04238-0414 BUG 7

Coord 2000	04238-0414		Discov num	BUG   7		Comp			Coord arcsec 2000	04 23 48.58 -04 14 03.5
Date first	2004		Date last	2008		Obs	4
Pa first	20		Pa last	183.1		P.A. Now (θ)	183.1°
Sep first	0.2		Sep last	0.083		Sep. Now (ρ)	0.083"
Mag pri	15.80		Mag sec	16.33		delta mag (ΔM)	0.53		Spectral class	L6.5+T2 (very deep red/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

Eridanus

Period (P)	12.3y	± 0.06	Periastron (T)	58977d (2020.349y)	± 20	Semi-major axis (a)	162.6m	± 0.5
Eccentricity (e)	0.27	± 0.008	Inclination (i)	65.2°	± 0.3	Longitude of periastron (ω)	97.5°	± 0.3
Node (Ω)	34.33°	± 0.23	Notes	n		Reference	Dup2017
Equinox			Last observation	2010		Grade	5	(1=Definitive, 9=Indet.)

label theta rho 2000 253.6 0.114 2001 285.0 0.090 2002 325.6 0.092 2003 354.9 0.119 2004 12.4 0.149 2005 25.0 0.164 2006 37.2 0.150 2007 57.2 0.099 2008 135.9 0.051 2009 198.2 0.109 2010 216.4 0.148 2011 230.1 0.148 2012 247.0 0.123 2013 274.0 0.095 2014 313.8 0.088 2015 347.7 0.110 2016 7.9 0.141 2017 21.4 0.161 2018 33.3 0.158 2019 49.3 0.118 2020 99.8 0.054 2021 188.6 0.090 2022 211.9 0.141 2023 225.9 0.151 2024 241.2 0.132 2025 264.3 0.103 2026 301.4 0.086 2027 339.2 0.101 2028 2.9 0.132 2029 17.8 0.157 2030 29.7 0.162		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic