10493-5319 LUH 16

10^h 49^m 18.81^s -53° 19' 06.3" P.A. 309.00 sep 1.2 mag 15.50,15.90 Sp L7.5+T0.5

Coord 2000	10493-5319	Discov num	LUH 16	Comp		Coord arcsec 2000	10 49 18.81 -53 19 06.3
Date first	1984	Date last	2020	Obs	96
Pa first	321	Pa last	308.6	P.A. Now (θ)	308.6°
Sep first	1.8	Sep last	1.218	Sep. Now (ρ)	1.218"
Mag pri	15.50	Mag sec	15.90	delta mag (ΔM)	0.4	Spectral class	L7.5+T0.5 (very deep red/brown dwarf)
Pri motion ra	-176	Sec motion ra
Pri motion dec	+036	Sec motion dec
Notes	N O R (See Notes, Orbital solution, Red magnitudes)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vela

Gaia DR2

5353625847691839488

ORBITAL ELEMENTS

Period (P)	27.4y	± 0.5	Periastron (T)	48030d (1990.378y)	± 570	Semi-major axis (a)	1.77a	± 0.05
Eccentricity (e)	0.35	± 0.04	Inclination (i)	79.5°	± 0.6	Longitude of periastron (ω)	130.4°	± 7
Node (Ω)	130.12°	± 0.24	Notes	n		Reference	GEV2017
Equinox	2000		Last observation	2015		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	88.6	0.604
2001	102.4	0.852
2002	109.8	1.107
2003	114.5	1.349
2004	117.8	1.568
2005	120.4	1.757
2006	122.4	1.911
2007	124.2	2.025
2008	125.9	2.093
2009	127.5	2.109
2010	129.1	2.067
2011	130.8	1.958
2012	132.8	1.777
2013	135.4	1.514
2014	139.4	1.165
2015	147.5	0.735
2016	181.7	0.290
2017	280.9	0.416
2018	300.4	0.853
2019	307.3	1.165
2020	311.8	1.299
2021	316.0	1.275
2022	320.8	1.137
2023	327.4	0.930
2024	338.3	0.691
2025	0.1	0.474
2026	41.9	0.387
2027	79.6	0.516
2028	98.0	0.750
2029	107.3	1.006
2030	112.8	1.255

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

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

WDS 10493-5319 LUH 16 : NOTES

discov_num	notes	refcode
LUH 16	WISE J104915.57-531906.1. Nearby (2.0 +/- 0.15pc) high-proper motion
	(-2759 +/- 6, +354 +/- 6mas/yr) star resolved as 1.5" (3au) binary by
	Gemini Multi-Object Spectrograph. Primary classified as L8 +/- 1,
	secondary as late-L/early-T.	Luh2013
	Based on several spectral indices, Burgasser et al. (2013) determine
	spectral types L7.5 and T0.5 +/- 1.	Bug2013
	Boffin et al. (2014) monitored LUH 16 over 2 months, and detected
	perturbation in the relative orbital motion which led them to suspect
	a substellar companion around one of the two components.	Bof2014
	Kniazev et al. (2013) obtained long-slit spectra and NIR images, and
	derive spectral types of L8 +/- 1 and T1.5 +/- 2.	Kni2013
	Bedin et al. (2017) derive masses 32 +/- 11 and 27 +/- 10 Mjup for the
	components of this L7.5+T0.5 brown dwarf pair.	Bdi2017
	Garcia et al. (2017) derive component masses 34.2 +/- 1.2 and
	27.9 +/- 1.0 Mjup.	GEV2017

REFERENCES

refcode	metd	author	reference
Bdi2017	Hp+ -	Bedin, L.R., Pourbaix, D., Apai, D., Burgasser, A.J., Buenzli, E., Boffin, H.M.J.	2017MNRAS.470.1140B
Bdi2017	+orb+	& Libralato, M.
Bdi2017	+not	MNRAS 470, 1140, 2017
Bof2014	Ac -	Boffin, H.M.J., Pourbaix, D., Muzic, K., Ivanov, V.D., Kurtev, R., Beletsky, Y.,	2014A&A...561L...4B
Bof2014	+C	Mehner, A., Berger, J.P., Girard, J.H., & Mawet, D.
Bof2014		A&A 561, L4, 2014
Bug2013	Xr j	Burgasser, A.J., Sheppard, S.S., & Luhman, K.L.	2013ApJ...772..129B
Bug2013	+C	ApJ 772, 129, 2013
GEV2017	orb j	Garcia, E.V., Ammons, S.M., Salama, M., Crossfield, I., Bendek, E., Chilcote, J.,	2017ApJ...846...97G
GEV2017		Garrel, V., Graham, J.R., Kalas, P., Konopacky, Q., Lu, J., Macintosh, B., et al.
GEV2017		ApJ 846, 97, 2017
Kni2013	Ci j	Kniazev, A., Vaisanen, P., Muzic, K., Mehner, A., Boffin, H., Kurtev, R., Melo,C.,	2013ApJ...770..124K
Kni2013		Ivanov, V.D., Girard, J., Mawet, D., Schmidtobreick, L., Huelamo, N., et al.
Kni2013		ApJ 770, 124, 2013
Luh2013	Hw j	Luhman, K.L.	2013ApJ...767L...1L
Luh2013	+E+	ApJ 767, L1, 2013
Luh2013	+Xr

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16			0		1.5	15.50	15.90	L8 L/T	NPR	104918.81-531906.3
10493-5319	LUH 16		2013	1	313	1.5	15.50	15.90	L7.5 T0.5	NP R	104918.81-531906.3
10493-5319	LUH 16		2014	23	310	1.0	15.50	15.90	L7.5+T0.5	NP R	104918.81-531906.3
10493-5319	LUH 16		2016	93	186	0.3	15.50	15.90	L7.5+T0.5	NO R	104918.81-531906.3
10493-5319	LUH 16		2020	95	309	1.2	15.50	15.90	L7.5+T0.5	NO R	104918.81-531906.3

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WDS 10493-5319 LUH 16 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 10493-5319 LUH 16 : MEASURES

No records found.

WDS 10493-5319 : VIRTUAL EYEPIECE

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WDS 10493-5319 : ALADIN DSS IMAGE @ 10^h 49^m 18.81^s -53° 19' 06.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 10493-5319 LUH 16 : 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		10493-5319	LUH 16		309	1.2
Show		10477-5316	RST1528		14	1.5	16
Show		10488-5336	RST1529		52	3.8	18
Show		10519-5326	RST1533		38	4.0	25
Show		10464-5347	BRT3295		135	3.5	38
Show		10447-5311	B 1692		332	1.1	42
Show		10455-5349	SEE 124	AB	5	10.4	46
Show		10455-5349	COG 3	AC	353	37.5	46
Show		10508-5407	TDS7498		249	0.5	51
Show		10437-5306	TDS7437		14	1.9	53
Show		10447-5352	TDS7450		18	0.8	53
Show		10526-5405	NSN 287		278	3.9	55
Show		10461-5410	RST1525		63	1.0	58
Show		10522-5225	RST 515		151	4.3	60
Show		10501-5218	TDS7493		292	1.0	62
Show		10511-5421	RST1531		100	1.0	64
Show		10552-5243	TDS7554		48	3.0	65
Show		10567-5330	HJ 4386	AB	23	9.3	67
Show		10567-5330	HJ 4386	AC	343	17.3	67
Show		10541-5228	RST1537		208	0.4	67
Show		10553-5239	RST 516	AB	256	9.2	68
Show		10548-5234	TDS7549		24	0.4	68
Show		10438-5409	TDS7439		164	0.4	71
Show		10513-5431	BRT2055		156	3.1	73
Show		10523-5211	HU 1600	AB	337	1.8	73
Show		10523-5211	HU 1600	AC	239	29.9	73
Show		10575-5328	RST1544		45	2.0	75
Show		10530-5426	TDS7532		215	0.7	75
Show		10409-5316	B 1689		233	1.5	76
Show		10408-5323	HDS1526		152	0.6	77
Show		10410-5339	TDS7413		208	2.4	77
Show		10577-5302	TDS7577		75	2.1	77
Show		10431-5414	FIN 41		49	0.6	78
Show		10520-5434	BRT2056		96	2.5	79
Show		10498-5438	RST1530		262	3.0	79
Show		10406-5342	FIN 40		277	0.3	82
Show		10581-5345	RST1545		98	0.9	83
Show		10490-5443	RST2712		322	2.0	84
Show		10414-5406	HJ 4345		21	5.4	85
Show		10451-5438	TDS7453		102	7.8	87
Show		10570-5224	KPP 234		229	5.0	89
Show		10461-5154	RST 506		143	2.3	90
Show		10541-5200	BRT2057		80	4.2	91
Show		10399-5245	TDS7405		336	0.5	92
Show		10392-5323	BRT3294		104	2.5	92
Show		10483-5147	RST 511		106	6.9	93
Show		10512-5453	TDS7505		357	0.5	95
Show		10432-5439	TDS7431		206	2.5	97
Show		11000-5335	SEE 127		329	8.3	97
Show		10414-5426	RST1520		246	1.5	98
Show		10581-5420	HU 1601		10	0.3	99

WDS 10493-5319 : COMPONENTS

	A
B	pa=323.2° sep=0.95"

10493-5319 A

Componente originario normalizzato	AB		Coord arcsec 2000	104918.81-531906.3		Mag	15.5		Spectral class	L7.5 (very deep red)
PmRA	-176.00		PmDE	36.0

10493-5319 B

Componente originario normalizzato	AB		Coord arcsec 2000	104918.75-531905.5		Mag	15.9		Spectral class	T0.5 (brown dwarf)
Calc delta mag	0.4		Calc coord	yes