15348-2952 BUG   3

Coord 2000	15348-2952		Discov num	BUG   3		Comp			Coord arcsec 2000	15 34 49.84 -29 52 27.4
Date first	2000		Date last	2009		Obs	16
Pa first	357		Pa last	39		P.A. Now (θ)	194.4°
Sep first	0.1		Sep last	0.0		Sep. Now (ρ)	0.25"
Mag pri	15.50		Mag sec	16.00		delta mag (ΔM)	0.5		Spectral class	T5.0+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)

This double is physical.

Precise pa	38.5		Precise sep	0.039		Constellation	Libra		last precise pa	38.5
last precise sep	0.039

Period (P)	23.1y	± 4	Periastron (T)	2006.4y	± 3	Semi-major axis (a)	0.234a	± 0.03
Eccentricity (e)	0.1	± 0.09	Inclination (i)	85.6°	± 0.4	Longitude of periastron (ω)	25°	± 90
Node (Ω)	13.4°	± 0.3	Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2009

label rho theta 2000 0.026 327.6 2001 0.079 1.1 2002 0.132 7.2 2003 0.175 10.0 2004 0.203 11.8 2005 0.213 13.3 2006 0.201 14.8 2007 0.170 16.6 2008 0.122 19.7 2009 0.063 28.1 2010 0.018 119.5 2011 0.072 180.1 2012 0.131 186.8 2013 0.182 189.5 2014 0.220 191.2 2015 0.245 192.4 2016 0.255 193.4 2017 0.250 194.4 2018 0.232 195.5 2019 0.201 196.9 2020 0.159 198.9 2021 0.108 202.6 2022 0.053 214.0 2023 0.022 315.9 2024 0.074 360.0 2025 0.127 6.8 2026 0.172 9.8 2027 0.201 11.6 2028 0.213 13.1 2029 0.203 14.6 2030 0.174 16.4 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15348-2952	BUG 3		2000	1	1	0.1	15.50	16.00		DK	153449.84-295227.4
15348-2952	BUG 3		2006	3	15	0.2	15.50	16.00		DK	153449.84-295227.4
15348-2952	BUG 3		2008	12	21	0.1	15.50	16.00	T5.0 T5.5	NODK	153449.84-295227.4
15348-2952	BUG 3		2009	16	39	0.0	15.50	16.00	T5.0+T5.5	NODK	153449.84-295227.4

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