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

06024+0939 A 2715 AB (Mu Ori)

06^h 02^m 22.99^s +09° 38' 50.5" P.A. 208.00 sep 0.1 mag 4.30,6.27 Sp A2V dist. 47.51 pc (154.98 l.y.)

Coord 2000	06024+0939	Discov num	A 2715	Comp	AB	Coord arcsec 2000	06 02 22.99 +09 38 50.5
Date first	1914	Date last	2021	Obs	133
Pa first	32	Pa last	207.6	P.A. Now (θ)	207.6°
Sep first	0.4	Sep last	0.076	Sep. Now (ρ)	0.076"
Mag pri	4.30	Mag sec	6.27	delta mag (ΔM)	1.97	Spectral class	A2V (white)
Pri motion ra	+012	Sec motion ra	+012
Pri motion dec	-034	Sec motion dec	-034
Notes	N O (See Notes, Orbital solution)

This double is physical.

06024+0939 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Mu Ori	113389	06 02 23 +09 38 50	A 2715 AB	2021	133	208	0.1	4.30	6.27	1.97	Y	<===
Show		113389	06 02 23 +09 38 50	BU 1056 AB,C	2008	8	285	18.9	4.30	14.00	9.70

Triple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	Mu Ori	Var name	NSV2792 Ori	Constellation	Orion	SAO	113389
HIP	28614	Tycho2	0721-02468-1	Gaia DR2	3329650894894946816	HD	40932
HR	2124	GC	7635	ADS	4617	BD	BD+09 1064
Bayer	Mu Orionis	Bayer name	Mu Ori	Flamsteed	61 Orionis	Flamsteed name	61 Ori
Distance	47.51	Distance ly	154.98	Bayer greek	μ Ori

ORBITAL ELEMENTS

Period (P)	18.641y	± 0.008	Periastron (T)	2003.742y	± 0.004	Semi-major axis (a)	0.2741a	± 0.0001
Eccentricity (e)	0.744	± 0.001	Inclination (i)	96.59°	± 0.02	Longitude of periastron (ω)	217.08°	± 0.08
Node (Ω)	24.76°	± 0.02	Notes	n		Reference	DRs2012
Equinox			Last observation	2011		Grade	2	(1=Definitive, 9=Indet.)

label	theta	rho
2000	10.2	0.146
2001	0.8	0.080
2002	291.9	0.025
2003	214.3	0.072
2004	160.8	0.013
2005	28.3	0.157
2006	25.6	0.258
2007	24.3	0.324
2008	23.4	0.366
2009	22.6	0.393
2010	21.9	0.406
2011	21.2	0.408
2012	20.6	0.400
2013	19.9	0.384
2014	19.0	0.360
2015	18.1	0.327
2016	16.9	0.287
2017	15.3	0.240
2018	12.8	0.185
2019	8.0	0.123
2020	351.9	0.056
2021	241.8	0.036
2022	207.9	0.082
2023	35.3	0.061
2024	27.0	0.199
2025	25.1	0.285
2026	24.0	0.341
2027	23.1	0.377
2028	22.4	0.399
2029	21.7	0.408
2030	21.0	0.406

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

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

SUSPECTED ORBITAL ELEMENTS

SUSPECTED ORBITAL ELEMENTS SOLUTION #1

Identifier	06024+0939 A 2715 A
coord_arcsec_2000	060222.99+093850.5

Period (P)	4.447585d	± 0.000001	Periastron (T)	43739.69m (1978.632y)	± 0.26	Semi-major axis (a)	1.661m	± 0.016
Eccentricity (e)	0.0037	± 0.0014	Inclination (i)	47.1°	± 9	Longitude of periastron (ω)	304°	± 21
Node (Ω)	50.5°	± 3.7	Notes	n		Reference	Mut2008
Equinox	2000		Last observation	2007		Grade	9	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	261.4	0.001
2001-01-01	313.5	0.001
2002-01-01	10.7	0.001
2003-01-01	45.9	0.002
2004-01-01	77.7	0.001
2005-01-01	126.9	0.001
2006-01-01	185.3	0.001
2007-01-01	221.9	0.002
2008-01-01	252.8	0.002
2009-01-01	299.0	0.001
2010-01-01	359.6	0.001
2011-01-01	38.7	0.002
2012-01-01	69.5	0.002
2013-01-01	113.1	0.001
2014-01-01	173.7	0.001
2015-01-01	214.7	0.002
2016-01-01	245.1	0.002
2017-01-01	285.8	0.001
2018-01-01	347.0	0.001
2019-01-01	31.2	0.002
2020-01-01	62.0	0.002
2021-01-01	100.6	0.001
2022-01-01	160.5	0.001
2023-01-01	206.9	0.002
2024-01-01	237.9	0.002
2025-01-01	274.2	0.001
2026-01-01	332.8	0.001
2027-01-01	22.9	0.001
2028-01-01	54.9	0.002
2029-01-01	89.8	0.001
2030-01-01	146.0	0.001

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

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

SUSPECTED ORBITAL ELEMENTS

SUSPECTED ORBITAL ELEMENTS SOLUTION #2

Identifier	06024+0939 A 2715 B
coord_arcsec_2000	060222.99+093850.5

Period (P)	4.783535d	± 0.000003	Periastron (T)	43746.4m (1978.651y)	± 0.63	Semi-major axis (a)	1.688m	± 0.013
Eccentricity (e)	0.0016	± 0.0014	Inclination (i)	110.71°	± 0.73	Longitude of periastron (ω)	217°	± 47
Node (Ω)	111.3°	± 3.9	Notes	n		Reference	Mut2008
Equinox	2000		Last observation	2007		Grade	9	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	251.9	0.001
2001-01-01	106.2	0.002
2002-01-01	307.1	0.001
2003-01-01	203.8	0.001
2004-01-01	96.7	0.001
2005-01-01	297.2	0.002
2006-01-01	153.2	0.001
2007-01-01	81.1	0.001
2008-01-01	289.1	0.002
2009-01-01	131.5	0.001
2010-01-01	45.4	0.001
2011-01-01	280.4	0.002
2012-01-01	120.2	0.002
2013-01-01	347.5	0.001
2014-01-01	267.7	0.001
2015-01-01	111.8	0.002
2016-01-01	317.5	0.001
2017-01-01	241.4	0.001
2018-01-01	103.6	0.002
2019-01-01	303.7	0.001
2020-01-01	185.2	0.001
2021-01-01	93.0	0.001
2022-01-01	294.7	0.002
2023-01-01	144.7	0.001
2024-01-01	73.6	0.001
2025-01-01	286.7	0.002
2026-01-01	127.5	0.001
2027-01-01	27.8	0.001
2028-01-01	277.2	0.001
2029-01-01	117.5	0.002
2030-01-01	335.4	0.001

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

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

WDS 06024+0939 A 2715 AB (Mu Ori) : NOTES

discov_num	notes	refcode
A 2715	mu Ori = 61 Ori. Alden (1942) orbit is visual. P, T, e in Osvald's	Ald1942
	(1964) astrometric orbit are taken from a revised visual orbit by	Osv1964
	Alden (cf Osvald's paper); the revised a = 0.254". The different types
	of orbits cause the longitude of the node to be in opposite quadrants.
	Star A is an Alpha CVn variable and SB1, P = 4.45 d; star B is SB2,
	P = 4.78 d (F. Fekel 1980).	Fek1980b
	See discussion by Morgan et al. (1978).	BLM1978
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Only elements P and T have been amended by Starikova (1977) from the	Sta1977a
	orbit of Alden (1942).	Ald1942
	Combined spectroscopic/astrometric solution by Fekel et al. (2002) for	Fek2002
	the wide pair of this quadruple system, plus spectroscopic orbits for
	both short-period pairs. The solution includes mass and distance
	determinations.
mu Ori	Muterspaugh et al. (2008) combine PHASES astrometry with speckle and	Mut2008
	radial velocity data to derive an orbit for the AB pair of this
	quadruple system, as well as the Aa,Ab and Ba,Bb subsystems. Listed
	solution assumes L_Aa > L_Ab and L_Ba > L_Bb; other assumptions result
	in some changes of angular elements. The parallax of the system is
	determined at 21.69 +/- 0.13 mas (distance 46.11 +/- 0.28 pc), with
	semimajor axes for AB; Aa,Ab; and Ba,Bb of 12.620 +/- 0.057, 0.07659
	+/- 0.00058, and 0.07780 +/- 0.00036 au, respectively. Other derived
	quantities for the four components are as follows:
	Star Mass (Msun) M_K (mag)
	Aa 2.38 +/- 0.11 1.03 +/- 0.26
	Ab 0.652 +/- 0.097 >4.58
	Ba 1.389 +/- 0.019 1.72 +/- 0.26
	Bb 1.356 +/- 0.019 2.02 +/- 0.26

REFERENCES

refcode	metd	author	reference
Ald1942	orb -	Alden, H.L.	1942AJ.....50...73A
Ald1942		AJ 50, 73, 1942
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
BLM1978	S j	Morgan, B.L., Beddoes, D.R., Scaddan, R.J. & Dainty, J.C.	1978MNRAS.183..701M
BLM1978		MNRAS 183, 701, 1978
DRs2012	A j	De Rosa, R.J., Patience, J., Vigan, A., Wilson, P.A., Schnieder, A.,	2012MNRAS.422.2765D
DRs2012		McConnell, N.J., Wiktorowicz, S.J., Marois, C., Song, I., Macintosh, B.,
DRs2012		Graham, J.R., Bessell, M.S., Doyon, R., & Lai, O.
DRs2012		MNRAS 422, 2765, 2012
DRs2012		(includes re-reduction of some data originally published in DRs2011)	2011MNRAS.415..854D
Fek1980b	-	Fekel, F.C.	1980PASP...92..785F
Fek1980b		PASP 92, 785, 1980
Fek2002	orb -	Fekel, F.C., Scarfe, C.D., Barlow, D.J., Hartkopf, W.I., Mason, B.D., &	2002AJ....123.1723F
Fek2002		McAlister, H.A.
Fek2002		AJ 123, 1723, 2002
Mut2008	Kp j	Muterspaugh, M.W., Lane, B.F., Fekel, F.C., Konacki, M., Burke, B.F.,	2008AJ....135..766M
Mut2008	+orb	Kulkarni, S.R., Colavita, M.M., Shao, M., & Wiktorowicz, S.J.
Mut2008		AJ 135, 766, 2008 (all observations supplanted by Mut2010a)	2010AJ....140.1579M
Osv1964	orb -	Osvalds, V.	1964PMcCO..11..175O
Osv1964		Pub. McCormick Obs. 11, 175, 1964
Sta1977a	orb -	Starikova, G.A.	1977ATsir.961....7S
Sta1977a		Astron. Tsirk. #961, 7, 1977

DISCOVERER

idgroup	discov	author
1	A	Aitken, R.G.
312	BU	Burnham, S.W. (BU 1 - 81)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
06024+0939	A 2715	AB	2007	119	25	0.3	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2008	120	23	0.4	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2009	124	22	0.4	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2011	125	21	0.4	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2014	127	19	0.4	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2015	128	17	0.3	4.30	6.27	A2V	NOD	060222.99+093850.5
06024+0939	A 2715	AB	2016	129	16	0.2	4.30	6.27	A2V	NO	060222.99+093850.5
06024+0939	A 2715	AB	2018	130	13	0.2	4.30	6.27	A2V	NO	060222.99+093850.5
06024+0939	A 2715	AB	2020	132	251	0.0	4.30	6.27	A2V	NO	060222.99+093850.5
06024+0939	A 2715	AB	2021	133	208	0.1	4.30	6.27	A2V	NO	060222.99+093850.5

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

WDS 06024+0939 A 2715 AB (Mu Ori) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 06024+0939 A 2715 AB (Mu Ori) : MEASURES

No records found.

WDS 06024+0939 (Mu Ori) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 06024+0939 (Mu Ori) : ALADIN DSS IMAGE @ 06^h 02^m 22.99^s +09° 38' 50.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 06024+0939 A 2715 AB (Mu Ori) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		06024+0939	A 2715	AB	208	0.1
Show		06024+0939	BU 1056	AB,C	285	18.9
Show		06030+0945	MLL 10	AB	143	1.4	11
Show		06030+0945	MLL 10	AC	117	57.5	11
Show		06016+0959	HEI 675		87	0.3	24
Show		06040+0921	HEI 678		228	0.3	30
Show		06003+0942	J 407		198	2.2	31
Show		06031+0901	A 2806		238	0.5	39
Show		06039+1015	J 310		319	2.4	43
Show		06013+1020	J 309		79	3.7	47
Show		06050+0911	SKF2820		240	42.4	48
Show		06020+1030	HEI 677		274	0.4	52
Show		06049+1014	J 312		160	4.4	53
Show		06015+1031	TDS 214		143	1.2	54
Show		06005+0854	BRT2114		231	4.3	55
Show		06013+0831	KPP1534		351	11.6	70
Show		06030+0828	TDS3518		276	0.6	72
Show		05585+1024	J 1105		208	1.7	73
Show		06010+1048	GWP 729		213	76.0	73
Show		06064+1024	BRT3268		70	2.7	75
Show		05589+1036	SKF2536		300	9.5	78
Show		06075+0958	J 964		287	2.1	79
Show		06077+0936	BRT3214		172	2.8	80
Show		06079+0925	TDS3573		347	0.6	83
Show		05595+1048	HEI 673		247	0.7	84
Show		06049+1054	J 311		92	4.4	84
Show		05571+1014	HDS 806	Aa,Ab	155	0.5	85
Show		05571+1014	ARG 63	AB	67	32.5	85
Show		06063+0836	GRV 710		59	61.6	86
Show		06041+1101	J 335		270	1.1	87
Show		06034+0811	J 51		117	1.5	89
Show		06065+1045	STF 840	A,BC	248	21.5	90
Show		06065+1045	STF 840	BC	103	0.3	90
Show		05570+1022	BPM 242		22	116.0	91
Show		06033+1108	A 2807		107	0.6	91
Show		06051+1100	HEI 466		278	0.9	91
Show		06082+0927	J 2736		205	5.9	92
Show		06045+1105	GRV 708		191	32.3	93
Show		06088+1004	GWP 754		329	112.1	98
Show		06027+0801	J 50		234	0.5	98
Show		05593+1105	J 1322		219	2.2	99
Show		06074+1044	J 336	AB	338	5.4	100
Show		06074+1044	J 336	AC	148	2.6	100
Show		05566+1033	AG 320		13	22.4	101
Show		05566+1033	TOI 896	Aa,Ab	126	0.1	101
Show		06057+0807	TDS3551		66	0.9	104
Show		05557+0859	STF 820		110	5.1	107
Show		06084+0823	TDS3576		85	0.8	118
Show		06079+0813	SKF 426		136	8.0	119
Show		05596+1130	BPM 244		56	84.7	119
Show		05596+0745	J 253		313	3.8	121

WDS 06024+0939 : COMPONENTS

	A	B
B	pa=207.3° sep=0.08"
C	pa=284.9° sep=18.66"	pa=285.1° sep=18.64"

06024+0939 A

Name	Mu Ori	Coord arcsec 2000	060222.99+093850.5	Mag	4.3	Spectral class	A2V (white)
PmRA	12.00	PmDE	-34.0	SAO	113389	HIP	28614
Tycho2	0721-02468-1	HD	40932	HR	2124	GC	7635
ADS	4617	BD	BD+09 1064	Bayer	Mu Orionis	Bayer name	Mu Ori
Flamsteed	61 Orionis	Flamsteed name	61 Ori

Tycho2

Tycho2	0721-02468-1	Pflag		RAmdeg	90.59582367	DEmdeg	9.64729514
PmRA	11.7	PmDE	-34.1	E RAmdeg	3	E DEmdeg	4
E pmRA	0.7	E pmDE	0.7	EpRAm	1991.54	EpDEm	1991.24
Num	20	Q RAmdeg	2.3	Q DEmdeg	1.8	Q pmRA	2.3
Q pmDE	1.7	BTmag	4.333	E BTmag	0.014	VTmag	4.152
E VTmag	0.009	Prox	999	TYC	T	HIP	28614
CCDM	AB	RAdeg	90.59579667	DEdeg	9.64737278	EpRA 1990	1.84
EpDE 1990	1.78	E RAdeg	3.2	E DEdeg	3.5	Posflg	P
Corr	-0.1

SAO

SAO	113389	DelFlag		RA1950		PmRA1950	0.0009
DE1950		PmDE1950	-0.028	Vmag	4.2	SpType	A2
Double code		Source	70	CatNum	7635	DM	BD+09 1064
DMcomp		BDsup		HD	40932	M HD	0
GC	7635	RA1950rad	1.56918691	DE1950rad	0.16840799	PmRA2000	0.001
PmDE2000	-0.028

Hipparcos

Catalog	H	HIP	28614	Proxy	H	RAhms	06 02 22.99
DEdms	+09 38 50.5	Vmag	4.12	VarFlag		R Vmag	G
RAdeg	90.5958	DEdeg	9.64737	AstroRef	A	Plx	21.49
CCDM	06024+0939	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	22	Rho	0.404	HD	40932	BD	BD+09 1064
CD		CP		Dm number	+09 1064	VIred	0.19
SpType	Am...	R SpType		Coord arcsec 2000	060222.99+093850.5

Hipparcos 2

HIP	28614	Sn	17	So	3	Nc	2
RArad	1.5811948901	DErad	0.1683783322	Plx	21.05	PmRA	10.43
PmDE	-39.09	E RArad	0.77	E DErad	0.54	E Plx	0.68
E pmRA	0.93	E pmDE	0.63	Hpmag	4.1792	E Hpmag	0.0005
SHp	0.004	VA	0	BV	0.17	E BV	0.002
VI	0.19

CCDM

Ccdm	06024+0939	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.98	DDEs	-9.5
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	4.3	Sp	A2	PmNote	*
PmRA	15	PmDE	-31	Dm number	+09 1064	Cat1	BD
Name2	+09 633	Cat2	AGK2/3	HD	40932	M HD
ADS BDS	A 4617	M ADS BDS		N IDS		IDS	05569N0939A
HIC	28614

06024+0939 B

Coord arcsec 2000	060222.99+093850.4		Mag	6.27		PmRA	12.00		PmDE	-34.0
Calc delta mag	1.97		Calc coord	yes

CCDM

Ccdm	06024+0939	RComp		Comp	B	Note1	*
Note2		Discov num	A 2715	DRAs		DDEs
R dRAs		Year	1914	Theta		Rho
Obs	99	Vmag	6.6	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 4617	M ADS BDS		N IDS		IDS	05569N0939B
HIC	28614

06024+0939 C

Coord arcsec 2000

060221.77+093855.3

Mag

Calc delta mag

9.7

Calc coord

yes

CCDM

Ccdm	06024+0939	RComp		Comp	C	Note1
Note2		Discov num	BU 1056	DRAs		DDEs
R dRAs		Year	1955	Theta	279	Rho	18.2
Obs	4	Vmag	14.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 4617	M ADS BDS		N IDS		IDS	05569N0939C
HIC