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14462-2111
FIN 309
17 Lib

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

14462-2111 FIN 309 (17 Lib)

14^h 46^m 10.92^s -21° 10' 32.6" P.A. 301.70 sep 0.1 mag 7.30,7.30 Sp G1V dist. 41.25 pc (134.56 l.y.)

Coord 2000	14462-2111		Discov num	FIN 309		Comp			Coord arcsec 2000	14 46 10.92 -21 10 32.6
Date first	1935		Date last	2020		Obs	69
Pa first	127		Pa last	225		P.A. Now (θ)	301.7°
Sep first	0.3		Sep last	0.1		Sep. Now (ρ)	0.07"
Mag pri	7.30		Mag sec	7.30		delta mag (ΔM)	0		Spectral class	G1V (yellow)
Pri motion ra	-058		Sec motion ra
Pri motion dec	-097		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	224.9		Precise sep	0.107		Name	17 Lib		Constellation	Libra
SAO	182858		HIP	72217		Tycho2	6166-00454-1		HD	129980
HR	5504		BD	BD-20 4087		Flamsteed	17 Librae		Flamsteed name	17 Lib
Distance	41.25		Distance ly	134.56		last precise pa	224.9		last precise sep	0.107

ORBITAL ELEMENTS

Period (P)	12.929y	± 0.021	Periastron (T)	1995.249y	± 0.055	Semi-major axis (a)	0.1814a	± 0.0021
Eccentricity (e)	0.6428	± 0.0051	Inclination (i)	25.9°	± 2.6	Longitude of periastron (ω)	39.5°	± 4.7
Node (Ω)	281.9°	± 4.1	Note			Grade	2	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2009

label	rho	theta
2000	0.278	125.1
2001	0.287	133.0
2002	0.285	140.7
2003	0.273	148.8
2004	0.251	157.9
2005	0.219	169.3
2006	0.177	185.5
2007	0.123	214.2
2008	0.068	291.6
2009	0.103	56.8
2010	0.176	90.7
2011	0.226	106.3
2012	0.259	117.0
2013	0.279	125.7
2014	0.287	133.5
2015	0.284	141.2
2016	0.272	149.4
2017	0.249	158.6
2018	0.217	170.2
2019	0.173	186.9
2020	0.119	217.2
2021	0.065	301.7
2022	0.109	60.8
2023	0.180	92.1
2024	0.229	107.2
2025	0.261	117.7
2026	0.280	126.3
2027	0.287	134.1
2028	0.284	141.8
2029	0.270	150.0
2030	0.247	159.4

grafico orbita

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

wds14462-2111a.png orbit plot

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

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14462-2111	FIN 309		2001	55	317	0.3	7.30	7.30	G1V	NOD	144610.92-211032.6
14462-2111	FIN 309		2009	59	70	0.1	7.30	7.30	G1V	NOD	144610.92-211032.6
14462-2111	FIN 309		2010	61	94	0.2	7.30	7.30	G1V	NOD	144610.92-211032.6
14462-2111	FIN 309		2011	62	110	0.2	7.30	7.30	G1V	NOD	144610.92-211032.6
14462-2111	FIN 309		2014	63	136	0.3	7.30	7.30	G1V	NO	144610.92-211032.6
14462-2111	FIN 309		2015	64	143	0.3	7.30	7.30	G1V	NO	144610.92-211032.6
14462-2111	FIN 309		2017	66	164	0.2	7.30	7.30	G1V	NO	144610.92-211032.6
14462-2111	FIN 309		2018	67	173	0.2	7.30	7.30	G1V	NO	144610.92-211032.6
14462-2111	FIN 309		2019	68	191	0.2	7.30	7.30	G1V	NO	144610.92-211032.6

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