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 |
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Discov num |
CHR 225 |
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Comp |
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Coord arcsec 2000 |
05 16 10.56 -11 21 09.2 |
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Date first |
1989 |
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Date last |
2021 |
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Obs |
7 |
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Pa first |
52 |
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Pa last |
229.6 |
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P.A. Now (θ) |
229.6° |
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Sep first |
0.1 |
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Sep last |
0.056 |
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Sep. Now (ρ) |
0.056" |
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Mag pri |
6.50 |
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Mag sec |
7.10 |
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delta mag (ΔM) |
0.6 |
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Spectral class |
G8III+A3: (yellow/white) |
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Pri motion ra |
-001 |
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Sec motion ra |
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Pri motion dec |
+004 |
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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 |
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Constellation |
Lepus |
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SAO |
150286 |
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HIP |
24560 |
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Tycho2 |
5339-01783-1 |
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Gaia DR2 |
2989889947800291328 |
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HD |
34318 |
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GC |
6448 |
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BD |
BD-11 1117 |
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Distance |
228.31 |
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Distance ly |
744.75 |
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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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