You're not logged.

Login

Too lazy to login each time? Click on "Remember me" at login and forget about it!
Register here!

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Current system

01388-1758
LDS 838
UV Cet

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

01388-1758 LDS 838 (UV Cet)

01^h 39^m 01.54^s -17° 57' 01.8" P.A. 324.00 sep 1.4 mag 12.70,13.20 Sp M5.5V+M6V

Coord 2000	01388-1758	Discov num	LDS 838	Comp		Coord arcsec 2000	01 39 01.54 -17 57 01.8
Date first	1935	Date last	2022	Obs	125
Pa first	118	Pa last	324.4	P.A. Now (θ)	150.9° (calc)
Sep first	2.0	Sep last	1.436	Sep. Now (ρ)	1.02" (calc)
Mag pri	12.70	Mag sec	13.20	delta mag (ΔM)	0.5	Spectral class	M5.5V+M6V (red/red)
Pri motion ra	+339	Sec motion ra	+330
Pri motion dec	+056	Sec motion dec	+056
Notes	N O P (See Notes, Orbital solution, 100-year proper motion)

rPM=0.026 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Var name

UV Cet

Constellation

Cetus

ORBITAL ELEMENTS

Period (P)	26.351y	± 0.049	Periastron (T)	2024.855y	± 0.034	Semi-major axis (a)	2.022a	± 0.0042
Eccentricity (e)	0.6143	± 0.0034	Inclination (i)	128.78°	± 0.52	Longitude of periastron (ω)	284.27°	± 0.81
Node (Ω)	146.22°	± 0.43	Notes	n		Reference	Msn2023
Equinox			Last observation			Grade	2	(1=Definitive, 9=Indet.)

label	theta	rho
2000	142.7	1.149
2001	125.8	1.398
2002	113.1	1.541
2003	102.2	1.634
2004	92.3	1.703
2005	83.1	1.761
2006	74.5	1.817
2007	66.3	1.872
2008	58.7	1.929
2009	51.5	1.987
2010	44.7	2.045
2011	38.3	2.102
2012	32.2	2.155
2013	26.4	2.202
2014	20.8	2.240
2015	15.4	2.267
2016	10.0	2.278
2017	4.7	2.269
2018	359.3	2.235
2019	353.6	2.168
2020	347.4	2.058
2021	340.4	1.890
2022	331.5	1.639
2023	318.5	1.269
2024	290.0	0.749
2025	199.9	0.554
2026	150.9	1.020
2027	131.0	1.327
2028	117.3	1.499
2029	105.9	1.605
2030	95.7	1.680
2031	86.2	1.741
2032	77.4	1.797
2033	69.1	1.853
2034	61.3	1.909
2035	54.0	1.967
2036	47.1	2.025
2037	40.5	2.082
2038	34.3	2.137
2039	28.4	2.186
2040	22.7	2.228
2041	17.3	2.259
2042	11.9	2.276
2043	6.6	2.275
2044	1.2	2.250
2045	355.6	2.196
2046	349.7	2.102
2047	343.0	1.957
2048	334.9	1.739
2049	323.9	1.416
2050	303.7	0.945

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

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

WDS 01388-1758 LDS 838 (UV Cet) : NOTES

discov_num	notes	refcode
LDS 838	LUY 726-8. L 726-8 = UV Cet. Both components are active flare stars
	According to Harrington & Behall the mass ratio is 0.487 +/- 0.011 and
	the individual masses are 0.115 (0.008) 0.109 (0.008) Msun for A & B,
	respectively.	Hrr1973
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	This pm star with flare characteristics is a difficult object.	VBs1954
	Magnitude uncertain due to flares.	USN1988b
	AB: Kervella et al. (2016) derive a new orbit for GJ 65 and determine
	the following physical parameters:
	masses (Msun): A = 0.1225 +- 0.0043 B = 0.1195 +- 0.0043
	radii (Rsun): 0.165 +- 0.006 0.159 +- 0.006
	[Fe/H] (dex): -0.03 +- 0.20 -0.12 +- 0.20
	log (cgs): 5.092 +- 0.015 5.113 +- 0.015	Krv2016
	Using the parallax from Gaia DR3 and the mass ratio from Worley,	Gai2018
	individual masses of Ma = 0.1191 +/- 0.0018 \msun and Mb = 0.1144 +/-	Wor1973b
	0.0017 \msun are determined for these components.	Msn2023

REFERENCES

refcode	metd	author	reference
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Gai2018	Hg -	Gaia Collaboration, Brown, A.G.A., Vallenari, A., et al.	2018A&A...616A...1G
Gai2018
Hrr1973	H -	Harrington, R.S. & Behall, A.L.	1973AJ.....78.1096H
Hrr1973		AJ 78, 1096, 1973
Hrr1973		(no dates given for measures; default date = decade of publication added.)
Krv2016	A j	Kervella, P., Merand, A., Ledoux, C., Demory, B.-O., & Le Bouquin, J.-B.	2016A&A...593A.127K
Krv2016	+Kv	A&A 593, A127, 2016
Msn2023	St j	Mason, B.D., Tokovinin, A., Mendez, R.A. & Costa, E.	2023AJ....166..139M
Msn2023	+orb
USN1988b	Po j	Geyer, D., Harrington, R., & Worley, C.	1988AJ.....95.1841G
USN1988b	+orb	AJ 95, 1841, 1988
USN1988b	+H
VBs1954	Ma -	Van Biesbroeck, G.	1954PYerO...8....6V
VBs1954	+Mb	Pub. Yerkes Obs. 8, pt. 6, 1954
VBs1954	+orb
Wor1973b	orb -	Worley, C.E. & Behall, A.L.	1973AJ.....78..650W
Wor1973b		AJ 78, 650, 1973

DISCOVERER

discov	author
BAZ	Baize, P.
KRV	Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
KRV	A&A 623, A116, 2019
KRV	A&A 623, A117, 2019
KRV	Kervella, P., Borgniet, S., de Souza, A.D., Merand, A., Gallenne, A., Rivinius, T.,
KRV	Lacour, S., Carciofi, A., Faes, D.M., Le Bouquin, J.-B., Taormina, M., Pilecki, B.,
KRV	Berger, J.-P., Bendjoya, P., Klement, R., Millour, F., Janot-Pacheco, E., Spang, A.
MSN	Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G.,
MSN	ten Brummelaar, T.A., & McAlister, H.A.
MSN	Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,
MSN	Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
MSN	Mason, B.D., Hartkopf, W.I., Raghavan, D., Subasavage, J.P., Roberts, L.C., Jr.,
MSN	Turner, N.H., & ten Brummelaar, T.A.
USN	Franz, O.G., Gossner, J.L., Josties, F.J., Lindenblad, I.W., Mikesell, A.H.,
USN	Pub. USNO 18, Pt.1, 1963
USN	Kallarakal, V.V., Lindenblad, I.W., Josties, F.J., Riddle, R.K., Miranian, M.,
USN	Mintz, B.F., & Klugh, A.P.
USN	Harrington, R.S., Dahn, C.C., Behall, A.L., Priser, J.B., Christy, J.W., Riepe,
USN	B.Y., Ables, H.D., Guetter, H.H., et al.
USN	Dahn, C.C., Harrington, R., Riepe, B.Y., Christy, J.W., Guetter, H.H.,
USN	Behall, A.L., Walker, R.L., Hewitt, A.V., & Ables, H.D.
USN	Dahn, C.C., Harrington, R.S., Riepe, B.Y., Christy, J.W., Guetter, H.H.,
USN	Kallarakal, V.V., Miranian, M., Walker, R.L., et al.
USN	Harrington, R.S., Kallarakal, V.V., Christy, J.W., Dahn, C.C., Riepe, B.Y.,
USN	Guetter, H.H., Ables, H.D., Hewitt, A.V., et al.
USN	Dahn, C.C., Harrington, R.S., Kallarakal, V.V., Guetter, H.H., Luginbuhl, C.B.,
USN	Riepe, B.Y., Walker, R.L., Pier, J.R., et al.
USN	Harrington, R.S., Dahn, C.C., Kallarakal, V.V., Guetter, H.H., Riepe, B.Y.,
USN	Walker, R.L., Pier, J.R., Vrba, F.J., et al.
USN	Monet, D., Bird A., Canzian B., Dahn C., Guetter H., Harris H., Henden A.,
USN	Levine S., Luginbuhl C., Monet A.K.B., Rhodes A., Riepe B., et al.
USN	Harris, H.C., Dahn, C.C., Dupuy, T.J., Canzian, B., Guetter, H.H., Hartkopf, W.I.,
USN	Ireland, M.J., Leggett, S.K., Levine, S.E., Liu, M.C., Luginbuhl, C.B.,
USN	Monet, A.K.B., Stone, R.C., Subasavage, J.P., Tilleman, T., & Walker, R.L.
USN	Dahn, C.C., Harris, H.C., Subasavage, J.P., Ables, H.D., Canzian, B.J., Guetter,
USN	H.H., Harris, F.H., Henden, A.H., Leggett, S.K., Levine, S.E., Luginbuhl, C.B.,
USN	Monet, A.B., Monet, D.G., Munn, J.A., Pier, J.R., Stone, R.C., Vrba, F.J., Walker,
USN	R.L. & Tillerman, T.M.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
01388-1758	LDS 838		1997	82	291	0.7	12.70	13.20	dM5.5e		NODP	013901.54-175701.8
01388-1758	LDS 838		2007	84	61	1.9	12.70	13.20	dM5.5e		NODP	013901.54-175701.8
01388-1758	LDS 838		2010	85	41	2.1	12.70	13.20	dM5.5e		NODP	013901.54-175701.8
01388-1758	LDS 838		2011	102	33	2.1	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8
01388-1758	LDS 838		2015	103	13	2.3	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8
01388-1758	LDS 838		2019	104	346	1.9	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8
01388-1758	LDS 838		2020	106	342	1.9	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8
01388-1758	LDS 838		2021	119	336	1.8	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8
01388-1758	LDS 838		2022	123	324	1.4	12.70	13.20	M5.5V+M6V		NO P	013901.54-175701.8

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

WDS 01388-1758 LDS 838 (UV Cet) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 01388-1758 LDS 838 (UV Cet) : MEASURES

No records found.

WDS 01388-1758 (UV Cet) : 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 01388-1758 (UV Cet) : ALADIN DSS IMAGE @ 01^h 39^m 01.54^s -17° 57' 01.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 01388-1758 LDS 838 (UV Cet) : 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		01388-1758	LDS 838		324	1.4	1
Show		01392-1759	UC 597		130	9.4	3
Show		01394-1748	HJ 2067		91	31.0	11
Show		01396-1825	UC 598		348	15.1	30
Show		01410-1808	LDS1112		216	12.5	30
Show		01377-1822	CVR1075		204	4.6	32
Show		01415-1759	HJ 2072		289	3.3	36
Show		01400-1830	GWP 211		214	85.5	36
Show		01361-1805	GWP 202		175	18.5	43
Show		01360-1805	SKF2157		236	10.0	45
Show		01421-1808	SMW 1		352	0.4	46
Show		01387-1842	SLW 75		14	152.6	46
Show		01422-1753	BUP 24		282	140.8	47
Show		01359-1732	HJ 2061		317	104.9	52
Show		01388-1849	SLW 76		56	13.0	52
Show		01373-1843	WIS 40		173	670.2	53
Show		01352-1829	RSS 49		2	8.4	65
Show		01433-1736	HJ 3455		74	23.7	65
Show		01411-1656	FEN 1		338	4.9	69
Show		01442-1753	SLW 82		355	13.4	74
Show		01431-1852	UC 608		22	12.3	81
Show		01438-1712	CVR 29		166	10.8	82
Show		01432-1853	ARA 520		109	8.0	82
Show		01448-1732	KPP4349	BC	25	46.4	86
Show		01448-1732	SKF 123	AB	284	11.7	87
Show		01448-1732	KPP4349	AC	17	45.7	87
Show		01355-1648	HU 419		49	0.1	87
Show		01411-1634	UC 601		69	7.5	89
Show		01455-1803	LDS3307		308	159.2	95
Show		01455-1822	TDS1992		43	1.3	96
Show		01460-1736	GWP 220		174	18.0	103
Show		01323-1834	RST2262	AB	163	2.3	104
Show		01323-1834	BHA 1	AC	121	3.1	104
Show		01350-1630	GWP 200		86	24.4	105
Show		01360-1618	GWP 201		120	72.6	109
Show		01313-1741	KPP2685		168	2.7	112
Show		01363-1601	RST3360		288	4.9	123
Show		01327-1922	SKF 332		176	1.2	124
Show		01316-1901	HJ 2052		114	80.8	125
Show		01305-1734	B 2516		94	5.6	125
Show		01384-1552	YSC 233		87	0.5	126
Show		01344-1607	FAR 25		145	0.2	129
Show		01304-1846	B 653	AB	138	2.0	133
Show		01304-1846	SKF2152	AC	182	62.9	133
Show		01304-1903	ARA 518		312	12.6	140
Show		01346-1552	RST3357		10	0.9	141
Show		01441-1556	BUP 25		150	160.5	141
Show		01331-1951	LDS1103		23	117.3	142
Show		01489-1823	BU 1001		6	1.6	143
Show		01361-1541	RST3359		22	0.6	143
Show		01490-1746	LSC 16		235	0.1	144

WDS 01388-1758 : COMPONENTS

	A
B	pa=324.4° sep=1.44"

01388-1758 A

Name	UV Cet		Coord arcsec 2000	013901.54-175701.8		Mag	12.7		Spectral class	M5.5V (red)
PmRA	339.00		PmDE	56.0

01388-1758 B

Coord arcsec 2000	013901.48-175700.6		Mag	13.2		Spectral class	M6V (red)		PmRA	330.00
PmDE	56.0		Delta magnitude	0.5		Coordinate calculated	yes