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

15405-1842 HDS 2211 AB (HD 139751)

15^h 40^m 28.43^s -18° 41' 44.8" P.A. 26.00 sep 0.6 mag 10.52,11.85 Sp K3/K4V dist. 40.19 pc (131.1 l.y.)

Coord 2000	15405-1842	Discov num	HDS2211	Comp	AB	Coord arcsec 2000	15 40 28.43 -18 41 44.8
Date first	1991	Date last	2021	Obs	7
Pa first	66	Pa last	25.8	P.A. Now (θ)	25.8°
Sep first	0.9	Sep last	0.632	Sep. Now (ρ)	0.632"
Mag pri	10.52	Mag sec	11.85	delta mag (ΔM)	1.33	Spectral class	K3/K4V (yellow-orange)
Pri motion ra	-079	Sec motion ra	-070
Pri motion dec	-158	Sec motion dec	-157
Notes	O (Orbital solution)

rPM=0.051 (< 0.3, Physical double)

This double is physical.

15405-1842 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 139751		15 40 28 -18 41 45	HDS 2211 AB	2021	7	26	0.6	10.52	11.85	1.33	Y	<===
Show			15 40 28 -18 41 45	CVN 53 AC	2005	1	103	8.9	6.95	17.70	10.75
Show			15 40 28 -18 41 45	CVN 53 AD	2005	1	224	11.6	6.95	17.90	10.95

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 139751	Constellation	Libra	HIP	76768	Tycho2	6189-00024-1
Gaia DR2	6254299662396908288	HD	139751	BD	BD-18 4125	Distance	40.19
Distance ly	131.1

ORBITAL ELEMENTS

Period (P)	79.5y	± 2.3	Periastron (T)	2042.6y	± 1.1	Semi-major axis (a)	0.592a	± 0.015
Eccentricity (e)	0.679	± 0.023	Inclination (i)	136.6°	± 3.2	Longitude of periastron (ω)	49.3°	± 4
Node (Ω)	272.8°	± 3.5	Notes			Reference	Hor2021b
Equinox			Last observation			Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	55.9	0.861
2001	54.8	0.857
2002	53.6	0.853
2003	52.4	0.848
2004	51.2	0.842
2005	50.0	0.835
2006	48.8	0.827
2007	47.6	0.819
2008	46.3	0.810
2009	45.0	0.800
2010	43.6	0.790
2011	42.3	0.779
2012	40.9	0.767
2013	39.4	0.755
2014	37.9	0.742
2015	36.3	0.728
2016	34.7	0.714
2017	33.0	0.699
2018	31.2	0.683
2019	29.4	0.667
2020	27.4	0.651
2021	25.4	0.634
2022	23.2	0.616
2023	20.9	0.598
2024	18.4	0.579
2025	15.8	0.560
2026	13.0	0.541
2027	10.0	0.521
2028	6.8	0.501
2029	3.3	0.480
2030	359.4	0.460

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

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

WDS 15405-1842 HDS 2211 AB (HD 139751) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Hor2021b	S	Horch, E.P., Broderick, K.G., Casetti-Dinescu, D.I., Henry, T.J., Fekel, F.C.,	2021AJ....161..295H
Hor2021b		Mutterspaugh, M.W., Willmarth, D.W., Winters, J.G., van Belle, G.T., Clark, C.A. &
Hor2021b		Everett, M.E.
Hor2021b		AJ 161, 295, 2021

DISCOVERER

idgroup	discov	author
1	CVN	Chauvin, G., Menard, F., Fusco, T., Lagrange, A.-M., Beuzit, J.-L., Mouillet, D.,
1	CVN	& Augereau, J.-C.
2	CVN	Chauvin, G., Thomson, M., Dumas, C., Beuzit, J.-L., Lowrance, P., Fusco, T.,
2	CVN	Lagrange, A.-M., Zuckerman, B., et al.
3	CVN	Chauvin, G., Lagrange, A.-M., Beust, H., Fusco, T., Mouillet, D., Lacombe, F.,
3	CVN	Pujet, P., Rousset, G., et al.
4	CVN	Chauvin, G., Lagrange, A.-M., Dumas, C., Zuckerman, B., Mouillet, D., Song, I.,
4	CVN	Beuzit, J.-L., & Lowrance, P.
5	CVN	Chauvin, G., Lagrange, A.-M., Lacombe, F., Dumas, C., Mouillet, D., Zuckerman, B.,
5	CVN	Gendron, E., Song, I., et al.
6	CVN	Chauvin, G., Lagrange, A.-M., Dumas, C., Zuckerman, B., Mouillet, D., Song, I.,
6	CVN	Beuzit, J.-L., & Lowrance, P.
7	CVN	Chauvin, G., Lagrange, A.-M., Zuckerman, B., Dumas, C., Mouillet, D., Song, I.,
7	CVN	Beuzit, J.-L., Lowrance, P., & Bessell, M.S.
8	CVN	Chauvin, G., Lagrange, A.-M., Udry, S., Fusco, T., Galland, F., Naef, D., Beuzit,
8	CVN	J.-L., & Mayor, M.
11	CVN	Chauvin, G., Lagrange, A.-M., Zuckerman, B., Dumas, C., Bessell, M.S., Beuzit,
11	CVN	J.-L., Bonnefoy, M., Desidera, S., et al.
15	CVN	Chauvin, G., Faherty, J., Boccaletti, A., Cruz, K., Lagrange, A., Zuckerman, B.,
15	CVN	Bessell, M.S., Beuzit, J.-L., Bonnefoy, M., Dumas, C., Lowrance, P., & Song, I.
16	CVN	Chauvin, G., Lagrange, A.-M., Beust, H., Bonnefoy, M., Boccaletti, A., Apai, D.,
16	CVN	Allard, F., Ehrenreich, D., Girard, J.H.V., Mouillet, D., & Rouan, D.
17	CVN	Chauvin, G., Vigan, A., Bonnefoy, M., Desidera, S., Bonavita, M., Mesa, D.,
17	CVN	Boccaletti, A., Buenzli, E., Carson, J., Delorme, P., Hagelberg, J.,
17	CVN	Montagnier, G., et al.
18	HDS	Hipparcos Double Star (from additional DD list)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15405-1842	HDS2211	AB	2007	3	47	0.8	10.52	11.85	K3/K4V		154028.43-184144.8
15405-1842	HDS2211	AB	2014	4	38	0.7	10.52	11.85	K3/K4V		154028.43-184144.8
15405-1842	HDS2211	AB	2018	5	31	0.7	10.52	11.85	K3/K4V		154028.43-184144.8
15405-1842	HDS2211	AB	2021	7	26	0.6	10.52	11.85	K3/K4V	O	154028.43-184144.8

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

WDS 15405-1842 HDS 2211 AB (HD 139751) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15405-1842 HDS 2211 AB (HD 139751) : MEASURES

No records found.

WDS 15405-1842 (HD 139751) : 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 15405-1842 (HD 139751) : ALADIN DSS IMAGE @ 15^h 40^m 28.43^s -18° 41' 44.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15405-1842 HDS 2211 AB (HD 139751) : 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		15405-1842	HDS2211	AB	26	0.6
Show		15405-1842	CVN 53	AC	103	8.9
Show		15405-1842	CVN 53	AD	224	11.6
Show		15405-1901	RST2975		75	2.0	19
Show		15404-1919	ARA 702		97	7.9	38
Show		15389-1918	HDS2209		109	0.4	43
Show		15372-1820	BRT1493		288	4.7	52
Show		15404-1749	TDS9587		279	0.4	53
Show		15423-1929	HU 653		177	4.3	55
Show		15419-1941	ENG 54		283	169.9	63
Show		15399-1946	BU 122	AB	228	1.7	65
Show		15454-1820	KPP1438			10.8	74
Show		15383-1734	HDS2206	AB		3.8	76
Show		15383-1734	TOK 168	AC	316	13.9	76
Show		15360-1806	ARA 240		230	7.7	76
Show		15384-1955	CHR 48		166	0.3	79
Show		15443-1943	HU 654		14	1.1	83
Show		15348-1820	ARA 239		132	6.3	84
Show		15365-1741	ARA 241		52	3.8	88
Show		15415-2014	RST4548		289	0.6	94
Show		15470-1908	HU 656		16	1.4	97
Show		15364-1719	LDS4568		132	5.1	102
Show		15448-2003	B 2366		26	1.4	102
Show		15383-2021	B 2786	BC	101	3.5	103
Show		15476-1829	UC 3067		242	48.4	103
Show		15383-2021	B 2786	AB	336	139.7	104
Show		15328-1817	GWP2530		285	17.1	112
Show		15425-2030	ARA1111		219	2.0	113
Show		15370-1659	HWE 35	AB	331	7.3	115
Show		15370-1659	HWE 35	AC	236	43.5	115
Show		15328-1756	HJ 1273		328	14.5	119
Show		15488-1857	GWP2555		304	98.2	120
Show		15367-2030	KPP1748		318	13.5	121
Show		15388-2041	ARA1110		37	15.2	122
Show		15481-1747	LSC 60		306	0.7	122
Show		15350-1708	HDS2188		323	0.1	122
Show		15362-1656	ARN 106		293	44.6	122
Show		15491-1844	ARA 431		141	12.2	124
Show		15458-1657	TOK 169		112	20.0	130
Show		15469-1707	HDS2221		336	0.1	132
Show		15312-1852	HO 393	AB	290	6.7	133
Show		15312-1852	HO 393	AC	313	167.9	133
Show		15382-1633	FOX 75		19	1.6	134
Show		15450-1643	HU 655		32	2.2	135
Show		15339-1700	HDS2185		199	0.5	138
Show		15397-2101	HWE 36		196	2.7	140
Show		15501-1809	OCC 51		-1	0.1	141
Show		15473-2028	TOK 675		85	167.3	144
Show		15324-2011	B 2358		206	0.4	145
Show		15506-1831	GWP2557		50	34.9	145
Show		15317-2010	S 672		280	11.2	152

WDS 15405-1842 : COMPONENTS

	A	B	C
B	pa=24.6° sep=0.63"
C	pa=104.1° sep=8.46"	pa=108.3° sep=8.37"
D	pa=222.5° sep=11.28"	pa=221.5° sep=11.88"	pa=248.4° sep=17.01"

15405-1842 A

Name	HD 139751	Coord arcsec 2000	154028.43-184144.8	Mag	10.52	Spectral class	K3/K4V (yellow-orange)
PmRA	-79.00	PmDE	-158.0	HIP	76768	Tycho2	6189-00024-1
HD	139751	BD	BD-18 4125

Tycho2

Tycho2	6189-00024-1	Pflag		RAmdeg	235.11830268	DEmdeg	-18.69615364
PmRA	-79.0	PmDE	-158.3	E RAmdeg	33	E DEmdeg	33
E pmRA	2.5	E pmDE	2.6	EpRAm	1983.60	EpDEm	1978.58
Num	6	Q RAmdeg	1.6	Q DEmdeg	1.8	Q pmRA	1.6
Q pmDE	1.7	BTmag	12.091	E BTmag	0.183	VTmag	10.522
E VTmag	0.064	Prox	8	TYC	T	HIP	76768
CCDM	A	RAdeg	235.11847083	DEdeg	-18.69579667	EpRA 1990	1.75
EpDE 1990	1.60	E RAdeg	48.6	E DEdeg	63.3	Posflg
Corr	0.2

Hipparcos

Catalog	H	HIP	76768	Proxy	H	RAhms	15 40 28.43
DEdms	-18 41 44.8	Vmag	10.15	VarFlag		R Vmag	G
RAdeg	235.118	DEdeg	-18.6958	AstroRef	A	Plx	23.47
CCDM	15405-1842	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	66	Rho	0.867	HD	139751	BD	BD-18 4125
CD		CP		Dm number	-18 4125	VIred	1.26
SpType	K3/K4V	R SpType		Coord arcsec 2000	154028.43-184144.8

Hipparcos 2

HIP	76768	Sn	15	So	3	Nc	2
RArad	4.1035915368	DErad	-0.3263029624	Plx	24.88	PmRA	-70.13
PmDE	-159.81	E RArad	2.33	E DErad	1.48	E Plx	2.69
E pmRA	3.32	E pmDE	2.39	Hpmag	10.2828	E Hpmag	0.0073
SHp	0.046	VA	0	BV	1.238	E BV	0.007
VI	1.4

CCDM

Ccdm	15405-1842	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.61	DDEs	13.8
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	10.6	Sp	K3	PmNote	*
PmRA	-70	PmDE	-157	Dm number	-18 4125	Cat1	BD
Name2		Cat2		HD	139751	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	76768

15405-1842 B

Coord arcsec 2000	154028.45-184144.2		Mag	11.85		PmRA	-70.00		PmDE	-157.0
Calc delta mag	1.33		Calc coord	yes

CCDM

Ccdm	15405-1842	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-1.55	DDEs	14.2
R dRAs	82	Year	1991	Theta	66	Rho	0.9
Obs	1	Vmag	11.9	Sp		PmNote	*
PmRA	-70	PmDE	-157	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	76768

15405-1842 C

Coord arcsec 2000

154029.01-184146.9

Mag

17.7

Calc delta mag

7.18

Calc coord

yes

15405-1842 D

Coord arcsec 2000

154027.89-184153.1

Mag

17.9

Calc delta mag

7.38

Calc coord

yes