01467+3310 STF 158AB

Coord 2000	01467+3310		Discov num	STF 158		Comp	AB		Coord arcsec 2000	01 46 44.07 +33 09 45.5
Date first	1828		Date last	2016		Obs	122
Pa first	239		Pa last	272		P.A. Now (θ)	272°
Sep first	1.0		Sep last	2.2		Sep. Now (ρ)	2.2"
Mag pri	8.96		Mag sec	9.40		delta mag (ΔM)	0.44		Spectral class	F8 (yellow-white)
Pri motion ra	-026		Sec motion ra	-026
Pri motion dec	-021		Sec motion dec	-021
Notes	O (Orbital solution)

This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		54973	01467+3310	STF 158	AB	1828	2016	122	272	2.2	8.96	9.40	0.44	Y	<===
Show		54973	01467+3310	FOX 120	AC	1912	2015	5	258	52.0	8.96	15.23	6.27
Show		54973	01467+3310	FOX 120	AD	1912	2015	7	69	100.9	8.96	12.82	3.86

Quadruple system
4 visible stars in this system

Precise pa	271.5		Precise sep	2.23		Constellation	Triangulum		SAO	54973
HIP	8283		Tycho2	2298-01446-1		HD	10828		ADS	1406
BD	BD+32 318		Distance	104.06		Distance ly	339.44		last precise pa	271.5
last precise sep	2.23

Period (P)	22.39c	± 99.99	Periastron (T)	2089.7y	± 18.6	Semi-major axis (a)	5.351a	± 0.048
Eccentricity (e)	0.764	± 0.058	Inclination (i)	78.8°	± 9.3	Longitude of periastron (ω)	65°	± 270
Node (Ω)	278°	± 40	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2008

label rho theta 2000 2.109 270.7 2001 2.105 270.9 2002 2.101 271.0 2003 2.096 271.1 2004 2.092 271.3 2005 2.087 271.4 2006 2.082 271.5 2007 2.077 271.7 2008 2.072 271.8 2009 2.067 271.9 2010 2.061 272.1 2011 2.055 272.2 2012 2.049 272.3 2013 2.043 272.5 2014 2.037 272.6 2015 2.030 272.8 2016 2.023 272.9 2017 2.016 273.0 2018 2.009 273.2 2019 2.002 273.3 2020 1.994 273.5 2021 1.986 273.6 2022 1.978 273.8 2023 1.970 273.9 2024 1.961 274.1 2025 1.952 274.2 2026 1.943 274.4 2027 1.934 274.5 2028 1.924 274.7 2029 1.914 274.8 2030 1.904 275.0 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
01467+3310	STF 158	AB	1999	112	270	2.1	8.96	9.40	F8	D	014644.07+330945.5
01467+3310	STF 158	AB	2007	115	269	2.2	8.96	9.40	F8	D	014644.07+330945.5
01467+3310	STF 158	AB	2008	116	269	2.2	8.96	9.40	F8	D	014644.07+330945.5
01467+3310	STF 158	AB	2010	117	271	2.1	8.96	9.40	F8	OD	014644.07+330945.5
01467+3310	STF 158	AB	2012	119	270	2.1	8.96	9.40	F8	OD	014644.07+330945.5
01467+3310	STF 158	AB	2013	120	269	2.2	8.96	9.40	F8	O	014644.07+330945.5
01467+3310	STF 158	AB	2016	122	272	2.2	8.96	9.40	F8	O	014644.07+330945.5

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