13306-4238 HDS 1891 (HD 117383)
13h 30m 36.43s -42° 37' 50.5" P.A. 7.00 sep 0.2 mag 10.01,11.09 Sp K4V dist. 32.66 pc (106.54 l.y.)
| Coord 2000 |
13306-4238 |
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Discov num |
HDS1891 |
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Comp |
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Coord arcsec 2000 |
13 30 36.43 -42 37 50.5 |
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| Date first |
1991 |
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Date last |
2021 |
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Obs |
11 |
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| Pa first |
126 |
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Pa last |
6.7 |
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P.A. Now (θ) |
324.4° |
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| Sep first |
0.2 |
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Sep last |
0.205 |
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Sep. Now (ρ) |
0.204" |
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| Mag pri |
10.01 |
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Mag sec |
11.09 |
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delta mag (ΔM) |
1.08 |
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Spectral class |
K4V (yellow-orange) |
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| Pri motion ra |
-132 |
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Sec motion ra |
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| Pri motion dec |
-115 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 117383 |
|
Constellation |
Centaurus |
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HIP |
65906 |
|
Tycho2 |
7796-00866-1 |
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| Gaia DR2 |
6088772073787597568 |
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HD |
117383 |
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CD |
CD-41 7889 |
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CP |
CP-41 6366 |
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| Distance |
32.66 |
|
Distance ly |
106.54 |
|
ORBITAL ELEMENTS
| Period (P) | 12.51y | ± 0.05 |
Periastron (T) | 2014.76y | ± 1.38 |
Semi-major axis (a) | 0.185a | ± 0.027 |
| Eccentricity (e) | 0.192 | ± 0.046 |
Inclination (i) | 162.6° | ± 27.1 |
Longitude of periastron (ω) | 273.2° | ± 157.7 |
| Node (Ω) | 99.9° | ± 103.7 |
Notes | | |
Reference | Tok2016e | |
| Equinox | 2000 | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
273.4 |
0.176 |
| 2001 |
239.8 |
0.156 |
| 2002 |
197.9 |
0.143 |
| 2003 |
153.5 |
0.149 |
| 2004 |
116.0 |
0.167 |
| 2005 |
86.1 |
0.185 |
| 2006 |
61.0 |
0.198 |
| 2007 |
38.4 |
0.206 |
| 2008 |
17.1 |
0.210 |
| 2009 |
356.2 |
0.210 |
| 2010 |
335.1 |
0.207 |
| 2011 |
312.8 |
0.199 |
| 2012 |
287.8 |
0.185 |
| 2013 |
257.9 |
0.166 |
| 2014 |
220.2 |
0.148 |
| 2015 |
175.7 |
0.143 |
| 2016 |
134.1 |
0.157 |
| 2017 |
100.6 |
0.176 |
| 2018 |
73.4 |
0.192 |
| 2019 |
49.7 |
0.202 |
| 2020 |
27.8 |
0.208 |
| 2021 |
6.9 |
0.210 |
| 2022 |
346.0 |
0.209 |
| 2023 |
324.4 |
0.204 |
| 2024 |
301.0 |
0.193 |
| 2025 |
274.0 |
0.176 |
| 2026 |
240.5 |
0.156 |
| 2027 |
198.8 |
0.143 |
| 2028 |
154.4 |
0.148 |
| 2029 |
116.7 |
0.166 |
| 2030 |
86.7 |
0.184 |
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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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