00469+4339 HDS 102

Coord 2000	00469+4339		Discov num	HDS 102		Comp			Coord arcsec 2000	00 46 56.67 +43 38 47.2
Date first	1991		Date last	2010		Obs	12
Pa first	173		Pa last	90		P.A. Now (θ)	237.9°
Sep first	0.2		Sep last	0.1		Sep. Now (ρ)	0.15"
Mag pri	10.12		Mag sec	11.65		delta mag (ΔM)	1.53		Spectral class	K2 (yellow-orange)
Pri motion ra	-002		Sec motion ra
Pri motion dec	-297		Sec motion dec
Notes	O (Orbital solution)

Visually invisible, K-band or other infrared star This double is physical.

Precise pa	89.6		Precise sep	0.134		Constellation	Andromeda		HIP	3669
Tycho2	2809-00167-1		Gaia DR2	8700583936		BD	BD+42 170		Distance	64.68
Distance ly	210.99		last precise pa	89.6		last precise sep	0.134

Period (P)	83.89y		Periastron (T)	2016.7y		Semi-major axis (a)	0.336a
Eccentricity (e)	0.783		Inclination (i)	113.4°		Longitude of periastron (ω)	61.3°
Node (Ω)	51.3°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2010

label rho theta 2000 0.175 148.0 2001 0.169 144.0 2002 0.163 139.6 2003 0.157 134.9 2004 0.152 129.9 2005 0.148 124.6 2006 0.144 118.9 2007 0.141 113.0 2008 0.139 106.9 2009 0.137 100.6 2010 0.135 94.1 2011 0.133 87.4 2012 0.131 80.6 2013 0.127 73.5 2014 0.119 65.6 2015 0.104 56.2 2016 0.074 41.2 2017 0.033 349.3 2018 0.060 263.1 2019 0.109 245.1 2020 0.151 237.9 2021 0.186 233.7 2022 0.215 230.7 2023 0.240 228.4 2024 0.261 226.4 2025 0.280 224.8 2026 0.296 223.4 2027 0.311 222.1 2028 0.324 220.9 2029 0.335 219.8 2030 0.346 218.8 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
00469+4339	HDS 102		2001	4	140	0.2	10.12	11.65	K2	OD	004656.67+433849.9
00469+4339	HDS 102		2004	5	126	0.2	10.12	11.65	K2	OD	004656.67+433849.9
00469+4339	HDS 102		2007	8	107	0.1	10.12	11.65	K2	OD	004656.67+433849.9
00469+4339	HDS 102		2008	9	102	0.1	10.12	11.65	K2	OD	004656.67+433849.9
00469+4339	HDS 102		2010	10	94	0.1	10.12	11.65	K2	OD	004656.67+433849.9

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