01418+4237 MCY   2

Coord 2000	01418+4237		Discov num	MCY   2		Comp			Coord arcsec 2000	01 41 47.14 +42 36 48.1
Date first	1982		Date last	2002		Obs	7
Pa first	35		Pa last	212		P.A. Now (θ)	220.7°
Sep first	0.6		Sep last	0.8		Sep. Now (ρ)	0.42"
Mag pri	4.95		Mag sec	11.00		delta mag (ΔM)	6.05		Spectral class	G1.5V (yellow)
Pri motion ra	+792		Sec motion ra
Pri motion dec	-181		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Constellation	Andromeda		SAO	37434		HIP	7918		Tycho2	2823-02455-1
HD	10307		HR	483		GL	Gl 67		BD	BD+41 328
Distance	12.74		Distance ly	41.56		last precise pa	212		last precise sep	0.75

Period (P)	18.12y		Periastron (T)	1993.63y		Semi-major axis (a)	0.631a
Eccentricity (e)	0.434		Inclination (i)	98.8°		Longitude of periastron (ω)	144.3°
Node (Ω)	205°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2002

label rho theta 2000 0.436 219.9 2001 0.569 215.6 2002 0.679 212.8 2003 0.762 210.7 2004 0.815 208.9 2005 0.833 207.3 2006 0.813 205.7 2007 0.749 204.0 2008 0.632 201.7 2009 0.454 198.0 2010 0.213 187.0 2011 0.111 55.7 2012 0.335 28.5 2013 0.383 20.7 2014 0.287 11.2 2015 0.148 345.4 2016 0.127 263.8 2017 0.268 230.4 2018 0.418 220.7 2019 0.554 216.0 2020 0.667 213.1 2021 0.754 210.9 2022 0.810 209.1 2023 0.833 207.5 2024 0.818 205.9 2025 0.759 204.2 2026 0.649 202.0 2027 0.479 198.6 2028 0.244 189.5 2029 0.084 69.8 2030 0.316 29.7 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
01418+4237	MCY 2		1995	6	190	0.3	4.95	11.00	G1.5V	NO	014146.52+423649.7
01418+4237	MCY 2		2002	7	212	0.8	4.95	11.00	G1.5V	NOD	014146.52+423649.7

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