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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:31:47
WDS:
COU610
WDS ID/Discoverer
P:
361.100
Orbital period (years)
a:
0.826
Semi-major axis (arcseconds)
i:
100.5
Inclination (degrees)
Ω:
26.9
Longitude of ascending node (degrees)
T:
1943.000
Epoch of periastron passage (year)
e:
0.78
Eccentricity
ω:
66.5
Longitude of periastron (degrees)
Start-Year:
1845.0
Year
End-Year:
2205.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
153255.78+312132.9
Epoch-2000 right ascension and declination
WDS-ID:
15329+3122
WDS designation
Discoverer Code:
COU610
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
138749
HD catalog number
Hipparcos number:
76127
Hipparcos catalog number
V1:
4.27
Magnitude of the primary
V2:
6.29
Magnitude of the secondary
Equinox:
Equinox
Date:
2016
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.845 197.0
-------------------------
1845.0 0.256 144.4
1846.0 0.252 143.2
1847.0 0.248 141.9
1848.0 0.245 140.7
1849.0 0.241 139.3
1850.0 0.238 138.0
1851.0 0.235 136.6
1852.0 0.232 135.2
1853.0 0.229 133.7
1854.0 0.226 132.2
1855.0 0.223 130.7
1856.0 0.221 129.1
1857.0 0.218 127.5
1858.0 0.216 125.9
1859.0 0.214 124.2
1860.0 0.212 122.5
1861.0 0.210 120.7
1862.0 0.209 119.0
1863.0 0.207 117.2
1864.0 0.206 115.4
1865.0 0.205 113.5
1866.0 0.204 111.7
1867.0 0.203 109.8
1868.0 0.203 107.9
1869.0 0.203 106.0
1870.0 0.203 104.1
1871.0 0.203 102.2
1872.0 0.203 100.4
1873.0 0.203 98.5
1874.0 0.204 96.6
1875.0 0.205 94.8
1876.0 0.206 92.9
1877.0 0.207 91.1
1878.0 0.209 89.3
1879.0 0.210 87.5
1880.0 0.212 85.8
1881.0 0.214 84.1
1882.0 0.216 82.4
1883.0 0.218 80.8
1884.0 0.220 79.1
1885.0 0.223 77.6
1886.0 0.225 76.0
1887.0 0.228 74.5
1888.0 0.231 73.0
1889.0 0.234 71.6
1890.0 0.237 70.2
1891.0 0.240 68.8
1892.0 0.243 67.5
1893.0 0.246 66.2
1894.0 0.249 64.9
1895.0 0.253 63.7
1896.0 0.256 62.5
1897.0 0.259 61.3
1898.0 0.263 60.2
1899.0 0.266 59.1
1900.0 0.270 58.0
1901.0 0.273 56.9
1902.0 0.277 55.9
1903.0 0.280 54.9
1904.0 0.283 53.9
1905.0 0.287 53.0
1906.0 0.290 52.0
1907.0 0.293 51.1
1908.0 0.297 50.2
1909.0 0.300 49.4
1910.0 0.303 48.5
1911.0 0.306 47.7
1912.0 0.309 46.8
1913.0 0.311 46.0
1914.0 0.314 45.2
1915.0 0.316 44.5
1916.0 0.318 43.7
1917.0 0.320 42.9
1918.0 0.322 42.2
1919.0 0.324 41.4
1920.0 0.325 40.7
1921.0 0.326 40.0
1922.0 0.326 39.2
1923.0 0.326 38.5
1924.0 0.326 37.8
1925.0 0.325 37.1
1926.0 0.324 36.3
1927.0 0.322 35.6
1928.0 0.319 34.8
1929.0 0.316 34.1
1930.0 0.311 33.3
1931.0 0.306 32.4
1932.0 0.299 31.6
1933.0 0.291 30.7
1934.0 0.281 29.8
1935.0 0.270 28.7
1936.0 0.256 27.6
1937.0 0.240 26.4
1938.0 0.221 24.9
1939.0 0.198 23.1
1940.0 0.173 20.9
1941.0 0.144 17.8
1942.0 0.112 13.0
1943.0 0.079 4.2
1944.0 0.047 342.9
1945.0 0.035 288.4
1946.0 0.057 245.4
1947.0 0.090 230.1
1948.0 0.124 223.1
1949.0 0.158 219.2
1950.0 0.190 216.6
1951.0 0.221 214.7
1952.0 0.249 213.3
1953.0 0.277 212.2
1954.0 0.302 211.3
1955.0 0.327 210.5
1956.0 0.350 209.8
1957.0 0.372 209.2
1958.0 0.392 208.7
1959.0 0.412 208.2
1960.0 0.431 207.8
1961.0 0.449 207.4
1962.0 0.466 207.0
1963.0 0.482 206.6
1964.0 0.497 206.3
1965.0 0.512 206.0
1966.0 0.526 205.7
1967.0 0.540 205.4
1968.0 0.553 205.2
1969.0 0.566 204.9
1970.0 0.578 204.7
1971.0 0.589 204.5
1972.0 0.600 204.3
1973.0 0.611 204.0
1974.0 0.621 203.8
1975.0 0.631 203.6
1976.0 0.641 203.5
1977.0 0.650 203.3
1978.0 0.659 203.1
1979.0 0.667 202.9
1980.0 0.676 202.7
1981.0 0.684 202.6
1982.0 0.691 202.4
1983.0 0.699 202.2
1984.0 0.706 202.1
1985.0 0.712 201.9
1986.0 0.719 201.8
1987.0 0.725 201.6
1988.0 0.732 201.5
1989.0 0.738 201.3
1990.0 0.743 201.2
1991.0 0.749 201.1
1992.0 0.754 200.9
1993.0 0.759 200.8
1994.0 0.764 200.7
1995.0 0.769 200.5
1996.0 0.773 200.4
1997.0 0.778 200.3
1998.0 0.782 200.1
1999.0 0.786 200.0
2000.0 0.790 199.9
2001.0 0.794 199.8
2002.0 0.797 199.6
2003.0 0.801 199.5
2004.0 0.804 199.4
2005.0 0.807 199.3
2006.0 0.810 199.2
2007.0 0.813 199.0
2008.0 0.816 198.9
2009.0 0.818 198.8
2010.0 0.821 198.7
2011.0 0.823 198.6
2012.0 0.825 198.5
2013.0 0.828 198.3
2014.0 0.830 198.2
2015.0 0.832 198.1
2016.0 0.833 198.0
2017.0 0.835 197.9
2018.0 0.837 197.8
2019.0 0.838 197.7
2020.0 0.839 197.6
2021.0 0.841 197.5
2022.0 0.842 197.3
2023.0 0.843 197.2
2024.0 0.844 197.1
2025.0 0.845 197.0
2026.0 0.846 196.9
2027.0 0.846 196.8
2028.0 0.847 196.7
2029.0 0.848 196.6
2030.0 0.848 196.5
2031.0 0.848 196.4
2032.0 0.849 196.3
2033.0 0.849 196.2
2034.0 0.849 196.0
2035.0 0.849 195.9
2036.0 0.849 195.8
2037.0 0.849 195.7
2038.0 0.849 195.6
2039.0 0.848 195.5
2040.0 0.848 195.4
2041.0 0.848 195.3
2042.0 0.847 195.2
2043.0 0.847 195.1
2044.0 0.846 195.0
2045.0 0.845 194.9
2046.0 0.845 194.8
2047.0 0.844 194.6
2048.0 0.843 194.5
2049.0 0.842 194.4
2050.0 0.841 194.3
2051.0 0.840 194.2
2052.0 0.839 194.1
2053.0 0.838 194.0
2054.0 0.836 193.9
2055.0 0.835 193.8
2056.0 0.834 193.7
2057.0 0.832 193.5
2058.0 0.831 193.4
2059.0 0.829 193.3
2060.0 0.828 193.2
2061.0 0.826 193.1
2062.0 0.824 193.0
2063.0 0.823 192.9
2064.0 0.821 192.7
2065.0 0.819 192.6
2066.0 0.817 192.5
2067.0 0.815 192.4
2068.0 0.813 192.3
2069.0 0.811 192.2
2070.0 0.809 192.0
2071.0 0.807 191.9
2072.0 0.804 191.8
2073.0 0.802 191.7
2074.0 0.800 191.6
2075.0 0.798 191.4
2076.0 0.795 191.3
2077.0 0.793 191.2
2078.0 0.790 191.1
2079.0 0.788 191.0
2080.0 0.785 190.8
2081.0 0.782 190.7
2082.0 0.780 190.6
2083.0 0.777 190.4
2084.0 0.774 190.3
2085.0 0.771 190.2
2086.0 0.769 190.1
2087.0 0.766 189.9
2088.0 0.763 189.8
2089.0 0.760 189.7
2090.0 0.757 189.5
2091.0 0.754 189.4
2092.0 0.751 189.2
2093.0 0.748 189.1
2094.0 0.744 189.0
2095.0 0.741 188.8
2096.0 0.738 188.7
2097.0 0.735 188.5
2098.0 0.731 188.4
2099.0 0.728 188.3
2100.0 0.725 188.1
2101.0 0.721 188.0
2102.0 0.718 187.8
2103.0 0.714 187.7
2104.0 0.711 187.5
2105.0 0.707 187.4
2106.0 0.704 187.2
2107.0 0.700 187.0
2108.0 0.696 186.9
2109.0 0.693 186.7
2110.0 0.689 186.6
2111.0 0.685 186.4
2112.0 0.682 186.2
2113.0 0.678 186.1
2114.0 0.674 185.9
2115.0 0.670 185.7
2116.0 0.666 185.5
2117.0 0.662 185.4
2118.0 0.658 185.2
2119.0 0.654 185.0
2120.0 0.650 184.8
2121.0 0.646 184.6
2122.0 0.642 184.5
2123.0 0.638 184.3
2124.0 0.634 184.1
2125.0 0.630 183.9
2126.0 0.625 183.7
2127.0 0.621 183.5
2128.0 0.617 183.3
2129.0 0.613 183.1
2130.0 0.608 182.9
2131.0 0.604 182.7
2132.0 0.600 182.4
2133.0 0.595 182.2
2134.0 0.591 182.0
2135.0 0.587 181.8
2136.0 0.582 181.6
2137.0 0.578 181.3
2138.0 0.573 181.1
2139.0 0.569 180.9
2140.0 0.564 180.6
2141.0 0.560 180.4
2142.0 0.555 180.1
2143.0 0.551 179.9
2144.0 0.546 179.6
2145.0 0.541 179.3
2146.0 0.537 179.1
2147.0 0.532 178.8
2148.0 0.528 178.5
2149.0 0.523 178.2
2150.0 0.518 178.0
2151.0 0.513 177.7
2152.0 0.509 177.4
2153.0 0.504 177.1
2154.0 0.499 176.8
2155.0 0.494 176.4
2156.0 0.490 176.1
2157.0 0.485 175.8
2158.0 0.480 175.5
2159.0 0.475 175.1
2160.0 0.470 174.8
2161.0 0.466 174.4
2162.0 0.461 174.1
2163.0 0.456 173.7
2164.0 0.451 173.3
2165.0 0.446 172.9
2166.0 0.441 172.5
2167.0 0.436 172.1
2168.0 0.431 171.7
2169.0 0.426 171.3
2170.0 0.422 170.9
2171.0 0.417 170.4
2172.0 0.412 170.0
2173.0 0.407 169.5
2174.0 0.402 169.0
2175.0 0.397 168.6
2176.0 0.392 168.1
2177.0 0.387 167.5
2178.0 0.382 167.0
2179.0 0.378 166.5
2180.0 0.373 165.9
2181.0 0.368 165.4
2182.0 0.363 164.8
2183.0 0.358 164.2
2184.0 0.353 163.6
2185.0 0.349 162.9
2186.0 0.344 162.3
2187.0 0.339 161.6
2188.0 0.334 160.9
2189.0 0.330 160.2
2190.0 0.325 159.5
2191.0 0.320 158.8
2192.0 0.316 158.0
2193.0 0.311 157.2
2194.0 0.307 156.4
2195.0 0.302 155.6
2196.0 0.298 154.7
2197.0 0.293 153.8
2198.0 0.289 152.9
2199.0 0.285 152.0
2200.0 0.280 151.0
2201.0 0.276 150.0
2202.0 0.272 148.9
2203.0 0.268 147.9
2204.0 0.264 146.8
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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