05162-1121 CHR 225 (HD 34318)
05h 16m 10.56s -11° 21' 09.2" P.A. 230.00 sep 0.1 mag 6.50,7.10 Sp G8III+A3: dist. 228.31 pc (744.75 l.y.)
| Coord 2000 |
05162-1121 |
|
Discov num |
CHR 225 |
|
Comp |
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|
Coord arcsec 2000 |
05 16 10.56 -11 21 09.2 |
|
| Date first |
1989 |
|
Date last |
2021 |
|
Obs |
7 |
|
| Pa first |
52 |
|
Pa last |
229.6 |
|
P.A. Now (θ) |
229.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.056 |
|
Sep. Now (ρ) |
0.056" |
|
| Mag pri |
6.50 |
|
Mag sec |
7.10 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
G8III+A3: (yellow/white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
+004 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 34318 |
|
Constellation |
Lepus |
|
SAO |
150286 |
|
HIP |
24560 |
|
| Tycho2 |
5339-01783-1 |
|
Gaia DR2 |
2989889947800291328 |
|
HD |
34318 |
|
GC |
6448 |
|
| BD |
BD-11 1117 |
|
Distance |
228.31 |
|
Distance ly |
744.75 |
|
ORBITAL ELEMENTS
| Period (P) | 3909.7d (10.7y) | ± 6 |
Periastron (T) | 46423.9m (1985.982y) | ± 5.9 |
Semi-major axis (a) | 0.0349a | ± 0.0022 |
| Eccentricity (e) | 0.904 | ± 0.004 |
Inclination (i) | 39° | ± 10 |
Longitude of periastron (ω) | 32° | ± 1.4 |
| Node (Ω) | 31° | ± 20 |
Notes | n | |
Reference | Doc2014h | |
| Equinox | | |
Last observation | 1993 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
229.5 |
0.058 |
| 2001 |
233.3 |
0.062 |
| 2002 |
236.8 |
0.063 |
| 2003 |
240.3 |
0.060 |
| 2004 |
244.4 |
0.055 |
| 2005 |
249.6 |
0.047 |
| 2006 |
258.0 |
0.034 |
| 2007 |
285.3 |
0.014 |
| 2008 |
207.6 |
0.023 |
| 2009 |
220.5 |
0.042 |
| 2010 |
226.5 |
0.053 |
| 2011 |
230.7 |
0.060 |
| 2012 |
234.3 |
0.062 |
| 2013 |
237.8 |
0.062 |
| 2014 |
241.5 |
0.059 |
| 2015 |
245.7 |
0.053 |
| 2016 |
251.6 |
0.043 |
| 2017 |
262.1 |
0.029 |
| 2018 |
339.3 |
0.005 |
| 2019 |
213.2 |
0.030 |
| 2020 |
222.6 |
0.046 |
| 2021 |
227.8 |
0.056 |
| 2022 |
231.8 |
0.061 |
| 2023 |
235.4 |
0.063 |
| 2024 |
238.8 |
0.062 |
| 2025 |
242.6 |
0.058 |
| 2026 |
247.2 |
0.051 |
| 2027 |
253.9 |
0.040 |
| 2028 |
268.1 |
0.023 |
| 2029 |
185.8 |
0.010 |
| 2030 |
216.9 |
0.036 |
|
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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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