01354+1126 HDS 213

Coord 2000	01354+1126		Discov num	HDS 213		Comp			Coord arcsec 2000	01 35 21.58 +11 26 04.0
Date first	1991		Date last	2018		Obs	10
Pa first	14		Pa last	193		P.A. Now (θ)	193.2°
Sep first	0.2		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	12.67		Mag sec	12.75		delta mag (ΔM)	0.08		Spectral class	K7V: (yellow-orange)
Pri motion ra	+120		Sec motion ra
Pri motion dec	-038		Sec motion dec
Notes	O (Orbital solution)

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

Precise pa	192.7		Precise sep	0.292		Constellation	Pisces		HIP	7397
Gaia DR2	35012187776		Distance	109.05		Distance ly	355.72		last precise pa	192.7
last precise sep	0.292

Period (P)	54.663y	± 0.106	Periastron (T)	2054.258y	± 0.013	Semi-major axis (a)	0.1771a	± 0.0007
Eccentricity (e)	0.862	± 0.089	Inclination (i)	56.1°	± 2	Longitude of periastron (ω)	347.7°	± 2.9
Node (Ω)	24.2°	± 2.5	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2015

label rho theta 2000 0.025 55.1 2001 0.037 128.6 2002 0.063 154.0 2003 0.088 164.6 2004 0.111 170.6 2005 0.132 174.6 2006 0.151 177.6 2007 0.168 179.8 2008 0.185 181.7 2009 0.200 183.3 2010 0.214 184.7 2011 0.226 185.9 2012 0.238 187.0 2013 0.249 187.9 2014 0.259 188.8 2015 0.269 189.7 2016 0.277 190.5 2017 0.285 191.2 2018 0.292 191.9 2019 0.298 192.6 2020 0.304 193.2 2021 0.309 193.9 2022 0.313 194.5 2023 0.317 195.0 2024 0.319 195.6 2025 0.322 196.2 2026 0.324 196.8 2027 0.325 197.3 2028 0.325 197.9 2029 0.325 198.4 2030 0.324 199.0 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
01354+1126	HDS 213		2001	3	150	0.1	12.67	12.75	K7V:	D	013521.58+112604.0
01354+1126	HDS 213		2004	4	202	0.1	12.67	12.75	K7V:	D	013521.58+112604.0
01354+1126	HDS 213		2010	5	185	0.2	12.67	12.75	K7V:	D	013521.58+112604.0
01354+1126	HDS 213		2015	7	190	0.3	12.67	12.75	K7V:		013521.58+112604.0
01354+1126	HDS 213		2018	10	193	0.3	12.67	12.75	K7V:	O	013521.58+112604.0

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