15343+1616 LIM 7

15^h 34^m 17.06^s +16° 15' 46.7" P.A. 7.00 sep 0.1 mag 16.40,17.60 Sp T1.5+T5.5

Coord 2000	15343+1616	Discov num	LIM 7	Comp		Coord arcsec 2000	15 34 17.06 +16 15 46.7
Date first	2005	Date last	2015	Obs	8
Pa first	288	Pa last	6.6	P.A. Now (θ)	6.6°
Sep first	0.1	Sep last	0.119	Sep. Now (ρ)	0.119"
Mag pri	16.40	Mag sec	17.60	delta mag (ΔM)	1.2	Spectral class	T1.5+T5.5 (brown dwarf/brown dwarf)
Pri motion ra		Sec motion ra
Pri motion dec		Sec motion dec
Notes	N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Serpens

ORBITAL ELEMENTS

Period (P)	48y	± 39	Periastron (T)	70000d (2050.529y)		Semi-major axis (a)	130m	± 60
Eccentricity (e)	0.11	± 0.22	Inclination (i)	28°	± 15	Longitude of periastron (ω)	128°	± 42
Node (Ω)	132°	± 19	Notes	n		Reference	Dup2017
Equinox			Last observation	2015		Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	238.1	0.104
2001	248.4	0.105
2002	258.4	0.106
2003	268.0	0.109
2004	277.2	0.111
2005	286.0	0.114
2006	294.5	0.116
2007	302.6	0.118
2008	310.4	0.120
2009	318.1	0.121
2010	325.6	0.122
2011	333.0	0.123
2012	340.3	0.123
2013	347.7	0.123
2014	355.1	0.123
2015	2.5	0.123
2016	9.9	0.122
2017	17.3	0.122
2018	24.7	0.123
2019	32.1	0.123
2020	39.4	0.124
2021	46.6	0.125
2022	53.7	0.126
2023	60.6	0.128
2024	67.3	0.129
2025	73.8	0.131
2026	80.2	0.133
2027	86.4	0.135
2028	92.4	0.136
2029	98.4	0.138
2030	104.2	0.139

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

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

WDS 15343+1616 LIM 7 : NOTES

discov_num	notes	refcode
LIM 7	Liu et al. (2006) derive a mass ratio 0.80 +/- 0.05 and luminosity
	ratio 0.3 +/- 0.1 dex. Estimated distance is 36 pc, orbital period
	22-33y. Total mass (for ages 0.5, 1.0, and 5.0 Gyr) estimated at 60,
	85, and 145 Mjup, respectively. Spectral types are estimated as
	T1.5 +/- 0.5 and T5.5 +/- 0.5.	LiM2006

REFERENCES

refcode	metd	author	reference
Dup2017	A j	Dupuy, T.J. & Liu, M.C.	2017ApJS..231...15D
Dup2017	+orb	ApJS 231, 15, 2017
LiM2006	Ag j	Liu M.C., Leggett S.K., Golimowski D.A., Chiu K., Fan X., Geballe T.R.,	2006ApJ...647.1393L
LiM2006		Schneider D.P., & Brinkmann J.
LiM2006		ApJ 647, 1393, 2006

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15343+1616	LIM 7		2005	1	288	0.1	16.40	17.60	T1.5 T5.5	N K	153417.06+161546.7
15343+1616	LIM 7		2015	7	7	0.1	16.40	17.60	T1.5+T5.5	N K	153417.06+161546.7

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WDS 15343+1616 LIM 7 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15343+1616 LIM 7 : MEASURES

No records found.

WDS 15343+1616 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 15343+1616 : ALADIN DSS IMAGE @ 15^h 34^m 17.06^s +16° 15' 46.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15343+1616 LIM 7 : 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		15343+1616	LIM 7		7	0.1
Show		15358+1611	CVR 792		5	10.1	24
Show		15365+1607	UC 3033	AB	62	35.5	33
Show		15365+1607	DSG 18	Aa,Ab	320	1.0	33
Show		15361+1639	LDS4570		115	17.6	36
Show		15319+1623	A 2075	AB	95	0.5	36
Show		15309+1621	BPM 631		321	111.8	49
Show		15303+1543	HJ 254	AB	278	17.1	67
Show		15303+1543	HJ 254	BC	2	60.3	68
Show		15303+1543	HJ 254	BD	259	74.8	68
Show		15358+1720	BRT2421		52	4.0	68
Show		15384+1542	GWP2539		169	155.1	69
Show		15349+1501	SHN 201		-1	0.5	76
Show		15377+1719	SLW1118		63	47.5	81
Show		15326+1733	LEP 147		29	4.4	82
Show		15352+1456	LEO 33		261	1.5	82
Show		15310+1725	NSN 666		303	2.4	84
Show		15284+1559	SKF2725		208	1.5	86
Show		15399+1646	COU2510		35	0.2	87
Show		15374+1731	BPM 633		248	118.5	88
Show		15354+1743	LDS 977		351	17.6	89
Show		15372+1740	SLW1114		200	10.5	94
Show		15294+1722	BPM 630		14	100.5	97
Show		15294+1734	CBL 490		72	48.8	106
Show		15312+1439	UC 3018		38	50.9	107
Show		15304+1445	UC 3017		213	28.4	107
Show		15391+1452	BPM 635		73	117.5	109
Show		15427+1653	SLW1127		140	13.2	127
Show		15273+1738	A 2074		267	0.3	130
Show		15263+1716	CVR1630		185	4.9	130
Show		15368+1820	LDS4571		102	34.6	130
Show		15280+1442	STF1945	AB	314	40.9	131
Show		15280+1442	STF1945	AD	18	23.4	131
Show		15280+1442	STF1945	AE	53	146.5	131
Show		15280+1442	STF1945	AC	309	49.2	131
Show		15280+1442	STF1945	BC	281	9.2	131
Show		15255+1546	HEI 381		181	0.3	131
Show		15250+1611	GWP2524		301	35.8	134
Show		15317+1405	HO 549	AB	133	117.5	136
Show		15317+1405	HO 549	BC	241	0.9	137
Show		15426+1507	SLW1126		95	72.8	138
Show		15425+1506	CVR1643		252	3.9	139
Show		15323+1355	HEI 237		169	0.4	144
Show		15439+1700	BPM 638		237	56.9	145
Show		15272+1804	A 2073		126	0.1	149
Show		15435+1505	BPM 637		236	102.9	151
Show		15376+1352	CVR 796		133	21.9	151
Show		15266+1805	UC 3005		138	12.5	156
Show		15284+1405	GRV 906		13	37.5	156
Show		15444+1518	ROE 75		327	6.2	157
Show		15232+1614	NSN 789		44	17.2	161

WDS 15343+1616 : COMPONENTS

	A
B	pa=6.3° sep=0.12"

15343+1616 A

Componente originario normalizzato

Coord arcsec 2000

153417.06+161546.7

Mag

16.4

Spectral class

T1.5 (brown dwarf)

15343+1616 B

Componente originario normalizzato	AB		Coord arcsec 2000	153417.06+161546.8		Mag	17.6		Spectral class	T5.5 (brown dwarf)
Calc delta mag	1.2		Calc coord	yes