01546+2049 MKT   3 (Bet Ari)

Coord 2000	01546+2049		Discov num	MKT   3		Comp			Coord arcsec 2000	01 54 38.35 +20 48 29.9
Date first	1988		Date last	2005		Obs	15
Pa first	93		Pa last	113		P.A. Now (θ)	113°
Sep first	0.1		Sep last	0.0		Sep. Now (ρ)	0"
Mag pri	2.60		Mag sec	5.20		delta mag (ΔM)	2.6		Spectral class	A5V (white)
Pri motion ra	+097		Sec motion ra
Pri motion dec	-108		Sec motion dec
Notes	N O R (See Notes, Orbital solution, Red magnitudes)

This double is physical.

Name	Bet Ari		Constellation	Aries		SAO	75012		HIP	8903
HD	11636		HR	553		GC	2309		GL	Gl 80
BD	BD+20 306		Bayer	Beta Arietis		Bayer name	Bet Ari		Flamsteed	6 Arietis
Flamsteed name	6 Ari		Distance	17.99		Distance ly	58.68		last precise pa	112.7
last precise sep	0.027

Period (P)	106.99442d	± 0.00069	Periastron (T)	44809.1016d (1981.559y)	± 0.0066	Semi-major axis (a)	36m	± 0.54
Eccentricity (e)	0.8801	± 0.0008	Inclination (i)	47.5°	± 0.54	Longitude of periastron (ω)	204.9°	± 0.33
Node (Ω)	83.3°	± 0.27	Note			Grade	2	(1=Definitive, 9=Indet.)
Equinox			Last observation

label rho theta 2000-01-01 0.015 145.5 2001-01-01 0.063 95.8 2002-01-01 0.046 113.5 2003-01-01 0.049 87.8 2004-01-01 0.061 104.7 2005-01-01 0.009 47.1 2006-01-01 0.064 98.3 2007-01-01 0.037 119.4 2008-01-01 0.056 91.4 2009-01-01 0.057 107.6 2010-01-01 0.031 78.0 2011-01-01 0.064 100.8 2012-01-01 0.024 130.8 2013-01-01 0.061 94.4 2014-01-01 0.051 111.2 2015-01-01 0.044 85.3 2016-01-01 0.063 103.3 2017-01-01 0.007 192.0 2018-01-01 0.064 97.0 2019-01-01 0.042 115.9 2020-01-01 0.053 89.6 2021-01-01 0.059 106.0 2022-01-01 0.021 70.1 2023-01-01 0.065 99.5 2024-01-01 0.031 123.6 2025-01-01 0.059 92.9 2026-01-01 0.054 109.2 2027-01-01 0.038 82.1 2028-01-01 0.064 101.9 2029-01-01 0.016 143.1 2030-01-01 0.063 95.6 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
01546+2049	MKT 3		1988	14	113	0.0	2.64		A5V	NO	015438.35+204829.9
01546+2049	MKT 3		2005	15	113	0.0	2.64		A5V	NO	015438.35+204829.9

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