01234+5809 STF 115AB

Coord 2000	01234+5809		Discov num	STF 115		Comp	AB		Coord arcsec 2000	01 23 21.27 +58 08 35.6
Date first	1831		Date last	2018		Obs	105
Pa first	158		Pa last	160		P.A. Now (θ)	156.2°
Sep first	0.7		Sep last	0.5		Sep. Now (ρ)	0.46"
Mag pri	7.10		Mag sec	7.30		delta mag (ΔM)	0.2		Spectral class	F5V (yellow-white)
Pri motion ra	+126		Sec motion ra
Pri motion dec	-089		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		22230	01234+5809	STF 115	AB	1831	2018	105	156	0.5	7.10	7.30	0.20	Y	<===
Show		22230	01234+5809	STF 115	AB,C	1908	2008	9	286	60.3	6.40	13.09	6.69
Show		22230	01234+5809	STF 115	AB,D	1880	2003	10	186	240.1	6.40	10.99	4.59
Show		22230	01234+5809	TOK 455	AG	1980	2003	4	154	999.9	6.40	8.65	2.25
Show		22230	01234+5809	LYS 8	DE	1908	2015	12	96	43.2	10.99	11.84	0.85
Show		22230	01234+5809	LYS 8	DF	1908	2015	11	338	23.4	10.99	13.37	2.38

Septuple system
8 visible stars in this system

Precise pa	159.7		Precise sep	0.455		Constellation	Cassiopeia		SAO	22230
HIP	6486		Tycho2	3682-02261-1		HD	8272		HR	391
ADS	1105		BD	BD+57 274		Distance	58.82		Distance ly	191.87
last precise pa	159.7		last precise sep	0.455

Period (P)	222y		Periastron (T)	1984.8y		Semi-major axis (a)	0.83a
Eccentricity (e)	0.93		Inclination (i)	99°		Longitude of periastron (ω)	130°
Node (Ω)	137°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label rho theta 2000 0.175 171.5 2001 0.191 169.6 2002 0.206 168.0 2003 0.222 166.6 2004 0.238 165.3 2005 0.253 164.3 2006 0.268 163.3 2007 0.283 162.5 2008 0.298 161.7 2009 0.313 161.0 2010 0.327 160.4 2011 0.342 159.8 2012 0.356 159.3 2013 0.370 158.8 2014 0.384 158.4 2015 0.397 157.9 2016 0.411 157.6 2017 0.424 157.2 2018 0.437 156.8 2019 0.450 156.5 2020 0.463 156.2 2021 0.475 155.9 2022 0.488 155.6 2023 0.500 155.4 2024 0.512 155.1 2025 0.524 154.9 2026 0.536 154.6 2027 0.547 154.4 2028 0.559 154.2 2029 0.570 154.0 2030 0.582 153.8 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
01234+5809	STF 115	AB	2004	91	166	0.3	7.10	7.30	F5V	NOD	012321.27+580835.6
01234+5809	STF 115	AB	2007	93	164	0.3	7.10	7.30	F5V	NOD	012321.27+580835.6
01234+5809	STF 115	AB	2010	95	161	0.3	7.10	7.30	F5V	NOD	012321.27+580835.6
01234+5809	STF 115	AB	2012	96	161	0.4	7.10	7.30	F5V	NOD	012321.27+580835.6
01234+5809	STF 115	AB	2014	97	159	0.4	7.10	7.30	F5V	NOD	012321.27+580835.6
01234+5809	STF 115	AB	2016	102	160	0.4	7.10	7.30	F5V	NO	012321.27+580835.6
01234+5809	STF 115	AB	2018	104	160	0.5	7.10	7.30	F5V	NO	012321.27+580835.6

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