226.7 1.008 2028 228.4 1.010 2029 230.1 1.012 2030 231.8 1.012		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic