02390-5811 HDS 345
02h 39m 01.19s -58° 11' 14.0" sep 0.1 mag 10.08,10.69 Sp M0Ve dist. 16.84 pc (54.93 l.y.)
| Coord 2000 |
02390-5811 |
|
Discov num |
HDS 345 |
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Comp |
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Coord arcsec 2000 |
02 39 01.19 -58 11 14.0 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
17 |
|
| Pa first |
300 |
|
Pa last |
0.4 |
|
P.A. Now (θ) |
309.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.143 |
|
Sep. Now (ρ) |
0.226" |
|
| Mag pri |
10.08 |
|
Mag sec |
10.69 |
|
delta mag (ΔM) |
0.61 |
|
Spectral class |
M0Ve (red) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
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| Pri motion dec |
+030 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Horologium |
|
HIP |
12351 |
|
Tycho2 |
8490-01201-1 |
|
Gaia DR2 |
4726387007013852672 |
|
| GL |
GJ 1049 |
|
CD |
CD-58 538 |
|
CP |
CP-58 223 |
|
Distance |
16.84 |
|
| Distance ly |
54.93 |
|
ORBITAL ELEMENTS
| Period (P) | 4.019y | |
Periastron (T) | 2017.012y | |
Semi-major axis (a) | 0.15a | |
| Eccentricity (e) | 0.507 | |
Inclination (i) | 153.2° | |
Longitude of periastron (ω) | 180.3° | |
| Node (Ω) | 308.4° | |
Notes | | |
Reference | Tok2017c | |
| Equinox | 2000 | |
Last observation | 2017 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
268.4 |
0.169 |
| 2001 |
110.1 |
0.075 |
| 2002 |
341.4 |
0.182 |
| 2003 |
306.5 |
0.226 |
| 2004 |
269.4 |
0.171 |
| 2005 |
115.4 |
0.074 |
| 2006 |
342.3 |
0.180 |
| 2007 |
307.1 |
0.226 |
| 2008 |
270.4 |
0.173 |
| 2009 |
120.8 |
0.074 |
| 2010 |
343.2 |
0.178 |
| 2011 |
307.6 |
0.226 |
| 2012 |
271.4 |
0.175 |
| 2013 |
126.1 |
0.074 |
| 2014 |
344.1 |
0.176 |
| 2015 |
308.2 |
0.226 |
| 2016 |
272.3 |
0.176 |
| 2017 |
131.5 |
0.074 |
| 2018 |
345.1 |
0.174 |
| 2019 |
308.8 |
0.226 |
| 2020 |
273.3 |
0.178 |
| 2021 |
136.9 |
0.074 |
| 2022 |
346.1 |
0.172 |
| 2023 |
309.4 |
0.226 |
| 2024 |
274.2 |
0.180 |
| 2025 |
142.3 |
0.074 |
| 2026 |
347.1 |
0.170 |
| 2027 |
309.9 |
0.226 |
| 2028 |
275.1 |
0.182 |
| 2029 |
147.6 |
0.075 |
| 2030 |
348.1 |
0.168 |
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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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