01532+1526 BU  260

Coord 2000	01532+1526		Discov num	BU  260		Comp			Coord arcsec 2000	01 53 14.21 +15 26 00.3
Date first	1875		Date last	2018		Obs	68
Pa first	228		Pa last	261		P.A. Now (θ)	261.6°
Sep first	0.6		Sep last	1.1		Sep. Now (ρ)	1.09"
Mag pri	8.75		Mag sec	8.97		delta mag (ΔM)	0.22		Spectral class	F5 (yellow-white)
Pri motion ra	-011		Sec motion ra	-011
Pri motion dec	+023		Sec motion dec	+023
Notes	O (Orbital solution)

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

Precise pa	260.9		Precise sep	1.086		Constellation	Aries		SAO	92678
HIP	8810		Tycho2	1206-01563-1		Gaia DR2	201366016		HD	11487
ADS	1503		BD	BD+14 298		Distance	110.74		Distance ly	361.23
last precise pa	260.9		last precise sep	1.086

Period (P)	931.05y	± 31.3	Periastron (T)	2804.38y	± 2.36	Semi-major axis (a)	1.303a	± 0.1
Eccentricity (e)	0.262	± 0.007	Inclination (i)	71.8°	± 0.3	Longitude of periastron (ω)	119.9°	± 2.5
Node (Ω)	73°	± 0.2	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	1998

label rho theta 2000 1.102 258.3 2001 1.101 258.5 2002 1.101 258.6 2003 1.101 258.8 2004 1.100 258.9 2005 1.100 259.1 2006 1.099 259.3 2007 1.098 259.4 2008 1.098 259.6 2009 1.097 259.8 2010 1.096 259.9 2011 1.095 260.1 2012 1.094 260.3 2013 1.093 260.4 2014 1.092 260.6 2015 1.091 260.8 2016 1.090 260.9 2017 1.089 261.1 2018 1.087 261.3 2019 1.086 261.4 2020 1.085 261.6 2021 1.083 261.8 2022 1.082 261.9 2023 1.080 262.1 2024 1.078 262.3 2025 1.077 262.4 2026 1.075 262.6 2027 1.073 262.8 2028 1.071 262.9 2029 1.070 263.1 2030 1.068 263.3 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
01532+1526	BU 260		2006	55	259	1.1	8.75	8.97	F5	D	015314.21+152600.3
01532+1526	BU 260		2008	61	260	1.1	8.75	8.97	F5	D	015314.21+152600.3
01532+1526	BU 260		2013	62	261	1.0	8.75	8.97	F5	O	015314.21+152600.3
01532+1526	BU 260		2015	64	259	1.1	8.75	8.97	F5	O	015314.21+152600.3
01532+1526	BU 260		2018	66	261	1.1	8.75	8.97	F5	O	015314.21+152600.3

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