20526-1609 SPF 2
20h 52m 35.31s -16° 09' 29.8" P.A. 124.00 sep 0.1 mag 15.57,16.30 Sp L6.0+T2.0
Coord 2000 |
20526-1609 |
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Discov num |
SPF 2 |
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Comp |
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Coord arcsec 2000 |
20 52 35.31 -16 09 29.8 |
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Date first |
2005 |
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Date last |
2014 |
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Obs |
18 |
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Pa first |
13 |
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Pa last |
124 |
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P.A. Now (θ) |
124° |
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Sep first |
0.1 |
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Sep last |
0.146 |
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Sep. Now (ρ) |
0.146" |
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Mag pri |
15.57 |
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Mag sec |
16.30 |
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delta mag (ΔM) |
0.73 |
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Spectral class |
L6.0+T2.0 (very deep red/brown dwarf) |
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Pri motion ra |
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Sec motion ra |
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Pri motion dec |
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Sec motion dec |
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Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
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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 |
Capricornus |
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ORBITAL ELEMENTS
Period (P) | 32y | |
Periastron (T) | 53654.31d (2005.776y) | |
Semi-major axis (a) | 0.147a | |
Eccentricity (e) | 0.005 | |
Inclination (i) | 45° | |
Longitude of periastron (ω) | 98° | |
Node (Ω) | 327° | |
Notes | n | |
Reference | BGg2015 | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
351.2 |
0.136 |
2001 |
1.1 |
0.128 |
2002 |
12.4 |
0.119 |
2003 |
25.4 |
0.111 |
2004 |
40.0 |
0.106 |
2005 |
55.8 |
0.103 |
2006 |
71.7 |
0.105 |
2007 |
86.6 |
0.110 |
2008 |
99.9 |
0.118 |
2009 |
111.4 |
0.127 |
2010 |
121.5 |
0.135 |
2011 |
130.5 |
0.141 |
2012 |
138.9 |
0.145 |
2013 |
146.9 |
0.147 |
2014 |
154.9 |
0.146 |
2015 |
163.2 |
0.142 |
2016 |
172.1 |
0.136 |
2017 |
182.0 |
0.128 |
2018 |
193.2 |
0.120 |
2019 |
206.1 |
0.112 |
2020 |
220.6 |
0.107 |
2021 |
236.1 |
0.104 |
2022 |
251.7 |
0.106 |
2023 |
266.3 |
0.111 |
2024 |
279.3 |
0.119 |
2025 |
290.7 |
0.127 |
2026 |
300.7 |
0.135 |
2027 |
309.7 |
0.141 |
2028 |
318.1 |
0.146 |
2029 |
326.1 |
0.147 |
2030 |
334.1 |
0.146 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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