00055+3406 HU 1201AB

Coord 2000	00055+3406		Discov num	HU 1201		Comp	AB		Coord arcsec 2000	00 05 29.06 +34 06 20.4
Date first	1904		Date last	2012		Obs	35
Pa first	310		Pa last	313		P.A. Now (θ)	305.6°
Sep first	0.2		Sep last	0.2		Sep. Now (ρ)	0.09"
Mag pri	8.20		Mag sec	9.76		delta mag (ΔM)	1.56		Spectral class	F8 (yellow-white)
Pri motion ra	-015		Sec motion ra
Pri motion dec	+026		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		53635	00 05 29 +34 06 20	HU 1201 AB	2012	35	306	0.1	8.20	9.76	1.56	Y	<===
Show		53635	00 05 29 +34 06 20	HO 490 AC	2015	12	163	25.3	8.20	13.40	5.20

Triple system
3 visible stars in this system

Precise pa	312.7		Precise sep	0.158		Constellation	Andromeda		SAO	53635
HIP	461		Tycho2	2267-01706-1		Gaia DR2	2874421366954299904		HD	39
ADS	51		BD	BD+33 4832		Distance	97.09		Distance ly	316.71
last precise pa	312.7		last precise sep	0.158

Period (P)	47.06y		Periastron (T)	1983.89y		Semi-major axis (a)	0.138a
Eccentricity (e)	0.651		Inclination (i)	91.5°		Longitude of periastron (ω)	23.9°
Node (Ω)	128.1°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	1998

label rho theta 2000 0.210 307.9 2001 0.212 307.8 2002 0.214 307.8 2003 0.215 307.7 2004 0.215 307.7 2005 0.214 307.6 2006 0.212 307.5 2007 0.210 307.5 2008 0.206 307.4 2009 0.202 307.3 2010 0.197 307.3 2011 0.191 307.2 2012 0.184 307.1 2013 0.177 307.0 2014 0.168 306.9 2015 0.159 306.8 2016 0.149 306.7 2017 0.139 306.5 2018 0.127 306.4 2019 0.115 306.2 2020 0.102 305.9 2021 0.088 305.6 2022 0.073 305.2 2023 0.057 304.5 2024 0.041 303.2 2025 0.024 300.3 2026 0.007 281.6 2027 0.012 140.2 2028 0.029 132.1 2029 0.044 129.8 2030 0.051 128.6		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
00055+3406	HU 1201	AB	2005	29	305	0.2	8.20	9.76	F8	NOD	000529.06+340620.4
00055+3406	HU 1201	AB	2007	30	318	0.2	8.20	9.76	F8	NOD	000529.06+340620.4
00055+3406	HU 1201	AB	2010	31	304	0.2	8.20	9.76	F8	NOD	000529.06+340620.4

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