| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:58:11 |
| WDS: | STF520 | WDS ID/Discoverer |
| P: | 237.000 | Orbital period (years) |
| a: | 0.52 | Semi-major axis (arcseconds) |
| i: | 21.0 | Inclination (degrees) |
| Ω: | 144.3 | Longitude of ascending node (degrees) |
| T: | 1972.440 | Epoch of periastron passage (year) |
| e: | 0.859 | Eccentricity |
| ω: | 136.2 | Longitude of periastron (degrees) |
| Start-Year: | 1907.0 | Year |
| End-Year: | 2143.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 041814.55+224824.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04182+2248 | WDS designation |
| Discoverer Code: | STF520 | Discover designation and components |
| ADS number: | 3114 | Aitken Double Star catalog |
| HD number: | 27160 | HD catalog number |
| Hipparcos number: | 20071 | Hipparcos catalog number |
| V1: | 8.26 | Magnitude of the primary |
| V2: | 8.45 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2019 | Date of last observation |
| Orbit grade: | 3 | 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 0.717 84.7 ------------------------- 1907.0 0.819 115.4 1908.0 0.814 115.7 1909.0 0.809 116.0 1910.0 0.804 116.3 1911.0 0.798 116.6 1912.0 0.793 116.9 1913.0 0.787 117.2 1914.0 0.782 117.5 1915.0 0.776 117.8 1916.0 0.770 118.2 1917.0 0.764 118.5 1918.0 0.757 118.8 1919.0 0.751 119.2 1920.0 0.744 119.5 1921.0 0.738 119.9 1922.0 0.731 120.3 1923.0 0.724 120.6 1924.0 0.717 121.0 1925.0 0.709 121.4 1926.0 0.702 121.8 1927.0 0.694 122.2 1928.0 0.687 122.6 1929.0 0.679 123.0 1930.0 0.671 123.5 1931.0 0.662 123.9 1932.0 0.654 124.4 1933.0 0.645 124.8 1934.0 0.636 125.3 1935.0 0.627 125.8 1936.0 0.618 126.3 1937.0 0.609 126.8 1938.0 0.599 127.4 1939.0 0.589 127.9 1940.0 0.579 128.5 1941.0 0.569 129.1 1942.0 0.558 129.7 1943.0 0.547 130.3 1944.0 0.536 131.0 1945.0 0.525 131.7 1946.0 0.514 132.4 1947.0 0.502 133.2 1948.0 0.490 134.0 1949.0 0.477 134.8 1950.0 0.464 135.7 1951.0 0.451 136.7 1952.0 0.438 137.7 1953.0 0.424 138.7 1954.0 0.410 139.8 1955.0 0.395 141.1 1956.0 0.380 142.4 1957.0 0.364 143.8 1958.0 0.348 145.3 1959.0 0.331 147.0 1960.0 0.314 148.9 1961.0 0.296 151.0 1962.0 0.278 153.4 1963.0 0.259 156.1 1964.0 0.239 159.3 1965.0 0.218 163.1 1966.0 0.196 167.7 1967.0 0.173 173.5 1968.0 0.150 181.0 1969.0 0.126 191.4 1970.0 0.102 206.8 1971.0 0.082 230.5 1972.0 0.071 265.2 1973.0 0.075 303.3 1974.0 0.090 332.9 1975.0 0.109 353.1 1976.0 0.129 7.1 1977.0 0.150 17.3 1978.0 0.170 25.0 1979.0 0.189 31.1 1980.0 0.208 36.0 1981.0 0.227 40.2 1982.0 0.245 43.7 1983.0 0.262 46.8 1984.0 0.279 49.5 1985.0 0.295 51.8 1986.0 0.311 54.0 1987.0 0.327 55.9 1988.0 0.342 57.7 1989.0 0.356 59.3 1990.0 0.371 60.8 1991.0 0.385 62.1 1992.0 0.398 63.4 1993.0 0.411 64.6 1994.0 0.424 65.7 1995.0 0.437 66.8 1996.0 0.449 67.8 1997.0 0.461 68.7 1998.0 0.473 69.6 1999.0 0.485 70.5 2000.0 0.496 71.3 2001.0 0.507 72.1 2002.0 0.518 72.8 2003.0 0.529 73.6 2004.0 0.539 74.3 2005.0 0.549 74.9 2006.0 0.559 75.6 2007.0 0.569 76.2 2008.0 0.579 76.8 2009.0 0.588 77.3 2010.0 0.597 77.9 2011.0 0.606 78.4 2012.0 0.615 79.0 2013.0 0.624 79.5 2014.0 0.632 80.0 2015.0 0.641 80.5 2016.0 0.649 80.9 2017.0 0.657 81.4 2018.0 0.665 81.8 2019.0 0.673 82.3 2020.0 0.681 82.7 2021.0 0.688 83.1 2022.0 0.695 83.5 2023.0 0.703 83.9 2024.0 0.710 84.3 2025.0 0.717 84.7 2026.0 0.723 85.1 2027.0 0.730 85.5 2028.0 0.737 85.8 2029.0 0.743 86.2 2030.0 0.749 86.6 2031.0 0.755 86.9 2032.0 0.761 87.2 2033.0 0.767 87.6 2034.0 0.773 87.9 2035.0 0.779 88.2 2036.0 0.784 88.6 2037.0 0.790 88.9 2038.0 0.795 89.2 2039.0 0.800 89.5 2040.0 0.806 89.8 2041.0 0.811 90.1 2042.0 0.816 90.4 2043.0 0.820 90.7 2044.0 0.825 91.0 2045.0 0.830 91.3 2046.0 0.834 91.6 2047.0 0.838 91.8 2048.0 0.843 92.1 2049.0 0.847 92.4 2050.0 0.851 92.7 2051.0 0.855 92.9 2052.0 0.859 93.2 2053.0 0.862 93.5 2054.0 0.866 93.7 2055.0 0.870 94.0 2056.0 0.873 94.2 2057.0 0.877 94.5 2058.0 0.880 94.8 2059.0 0.883 95.0 2060.0 0.886 95.3 2061.0 0.889 95.5 2062.0 0.892 95.8 2063.0 0.895 96.0 2064.0 0.897 96.2 2065.0 0.900 96.5 2066.0 0.903 96.7 2067.0 0.905 97.0 2068.0 0.907 97.2 2069.0 0.910 97.4 2070.0 0.912 97.7 2071.0 0.914 97.9 2072.0 0.916 98.2 2073.0 0.918 98.4 2074.0 0.920 98.6 2075.0 0.921 98.9 2076.0 0.923 99.1 2077.0 0.924 99.3 2078.0 0.926 99.5 2079.0 0.927 99.8 2080.0 0.928 100.0 2081.0 0.930 100.2 2082.0 0.931 100.5 2083.0 0.932 100.7 2084.0 0.933 100.9 2085.0 0.933 101.1 2086.0 0.934 101.4 2087.0 0.935 101.6 2088.0 0.935 101.8 2089.0 0.936 102.0 2090.0 0.936 102.3 2091.0 0.936 102.5 2092.0 0.937 102.7 2093.0 0.937 102.9 2094.0 0.937 103.1 2095.0 0.937 103.4 2096.0 0.937 103.6 2097.0 0.936 103.8 2098.0 0.936 104.0 2099.0 0.936 104.3 2100.0 0.935 104.5 2101.0 0.935 104.7 2102.0 0.934 104.9 2103.0 0.933 105.2 2104.0 0.932 105.4 2105.0 0.931 105.6 2106.0 0.930 105.8 2107.0 0.929 106.1 2108.0 0.928 106.3 2109.0 0.927 106.5 2110.0 0.925 106.8 2111.0 0.924 107.0 2112.0 0.922 107.2 2113.0 0.920 107.4 2114.0 0.919 107.7 2115.0 0.917 107.9 2116.0 0.915 108.1 2117.0 0.913 108.4 2118.0 0.911 108.6 2119.0 0.908 108.9 2120.0 0.906 109.1 2121.0 0.903 109.3 2122.0 0.901 109.6 2123.0 0.898 109.8 2124.0 0.896 110.1 2125.0 0.893 110.3 2126.0 0.890 110.6 2127.0 0.887 110.8 2128.0 0.884 111.1 2129.0 0.880 111.3 2130.0 0.877 111.6 2131.0 0.874 111.8 2132.0 0.870 112.1 2133.0 0.866 112.3 2134.0 0.863 112.6 2135.0 0.859 112.9 2136.0 0.855 113.1 2137.0 0.851 113.4 2138.0 0.847 113.7 2139.0 0.842 113.9 2140.0 0.838 114.2 2141.0 0.833 114.5 2142.0 0.829 114.8