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

02193-0259 JOY 1 Aa,Ab

02^h 19^m 20.78^s -02° 58' 39.5" P.A. 91.00 sep 0.4 mag 6.80,10.40 Sp M7IIIe dist. 91.66 pc (298.99 l.y.)

Coord 2000	02193-0259	Discov num	JOY 1	Comp	Aa,Ab	Coord arcsec 2000	02 19 20.78 -02 58 39.5
Date first	1923	Date last	2023	Obs	90
Pa first	130	Pa last	91.1	P.A. Now (θ)	91.1°
Sep first	0.9	Sep last	0.402	Sep. Now (ρ)	0.402"
Mag pri	6.80	Mag sec	10.40	delta mag (ΔM)	3.6	Spectral class	M7IIIe (red)
Pri motion ra	+007	Sec motion ra
Pri motion dec	-239	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

02193-0259 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		129825	02 19 21 -02 58 40	JOY 1 Aa,Ab	2023	90	91	0.4	6.80	10.40	3.60	Y	<===
Show		129825	02 19 21 -02 58 40	BU 1371 AB	2017	11	68	71.5	6.64	14.07	7.43
Show	Mira	129825	02 19 21 -02 58 40	H 6 1 AC	2017	44	68	121.8	6.64	9.65	3.01
Show		129825	02 19 21 -02 58 40	STG 1 AD	2019	9	324	166.9	6.64	13.66	7.02
Show		129828	02 19 25 -02 58 16	H 6 1 BC	2019	9	68	50.3	14.07	9.65	4.42

Quintuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Mira	Var name	VZ Cet	Constellation	Cetus	SAO	129825
HIP	10826	Tycho2	4693-01144-1	Gaia DR2	2493390319631662720	HD	14386
HR	681	GC	2796	ADS	1778	BD	BD-03 353
Bayer	Omicron Ceti	Bayer name	Omi Cet	Flamsteed	68 Ceti	Flamsteed name	68 Cet
Distance	91.66	Distance ly	298.99	Bayer greek	ο Cet

Meaning

beautiful

ORBITAL ELEMENTS

Period (P)	497.88y	Periastron (T)	2285.75y	Semi-major axis (a)	0.8a
Eccentricity (e)	0.16	Inclination (i)	112°	Longitude of periastron (ω)	258.3°
Node (Ω)	138.8°	Notes	n	Reference	Sca2001f
Equinox	2000	Last observation	1998	Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	107.2	0.561
2001	106.7	0.556
2002	106.1	0.551
2003	105.6	0.545
2004	105.0	0.540
2005	104.4	0.535
2006	103.8	0.530
2007	103.2	0.525
2008	102.5	0.520
2009	101.9	0.515
2010	101.2	0.510
2011	100.6	0.505
2012	99.9	0.500
2013	99.2	0.495
2014	98.5	0.490
2015	97.8	0.485
2016	97.0	0.480
2017	96.3	0.475
2018	95.5	0.470
2019	94.7	0.465
2020	93.9	0.460
2021	93.1	0.455
2022	92.3	0.451
2023	91.4	0.446
2024	90.6	0.441
2025	89.7	0.437
2026	88.8	0.432
2027	87.9	0.428
2028	86.9	0.424
2029	85.9	0.419
2030	85.0	0.415
2031	84.0	0.411
2032	82.9	0.407
2033	81.9	0.403
2034	80.8	0.399
2035	79.7	0.395
2036	78.6	0.392
2037	77.5	0.388
2038	76.4	0.385
2039	75.2	0.382
2040	74.0	0.378
2041	72.8	0.375
2042	71.6	0.372
2043	70.4	0.370
2044	69.1	0.367
2045	67.8	0.364
2046	66.5	0.362
2047	65.2	0.360
2048	63.9	0.358
2049	62.5	0.356
2050	61.2	0.354

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

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

WDS 02193-0259 JOY 1 Aa,Ab : NOTES

discov_num	notes	refcode
JOY 1	Aa,Ab: The primary is omi Cet = VZ Cet = 68 Cet = Mira , prototype of
	the Mira-type variables. "Orbits" have been computed for the visual
	pair, but are most likely false. B has in the past been identified as a
	Cepheid, VZ Cet; however, it appears that the component seen as
	variable is the Joy component, recently determined to be a White Dwarf.	Skl2010
	Recent papers (in particular 1995 PhD thesis by Harold L. Chambers II)
	suggest that the visible companion is not the star itself, but the
	accretion disc around it (material captured from Mira's stellar wind).
	Rapid fluctuations of brightness are described by Warner (1972 MNRAS
	159, 95).
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Aa,Ab: Pair seen but not measured.	Cou1958c
	Aa,Ab: Additional notes may be found in Couteau (1963).	Cou1963a
H 6 1	H VI 1. C is BD-03@355.

REFERENCES

refcode	metd	author	reference
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Cou1958c	Ma j	Couteau, P.	1958JO.....41...81C
Cou1958c	+Mc	J. Obs. 41, 81-90, 1958
Cou1963a	Ma j	Couteau, P.	1963JO.....46..155C
Cou1963a	+Mc	J. Obs. 46, 155, 1963
Sca2001f	orb -	Scardia, M., Prieur, J.-L., Aristidi, E., Lopez, B., Mignard, F., & Carbillet, M.	2001IAUDS.145Q...1S
Sca2001f		Inf. Circ. 145, 1, 2001
Skl2010	-	Sololoski, J.L. & Bildsten, L.	2010ApJ...723.1188S
Skl2010		ApJ 723, 1188, 2010

DISCOVERER

discov	author
BAZ	Baize, P.
SCA	Scardia, M., Prieur, J.-L., Sala, M., Ghigo, M., Koechlin, L., Aristidi, E.,
SCA	& Mazzoleni, F.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Sala, M., Ghigo, M.,
SCA	Koechlin, L., & Aristidi, E.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Basso, S., Sala, M.,
SCA	Ghigo, M., Koechlin, L., & Aristidi, E.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Sala, M., Basso, S.,
SCA	Ghigo, M., Koechlin, L., & Aristidi, E.
SCA	Scardia, M., Pansecchi, L., Ragazzoni, R., Cecconi, M., Desidera, S.,
SCA	Farinato, J., Fiorenzano, A., & Ghedina, A.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Spano, P., Riva, M.,
SCA	& Landoni, M.
SCA	Scardia, M., Prieur, J.-L., Rivet, Vernet, Pansecchi, L., Argyle, R.W.,
SCA	Aristidi, E., Abe, Bendoya, Combier-Dimur, & Suarez
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Aristidi, E., Abe,
SCA	Bendoya, Combier-Dimur, Rivet, Suarez, & Vernet
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Ling, J.F., Zanutta, A.,
SCA	Aristidi, E., Abe, Bendoya, Combier-Dimur, Rivet, Suarez, & Vernet
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Ling, J.F., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendoya, Combier-Dimur, Rivet, Suarez, & Vernet
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Ling, J.F., Zanutta, A.,
SCA	Aristidi, E., Abe, Bendoya, Combier-Dimur, Rivet, Suarez, & Vernet
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Ling, J.F., Aristidi, E.,
SCA	Zanutta, A.Abe, Bendoya, Combier-Dimur, Rivet, Suarez, & Vernet
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., Ling, J.F., Aristidi, E.,
SCA	Inf. Circ. 196, 2, 2018
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Suarez, & Vernet
SCA	Scardia, M., Rivet, J.-P., Prieur, J.L., Pansecchi, L., Argyle, R.W., Ling, J.F.,
SCA	Aristidi, E., Zanutta, A., Vernet, D., Abe, L., Bendjoya, P., Dimur, C. & Suarez, O.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Scardia, M.
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Inf. Circ. 201, 1, 2020
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Inf. Circ. 202, 1, 2020
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Vernet, & Maccarini
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Vernet, & Maccarini
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Vernet, & Maccarini
SCA	Scardia, M., Prieur, J.-L., Pansecchi, L., Ling, J.F., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Vernet, & Maccarini
SCA	Scardia, M., Prieur, J.-L., Ling, J.F., Pansecchi, L., Argyle, R.W., Aristidi, E.,
SCA	Zanutta, A., Abe, Bendjoya, Rivet, Vernet, & Maccarini
SCA	Scardia, M., Prieur, J.-L., Ling, J.F., Pansecchi, L., Argyle, R.W., Aristidi, E.,
SCA	Piccotti, Maccarini, Abe, Bendjoya, Rivet, & Vernet
SCA	Scardia, M., Prieur, J.-L., Ling, J.F., Pansecchi, L., Argyle, R.W., Aristidi, E.,
SCA	Piccotti, L., Maccarini, L., Abe, L., Bendjoya, P., Rivet, J.-P. & Vernet, D.
SCA	Scardia, M., Prieur, J.-L., Ling, J.F., Pansecchi, L., Argyle, R.W., Aristidi, E.,
SCA	Piccotti, L., Maccarini, L., Abe, L., Bendjoya, P., Rivet, J.-P. & Vernet, D.
SCA	Scardia, M., Prieur, J.-L., Ling, J.F., Pansecchi, L., Argyle, R.W., Aristidi, E.,
SCA	Piccotti, L., Maccarini, L., Abe, L., Bendjoya, P., Rivet, J.-P. & Vernet, D.
SCA	Scardia, M., Prieur, J.-L., Rivet, J.P., Vernet, D., Aristidi, E., Ling, J.F.,
SCA	Pansecchi, L., Argyle, R.W., Abe, L., Bendjoya, P. & Maccarini, L.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
02193-0259	JOY 1	Aa,Ab	1998	76	110	0.6	6.80	10.40	M7IIIe	-03 353	NO	021920.78-025839.5
02193-0259	JOY 1	Aa,Ab	2008	77	102	0.5	6.80	10.40	M7IIIe	-03 353	NO	021920.78-025839.5
02193-0259	JOY 1	Aa,Ab	2014	78	98	0.5	6.80	10.40	M7IIIe	-03 353	NO	021920.78-025839.5
02193-0259	JOY 1	Aa,Ab	2023	85	91	0.4	6.80	10.40	M7IIIe	-03 353	NO	021920.78-025839.5

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

WDS 02193-0259 JOY 1 Aa,Ab : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 02193-0259 JOY 1 Aa,Ab : MEASURES

No records found.

WDS 02193-0259 : 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 02193-0259 : ALADIN DSS IMAGE @ 02^h 19^m 20.78^s -02° 58' 39.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02193-0259 JOY 1 Aa,Ab : 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	Mira	02193-0259	JOY 1	Aa,Ab	91	0.4	0
Show	Mira	02193-0259	BU 1371	AB	68	71.5	0
Show	Mira	02193-0259	STG 1	AD	324	166.9	0
Show	Mira	02193-0259	H 6 1	AC	68	121.8	0
Show		02193-0259	H 6 1	BC	68	50.3	2
Show		02178-0307	ITF 280		251	9.6	24
Show		02201-0332	HDS 305	Aa,Ab	181	0.1	36
Show		02201-0332	HEI 887	AB	106	1.7	36
Show		02222-0348	GWP 306		280	21.1	66
Show		02157-0217	GWP 285		82	6.8	69
Show		02222-0354	RST4201	AB	297	1.7	70
Show		02222-0354	WIS 62	AC	0	372.1	70
Show		02169-0404	UC 708		93	37.8	75
Show		02244-0306	TOK 465		122	999.9	76
Show		02197-0415	LDS5376		328	152.2	79
Show		02247-0243	NSN 64		300	5.4	83
Show		02137-0302	H 6 110	AB	141	78.8	85
Show		02137-0302	SUN 1	AC	41	40.4	85
Show		02142-0338	RAO 684		211	2.8	87
Show		02180-0129	CVR 419		191	20.4	92
Show		02243-0155	RST4204		20	0.2	98
Show		02249-0207	STF 266		267	7.8	99
Show		02167-0430	GWP 291		200	408.6	100
Show		02249-0354	BU 517	AB	250	11.2	101
Show		02249-0354	BU 517	AC	296	58.2	101
Show		02128-0224	TOK 39	Aa,Ab	187	0.0	105
Show		02128-0224	STF 231	AB	235	16.8	105
Show		02128-0224	STF 231	AC	53	147.0	105
Show		02146-0142	GWP 279		131	7.9	105
Show		02133-0356	A 443		140	1.2	107
Show		02245-0145	STF 265		136	12.2	107
Show		02124-0223	HDO 56		322	57.4	110
Show		02129-0349	GWP 272		51	153.9	110
Show		02129-0357	UC 699		180	11.0	114
Show		02189-0102	CVR1097		310	4.7	118
Show		02270-0326	GWP 319		20	64.5	119
Show		02273-0304	GWP 321		57	62.9	119
Show		02273-0305	WIS 66		27	865.8	120
Show		02182-0458	RST4197		120	1.2	121
Show		02125-0407	LDS5371		286	112.5	124
Show		02112-0233	DAM1002		347	7.6	126
Show		02216-0510	CVR1098		182	3.2	136
Show		02166-0516	A 445	AB	187	2.3	144
Show		02166-0516	A 445	AC	132	69.6	144
Show		02290-0302	GWP 328		278	14.0	145
Show		02284-0404	GWP 325		243	46.1	151
Show		02135-0502	GWP 273		45	8.8	152
Show		02093-0220	CVR 416		199	13.8	156
Show		02124-0455	GWP 269		48	15.0	156
Show		02092-0220	DEA 40		32	42.9	158
Show		02297-0216	BU 519		112	0.2	162

WDS 02193-0259 : COMPONENTS

	A	Ab	B	C
Ab	pa=91.1° sep=0.40"
B	pa=71.5° sep=73.45"	pa=71.4° sep=73.07"
C	pa=68.4° sep=121.80"	pa=68.3° sep=121.43"	pa=63.7° sep=48.62"
D	pa=324.2° sep=166.90"	pa=324.1° sep=167.14"	pa=303.8° sep=201.36"	pa=293.2° sep=229.49"

02193-0259 A

Common name	Mira	Meaning	beautiful	Coord arcsec 2000	021920.78-025839.5	Mag	6.64
Spectral class	M7IIIe (red)	PmRA	7.00	PmDE	-239.0	SAO	129825
HIP	10826	Tycho2	4693-01144-1	HD	14386	HR	681
GC	2796	BD	BD-03 353	Bayer	Omicron Ceti	Bayer name	omi Cet
Flamsteed	68 Ceti	Flamsteed name	68 Cet

Tycho2

Tycho2	4693-01144-1	Pflag		RAmdeg	34.83661772	DEmdeg	-2.97764684
PmRA	2.4	PmDE	-238.6	E RAmdeg	5	E DEmdeg	5
E pmRA	0.7	E pmDE	0.6	EpRAm	1990.92	EpDEm	1990.97
Num	25	Q RAmdeg	1.2	Q DEmdeg	1.2	Q pmRA	1.1
Q pmDE	1.3	BTmag	7.933	E BTmag	0.017	VTmag	6.654
E VTmag	0.010	Prox	999	TYC	T	HIP	10826
CCDM		RAdeg	34.83661194	DEdeg	-2.97711000	EpRA 1990	1.93
EpDE 1990	1.91	E RAdeg	4.5	E DEdeg	5.2	Posflg
Corr	-0.3

SAO

SAO	129825	DelFlag		RA1950		PmRA1950	-0.0008
DE1950		PmDE1950	-0.233	Vmag	2	SpType	M5e
Double code		Source	70	CatNum	2796	DM	BD-03 353
DMcomp		BDsup		HD	14386	M HD	0
GC	2796	RA1950rad	0.59697857	DE1950rad	-0.05591546	PmRA2000	-0.0005
PmDE2000	-0.237

Hipparcos

Catalog	H	HIP	10826	Proxy		RAhms	02 19 20.79
DEdms	-02 58 37.4	Vmag	6.47	VarFlag	3	R Vmag	H
RAdeg	34.8366	DEdeg	-2.97706	AstroRef		Plx	7.79
CCDM	10.33 -	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual	S	M HIP
Theta		Rho		HD		BD	BD-03 353
CD		CP		Dm number	-03 353	VIred	4.61
SpType	M5e-M9e	R SpType		Coord arcsec 2000	021920.79-025837.4

Hipparcos 2

HIP	10826	Sn	7	So	0	Nc	1
RArad	0.6080135631	DErad	-0.0519595123	Plx	10.91	PmRA	9.33
PmDE	-237.36	E RArad	1.55	E DErad	1.31	E Plx	1.22
E pmRA	1.99	E pmDE	1.58	Hpmag		E Hpmag	0.282
SHp	1.303	VA	1	BV	0.966	E BV	0.299
VI	5.71

02193-0259 Ab

Coord arcsec 2000

021920.81-025839.5

Mag

10.4

Delta magnitude

3.6

Coordinate calculated

yes

02193-0259 B

Coord arcsec 2000	021925.43-025816.2		Coord calc	021925.43-025816.2		Mag	14.07		PmRA	-38.00
PmDE	-40.0		SAO	129828		Delta magnitude	7.27

SAO

SAO	129828	DelFlag		RA1950		PmRA1950	-0.0004
DE1950		PmDE1950	-0.017	Vmag	9.1	SpType	M0
Double code		Source	70	CatNum	2797	DM	BD-03 355
DMcomp		BDsup		HD	14411	M HD	0
GC	2797	RA1950rad	0.59754066	DE1950rad	-0.05576782	PmRA2000	-0.0001
PmDE2000	-0.021

02193-0259 C

Coord arcsec 2000	021928.34-025754.7		Mag	9.65		PmRA	0.00		PmDE	-11.0
Tycho2	4693-01146-1		HD	14411		Delta magnitude	2.85		Coordinate calculated	yes

Tycho2

Tycho2	4693-01146-1	Pflag		RAmdeg	34.86862348	DEmdeg	-2.96595094
PmRA	1.2	PmDE	-8.7	E RAmdeg	26	E DEmdeg	27
E pmRA	1.6	E pmDE	1.6	EpRAm	1978.32	EpDEm	1976.73
Num	11	Q RAmdeg	0.7	Q DEmdeg	1.0	Q pmRA	0.7
Q pmDE	1.1	BTmag	11.436	E BTmag	0.094	VTmag	9.592
E VTmag	0.032	Prox	999	TYC	T	HIP
CCDM		RAdeg	34.86861667	DEdeg	-2.96594750	EpRA 1990	1.92
EpDE 1990	1.86	E RAdeg	71.5	E DEdeg	83.7	Posflg
Corr	-0.1

02193-0259 D

Coord arcsec 2000	021914.26-025624.1		Mag	13.66		PmRA	5.00		PmDE	21.0
Delta magnitude	6.86		Coordinate calculated	yes