01417-1119 STF 147

Coord 2000	01417-1119		Discov num	STF 147		Comp			Coord arcsec 2000	01 41 44.84 -11 19 28.9
Date first	1822		Date last	2019		Obs	171
Pa first	86		Pa last	307		P.A. Now (θ)	17.3°
Sep first	3.5		Sep last	0.1		Sep. Now (ρ)	0.07"
Mag pri	6.14		Mag sec	7.17		delta mag (ΔM)	1.03		Spectral class	F5V+F7V (yellow-white/yellow-white)
Pri motion ra	+043		Sec motion ra	+043
Pri motion dec	-417		Sec motion dec	-417
Notes	O (Orbital solution)

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

Precise pa	306.9		Precise sep	0.087		Constellation	Cetus		SAO	147962
HIP	7916		Tycho2	5279-02153-1		HD	10453		HR	492
ADS	1339		BD	BD-12 315		Distance	39.45		Distance ly	128.69
last precise pa	306.9		last precise sep	0.087

Period (P)	627y		Periastron (T)	2014.7y		Semi-major axis (a)	2.5a
Eccentricity (e)	0.919		Inclination (i)	82°		Longitude of periastron (ω)	174.7°
Node (Ω)	86.9°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2012

label rho theta 2000 0.659 94.9 2001 0.608 95.4 2002 0.555 96.0 2003 0.501 96.7 2004 0.446 97.6 2005 0.389 98.7 2006 0.330 100.3 2007 0.270 102.5 2008 0.208 106.0 2009 0.146 112.4 2010 0.086 128.3 2011 0.050 182.0 2012 0.083 238.0 2013 0.139 255.0 2014 0.185 262.5 2015 0.203 267.6 2016 0.187 272.6 2017 0.148 279.6 2018 0.102 292.6 2019 0.064 323.9 2020 0.066 17.3 2021 0.107 46.3 2022 0.157 58.1 2023 0.210 64.1 2024 0.262 67.7 2025 0.314 70.1 2026 0.365 71.8 2027 0.415 73.1 2028 0.463 74.1 2029 0.511 74.9 2030 0.558 75.6 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
01417-1119	STF 147		2002	156	93	0.5	6.14	7.17	F5V+F7V	LD	014144.84-111928.9
01417-1119	STF 147		2008	158	110	0.2	6.14	7.17	F5V+F7V	LD	014144.84-111928.9
01417-1119	STF 147		2009	163	120	0.1	6.14	7.17	F5V+F7V	LD	014144.84-111928.9
01417-1119	STF 147		2011	164	3	0.1	6.14	7.17	F5V F7V	LD	014144.84-111928.9
01417-1119	STF 147		2013	167	260	0.2	6.14	7.17	F5V F7V	CD	014144.84-111928.9
01417-1119	STF 147		2014	166	266	0.2	6.14	7.17	F5V+F7V	CD	014144.84-111928.9
01417-1119	STF 147		2018	169	289	0.1	6.14	7.17	F5V+F7V	O	014144.84-111928.9
01417-1119	STF 147		2019	171	307	0.1	6.14	7.17	F5V+F7V	O	014144.84-111928.9

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