13344-4224 SEE 182 (HD 117940)
13h 34m 25.40s -42° 24' 16.1" P.A. 89.00 sep 0.1 mag 9.25,9.80 Sp F7V
| Coord 2000 |
13344-4224 |
|
Discov num |
SEE 182 |
|
Comp |
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Coord arcsec 2000 |
13 34 25.40 -42 24 16.1 |
|
| Date first |
1897 |
|
Date last |
2020 |
|
Obs |
11 |
|
| Pa first |
150 |
|
Pa last |
88.5 |
|
P.A. Now (θ) |
88.5° |
|
| Sep first |
1.1 |
|
Sep last |
0.111 |
|
Sep. Now (ρ) |
0.111" |
|
| Mag pri |
9.25 |
|
Mag sec |
9.80 |
|
delta mag (ΔM) |
0.55 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
-045 |
|
Sec motion ra |
-045 |
|
| Pri motion dec |
-051 |
|
Sec motion dec |
-051 |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 117940 |
|
Constellation |
Centaurus |
|
SAO |
224255 |
|
Tycho2 |
7796-02195-1 |
|
| Gaia DR2 |
6112621404406361856 |
|
HD |
117940 |
|
DM |
CP-41 6390 |
|
ORBITAL ELEMENTS
| Period (P) | 480y | |
Periastron (T) | 2017.29y | |
Semi-major axis (a) | 1.073a | |
| Eccentricity (e) | 0.983 | |
Inclination (i) | 55° | |
Longitude of periastron (ω) | 288° | |
| Node (Ω) | 28.1° | |
Notes | | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
279.6 |
0.012 |
| 2001 |
119.8 |
0.345 |
| 2002 |
166.9 |
0.513 |
| 2003 |
146.3 |
1.315 |
| 2004 |
292.2 |
0.011 |
| 2005 |
108.2 |
0.210 |
| 2006 |
162.6 |
0.697 |
| 2007 |
126.5 |
0.488 |
| 2008 |
227.6 |
0.027 |
| 2009 |
162.1 |
0.721 |
| 2010 |
174.7 |
0.299 |
| 2011 |
177.5 |
0.249 |
| 2012 |
179.2 |
0.225 |
| 2013 |
181.2 |
0.199 |
| 2014 |
183.9 |
0.170 |
| 2015 |
187.8 |
0.136 |
| 2016 |
194.7 |
0.095 |
| 2017 |
220.9 |
0.032 |
| 2018 |
57.4 |
0.053 |
| 2019 |
77.6 |
0.083 |
| 2020 |
87.7 |
0.108 |
| 2021 |
94.1 |
0.130 |
| 2022 |
98.8 |
0.150 |
| 2023 |
102.3 |
0.169 |
| 2024 |
105.2 |
0.187 |
| 2025 |
107.6 |
0.205 |
| 2026 |
137.6 |
0.923 |
| 2027 |
111.3 |
0.237 |
| 2028 |
293.7 |
0.011 |
| 2029 |
114.4 |
0.270 |
| 2030 |
115.5 |
0.283 |
|
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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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