15348-2952 BUG 3
15h 34m 49.84s -29° 52' 27.4" P.A. 194.00 sep 0.2 mag 15.50,16.00 Sp T4.5+T5.0
| Coord 2000 |
15348-2952 |
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Discov num |
BUG 3 |
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Comp |
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Coord arcsec 2000 |
15 34 49.84 -29 52 27.4 |
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| Date first |
2000 |
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Date last |
2015 |
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Obs |
32 |
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| Pa first |
357 |
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Pa last |
194 |
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P.A. Now (θ) |
10° |
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| Sep first |
0.1 |
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Sep last |
0.213 |
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Sep. Now (ρ) |
0.166" |
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| Mag pri |
15.50 |
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Mag sec |
16.00 |
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delta mag (ΔM) |
0.5 |
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Spectral class |
T4.5+T5.0 (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) | 20.38y | ± 0.06 |
Periastron (T) | 62400d (2029.721y) | ± 900 |
Semi-major axis (a) | 213.92m | ± 0.27 |
| Eccentricity (e) | 0.0058 | ± 0.0028 |
Inclination (i) | 85.55° | ± 0.08 |
Longitude of periastron (ω) | 80° | ± 40 |
| Node (Ω) | 13.61° | ± 0.05 |
Notes | n | |
Reference | Dip2017 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
331.0 |
0.025 |
| 2001 |
2.9 |
0.083 |
| 2002 |
8.3 |
0.138 |
| 2003 |
10.8 |
0.181 |
| 2004 |
12.4 |
0.207 |
| 2005 |
13.8 |
0.213 |
| 2006 |
15.3 |
0.200 |
| 2007 |
17.1 |
0.168 |
| 2008 |
20.2 |
0.120 |
| 2009 |
28.7 |
0.061 |
| 2010 |
125.4 |
0.018 |
| 2011 |
181.3 |
0.073 |
| 2012 |
187.8 |
0.130 |
| 2013 |
190.5 |
0.176 |
| 2014 |
192.2 |
0.204 |
| 2015 |
193.7 |
0.214 |
| 2016 |
195.1 |
0.204 |
| 2017 |
196.8 |
0.175 |
| 2018 |
199.5 |
0.129 |
| 2019 |
206.1 |
0.073 |
| 2020 |
261.4 |
0.018 |
| 2021 |
358.1 |
0.060 |
| 2022 |
6.8 |
0.118 |
| 2023 |
10.0 |
0.166 |
| 2024 |
11.8 |
0.199 |
| 2025 |
13.3 |
0.213 |
| 2026 |
14.7 |
0.207 |
| 2027 |
16.3 |
0.182 |
| 2028 |
18.8 |
0.139 |
| 2029 |
24.0 |
0.084 |
| 2030 |
55.1 |
0.025 |
| 2031 |
174.8 |
0.050 |
| 2032 |
186.2 |
0.110 |
| 2033 |
189.7 |
0.160 |
| 2034 |
191.7 |
0.196 |
| 2035 |
193.1 |
0.213 |
| 2036 |
194.5 |
0.210 |
| 2037 |
196.1 |
0.188 |
| 2038 |
198.3 |
0.148 |
| 2039 |
202.7 |
0.095 |
| 2040 |
221.2 |
0.036 |
| 2041 |
347.6 |
0.038 |
| 2042 |
4.8 |
0.097 |
| 2043 |
9.0 |
0.150 |
| 2044 |
11.2 |
0.189 |
| 2045 |
12.8 |
0.210 |
| 2046 |
14.1 |
0.212 |
| 2047 |
15.7 |
0.194 |
| 2048 |
17.7 |
0.157 |
| 2049 |
21.4 |
0.106 |
| 2050 |
34.0 |
0.046 |
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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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