01072+3839 A 1516 AB

Coord 2000	01072+3839		Discov num	A  1516		Comp	AB		Coord arcsec 2000	01 07 09.16 +38 39 01.7
Date first	1907		Date last	2014		Obs	74
Pa first	335		Pa last	29.5		P.A. Now (θ)	91°
Sep first	0.2		Sep last	0.153		Sep. Now (ρ)	0.132"
Mag pri	8.60		Mag sec	8.29		delta mag (ΔM)	0.31		Spectral class	F8 (yellow-white)
Pri motion ra	+034		Sec motion ra
Pri motion dec	-015		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		54434	01 07 09 +38 39 02	A 1516 AB	2014	74	30	0.2	8.60	8.29	0.31	Y	<===
Show		54434	01 07 09 +38 39 02	STTA 11 AB,C	2014	33	164	59.3	7.62	8.77	1.15

Triple system
4 estimated visually detectable stars in this system

Constellation	Andromeda		SAO	54434		HIP	5249		Tycho2	2799-00984-1
Gaia DR2	370608402941216128		HD	6586		ADS	918		BD	BD+37 210
Distance	109.77		Distance ly	358.07

Period (P)	33.51y		Periastron (T)	1998.29y		Semi-major axis (a)	0.123a
Eccentricity (e)	0.241		Inclination (i)	3.3°		Longitude of periastron (ω)	208.4°
Node (Ω)	3.1°		Notes	n		Reference	Doc2017i
Equinox	2000		Last observation	2014		Grade	2	(1=Definitive, 9=Indet.)

label theta rho 2000 241.8 0.096 2001 258.4 0.099 2002 273.7 0.104 2003 287.6 0.109 2004 300.1 0.115 2005 311.4 0.121 2006 321.8 0.126 2007 331.2 0.132 2008 340.0 0.136 2009 348.2 0.140 2010 356.0 0.144 2011 3.4 0.147 2012 10.6 0.150 2013 17.5 0.151 2014 24.4 0.152 2015 31.2 0.153 2016 37.9 0.152 2017 44.8 0.151 2018 51.7 0.150 2019 58.9 0.147 2020 66.3 0.144 2021 74.0 0.141 2022 82.2 0.136 2023 91.0 0.132 2024 100.4 0.127 2025 110.7 0.121 2026 121.9 0.116 2027 134.3 0.110 2028 148.0 0.105 2029 163.1 0.100 2030 179.6 0.096		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic