14336+3535 STF 1858 AB (HD 128041)

14^h 33^m 36.45^s +35° 35' 08.0" P.A. 38.00 sep 3.1 mag 8.13,8.98 Sp G5 dist. 36.79 pc (120.01 l.y.)

Coord 2000	14336+3535		Discov num	STF1858		Comp	AB		Coord arcsec 2000	14 33 36.45 +35 35 08.0
Date first	1830		Date last	2020		Obs	116
Pa first	29		Pa last	38.1		P.A. Now (θ)	38.1°
Sep first	1.4		Sep last	3.083		Sep. Now (ρ)	3.083"
Mag pri	8.13		Mag sec	8.98		delta mag (ΔM)	0.85		Spectral class	G5 (yellow)
Pri motion ra	-192		Sec motion ra	-192
Pri motion dec	+058		Sec motion dec	+058
Notes	O (Orbital solution)

This double is physical.

14336+3535 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		64213	14 33 36 +35 35 08	LNA 7 Aa,Ab	2019	3	86	0.9	8.80	8.90	0.10
Show	HD 128041	64213	14 33 36 +35 35 08	STF 1858 AB	2020	116	38	3.1	8.13	8.98	0.85	Y	<===
Show		64213	14 33 36 +35 35 08	STF 1858 AC	2016	9	336	19.6	8.13	14.30	6.17
Show		64213	14 33 36 +35 35 08	STF 1858 AD	2016	7	326	39.2	8.13	14.70	6.57

Quintuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 128041		Constellation	Bootes		SAO	64213		HIP	71193
Tycho2	2559-01175-1		Gaia DR2	1480210897464076928		HD	128041		GC	19639
ADS	9312		BD	BD+36 2505		Distance	36.79		Distance ly	120.01

ORBITAL ELEMENTS

Period (P)	1328.9673y	± 538.1239	Periastron (T)	2152.9931y	± 69.2499	Semi-major axis (a)	4.68356a	± 2.79939
Eccentricity (e)	0.6736	± 0.27026	Inclination (i)	88.621°	± 0.994	Longitude of periastron (ω)	81.151°	± 17.434
Node (Ω)	38.661°	± 1.105	Notes			Reference	Izm2019
Equinox			Last observation	2015		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	37.4	3.010
2001	37.4	3.010
2002	37.4	3.011
2003	37.4	3.011
2004	37.4	3.011
2005	37.4	3.011
2006	37.5	3.011
2007	37.5	3.010
2008	37.5	3.010
2009	37.5	3.009
2010	37.5	3.009
2011	37.5	3.008
2012	37.5	3.007
2013	37.5	3.006
2014	37.5	3.005
2015	37.6	3.004
2016	37.6	3.003
2017	37.6	3.001
2018	37.6	3.000
2019	37.6	2.998
2020	37.6	2.996
2021	37.6	2.994
2022	37.6	2.992
2023	37.7	2.990
2024	37.7	2.988
2025	37.7	2.985
2026	37.7	2.983
2027	37.7	2.980
2028	37.7	2.977
2029	37.7	2.974
2030	37.7	2.971

grafico orbita

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

wds14336%2B3535b.png orbit plot

Measures: green=micrometric, blue=interferometric, purple=photographic