07200-0847 BUG 17
07h 20m 03.20s -08° 46' 51.2" P.A. 64.00 sep 0.4 mag 9.47,14.20 Sp M9.5+T5.5
Coord 2000 |
07200-0847 |
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Discov num |
BUG 17 |
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Comp |
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Coord arcsec 2000 |
07 20 03.20 -08 46 51.2 |
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Date first |
2014 |
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Date last |
2019 |
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Obs |
16 |
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Pa first |
270 |
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Pa last |
63.5 |
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P.A. Now (θ) |
63.5° |
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Sep first |
0.1 |
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Sep last |
0.381 |
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Sep. Now (ρ) |
0.381" |
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Mag pri |
9.47 |
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Mag sec |
14.20 |
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delta mag (ΔM) |
4.73 |
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Spectral class |
M9.5+T5.5 (red/brown dwarf) |
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Pri motion ra |
-036 |
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Sec motion ra |
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Pri motion dec |
-102 |
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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) | 8.263735y | |
Periastron (T) | 2015.718841y | |
Semi-major axis (a) | 0.3211a | |
Eccentricity (e) | 0.248445 | |
Inclination (i) | 106.5003° | |
Longitude of periastron (ω) | 182.7214° | |
Node (Ω) | 59.415° | |
Notes | n | |
Reference | Kpp2020f | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
213.8 |
0.150 |
2001 |
97.4 |
0.141 |
2002 |
70.6 |
0.314 |
2003 |
61.1 |
0.397 |
2004 |
53.1 |
0.370 |
2005 |
39.7 |
0.238 |
2006 |
325.9 |
0.086 |
2007 |
248.9 |
0.218 |
2008 |
225.0 |
0.193 |
2009 |
121.4 |
0.098 |
2010 |
74.3 |
0.275 |
2011 |
63.3 |
0.386 |
2012 |
55.4 |
0.388 |
2013 |
44.6 |
0.281 |
2014 |
3.3 |
0.108 |
2015 |
257.1 |
0.182 |
2016 |
232.4 |
0.226 |
2017 |
163.5 |
0.085 |
2018 |
79.4 |
0.230 |
2019 |
65.6 |
0.367 |
2020 |
57.5 |
0.398 |
2021 |
48.2 |
0.319 |
2022 |
23.6 |
0.152 |
2023 |
270.0 |
0.138 |
2024 |
238.3 |
0.241 |
2025 |
198.7 |
0.114 |
2026 |
87.3 |
0.181 |
2027 |
68.1 |
0.341 |
2028 |
59.5 |
0.401 |
2029 |
51.1 |
0.350 |
2030 |
34.3 |
0.200 |
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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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