00243+5201 HU  506 (V746 Cas)

Coord 2000	00243+5201		Discov num	HU  506		Comp			Coord arcsec 2000	00 24 15.64 +52 01 11.7
Date first	1902		Date last	2007		Obs	40
Pa first	217		Pa last	94		P.A. Now (θ)	133.3°
Sep first	0.2		Sep last	0.1		Sep. Now (ρ)	0.1"
Mag pri	5.95		Mag sec	6.84		delta mag (ΔM)	0.89		Spectral class	B5IV (blue-white)
Pri motion ra	+017		Sec motion ra
Pri motion dec	-003		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Precise pa	94.3		Precise sep	0.11		Var name	V746 Cas		Constellation	Cassiopeia
SAO	21366		HIP	1921		HD	1976		HR	91
ADS	328		BD	BD+51 62		Distance	306.75		Distance ly	1000.62
last precise pa	94.3		last precise sep	0.11

Period (P)	169.29y		Periastron (T)	1955.06y		Semi-major axis (a)	0.214a
Eccentricity (e)	0.163		Inclination (i)	64.8°		Longitude of periastron (ω)	311.8°
Node (Ω)	30.1°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2004

label rho theta 2000 0.127 72.9 2001 0.123 75.5 2002 0.120 78.3 2003 0.117 81.2 2004 0.114 84.2 2005 0.112 87.4 2006 0.109 90.8 2007 0.107 94.3 2008 0.105 98.0 2009 0.103 101.7 2010 0.102 105.6 2011 0.101 109.6 2012 0.101 113.6 2013 0.101 117.6 2014 0.101 121.6 2015 0.102 125.6 2016 0.103 129.5 2017 0.104 133.3 2018 0.106 137.0 2019 0.108 140.5 2020 0.111 143.9 2021 0.113 147.2 2022 0.116 150.3 2023 0.120 153.2 2024 0.123 156.0 2025 0.126 158.7 2026 0.130 161.2 2027 0.134 163.5 2028 0.138 165.7 2029 0.142 167.8 2030 0.145 169.8 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
00243+5201	HU 506		2007	40	94	0.1	5.95	6.84	B5IV	NO	002415.64+520111.7

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