06404+4058 STF 945 (HD 47412)

06^h 40^m 21.28^s +40° 58' 10.9" P.A. 336.00 sep 0.5 mag 7.21,8.33 Sp F2 dist. 110.99 pc (362.05 l.y.)

Coord 2000	06404+4058		Discov num	STF 945		Comp			Coord arcsec 2000	06 40 21.28 +40 58 10.9
Date first	1830		Date last	2015		Obs	125
Pa first	249		Pa last	335.9		P.A. Now (θ)	335.9°
Sep first	1.1		Sep last	0.46		Sep. Now (ρ)	0.46"
Mag pri	7.21		Mag sec	8.33		delta mag (ΔM)	1.12		Spectral class	F2 (yellow-white)
Pri motion ra	-034		Sec motion ra	-034
Pri motion dec	-005		Sec motion dec	-005
Notes	O (Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 47412		Constellation	Auriga		SAO	41253		HIP	31928
Tycho2	2945-01789-1		Gaia DR2	957633228604776320		HD	47412		GC	8690
ADS	5296		BD	BD+41 1484		Distance	110.99		Distance ly	362.05

ORBITAL ELEMENTS

Period (P)	2679.33y	± 38.68	Periastron (T)	4486.86y	± 2.17	Semi-major axis (a)	2.307a	± 0.056
Eccentricity (e)	0.534	± 0.013	Inclination (i)	72.1°	± 0.4	Longitude of periastron (ω)	186.7°	± 1.5
Node (Ω)	67.4°	± 0.3	Notes			Reference	Nov2007d
Equinox	2000		Last observation	2002		Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	323.9	0.472
2001	324.7	0.472
2002	325.6	0.471
2003	326.4	0.471
2004	327.2	0.471
2005	328.1	0.471
2006	328.9	0.471
2007	329.7	0.471
2008	330.6	0.472
2009	331.4	0.472
2010	332.2	0.472
2011	333.1	0.473
2012	333.9	0.474
2013	334.7	0.474
2014	335.6	0.475
2015	336.4	0.476
2016	337.2	0.477
2017	338.0	0.478
2018	338.8	0.479
2019	339.6	0.480
2020	340.4	0.482
2021	341.2	0.483
2022	342.0	0.485
2023	342.8	0.486
2024	343.6	0.488
2025	344.4	0.490
2026	345.2	0.491
2027	345.9	0.493
2028	346.7	0.495
2029	347.4	0.497
2030	348.2	0.500

grafico orbita

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

wds06404%2B4058b.png orbit plot

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