14575-2125 H N 28 AB (KX Lib)

14^h 57^m 28.00^s -21° 24' 55.7" P.A. 307.00 sep 26.2 mag 5.88,8.18 Sp K5Ve+M2V dist. 5.84 pc (19.05 l.y.)

Coord 2000	14575-2125	Discov num	H N 28	Comp	AB	Coord arcsec 2000	14 57 28.00 -21 24 55.7
Date first	1806	Date last	2020	Obs	161
Pa first	251	Pa last	306.8	P.A. Now (θ)	306.8°
Sep first	9.4	Sep last	26.194	Sep. Now (ρ)	26.194"
Mag pri	5.88	Mag sec	8.18	delta mag (ΔM)	2.3	Spectral class	K5Ve+M2V (yellow-orange/red)
Pri motion ra	+103	Sec motion ra	+010
Pri motion dec	-173	Sec motion dec	-017
Notes	N O P (See Notes, Orbital solution, 100-year proper motion)

rPM=0.902

This double is physical.

14575-2125 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	KX Lib	183040	14 57 28 -21 24 56	H N 28 AB	2020	161	307	26.2	5.88	8.18	2.30	Y	<===
Show		183040	14 57 28 -21 24 56	H N 28 AC	2016	7	324	230.5	5.88	14.00	8.12
Show		183040	14 57 28 -21 24 56	H N 28 AD	2016	6	342	294.4	5.88	13.85	7.97
Show		183040	14 57 28 -21 24 56	H N 28 AE	2016	7	319	181.1	5.88	13.12	7.24
Show		183040	14 57 28 -21 24 56	H N 28 AF	2016	10	327	400.1	5.88	12.22	6.34
Show		183040	14 57 28 -21 24 56	BUG 4 AG	2010	2	316	258.1	5.88	18.00	12.12
Show		183039	14 57 27 -21 24 41	H N 28 Ba,Bb	2021	39	210	0.2	8.18	9.80	1.62	Y
Show		183039	14 57 27 -21 24 41	BUG 4 BG	2010	2	317	234.4	8.18	18.00	9.82

Octuple system
7 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	KX Lib	Constellation	Libra	SAO	183040	HIP	73184
Tycho2	6180-00855-1	HD	131977	HR	5568	GC	20113
ADS	9446	GL	Gl 570A	BD	BD-20 4125	FK5	1391
Distance	5.84	Distance ly	19.05

SUSPECTED ORBITAL ELEMENTS

Identifier	14575-2125
coord_arcsec_2000	145728.00-212455.7

Period (P)	6488.5537y	Periastron (T)	2152.7634y	Semi-major axis (a)	86.7648a
Eccentricity (e)	0.6598	Inclination (i)	80.9435°	Longitude of periastron (ω)	185.0814°
Node (Ω)	134.1985°	Notes	n	Reference	Kpp2020f
Equinox		Last observation		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	305.4	24.763
2001	305.5	24.830
2002	305.6	24.897
2003	305.6	24.963
2004	305.7	25.029
2005	305.8	25.095
2006	305.9	25.161
2007	306.0	25.226
2008	306.0	25.291
2009	306.1	25.355
2010	306.2	25.419
2011	306.3	25.483
2012	306.3	25.546
2013	306.4	25.609
2014	306.5	25.672
2015	306.6	25.734
2016	306.6	25.796
2017	306.7	25.857
2018	306.8	25.918
2019	306.9	25.979
2020	306.9	26.040
2021	307.0	26.099
2022	307.1	26.159
2023	307.2	26.218
2024	307.2	26.277
2025	307.3	26.335
2026	307.4	26.393
2027	307.4	26.451
2028	307.5	26.508
2029	307.6	26.564
2030	307.6	26.621

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

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

WDS 14575-2125 H N 28 AB (KX Lib) : NOTES

discov_num	notes	refcode
H N 28	AB: LDS 514. B is BD-20@4123.
	AB: NLTT 38872/38871	Chm2004
	Proper motion of A +1034.13 -1725.45, B +987.02 -1666.69.
	VLTI uniform disk diameter of A: 1.147 +/- 0.029 mas,	LTI2009
	VLTI limb-darkened disk diameter of A: 1.177 +/- 0.030 mas,
	R = 0.739 +/- 0.019 \rsun, Teff = 4597 +/- 101 K,
	M = 0.802 +/- 0.040 \msun.
	B is a spectroscopic binary, P = 308d.
	Statistically different parallax for the components indicates they are
	non-physical.
	Hipparcos triple solution together with A (= HIP 73184). P,T,e,	Duq1988
	omega, and q fixed from Duquennoy & Mayor (1988), cf orbit in	Mar1990
	Mariotti et al. (1990). Poor Hipparcos solution.	Sod1999
	Strand (1943) suspects a perturbation with P = 2.2y, a = 0".020,	Str1943
	and Omega = 30 deg.
	Hyperbolic orbit by Hopmann (1967).	Hop1967
	sigma = areal constant in the true orbit = 2.540 arcsec^2/yr
	q = periastron distance in the true orbit = 20".388
	All hyperbolic orbits rejected from Fourth Orbit Catalog	Wor1983
	Pourbaix gives combined solution for this resolved SB2, yielding
	orbital parallaxes and component masses.	Pbx2000b
	AF: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008
	Ba,Bb: Erroneously entered as BC, although C component is a very wide
	companion.
	Ba,Bb: Combined solution (spectroscopic/visual/parallax) by Forveille	Frv1999
	at al. (1999) for this low-mass interferometric SB2. P = 308.884 +/-
	0.004 days, T0 = JD2450270.220 +/- 0.011. Accurate masses are
	determined for these M dwarfs, as well as J, H, K, and L magnitudes.
	1987.455, 1987.756, 1988.312, 1988.499: Vector separations from the 1D
	data are combined to give 2D theta and rho values for these 4 dates.	Mar1990
	AC, AD, AE: Rectilinear solutions by Mason & Hartkopf (2016).	Msn2016a
	AF: Rectilinear solution by Hurowitz et al. (2014).	USN2014a

REFERENCES

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)
Duq1988	-	Duquennoy, A. & Mayor, M.	1988A&A...200..135D
Duq1988		A&A 200, 135, 1988
Frv1999	Si j	Forveille, T., Beuzit, J.-L., Delfosse, X., Segransan, D., Beck, F., Mayor, M.,	1999A&A...351..619F
Frv1999	+A	Perrier, C., Tokovinin, A., et al.
Frv1999	+orb	A&A 351, 619, 1999
Hop1967	orb -	Hopmann, J.	1967MiWie..13...49H
Hop1967		Mitt. Sternw. Wien 13, 49, 1967
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
LTI2009	not j	Demory, B.-O., Segransan, D., Forveille, T., Queloz, D., Beuzit, J.-L., Delfosse,	2009A&A...505..205D
LTI2009		X., Di Folco, E., Kervella, P., Le Bouquin, J.-B., Perrier, C., Benisty, M.,	.
LTI2009		Duvert, G., Hofmann, K.-H., Lopez, B. & Petrov, R.	.
LTI2009		A&A 505, 205, 2009	.
Msn2016a	lin -	Mason, B.D. & Hartkopf, W.I.	2016IAUDS.189....1M
Msn2016a		Inf. Circ. 189, 1, 2016
Pbx2000b	orb -	Pourbaix, D.	2000A&AS..145..215P
Pbx2000b		A&AS 145, 215, 2000
Sod1999	orb -	Soderhjelm, S.	1999A&A...341..121S
Sod1999		A&A 341, 121, 1999
Str1943	orb -	Strand, K.A.	1943PASP...55...26S
Str1943		PASP 55, 26, 1943
USN2014a	lin -	Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D.	2014IAUDS.182....1H
USN2014a		Inf. Circ. 182, 1, 2014
Wor1983	-	Worley, C.E. & Heintz, W.D.	1983PUSNO..24g...1W
Wor1983		Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)

DISCOVERER

idgroup	discov	author
1	BUG	Burgasser, A.J., Kirkpatrick, J.D., Cutri, R.M., McCallon, H., Kopan, G., Gizis,
1	BUG	J.E., Liebert, J., Reid, I.N., et al.
4	BUG	Burgasser, A.J., Kirkpatrick, J.D., Reid, I.N., Brown, M.E., Miskey, C.L., &
4	BUG	Gizis, J.E.
7	BUG	Burgasser, A.J., McElwain, M.W., Kirkpatrick, J.D., Cruz, K.L., Tinney, C.G., &
7	BUG	Reid, I.N.
10	BUG	Burgasser, A.J., Kirkpatrick, J.D., Cruz, K.L. Reid, I.N., Leggett, S.K., Liebert,
10	BUG	J., Burrows, A., & Brown, M.E.
23	BUG	Burgasser, A.J., Luk, C., Dhital, S., Bardalez Gagliuffi, D., Nicholls, C.P.,
23	BUG	Prato, L., West, A.A., & Lepine, S.
35	BUG	Aganze, Ch., Burgasser, A.J., Faherty, J.K., Choban, C., Escala, I., Lopez, M.A.,
35	BUG	Jin, Y., Tamiya, T., Tallis, M., & Rockward, W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14575-2125	H N 28	AB	2002	155	306	25.1	5.88	8.18	K5Ve M2V	NODP	145727.99-212455.8
14575-2125	H N 28	AB	2009	155	306	25.3	5.88	8.18	K5Ve M2V	NODP	145727.99-212455.8
14575-2125	H N 28	AB	2011	155	305	25.6	5.88	8.18	K5Ve M2V	NODP	145728.00-212455.7
14575-2125	H N 28	AB	2014	158	306	25.7	5.88	8.18	K5Ve M2V	NODP	145728.00-212455.7
14575-2125	H N 28	AB	2018	160	306	25.0	5.88	8.18	K5Ve+M2V	NO P	145728.00-212455.7
14575-2125	H N 28	AB	2020	161	307	26.2	5.88	8.18	K5Ve+M2V	NO P	145728.00-212455.7

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WDS 14575-2125 H N 28 AB (KX Lib) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 14575-2125 H N 28 AB (KX Lib) : MEASURES

Records found: 1

Show	date	username	difficulty	sep	sep_sigma	pa	pa_sigma	delta_mag	#	notes
Show	12/07/16	Robert		25.00	0.00	307.00	0.00		2

WDS 14575-2125 (KX Lib) : VIRTUAL EYEPIECE

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WDS 14575-2125 (KX Lib) : ALADIN DSS IMAGE @

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

Error -22130
Not valid ID.

Error -22130
Not valid ID.
Error -27220
Not valid ID.