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00006-5306
HJ 5437

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00006-5306 HJ 5437

00^h 00^m 34.35^s -53° 05' 51.8" P.A. 340.20 sep 1.3 mag 6.55,9.85 Sp G0/2IV dist. 59.42 pc (193.83 l.y.)

Coord 2000	00006-5306		Discov num	HJ 5437		Comp			Coord arcsec 2000	00 00 34.35 -53 05 51.8
Date first	1836		Date last	2019		Obs	30
Pa first	296		Pa last	340		P.A. Now (θ)	340.2°
Sep first	2.5		Sep last	1.4		Sep. Now (ρ)	1.33"
Mag pri	6.55		Mag sec	9.85		delta mag (ΔM)	3.3		Spectral class	G0/2IV (yellow)
Pri motion ra	+060		Sec motion ra	+053
Pri motion dec	-028		Sec motion dec	-021
Notes	O (Orbital solution)

rPM=0.15 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	339.7		Precise sep	1.365		Constellation	Hydra		SAO	248097
HIP	50		Tycho2	8464-00515-1		Gaia DR2	4972326695628963584		HD	224782
CP	CP-5310565		Distance	59.42		Distance ly	193.83		last precise pa	339.7
last precise sep	1.365

ORBITAL ELEMENTS

Period (P)	904.0236y	± 362.8075	Periastron (T)	2063.3249y	± 16.3824	Semi-major axis (a)	2.8038a	± 1.04206
Eccentricity (e)	0.81172	± 0.14686	Inclination (i)	49.893°	± 14.26	Longitude of periastron (ω)	79.676°	± 10.079
Node (Ω)	5.86°	± 30.497	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox			Last observation	2015

label	rho	theta
2000	1.600	328.7
2001	1.589	329.2
2002	1.577	329.6
2003	1.566	330.1
2004	1.554	330.6
2005	1.542	331.1
2006	1.530	331.6
2007	1.518	332.1
2008	1.506	332.6
2009	1.493	333.1
2010	1.481	333.7
2011	1.468	334.2
2012	1.455	334.8
2013	1.442	335.3
2014	1.429	335.9
2015	1.415	336.5
2016	1.402	337.1
2017	1.388	337.7
2018	1.374	338.3
2019	1.359	338.9
2020	1.345	339.6
2021	1.330	340.2
2022	1.315	340.9
2023	1.300	341.6
2024	1.284	342.3
2025	1.269	343.0
2026	1.253	343.8
2027	1.236	344.5
2028	1.220	345.3
2029	1.203	346.1
2030	1.185	346.9

grafico orbita

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

wds00006-5306d.png orbit plot

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

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00006-5306	HJ 5437		2001	25	331	1.6	6.55	9.85	G0/2IV	D	000034.35-530551.8
00006-5306	HJ 5437		2008	26	333	1.5	6.55	9.85	G0/2IV	D	000034.35-530551.8
00006-5306	HJ 5437		2015	27	337	1.4	6.55	9.85	G0/2IV		000034.35-530551.8
00006-5306	HJ 5437		2019	29	340	1.4	6.55	9.85	G0/2IV	O	000034.35-530551.8

If you need more information about this double, apply for a data request form to the WDS.