05162-1121 CHR 225 (HD 34318)

05^h 16^m 10.56^s -11° 21' 09.2" P.A. 230.00 sep 0.1 mag 6.50,7.10 Sp G8III+A3: dist. 228.31 pc (744.75 l.y.)

Coord 2000	05162-1121	Discov num	CHR 225	Comp		Coord arcsec 2000	05 16 10.56 -11 21 09.2
Date first	1989	Date last	2021	Obs	7
Pa first	52	Pa last	229.6	P.A. Now (θ)	229.6°
Sep first	0.1	Sep last	0.056	Sep. Now (ρ)	0.056"
Mag pri	6.50	Mag sec	7.10	delta mag (ΔM)	0.6	Spectral class	G8III+A3: (yellow/white)
Pri motion ra	-001	Sec motion ra
Pri motion dec	+004	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 34318	Constellation	Lepus	SAO	150286	HIP	24560
Tycho2	5339-01783-1	Gaia DR2	2989889947800291328	HD	34318	GC	6448
BD	BD-11 1117	Distance	228.31	Distance ly	744.75

ORBITAL ELEMENTS

Period (P)	3909.7d (10.7y)	± 6	Periastron (T)	46423.9m (1985.982y)	± 5.9	Semi-major axis (a)	0.0349a	± 0.0022
Eccentricity (e)	0.904	± 0.004	Inclination (i)	39°	± 10	Longitude of periastron (ω)	32°	± 1.4
Node (Ω)	31°	± 20	Notes	n		Reference	Doc2014h
Equinox			Last observation	1993		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	229.5	0.058
2001	233.3	0.062
2002	236.8	0.063
2003	240.3	0.060
2004	244.4	0.055
2005	249.6	0.047
2006	258.0	0.034
2007	285.3	0.014
2008	207.6	0.023
2009	220.5	0.042
2010	226.5	0.053
2011	230.7	0.060
2012	234.3	0.062
2013	237.8	0.062
2014	241.5	0.059
2015	245.7	0.053
2016	251.6	0.043
2017	262.1	0.029
2018	339.3	0.005
2019	213.2	0.030
2020	222.6	0.046
2021	227.8	0.056
2022	231.8	0.061
2023	235.4	0.063
2024	238.8	0.062
2025	242.6	0.058
2026	247.2	0.051
2027	253.9	0.040
2028	268.1	0.023
2029	185.8	0.010
2030	216.9	0.036

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

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

WDS 05162-1121 CHR 225 (HD 34318) : NOTES

discov_num	notes	refcode
CHR 225	It in uncertain whether the pair resolved here is the known G8III+A0V
	composite spectrum binary (Hoffleit & Warren 1991). The small apparent	Hof1991
	change in theta over the 4-year span between observations does not
	appear consistent with our estimated period of ~15 or so years;
	however, the magnitude difference between the components is small, so
	we are unable to rule out a 180 deg quadrant flip or perhaps an
	eccentric orbit.	Hrt1996b
	Docobo et al. (2014) use the spectroscopic elements of Carquillat &
	Prieur (2007), together with speckle data and the Hipparcos parallax,	Crq2007
	to derive the remaining orbital elements. The resulting masses are
	1.92 +/- 0.26 and 2.50 +/- 0.29 Msun.	Doc2014h

REFERENCES

refcode	metd	author	reference
Doc2014h	Ma j	Docobo, J.A.	...................
Doc2014h		private communication, 2014
Doc2014h	orb j	Docobo, J.A., Campo, P., Andrade, M., & Horch, E.P.	2014AstBu..69..461D
Doc2014h		Astrophys. Bull. 69, 461, 2014
Hof1991	-	Hoffleit, D. & Jaschek, C.	1991bsc..book.....H
Hof1991		The Bright Star Catalogue, Fifth Revised Edition (preliminary version), 1991
Hrt1996b	Sc j	Hartkopf, W.I., Mason, B.D., McAlister, H.A., Turner, N.H., Barry, D.J., Franz, .	1996AJ....111..936H
Hrt1996b		O.G., & Prieto, C.M
Hrt1996b		AJ 111, 936, 1996

DISCOVERER

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
05162-1121	CHR 225		1993	2	56	0.1	6.50	7.10		N D	051610.56-112109.2
05162-1121	CHR 225		2016	4	24	0.0	6.50	7.10	G8III+A3:	NO	051610.56-112109.2
05162-1121	CHR 225		2019	5	225	0.0	6.50	7.10	G8III+A3:	NO	051610.56-112109.2
05162-1121	CHR 225		2020	6	227	0.0	6.50	7.10	G8III+A3:	NO	051610.56-112109.2
05162-1121	CHR 225		2021	7	230	0.1	6.50	7.10	G8III+A3:	NO	051610.56-112109.2

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WDS 05162-1121 CHR 225 (HD 34318) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 05162-1121 CHR 225 (HD 34318) : MEASURES

No records found.

WDS 05162-1121 (HD 34318) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 05162-1121 (HD 34318) : ALADIN DSS IMAGE @ 05^h 16^m 10.56^s -11° 21' 09.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 05162-1121 CHR 225 (HD 34318) : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		05162-1121	CHR 225		230	0.1
Show		05171-1124	GWP 668		146	18.9	14
Show		05153-1137	BRT2643		306	4.9	22
Show		05158-1142	GWP 663		232	39.2	22
Show		05163-1149	HU 35		65	2.7	28
Show		05177-1059	HU 36		192	0.9	32
Show		05166-1048	GWP 665		117	49.4	34
Show		05190-1116	NSN 86		8	1.2	43
Show		05177-1041	HJ 2260	AB	2	31.4	46
Show		05177-1041	SIN 14	AC	13	109.7	46
Show		05177-1041	SIN 14	AD	18	132.4	46
Show		05188-1154	KPP2711		182	33.7	52
Show		05199-1125	KPP2413		52	21.0	56
Show		05193-1045	STF 688		95	10.5	60
Show		05134-1038	HU 34		100	1.5	60
Show		05158-1222	LAS 24		133	24.1	62
Show		05123-1152	HUB 6	Aa,Ab	23	0.4	65
Show		05123-1152	STF 655	AB	337	11.9	65
Show		05207-1103	TDS3151		171	0.6	70
Show		05138-1231	BRT2642		355	4.8	78
Show		05109-1108	TVB 93		158	3.8	80
Show		05206-1031	GAL 379		98	31.4	83
Show		05151-0958	RST3418		305	0.8	86
Show		05224-1125	RST3421		65	1.2	92
Show		05226-1050	TDS3164		221	0.5	101
Show		05132-1256	STF 661		357	2.2	105
Show		05228-1042	RST3422		39	0.7	106
Show		05231-1046	RST3423		4	1.4	108
Show		05156-0931	SKF 982		246	10.8	111
Show		05229-1211	TDS3168		184	0.9	111
Show		05196-0942	HDS 700	AB	211	0.0	112
Show		05099-1225	TDS3088		35	1.2	112
Show		05224-1009	UC 1298		136	20.0	117
Show		05182-0927	J 325		181	2.1	119
Show		05085-1036	GAL 377		230	23.9	122
Show		05236-1025	STN 10		119	1.1	123
Show		05195-0927	YSC 34	AB	219	0.3	125
Show		05195-0927	LSC 135	AC	67	1.9	125
Show		05078-1159	TSN 74		230	8.8	130
Show		05075-1056	RST3412		57	0.8	131
Show		05252-1119	BU 1395	BC	224	10.9	133
Show		05252-1119	STF 710	AB	196	10.3	134
Show		05252-1119	HJ 5538	AD	85	54.9	134
Show		05252-1119	ABH 30	AE	224	92.2	134
Show		05107-0925	A 485		120	4.3	142
Show		05089-1255	RST3413		155	1.5	143
Show		05087-0947	GAL 167		214	10.0	146
Show		05216-0916	GWP 677		30	84.0	149
Show		05119-0907	BUP 76		258	86.8	149
Show		05125-0902	TDS3109		312	0.7	150
Show		05137-0856	MLL 2		260	5.1	151

WDS 05162-1121 : COMPONENTS

	A
B	pa=229.0° sep=0.06"

05162-1121 A

Componente originario normalizzato	AB	Name	HD 34318	Coord arcsec 2000	051610.56-112109.2	Mag	6.5
Spectral class	G8III (yellow)	PmRA	-1.00	PmDE	4.0	SAO	150286
HIP	24560	Tycho2	5339-01783-1	HD	34318	GC	6448
BD	BD-11 1117

Tycho2

Tycho2	5339-01783-1	Pflag		RAmdeg	79.04399600	DEmdeg	-11.35255421
PmRA	-0.4	PmDE	3.7	E RAmdeg	4	E DEmdeg	4
E pmRA	1.2	E pmDE	1.2	EpRAm	1991.35	EpDEm	1991.39
Num	10	Q RAmdeg	1.0	Q DEmdeg	1.2	Q pmRA	0.9
Q pmDE	1.2	BTmag	7.253	E BTmag	0.015	VTmag	6.535
E VTmag	0.010	Prox	999	TYC	T	HIP	24560
CCDM		RAdeg	79.04399667	DEdeg	-11.35256278	EpRA 1990	1.65
EpDE 1990	1.67	E RAdeg	4.2	E DEdeg	4.2	Posflg
Corr	0.1

SAO

SAO	150286	DelFlag		RA1950		PmRA1950	0
DE1950		PmDE1950	0.003	Vmag	6.5	SpType	+++
Double code		Source	70	CatNum	6448	DM	BD-11 1117
DMcomp		BDsup		HD	34318	M HD	9
GC	6448	RA1950rad	1.36935791	DE1950rad	-0.19908977	PmRA2000	0.0005
PmDE2000	0.004

Hipparcos

Catalog	H	HIP	24560	Proxy		RAhms	05 16 10.56
DEdms	-11 21 09.2	Vmag	6.45	VarFlag		R Vmag	H
RAdeg	79.044	DEdeg	-11.3526	AstroRef		Plx	3.89
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	34318	BD	BD-11 1117
CD		CP		Dm number	-11 1117	VIred	0.7
SpType	G0	R SpType		Coord arcsec 2000	051610.56-112109.2

Hipparcos 2

HIP	24560	Sn	5	So	0	Nc	1
RArad	1.3795779736	DErad	-0.1981396265	Plx	4.38	PmRA	-0.34
PmDE	5.36	E RArad	0.34	E DErad	0.3	E Plx	0.45
E pmRA	0.45	E pmDE	0.34	Hpmag	6.5831	E Hpmag	0.0008
SHp	0.007	VA	0	BV	0.67	E BV	0.007
VI	0.73

05162-1121 B

Componente originario normalizzato	AB		Coord arcsec 2000	051610.56-112109.2		Mag	7.1		Spectral class	A3: (white)
Calc delta mag	0.6		Calc coord	yes