| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:04:59 |
| WDS: | COU321 | WDS ID/Discoverer |
| P: | 354.120 | Orbital period (years) |
| a: | 0.484 | Semi-major axis (arcseconds) |
| i: | 101.0 | Inclination (degrees) |
| Ω: | 142.2 | Longitude of ascending node (degrees) |
| T: | 2349.400 | Epoch of periastron passage (year) |
| e: | 0.776 | Eccentricity |
| ω: | 188.4 | Longitude of periastron (degrees) |
| Start-Year: | 1848.0 | Year |
| End-Year: | 2202.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 191757.89+201133.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 19180+2012 | WDS designation |
| Discoverer Code: | COU321 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 181025 | HD catalog number |
| Hipparcos number: | 94847 | Hipparcos catalog number |
| V1: | 8.92 | Magnitude of the primary |
| V2: | 8.92 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1998 | 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)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.276 152.3 ------------------------- 1848.0 0.817 139.4 1849.0 0.815 139.3 1850.0 0.813 139.3 1851.0 0.811 139.2 1852.0 0.809 139.2 1853.0 0.807 139.2 1854.0 0.805 139.1 1855.0 0.803 139.1 1856.0 0.801 139.0 1857.0 0.798 139.0 1858.0 0.796 138.9 1859.0 0.794 138.9 1860.0 0.791 138.8 1861.0 0.789 138.8 1862.0 0.786 138.7 1863.0 0.784 138.7 1864.0 0.781 138.7 1865.0 0.778 138.6 1866.0 0.776 138.6 1867.0 0.773 138.5 1868.0 0.770 138.5 1869.0 0.767 138.4 1870.0 0.764 138.4 1871.0 0.761 138.3 1872.0 0.758 138.3 1873.0 0.755 138.2 1874.0 0.752 138.2 1875.0 0.749 138.1 1876.0 0.746 138.1 1877.0 0.743 138.0 1878.0 0.739 138.0 1879.0 0.736 137.9 1880.0 0.733 137.9 1881.0 0.729 137.8 1882.0 0.725 137.7 1883.0 0.722 137.7 1884.0 0.718 137.6 1885.0 0.715 137.6 1886.0 0.711 137.5 1887.0 0.707 137.5 1888.0 0.703 137.4 1889.0 0.699 137.3 1890.0 0.695 137.3 1891.0 0.691 137.2 1892.0 0.687 137.2 1893.0 0.683 137.1 1894.0 0.679 137.0 1895.0 0.675 137.0 1896.0 0.670 136.9 1897.0 0.666 136.9 1898.0 0.661 136.8 1899.0 0.657 136.7 1900.0 0.652 136.7 1901.0 0.648 136.6 1902.0 0.643 136.5 1903.0 0.638 136.5 1904.0 0.634 136.4 1905.0 0.629 136.3 1906.0 0.624 136.2 1907.0 0.619 136.2 1908.0 0.614 136.1 1909.0 0.609 136.0 1910.0 0.604 135.9 1911.0 0.598 135.9 1912.0 0.593 135.8 1913.0 0.588 135.7 1914.0 0.582 135.6 1915.0 0.577 135.5 1916.0 0.571 135.4 1917.0 0.566 135.3 1918.0 0.560 135.3 1919.0 0.554 135.2 1920.0 0.548 135.1 1921.0 0.543 135.0 1922.0 0.537 134.9 1923.0 0.531 134.8 1924.0 0.525 134.7 1925.0 0.518 134.6 1926.0 0.512 134.5 1927.0 0.506 134.3 1928.0 0.499 134.2 1929.0 0.493 134.1 1930.0 0.486 134.0 1931.0 0.480 133.9 1932.0 0.473 133.7 1933.0 0.466 133.6 1934.0 0.459 133.5 1935.0 0.452 133.3 1936.0 0.445 133.2 1937.0 0.438 133.1 1938.0 0.431 132.9 1939.0 0.424 132.7 1940.0 0.417 132.6 1941.0 0.409 132.4 1942.0 0.402 132.2 1943.0 0.394 132.1 1944.0 0.386 131.9 1945.0 0.378 131.7 1946.0 0.371 131.5 1947.0 0.363 131.3 1948.0 0.354 131.0 1949.0 0.346 130.8 1950.0 0.338 130.6 1951.0 0.330 130.3 1952.0 0.321 130.0 1953.0 0.313 129.7 1954.0 0.304 129.4 1955.0 0.295 129.1 1956.0 0.286 128.8 1957.0 0.277 128.4 1958.0 0.268 128.0 1959.0 0.259 127.6 1960.0 0.250 127.2 1961.0 0.240 126.7 1962.0 0.231 126.2 1963.0 0.221 125.6 1964.0 0.211 125.0 1965.0 0.202 124.3 1966.0 0.192 123.6 1967.0 0.182 122.8 1968.0 0.172 121.9 1969.0 0.161 120.8 1970.0 0.151 119.6 1971.0 0.141 118.3 1972.0 0.130 116.7 1973.0 0.120 114.9 1974.0 0.109 112.7 1975.0 0.099 110.0 1976.0 0.088 106.8 1977.0 0.078 102.6 1978.0 0.069 97.3 1979.0 0.060 90.3 1980.0 0.052 80.9 1981.0 0.045 68.6 1982.0 0.042 53.2 1983.0 0.041 36.2 1984.0 0.044 20.1 1985.0 0.050 6.9 1986.0 0.057 356.7 1987.0 0.065 349.0 1988.0 0.074 343.1 1989.0 0.083 338.4 1990.0 0.091 334.7 1991.0 0.098 331.5 1992.0 0.104 328.7 1993.0 0.108 326.1 1994.0 0.109 323.7 1995.0 0.108 321.3 1996.0 0.104 318.7 1997.0 0.097 315.9 1998.0 0.089 312.6 1999.0 0.078 308.5 2000.0 0.067 303.0 2001.0 0.055 295.2 2002.0 0.044 283.4 2003.0 0.036 265.2 2004.0 0.033 240.1 2005.0 0.036 215.0 2006.0 0.044 196.7 2007.0 0.055 185.0 2008.0 0.068 177.3 2009.0 0.081 172.1 2010.0 0.094 168.3 2011.0 0.107 165.5 2012.0 0.120 163.3 2013.0 0.133 161.5 2014.0 0.146 160.0 2015.0 0.159 158.8 2016.0 0.172 157.7 2017.0 0.184 156.8 2018.0 0.196 156.0 2019.0 0.208 155.3 2020.0 0.220 154.7 2021.0 0.231 154.1 2022.0 0.243 153.6 2023.0 0.254 153.2 2024.0 0.265 152.7 2025.0 0.276 152.3 2026.0 0.286 152.0 2027.0 0.297 151.6 2028.0 0.307 151.3 2029.0 0.317 151.0 2030.0 0.327 150.8 2031.0 0.337 150.5 2032.0 0.346 150.3 2033.0 0.356 150.0 2034.0 0.365 149.8 2035.0 0.374 149.6 2036.0 0.383 149.4 2037.0 0.392 149.2 2038.0 0.401 149.0 2039.0 0.410 148.8 2040.0 0.418 148.7 2041.0 0.427 148.5 2042.0 0.435 148.4 2043.0 0.443 148.2 2044.0 0.451 148.1 2045.0 0.459 147.9 2046.0 0.467 147.8 2047.0 0.474 147.7 2048.0 0.482 147.5 2049.0 0.489 147.4 2050.0 0.496 147.3 2051.0 0.504 147.2 2052.0 0.511 147.1 2053.0 0.518 147.0 2054.0 0.525 146.9 2055.0 0.531 146.8 2056.0 0.538 146.7 2057.0 0.545 146.6 2058.0 0.551 146.5 2059.0 0.558 146.4 2060.0 0.564 146.3 2061.0 0.570 146.2 2062.0 0.576 146.1 2063.0 0.582 146.0 2064.0 0.588 145.9 2065.0 0.594 145.9 2066.0 0.600 145.8 2067.0 0.606 145.7 2068.0 0.611 145.6 2069.0 0.617 145.5 2070.0 0.622 145.5 2071.0 0.627 145.4 2072.0 0.633 145.3 2073.0 0.638 145.2 2074.0 0.643 145.2 2075.0 0.648 145.1 2076.0 0.653 145.0 2077.0 0.658 145.0 2078.0 0.663 144.9 2079.0 0.668 144.8 2080.0 0.672 144.8 2081.0 0.677 144.7 2082.0 0.681 144.7 2083.0 0.686 144.6 2084.0 0.690 144.5 2085.0 0.695 144.5 2086.0 0.699 144.4 2087.0 0.703 144.4 2088.0 0.707 144.3 2089.0 0.711 144.2 2090.0 0.715 144.2 2091.0 0.719 144.1 2092.0 0.723 144.1 2093.0 0.727 144.0 2094.0 0.731 144.0 2095.0 0.734 143.9 2096.0 0.738 143.9 2097.0 0.741 143.8 2098.0 0.745 143.8 2099.0 0.748 143.7 2100.0 0.752 143.7 2101.0 0.755 143.6 2102.0 0.758 143.6 2103.0 0.761 143.5 2104.0 0.764 143.5 2105.0 0.768 143.4 2106.0 0.771 143.4 2107.0 0.773 143.3 2108.0 0.776 143.3 2109.0 0.779 143.2 2110.0 0.782 143.2 2111.0 0.785 143.1 2112.0 0.787 143.1 2113.0 0.790 143.0 2114.0 0.792 143.0 2115.0 0.795 142.9 2116.0 0.797 142.9 2117.0 0.800 142.8 2118.0 0.802 142.8 2119.0 0.804 142.8 2120.0 0.806 142.7 2121.0 0.809 142.7 2122.0 0.811 142.6 2123.0 0.813 142.6 2124.0 0.815 142.5 2125.0 0.817 142.5 2126.0 0.819 142.5 2127.0 0.820 142.4 2128.0 0.822 142.4 2129.0 0.824 142.3 2130.0 0.826 142.3 2131.0 0.827 142.2 2132.0 0.829 142.2 2133.0 0.830 142.2 2134.0 0.832 142.1 2135.0 0.833 142.1 2136.0 0.835 142.0 2137.0 0.836 142.0 2138.0 0.837 142.0 2139.0 0.838 141.9 2140.0 0.839 141.9 2141.0 0.841 141.8 2142.0 0.842 141.8 2143.0 0.843 141.7 2144.0 0.844 141.7 2145.0 0.845 141.7 2146.0 0.845 141.6 2147.0 0.846 141.6 2148.0 0.847 141.5 2149.0 0.848 141.5 2150.0 0.848 141.5 2151.0 0.849 141.4 2152.0 0.850 141.4 2153.0 0.850 141.3 2154.0 0.851 141.3 2155.0 0.851 141.3 2156.0 0.851 141.2 2157.0 0.852 141.2 2158.0 0.852 141.2 2159.0 0.852 141.1 2160.0 0.852 141.1 2161.0 0.853 141.0 2162.0 0.853 141.0 2163.0 0.853 141.0 2164.0 0.853 140.9 2165.0 0.853 140.9 2166.0 0.852 140.8 2167.0 0.852 140.8 2168.0 0.852 140.8 2169.0 0.852 140.7 2170.0 0.852 140.7 2171.0 0.851 140.6 2172.0 0.851 140.6 2173.0 0.850 140.6 2174.0 0.850 140.5 2175.0 0.849 140.5 2176.0 0.849 140.4 2177.0 0.848 140.4 2178.0 0.848 140.4 2179.0 0.847 140.3 2180.0 0.846 140.3 2181.0 0.845 140.2 2182.0 0.844 140.2 2183.0 0.843 140.2 2184.0 0.842 140.1 2185.0 0.841 140.1 2186.0 0.840 140.0 2187.0 0.839 140.0 2188.0 0.838 140.0 2189.0 0.837 139.9 2190.0 0.836 139.9 2191.0 0.834 139.8 2192.0 0.833 139.8 2193.0 0.832 139.8 2194.0 0.830 139.7 2195.0 0.829 139.7 2196.0 0.827 139.6 2197.0 0.826 139.6 2198.0 0.824 139.5 2199.0 0.822 139.5 2200.0 0.821 139.5 2201.0 0.819 139.4