01450+5707 BU  453AB

Coord 2000	01450+5707		Discov num	BU  453		Comp	AB		Coord arcsec 2000	01 45 00.71 +57 07 00.3
Date first	1877		Date last	2016		Obs	48
Pa first	219		Pa last	111		P.A. Now (θ)	112.9°
Sep first	1.0		Sep last	0.8		Sep. Now (ρ)	0.82"
Mag pri	10.04		Mag sec	10.45		delta mag (ΔM)	0.41		Spectral class	G5 (yellow)
Pri motion ra	+000		Sec motion ra
Pri motion dec	+003		Sec motion dec
Notes	N O (See Notes, Orbital solution)

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

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		22585	01450+5707	BU 453	AB	1877	2016	48	113	0.8	10.04	10.45	0.41	Y	<===
Show		22585	01450+5707	FMR 22	AC	1994	2015	4	139	8.8	10.04	16.40	6.36

Triple system
3 visible stars in this system

Precise pa	110.7		Precise sep	0.78		Constellation	Cassiopeia		SAO	22585
HIP	8166		Gaia DR2	5172217600		HD	236857		ADS	1371
BD	BD+56 338		Distance	101.73		Distance ly	331.84		last precise pa	110.7
last precise sep	0.78

Period (P)	663.7y		Periastron (T)	1953.71y		Semi-major axis (a)	1.204a
Eccentricity (e)	0.689		Inclination (i)	32.5°		Longitude of periastron (ω)	336.5°
Node (Ω)	14.5°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2017

label rho theta 2000 0.657 95.1 2001 0.665 96.2 2002 0.673 97.3 2003 0.682 98.3 2004 0.690 99.3 2005 0.698 100.3 2006 0.707 101.3 2007 0.715 102.3 2008 0.723 103.2 2009 0.732 104.1 2010 0.740 105.0 2011 0.748 105.9 2012 0.757 106.7 2013 0.765 107.5 2014 0.774 108.3 2015 0.782 109.1 2016 0.790 109.9 2017 0.799 110.7 2018 0.807 111.4 2019 0.815 112.2 2020 0.824 112.9 2021 0.832 113.6 2022 0.840 114.3 2023 0.849 114.9 2024 0.857 115.6 2025 0.865 116.2 2026 0.873 116.9 2027 0.882 117.5 2028 0.890 118.1 2029 0.898 118.7 2030 0.906 119.3 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
01450+5707	BU 453	AB	2009	44	105	0.7	10.04	10.45	G5	NOD	014500.71+570700.3
01450+5707	BU 453	AB	2015	46	110	0.8	10.04	10.45	G5	NO	014500.71+570700.3
01450+5707	BU 453	AB	2016	47	111	0.8	10.04	10.45	G5	NO	014500.71+570700.3

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