22522-1730 RED 12

Coord 2000	22522-1730		Discov num	RED  12		Comp			Coord arcsec 2000	22 52 10.73 -17 30 13.4
Date first	2005		Date last	2013		Obs	13
Pa first	354		Pa last	358.2		P.A. Now (θ)	354.5°
Sep first	0.1		Sep last	0.142		Sep. Now (ρ)	0.132"
Mag pri	15.43		Mag sec	16.55		delta mag (ΔM)	1.12		Spectral class	L6+T3.5 (very deep red/brown dwarf)
Pri motion ra	+405		Sec motion ra
Pri motion dec	+154		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

Aquarius

Period (P)	8.832y	± 0.027	Periastron (T)	60727d (2025.141y)	± 23	Semi-major axis (a)	123.2m	± 0.8
Eccentricity (e)	0.335	± 0.009	Inclination (i)	108.8°	± 0.5	Longitude of periastron (ω)	314.6°	± 1.2
Node (Ω)	178°	± 0.3	Notes	n		Reference	Dup2017
Equinox			Last observation	2013		Grade	3	(1=Definitive, 9=Indet.)

label theta rho 2000 158.3 0.079 2001 103.2 0.046 2002 37.9 0.074 2003 16.9 0.119 2004 6.4 0.146 2005 357.8 0.143 2006 345.0 0.096 2007 253.3 0.029 2008 178.7 0.088 2009 152.9 0.073 2010 88.3 0.046 2011 32.7 0.082 2012 14.8 0.125 2013 5.0 0.148 2014 356.2 0.138 2015 341.1 0.084 2016 222.4 0.037 2017 174.7 0.091 2018 146.4 0.066 2019 74.2 0.049 2020 28.4 0.090 2021 12.9 0.131 2022 3.6 0.149 2023 354.5 0.132 2024 335.7 0.070 2025 204.9 0.050 2026 170.9 0.091 2027 138.4 0.060 2028 61.9 0.053 2029 24.8 0.098 2030 11.1 0.136		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic