15343+1616 LIM 7

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.

Constellation

Serpens

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