10212-0304 BUG 10
10h 21m 09.69s -03° 04' 19.7" P.A. 164.00 sep 0.2 mag 17.81,17.87 Sp T1+T5
Coord 2000 |
10212-0304 |
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Discov num |
BUG 10 |
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Comp |
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Coord arcsec 2000 |
10 21 09.69 -03 04 19.7 |
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Date first |
2004 |
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Date last |
2013 |
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Obs |
9 |
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Pa first |
245 |
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Pa last |
163.8 |
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P.A. Now (θ) |
163.8° |
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Sep first |
0.2 |
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Sep last |
0.153 |
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Sep. Now (ρ) |
0.153" |
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Mag pri |
17.81 |
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Mag sec |
17.87 |
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delta mag (ΔM) |
0.06 |
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Spectral class |
T1+T5 (brown dwarf/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
ORBITAL ELEMENTS
Period (P) | 75y | ± 17 |
Periastron (T) | 82000d (2083.384y) | ± 6000 |
Semi-major axis (a) | 224m | ± 28 |
Eccentricity (e) | 0.31 | ± 0.07 |
Inclination (i) | 161° | ± 7 |
Longitude of periastron (ω) | 70° | ± 120 |
Node (Ω) | 260° | ± 100 |
Notes | n | |
Reference | Dup2017 | |
Equinox | | |
Last observation | 2013 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
261.0 |
0.184 |
2001 |
254.3 |
0.178 |
2002 |
247.3 |
0.172 |
2003 |
239.8 |
0.167 |
2004 |
231.8 |
0.162 |
2005 |
223.2 |
0.157 |
2006 |
214.2 |
0.153 |
2007 |
204.7 |
0.150 |
2008 |
194.9 |
0.148 |
2009 |
184.9 |
0.147 |
2010 |
174.9 |
0.147 |
2011 |
165.0 |
0.149 |
2012 |
155.5 |
0.153 |
2013 |
146.5 |
0.157 |
2014 |
138.0 |
0.162 |
2015 |
130.1 |
0.168 |
2016 |
122.7 |
0.175 |
2017 |
115.9 |
0.182 |
2018 |
109.6 |
0.188 |
2019 |
103.7 |
0.195 |
2020 |
98.2 |
0.202 |
2021 |
93.1 |
0.209 |
2022 |
88.3 |
0.215 |
2023 |
83.7 |
0.221 |
2024 |
79.4 |
0.227 |
2025 |
75.3 |
0.233 |
2026 |
71.4 |
0.238 |
2027 |
67.7 |
0.243 |
2028 |
64.1 |
0.248 |
2029 |
60.6 |
0.252 |
2030 |
57.3 |
0.256 |
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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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