04007+2023 TOK 363Aa,Ab

Coord 2000	04007+2023		Discov num	TOK 363		Comp	Aa,Ab		Coord arcsec 2000	04 00 39.54 +20 22 49.7
Date first	2013		Date last	2020		Obs	12
Pa first	94		Pa last	196		P.A. Now (θ)	194.4°
Sep first	0.1		Sep last	0.1		Sep. Now (ρ)	0.14"
Mag pri	8.73		Mag sec	13.90		delta mag (ΔM)	5.17		Spectral class	G4V (yellow)
Pri motion ra	+147		Sec motion ra
Pri motion dec	-060		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		76384	04 00 40 +20 22 50	TOK 363 Aa,Ab	2020	12	194	0.1	8.73	13.90	5.17	Y	<===
Show		76384	04 00 40 +20 22 50	RAO 50 AB	2015	2	308	6.2	8.73	15.00	6.27

Triple system
2 visible stars in this system

Precise pa	196.3		Precise sep	0.14		Constellation	Taurus		SAO	76384
HIP	18719		Tycho2	1258-00341-1		Gaia DR2	50652649563649536		BD	BD+19 641
Distance	62.15		Distance ly	202.73		last precise pa	196.3		last precise sep	0.14

Period (P)	16.761y	± 0.115	Periastron (T)	2010.259y	± 0.191	Semi-major axis (a)	0.1141a	± 0.003
Eccentricity (e)	0.311	± 0.014	Inclination (i)	31.5°	± 4.4	Longitude of periastron (ω)	146.5°	± 4.2
Node (Ω)	198.2°	± 3	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label rho theta 2000 0.130 146.2 2001 0.138 158.7 2002 0.144 170.1 2003 0.145 180.9 2004 0.143 191.8 2005 0.135 203.4 2006 0.123 217.0 2007 0.106 234.2 2008 0.087 258.8 2009 0.074 294.8 2010 0.073 338.1 2011 0.081 16.2 2012 0.088 47.7 2013 0.094 75.1 2014 0.102 98.9 2015 0.112 118.8 2016 0.122 135.4 2017 0.132 149.3 2018 0.140 161.5 2019 0.144 172.7 2020 0.145 183.5 2021 0.141 194.4 2022 0.133 206.4 2023 0.119 220.7 2024 0.102 239.3 2025 0.083 266.2 2026 0.072 305.1 2027 0.075 348.0 2028 0.083 24.2 2029 0.089 54.6 2030 0.096 81.2		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
04007+2023	TOK 363	Aa,Ab	2013	2	96	0.1	8.73	13.90			040039.54+202249.7
04007+2023	TOK 363	Aa,Ab	2014	4	113	0.1	8.73	13.90	G4V		040039.54+202249.7
04007+2023	TOK 363	Aa,Ab	2015	5	134	0.1	8.73	13.90	G4V		040039.54+202249.7
04007+2023	TOK 363	Aa,Ab	2016	8	149	0.1	8.73	13.90	G4V	N	040039.54+202249.7
04007+2023	TOK 363	Aa,Ab	2018	10	175	0.1	8.73	13.90	G4V	NO	040039.54+202249.7
04007+2023	TOK 363	Aa,Ab	2019	11	186	0.1	8.73	13.90	G4V	NO	040039.54+202249.7

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