00366+5609 A   914

Coord 2000	00366+5609		Discov num	A   914		Comp			Coord arcsec 2000	00 36 33.43 +56 08 32.0
Date first	1905		Date last	2007		Obs	33
Pa first	77		Pa last	23		P.A. Now (θ)	22.3°
Sep first	0.3		Sep last	0.4		Sep. Now (ρ)	0.46"
Mag pri	8.42		Mag sec	9.29		delta mag (ΔM)	0.87		Spectral class	F5 (yellow-white)
Pri motion ra	-031		Sec motion ra	-031
Pri motion dec	-005		Sec motion dec	-005
Notes	O (Orbital solution)

This double is physical.

Constellation	Cassiopeia		SAO	21557		HIP	2886		Tycho2	3658-00454-1
HD	3304		ADS	504		BD	BD+55 117		Distance	209.64
Distance ly	683.85		last precise pa	22.6		last precise sep	0.44

Period (P)	1240.2y	± 79.4	Periastron (T)	2015.1y	± 80.1	Semi-major axis (a)	0.88a	± 0.084
Eccentricity (e)	0.477	± 0.043	Inclination (i)	109.4°	± 2.1	Longitude of periastron (ω)	4.4°	± 3.3
Node (Ω)	24.7°	± 2.9	Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2005

label rho theta 2000 0.459 27.9 2001 0.459 27.6 2002 0.460 27.3 2003 0.460 27.0 2004 0.460 26.7 2005 0.461 26.4 2006 0.461 26.1 2007 0.461 25.7 2008 0.461 25.4 2009 0.461 25.1 2010 0.461 24.8 2011 0.461 24.5 2012 0.460 24.2 2013 0.460 23.9 2014 0.460 23.6 2015 0.459 23.3 2016 0.459 23.0 2017 0.458 22.6 2018 0.457 22.3 2019 0.457 22.0 2020 0.456 21.7 2021 0.455 21.4 2022 0.454 21.1 2023 0.453 20.7 2024 0.452 20.4 2025 0.451 20.1 2026 0.449 19.8 2027 0.448 19.5 2028 0.447 19.1 2029 0.445 18.8 2030 0.444 18.5 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
00366+5609	A 914		2005	32	25	0.5	8.42	9.29	F5	D	003633.43+560832.0
00366+5609	A 914		2007	33	23	0.4	8.42	9.29	F5	D	003633.43+560832.0

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