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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:16:26
WDS:
CHR180
WDS ID/Discoverer
P:
219.200
Orbital period (years)
a:
0.745
Semi-major axis (arcseconds)
i:
44.5
Inclination (degrees)
Ω:
22.2
Longitude of ascending node (degrees)
T:
2201.700
Epoch of periastron passage (year)
e:
0.686
Eccentricity
ω:
273.3
Longitude of periastron (degrees)
Start-Year:
1916.0
Year
End-Year:
2134.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
131532.05+405118.6
Epoch-2000 right ascension and declination
WDS-ID:
13155+4051
WDS designation
Discoverer Code:
CHR180
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
115271
HD catalog number
Hipparcos number:
64692
Hipparcos catalog number
V1:
5.87
Magnitude of the primary
V2:
9.48
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2010
Date of last observation
Orbit grade:
5
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.721 71.1
-------------------------
1916.0 0.851 142.9
1917.0 0.849 143.5
1918.0 0.846 144.2
1919.0 0.843 144.8
1920.0 0.839 145.5
1921.0 0.836 146.2
1922.0 0.833 146.9
1923.0 0.829 147.5
1924.0 0.826 148.2
1925.0 0.822 148.9
1926.0 0.818 149.6
1927.0 0.814 150.3
1928.0 0.810 151.1
1929.0 0.806 151.8
1930.0 0.802 152.5
1931.0 0.797 153.2
1932.0 0.793 154.0
1933.0 0.788 154.8
1934.0 0.783 155.5
1935.0 0.778 156.3
1936.0 0.773 157.1
1937.0 0.767 157.9
1938.0 0.762 158.7
1939.0 0.756 159.5
1940.0 0.750 160.3
1941.0 0.744 161.2
1942.0 0.738 162.1
1943.0 0.731 162.9
1944.0 0.725 163.8
1945.0 0.718 164.7
1946.0 0.710 165.7
1947.0 0.703 166.6
1948.0 0.695 167.6
1949.0 0.687 168.6
1950.0 0.679 169.6
1951.0 0.671 170.6
1952.0 0.662 171.7
1953.0 0.653 172.8
1954.0 0.643 173.9
1955.0 0.633 175.1
1956.0 0.623 176.3
1957.0 0.612 177.5
1958.0 0.601 178.8
1959.0 0.590 180.1
1960.0 0.578 181.5
1961.0 0.566 183.0
1962.0 0.553 184.5
1963.0 0.539 186.1
1964.0 0.525 187.7
1965.0 0.510 189.5
1966.0 0.494 191.4
1967.0 0.478 193.4
1968.0 0.461 195.5
1969.0 0.443 197.8
1970.0 0.424 200.4
1971.0 0.404 203.1
1972.0 0.383 206.2
1973.0 0.361 209.6
1974.0 0.338 213.5
1975.0 0.314 217.9
1976.0 0.289 223.1
1977.0 0.263 229.4
1978.0 0.238 236.9
1979.0 0.213 246.3
1980.0 0.192 257.9
1981.0 0.175 272.1
1982.0 0.167 288.3
1983.0 0.169 305.2
1984.0 0.181 320.8
1985.0 0.199 334.0
1986.0 0.222 344.8
1987.0 0.246 353.4
1988.0 0.271 0.5
1989.0 0.296 6.4
1990.0 0.319 11.4
1991.0 0.342 15.8
1992.0 0.364 19.6
1993.0 0.384 23.0
1994.0 0.403 26.0
1995.0 0.422 28.8
1996.0 0.439 31.3
1997.0 0.455 33.7
1998.0 0.471 35.9
1999.0 0.486 38.0
2000.0 0.500 39.9
2001.0 0.513 41.8
2002.0 0.526 43.5
2003.0 0.538 45.2
2004.0 0.550 46.8
2005.0 0.562 48.3
2006.0 0.572 49.8
2007.0 0.583 51.2
2008.0 0.593 52.6
2009.0 0.603 53.9
2010.0 0.612 55.2
2011.0 0.621 56.4
2012.0 0.630 57.6
2013.0 0.638 58.8
2014.0 0.646 60.0
2015.0 0.654 61.1
2016.0 0.662 62.2
2017.0 0.669 63.2
2018.0 0.676 64.3
2019.0 0.683 65.3
2020.0 0.690 66.3
2021.0 0.697 67.3
2022.0 0.703 68.3
2023.0 0.709 69.2
2024.0 0.715 70.1
2025.0 0.721 71.1
2026.0 0.727 72.0
2027.0 0.732 72.9
2028.0 0.738 73.7
2029.0 0.743 74.6
2030.0 0.748 75.4
2031.0 0.753 76.3
2032.0 0.758 77.1
2033.0 0.763 77.9
2034.0 0.768 78.7
2035.0 0.772 79.5
2036.0 0.777 80.3
2037.0 0.781 81.1
2038.0 0.785 81.9
2039.0 0.789 82.6
2040.0 0.793 83.4
2041.0 0.797 84.1
2042.0 0.801 84.9
2043.0 0.804 85.6
2044.0 0.808 86.3
2045.0 0.812 87.1
2046.0 0.815 87.8
2047.0 0.818 88.5
2048.0 0.822 89.2
2049.0 0.825 89.9
2050.0 0.828 90.6
2051.0 0.831 91.3
2052.0 0.834 92.0
2053.0 0.837 92.6
2054.0 0.840 93.3
2055.0 0.842 94.0
2056.0 0.845 94.6
2057.0 0.848 95.3
2058.0 0.850 96.0
2059.0 0.852 96.6
2060.0 0.855 97.3
2061.0 0.857 97.9
2062.0 0.859 98.5
2063.0 0.861 99.2
2064.0 0.864 99.8
2065.0 0.866 100.5
2066.0 0.868 101.1
2067.0 0.869 101.7
2068.0 0.871 102.3
2069.0 0.873 103.0
2070.0 0.875 103.6
2071.0 0.876 104.2
2072.0 0.878 104.8
2073.0 0.880 105.4
2074.0 0.881 106.0
2075.0 0.882 106.6
2076.0 0.884 107.2
2077.0 0.885 107.9
2078.0 0.886 108.5
2079.0 0.887 109.1
2080.0 0.889 109.7
2081.0 0.890 110.3
2082.0 0.891 110.9
2083.0 0.892 111.4
2084.0 0.892 112.0
2085.0 0.893 112.6
2086.0 0.894 113.2
2087.0 0.895 113.8
2088.0 0.895 114.4
2089.0 0.896 115.0
2090.0 0.896 115.6
2091.0 0.897 116.2
2092.0 0.897 116.8
2093.0 0.898 117.4
2094.0 0.898 117.9
2095.0 0.898 118.5
2096.0 0.898 119.1
2097.0 0.898 119.7
2098.0 0.898 120.3
2099.0 0.898 120.9
2100.0 0.898 121.5
2101.0 0.898 122.0
2102.0 0.898 122.6
2103.0 0.898 123.2
2104.0 0.897 123.8
2105.0 0.897 124.4
2106.0 0.897 125.0
2107.0 0.896 125.6
2108.0 0.895 126.2
2109.0 0.895 126.7
2110.0 0.894 127.3
2111.0 0.893 127.9
2112.0 0.892 128.5
2113.0 0.891 129.1
2114.0 0.890 129.7
2115.0 0.889 130.3
2116.0 0.888 130.9
2117.0 0.887 131.5
2118.0 0.886 132.1
2119.0 0.884 132.7
2120.0 0.883 133.3
2121.0 0.882 133.9
2122.0 0.880 134.5
2123.0 0.878 135.2
2124.0 0.877 135.8
2125.0 0.875 136.4
2126.0 0.873 137.0
2127.0 0.871 137.6
2128.0 0.869 138.3
2129.0 0.867 138.9
2130.0 0.864 139.5
2131.0 0.862 140.1
2132.0 0.860 140.8
2133.0 0.857 141.4
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory .
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