10426+0335 A 2768 (34 Sex)

10^h 42^m 37.53^s +03° 34' 58.9" P.A. 237.00 sep 0.6 mag 6.92,8.45 Sp F7V dist. 71.38 pc (232.84 l.y.)

Coord 2000	10426+0335		Discov num	A 2768		Comp			Coord arcsec 2000	10 42 37.53 +03 34 58.9
Date first	1914		Date last	2021		Obs	135
Pa first	271		Pa last	237.3		P.A. Now (θ)	234.8°
Sep first	0.4		Sep last	0.618		Sep. Now (ρ)	0.612"
Mag pri	6.92		Mag sec	8.45		delta mag (ΔM)	1.53		Spectral class	F7V (yellow-white)
Pri motion ra	-091		Sec motion ra
Pri motion dec	+027		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	34 Sex		Constellation	Sextans		SAO	118443		HIP	52401
Tycho2	0257-01133-1		Gaia DR2	3857564704134642944		HD	92749		GC	14723
ADS	7896		BD	BD+04 2375		Flamsteed	34 Sextantis		Flamsteed name	34 Sex
Distance	71.38		Distance ly	232.84

ORBITAL ELEMENTS

Period (P)	81.66y	± 2.05	Periastron (T)	1976.39y	± 0.21	Semi-major axis (a)	0.401a	± 0.002
Eccentricity (e)	0.55	± 0.005	Inclination (i)	140.1°	± 1.7	Longitude of periastron (ω)	354.9°	± 2.9
Node (Ω)	57.8°	± 1	Notes	n		Reference	Tok2015c
Equinox	2000		Last observation	2014		Grade	3	(1=Definitive, 9=Indet.)

label	theta	rho
2000	265.3	0.503
2001	263.5	0.516
2002	261.8	0.528
2003	260.2	0.539
2004	258.7	0.549
2005	257.2	0.559
2006	255.8	0.568
2007	254.4	0.577
2008	253.1	0.584
2009	251.8	0.591
2010	250.5	0.597
2011	249.2	0.603
2012	248.0	0.608
2013	246.8	0.612
2014	245.5	0.615
2015	244.3	0.617
2016	243.2	0.619
2017	242.0	0.620
2018	240.8	0.621
2019	239.6	0.620
2020	238.4	0.619
2021	237.2	0.618
2022	236.1	0.615
2023	234.8	0.612
2024	233.6	0.608
2025	232.4	0.603
2026	231.1	0.598
2027	229.8	0.591
2028	228.5	0.584
2029	227.2	0.577
2030	225.8	0.568

grafico orbita

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

wds10426%2B0335b.png orbit plot

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