13513-2423 WSI 77 (HD 120690)

13^h 51^m 20.32^s -24° 23' 25.3" P.A. 340.00 sep 0.1 mag 6.45,9.90 Sp G5V dist. 19.47 pc (63.51 l.y.)

Coord 2000	13513-2423	Discov num	WSI 77	Comp		Coord arcsec 2000	13 51 20.32 -24 23 25.3
Date first	2006	Date last	2021	Obs	23
Pa first	171	Pa last	339.6	P.A. Now (θ)	339.6°
Sep first	0.3	Sep last	0.131	Sep. Now (ρ)	0.131"
Mag pri	6.45	Mag sec	9.90	delta mag (ΔM)	3.45	Spectral class	G5V (yellow)
Pri motion ra	-581	Sec motion ra
Pri motion dec	-245	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 120690	Constellation	Hydra	SAO	182026	HIP	67620
Tycho2	6720-01406-1	HD	120690	HR	5209	GC	18713
GL	Gl 530	DM	CD-2311329	CD	CD-2311328	CP	CP-23 5802
Distance	19.47	Distance ly	63.51

ORBITAL ELEMENTS

Period (P)	10.485y	± 0.06	Periastron (T)	2009.218y	± 0.028	Semi-major axis (a)	0.2827a	± 0.0014
Eccentricity (e)	0.3462	± 0.008	Inclination (i)	96.4°	± 0.2	Longitude of periastron (ω)	137.5°	± 1.4
Node (Ω)	171.3°	± 0.3	Notes	n		Reference	Tok2012b
Equinox	2000		Last observation	2012		Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	346.4	0.187
2001	329.2	0.084
2002	204.1	0.070
2003	182.3	0.188
2004	177.0	0.284
2005	174.1	0.339
2006	171.7	0.340
2007	168.7	0.272
2008	160.5	0.119
2009	1.7	0.098
2010	349.9	0.203
2011	340.9	0.140
2012	274.2	0.037
2013	187.9	0.132
2014	179.1	0.242
2015	175.4	0.318
2016	172.9	0.347
2017	170.4	0.315
2018	166.1	0.204
2019	99.7	0.024
2020	353.7	0.177
2021	346.1	0.185
2022	328.0	0.081
2023	202.4	0.073
2024	182.0	0.192
2025	176.9	0.286
2026	174.1	0.340
2027	171.6	0.339
2028	168.6	0.269
2029	159.9	0.114
2030	0.9	0.104

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

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

WDS 13513-2423 WSI 77 (HD 120690) : NOTES

discov_num	notes	refcode
WSI 77	The 10.3 yr SB1 orbit by Abt & Willmarth (2006) matches the speckle	AbH2006
	pair WSI 77 and explains the large dmu.	Tok2012a
	Astrometric binary. Hipparcos parallax 51.35 +/- 0.45 mas. Dynamical
	parallax 50.3 mas, masses 0.99 and 0.63 Msun. WSI 77 is a
	chromospherically active G5 dwarf within 20 pc from the Sun. According
	to Abt & Willmarth (2006), it is also a single-lined spectroscopic	AbH2006
	binary with 10.3 yr period. We used RVs from that work and the average
	RV from Nidever et al. (2002) together with four speckle points for	Nid2002
	the combined orbital solution presented. The spectroscopic elements
	are K1 = 6.06 +/- 0.25 km/s and V0 = 5.38 +/- 0.10 km/s, the rms
	residual in RV is 0.11 km/s. The node listed in Table 3 corresponds to
	the primary component, therefore Omega was chosen to describe the
	secondaryâ€™s relative motion. The pair was "caught" at close separation
	in 2012.	Tok2012b
	Omega for Tokovinin et al. (2012) orbit flipped by 180deg, at request
	of author.	Tok2012b

REFERENCES

refcode	metd	author	reference
AbH2006	orb -	Abt, H.A., & Willmarth, D.	2006ApJS..162..207A
AbH2006		ApJS 162, 207, 2006
Nid2002	rv -	Nidever, D.L., Marcy, G.W., Butler, R.P., Fischer, D.A., & Vogt, S.S.	2002ApJS..141..503N
Nid2002		ApJS 141, 503, 2002
Tok2012a	A j	Tokovinin, A., Hartnung, M., Hayward, T.L., & Makarov, V.V.	2012AJ....144....7T
Tok2012a		AJ 144, 7, 2012
Tok2012b	S j	Tokovinin, A.	2012AJ....144...56T
Tok2012b	+orb	AJ 144, 56, 2012

DISCOVERER

idgroup	discov	author
1	WSI	Douglass, G.G., Hindsley, R.B., & Worley, C.E.
10	WSI	Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L.,
10	WSI	Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
13	WSI	Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I.,
13	WSI	Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
14	WSI	Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M.,
14	WSI	Hennessy, G.S., Platais, I., et al.
15	WSI	Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M.,
15	WSI	Hennessy, G.S., Rafferty, T.J., et al.
42	WSI	Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian,
42	WSI	C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
52	WSI	Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice,
52	WSI	M., Kilian, C.M. & Warner, R.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
13513-2423	WSI 77		2009	3	177	0.1	6.45	9.90	G5V		135120.70-242323.2
13513-2423	WSI 77		2010	4	170	0.2	6.45	9.90	G5V		135120.70-242323.2
13513-2423	WSI 77		2011	6	160	0.1	6.45	9.90	G5V		135120.70-242323.2
13513-2423	WSI 77		2012	8	54	0.0	6.45	9.90	G5V	O	135120.70-242323.2
13513-2423	WSI 77		2013	10	185	0.2	6.45	9.90	G5V	O	135120.70-242323.2
13513-2423	WSI 77		2014	11	358	0.3	6.45	9.90	G5V	NO	135120.70-242323.2
13513-2423	WSI 77		2015	12	175	0.3	6.45	9.90	G5V	NO	135120.70-242323.2
13513-2423	WSI 77		2017	14	169	0.3	6.45	9.90	G5V	NO	135120.32-242325.3
13513-2423	WSI 77		2018	16	163	0.2	6.45	9.90	G5V	NO	135120.32-242325.3
13513-2423	WSI 77		2019	18	1	0.1	6.45	9.90	G5V	NO	135120.32-242325.3
13513-2423	WSI 77		2020	20	352	0.2	6.45	9.90	G5V	NO	135120.32-242325.3
13513-2423	WSI 77		2021	23	340	0.1	6.45	9.90	G5V	NO	135120.32-242325.3

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

WDS 13513-2423 WSI 77 (HD 120690) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 13513-2423 WSI 77 (HD 120690) : MEASURES

No records found.

WDS 13513-2423 (HD 120690) : VIRTUAL EYEPIECE

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WDS 13513-2423 (HD 120690) : ALADIN DSS IMAGE @ 13^h 51^m 20.32^s -24° 23' 25.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 13513-2423 WSI 77 (HD 120690) : 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		13513-2423	WSI 77		340	0.1	1
Show		13516-2347	HTS 25	AB	220	24.2	37
Show		13539-2447	LSC 54		242	0.4	43
Show		13485-2351	B 255		149	3.7	51
Show		13552-2340	B 258		340	6.5	69
Show		13472-2329	HO 383		167	16.2	79
Show		13553-2524	I 936		212	0.4	81
Show		13455-2358	B 2762		92	10.4	84
Show		13570-2345	UC 2642		36	42.6	87
Show		13526-2258	UC 2630		144	12.5	88
Show		13496-2259	UC 2621		31	14.4	89
Show		13479-2307	UC 2619		167	21.8	90
Show		13560-2532	H N 59		166	27.5	94
Show		13457-2518	RST2865		82	1.7	95
Show		13561-2534	J 3201		42	4.4	97
Show		13575-2328	UC 2643		152	145.8	102
Show		13574-2321	DON1109		338	3.8	105
Show		13577-2525	J 1610		283	11.0	107
Show		13554-2601	RST2880		279	0.8	113
Show		13430-2414	LDS4396		59	112.0	115
Show		13433-2458	HJ 2671	AB	66	27.5	116
Show		13433-2458	HJ 2671	AC	85	97.1	116
Show		13495-2621	TOK 405		12	0.7	121
Show		13595-2331	DON 634		2	1.2	125
Show		13591-2533	BU 344		120	3.5	127
Show		13447-2250	DON 617		142	3.8	131
Show		13537-2631	KPP2492		143	22.3	132
Show		13419-2453	UC 2590		230	28.7	133
Show		13566-2231	B 1747		175	1.7	134
Show		13545-2215	HU 1262		302	0.8	137
Show		13437-2253	WIS 230	AB	152	999.9	139
Show		13415-2327	FIN 352	AB	131	0.3	147
Show		13415-2327	HJ 4606	AB,C	345	31.0	147
Show		14025-2440	B 263	AB	155	0.3	153
Show		14025-2440	TOK 571	AC	326	999.9	153
Show		14025-2440	DSG 16	Aa,Ab	294	0.0	153
Show		13505-2657	KPP1357		94	10.2	154
Show		14022-2344	UC 2665		220	13.6	154
Show		14001-2247	UC 2655		187	19.7	155
Show		13477-2651	TDS8967		72	0.4	156
Show		13507-2140	LDS 461		311	375.0	163
Show		13406-2313	KPP1993		320	15.8	164
Show		14036-2409	ARA2187		158	13.3	169
Show		13389-2442	UC 2576		214	48.8	171
Show		14037-2409	I 522		287	1.2	171
Show		13493-2135	LDS 459		33	10.6	171
Show		13439-2642	RST1743		6	0.9	172
Show		13598-2639	HDS1963		323	15.8	177
Show		13554-2134	TDS9032		105	0.4	179
Show		13393-2535	LDS4388		48	25.3	180
Show		13511-2725	B 256		136	1.3	182

WDS 13513-2423 : COMPONENTS

	A
B	pa=341.3° sep=0.13"

13513-2423 A

Componente originario normalizzato	AB	Name	HD 120690	Coord arcsec 2000	135120.32-242325.3	Mag	6.45
Spectral class	G5V (yellow)	PmRA	-581.00	PmDE	-245.0	SAO	182026
HIP	67620	Tycho2	6720-01406-1	HD	120690	HR	5209
GC	18713	DM	CD-2311329	CD	CD-2311328	CP	CP-23 5802

Tycho2

Tycho2	6720-01406-1	Pflag		RAmdeg	207.83469410	DEmdeg	-24.39047315
PmRA	-584.2	PmDE	-290.9	E RAmdeg	4	E DEmdeg	4
E pmRA	3.0	E pmDE	3.0	EpRAm	1991.76	EpDEm	1991.74
Num	3	Q RAmdeg	0.0	Q DEmdeg	0.8	Q pmRA	0.1
Q pmDE	0.8	BTmag	7.291	E BTmag	0.015	VTmag	6.521
E VTmag	0.010	Prox	999	TYC		HIP	67620
CCDM		RAdeg	207.83615889	DEdeg	-24.38980750	EpRA 1990	1.78
EpDE 1990	1.76	E RAdeg	3.8	E DEdeg	4.4	Posflg
Corr	0.2

SAO

SAO	182026	DelFlag		RA1950		PmRA1950	-0.0419
DE1950		PmDE1950	-0.305	Vmag	6.5	SpType	G0
Double code		Source	70	CatNum	18713	DM	CD-2311329
DMcomp		BDsup		HD	120690	M HD	0
GC	18713	RA1950rad	3.61536065	DE1950rad	-0.42131558	PmRA2000	-0.0419
PmDE2000	-0.302

Hipparcos

Catalog	H	HIP	67620	Proxy		RAhms	13 51 20.70
DEdms	-24 23 23.2	Vmag	6.43	VarFlag		R Vmag	G
RAdeg	207.836	DEdeg	-24.3898	AstroRef		Plx	50.2
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	120690	BD
CD	CD-2311328	CP	CP-23 5802	Dm number	-2311328	VIred	0.78
SpType	G5V	R SpType		Coord arcsec 2000	135120.70-242323.2

Hipparcos 2

HIP	67620	Sn	5	So	0	Nc	1
RArad	3.6274268712	DErad	-0.4256818295	Plx	51.35	PmRA	-580.89
PmDE	-246	E RArad	0.43	E DErad	0.28	E Plx	0.45
E pmRA	0.57	E pmDE	0.34	Hpmag	6.5665	E Hpmag	0.0008
SHp	0.006	VA	0	BV	0.703	E BV	0.005
VI	0.78

13513-2423 B

Componente originario normalizzato	AB		Coord arcsec 2000	135120.32-242325.2		Mag	9.9		Calc delta mag	3.45
Calc coord	yes