10493-5319 LUH 16
10h 49m 18.81s -53° 19' 06.3" P.A. 309.00 sep 1.2 mag 15.50,15.90 Sp L7.5+T0.5
| Coord 2000 |
10493-5319 |
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Discov num |
LUH 16 |
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Comp |
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Coord arcsec 2000 |
10 49 18.81 -53 19 06.3 |
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| Date first |
1984 |
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Date last |
2020 |
|
Obs |
96 |
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| Pa first |
321 |
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Pa last |
308.6 |
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P.A. Now (θ) |
308.6° |
|
| Sep first |
1.8 |
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Sep last |
1.218 |
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Sep. Now (ρ) |
1.218" |
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| Mag pri |
15.50 |
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Mag sec |
15.90 |
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delta mag (ΔM) |
0.4 |
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Spectral class |
L7.5+T0.5 (very deep red/brown dwarf) |
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| Pri motion ra |
-176 |
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Sec motion ra |
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| Pri motion dec |
+036 |
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Sec motion dec |
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| Notes |
N
O
R
(See Notes, Orbital solution, Red magnitudes) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vela |
|
Gaia DR2 |
5353625847691839488 |
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ORBITAL ELEMENTS
| Period (P) | 27.4y | ± 0.5 |
Periastron (T) | 48030d (1990.378y) | ± 570 |
Semi-major axis (a) | 1.77a | ± 0.05 |
| Eccentricity (e) | 0.35 | ± 0.04 |
Inclination (i) | 79.5° | ± 0.6 |
Longitude of periastron (ω) | 130.4° | ± 7 |
| Node (Ω) | 130.12° | ± 0.24 |
Notes | n | |
Reference | GEV2017 | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
88.6 |
0.604 |
| 2001 |
102.4 |
0.852 |
| 2002 |
109.8 |
1.107 |
| 2003 |
114.5 |
1.349 |
| 2004 |
117.8 |
1.568 |
| 2005 |
120.4 |
1.757 |
| 2006 |
122.4 |
1.911 |
| 2007 |
124.2 |
2.025 |
| 2008 |
125.9 |
2.093 |
| 2009 |
127.5 |
2.109 |
| 2010 |
129.1 |
2.067 |
| 2011 |
130.8 |
1.958 |
| 2012 |
132.8 |
1.777 |
| 2013 |
135.4 |
1.514 |
| 2014 |
139.4 |
1.165 |
| 2015 |
147.5 |
0.735 |
| 2016 |
181.7 |
0.290 |
| 2017 |
280.9 |
0.416 |
| 2018 |
300.4 |
0.853 |
| 2019 |
307.3 |
1.165 |
| 2020 |
311.8 |
1.299 |
| 2021 |
316.0 |
1.275 |
| 2022 |
320.8 |
1.137 |
| 2023 |
327.4 |
0.930 |
| 2024 |
338.3 |
0.691 |
| 2025 |
0.1 |
0.474 |
| 2026 |
41.9 |
0.387 |
| 2027 |
79.6 |
0.516 |
| 2028 |
98.0 |
0.750 |
| 2029 |
107.3 |
1.006 |
| 2030 |
112.8 |
1.255 |
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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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