| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:42:20 |
| WDS: | A1874AB | WDS ID/Discoverer |
| P: | 311.000 | Orbital period (years) |
| a: | 2.95 | Semi-major axis (arcseconds) |
| i: | 64.0 | Inclination (degrees) |
| Ω: | 256.0 | Longitude of ascending node (degrees) |
| T: | 1852.000 | Epoch of periastron passage (year) |
| e: | 0.86 | Eccentricity |
| ω: | 332.0 | Longitude of periastron (degrees) |
| Start-Year: | 1870.0 | Year |
| End-Year: | 2180.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 165753.18+472200.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16579+4722 | WDS designation |
| Discoverer Code: | A1874AB | Discover designation and components |
| ADS number: | 10288 | Aitken Double Star catalog |
| HD number: | 153557 | HD catalog number |
| Hipparcos number: | 83020 | Hipparcos catalog number |
| V1: | 7.93 | Magnitude of the primary |
| V2: | 10.85 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2007 | Date of last observation |
| Orbit grade: | 5 | 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 5.033 64.4 ------------------------- 1870.0 0.961 19.2 1871.0 1.018 21.5 1872.0 1.074 23.6 1873.0 1.131 25.4 1874.0 1.187 27.1 1875.0 1.243 28.6 1876.0 1.299 30.0 1877.0 1.354 31.3 1878.0 1.409 32.5 1879.0 1.464 33.6 1880.0 1.518 34.6 1881.0 1.571 35.5 1882.0 1.624 36.4 1883.0 1.677 37.3 1884.0 1.728 38.0 1885.0 1.780 38.8 1886.0 1.831 39.5 1887.0 1.881 40.1 1888.0 1.930 40.7 1889.0 1.980 41.3 1890.0 2.028 41.9 1891.0 2.076 42.4 1892.0 2.124 42.9 1893.0 2.171 43.4 1894.0 2.217 43.9 1895.0 2.263 44.3 1896.0 2.309 44.8 1897.0 2.354 45.2 1898.0 2.398 45.6 1899.0 2.442 46.0 1900.0 2.486 46.3 1901.0 2.529 46.7 1902.0 2.571 47.0 1903.0 2.613 47.4 1904.0 2.655 47.7 1905.0 2.696 48.0 1906.0 2.737 48.3 1907.0 2.777 48.6 1908.0 2.817 48.9 1909.0 2.856 49.2 1910.0 2.895 49.5 1911.0 2.933 49.7 1912.0 2.971 50.0 1913.0 3.009 50.2 1914.0 3.046 50.5 1915.0 3.082 50.7 1916.0 3.119 51.0 1917.0 3.155 51.2 1918.0 3.190 51.4 1919.0 3.225 51.6 1920.0 3.260 51.8 1921.0 3.294 52.1 1922.0 3.328 52.3 1923.0 3.361 52.5 1924.0 3.394 52.7 1925.0 3.427 52.8 1926.0 3.459 53.0 1927.0 3.491 53.2 1928.0 3.523 53.4 1929.0 3.554 53.6 1930.0 3.585 53.8 1931.0 3.615 53.9 1932.0 3.645 54.1 1933.0 3.675 54.3 1934.0 3.704 54.4 1935.0 3.733 54.6 1936.0 3.762 54.8 1937.0 3.790 54.9 1938.0 3.818 55.1 1939.0 3.846 55.2 1940.0 3.873 55.4 1941.0 3.900 55.5 1942.0 3.927 55.7 1943.0 3.953 55.8 1944.0 3.979 56.0 1945.0 4.004 56.1 1946.0 4.029 56.3 1947.0 4.054 56.4 1948.0 4.079 56.5 1949.0 4.103 56.7 1950.0 4.127 56.8 1951.0 4.150 56.9 1952.0 4.173 57.1 1953.0 4.196 57.2 1954.0 4.219 57.3 1955.0 4.241 57.4 1956.0 4.263 57.6 1957.0 4.285 57.7 1958.0 4.306 57.8 1959.0 4.327 57.9 1960.0 4.347 58.0 1961.0 4.368 58.2 1962.0 4.388 58.3 1963.0 4.407 58.4 1964.0 4.427 58.5 1965.0 4.446 58.6 1966.0 4.465 58.7 1967.0 4.483 58.9 1968.0 4.501 59.0 1969.0 4.519 59.1 1970.0 4.536 59.2 1971.0 4.554 59.3 1972.0 4.571 59.4 1973.0 4.587 59.5 1974.0 4.603 59.6 1975.0 4.619 59.7 1976.0 4.635 59.8 1977.0 4.650 59.9 1978.0 4.666 60.0 1979.0 4.680 60.1 1980.0 4.695 60.2 1981.0 4.709 60.3 1982.0 4.723 60.4 1983.0 4.736 60.6 1984.0 4.750 60.7 1985.0 4.763 60.8 1986.0 4.775 60.8 1987.0 4.788 60.9 1988.0 4.800 61.0 1989.0 4.811 61.1 1990.0 4.823 61.2 1991.0 4.834 61.3 1992.0 4.845 61.4 1993.0 4.855 61.5 1994.0 4.866 61.6 1995.0 4.876 61.7 1996.0 4.885 61.8 1997.0 4.895 61.9 1998.0 4.904 62.0 1999.0 4.912 62.1 2000.0 4.921 62.2 2001.0 4.929 62.3 2002.0 4.937 62.4 2003.0 4.944 62.5 2004.0 4.952 62.6 2005.0 4.959 62.7 2006.0 4.965 62.7 2007.0 4.972 62.8 2008.0 4.978 62.9 2009.0 4.983 63.0 2010.0 4.989 63.1 2011.0 4.994 63.2 2012.0 4.999 63.3 2013.0 5.003 63.4 2014.0 5.007 63.5 2015.0 5.011 63.6 2016.0 5.015 63.6 2017.0 5.018 63.7 2018.0 5.021 63.8 2019.0 5.024 63.9 2020.0 5.026 64.0 2021.0 5.028 64.1 2022.0 5.030 64.2 2023.0 5.031 64.3 2024.0 5.033 64.4 2025.0 5.033 64.4 2026.0 5.034 64.5 2027.0 5.034 64.6 2028.0 5.034 64.7 2029.0 5.033 64.8 2030.0 5.033 64.9 2031.0 5.032 65.0 2032.0 5.030 65.1 2033.0 5.028 65.2 2034.0 5.026 65.3 2035.0 5.024 65.3 2036.0 5.021 65.4 2037.0 5.018 65.5 2038.0 5.015 65.6 2039.0 5.011 65.7 2040.0 5.007 65.8 2041.0 5.003 65.9 2042.0 4.998 66.0 2043.0 4.993 66.1 2044.0 4.987 66.1 2045.0 4.982 66.2 2046.0 4.976 66.3 2047.0 4.969 66.4 2048.0 4.962 66.5 2049.0 4.955 66.6 2050.0 4.948 66.7 2051.0 4.940 66.8 2052.0 4.932 66.9 2053.0 4.923 67.0 2054.0 4.914 67.1 2055.0 4.905 67.2 2056.0 4.895 67.3 2057.0 4.885 67.3 2058.0 4.875 67.4 2059.0 4.864 67.5 2060.0 4.853 67.6 2061.0 4.842 67.7 2062.0 4.830 67.8 2063.0 4.817 67.9 2064.0 4.805 68.0 2065.0 4.792 68.1 2066.0 4.778 68.2 2067.0 4.765 68.3 2068.0 4.750 68.4 2069.0 4.736 68.5 2070.0 4.721 68.6 2071.0 4.705 68.7 2072.0 4.689 68.8 2073.0 4.673 68.9 2074.0 4.656 69.0 2075.0 4.639 69.1 2076.0 4.622 69.2 2077.0 4.604 69.3 2078.0 4.585 69.4 2079.0 4.566 69.6 2080.0 4.547 69.7 2081.0 4.527 69.8 2082.0 4.507 69.9 2083.0 4.486 70.0 2084.0 4.465 70.1 2085.0 4.444 70.2 2086.0 4.421 70.3 2087.0 4.399 70.5 2088.0 4.376 70.6 2089.0 4.352 70.7 2090.0 4.328 70.8 2091.0 4.303 70.9 2092.0 4.278 71.1 2093.0 4.253 71.2 2094.0 4.226 71.3 2095.0 4.200 71.4 2096.0 4.172 71.6 2097.0 4.144 71.7 2098.0 4.116 71.8 2099.0 4.087 72.0 2100.0 4.057 72.1 2101.0 4.027 72.2 2102.0 3.996 72.4 2103.0 3.965 72.5 2104.0 3.933 72.7 2105.0 3.900 72.8 2106.0 3.867 72.9 2107.0 3.833 73.1 2108.0 3.798 73.3 2109.0 3.763 73.4 2110.0 3.727 73.6 2111.0 3.690 73.7 2112.0 3.653 73.9 2113.0 3.615 74.1 2114.0 3.576 74.2 2115.0 3.536 74.4 2116.0 3.495 74.6 2117.0 3.454 74.8 2118.0 3.412 75.0 2119.0 3.368 75.2 2120.0 3.325 75.4 2121.0 3.280 75.6 2122.0 3.234 75.8 2123.0 3.187 76.0 2124.0 3.139 76.2 2125.0 3.091 76.5 2126.0 3.041 76.7 2127.0 2.990 77.0 2128.0 2.938 77.2 2129.0 2.885 77.5 2130.0 2.830 77.8 2131.0 2.775 78.1 2132.0 2.718 78.4 2133.0 2.660 78.7 2134.0 2.600 79.0 2135.0 2.539 79.3 2136.0 2.477 79.7 2137.0 2.413 80.1 2138.0 2.347 80.5 2139.0 2.280 80.9 2140.0 2.210 81.3 2141.0 2.139 81.8 2142.0 2.066 82.3 2143.0 1.991 82.9 2144.0 1.914 83.5 2145.0 1.834 84.1 2146.0 1.752 84.8 2147.0 1.667 85.6 2148.0 1.579 86.4 2149.0 1.488 87.4 2150.0 1.394 88.5 2151.0 1.296 89.7 2152.0 1.194 91.2 2153.0 1.089 92.9 2154.0 0.978 95.0 2155.0 0.864 97.7 2156.0 0.744 101.2 2157.0 0.621 106.1 2158.0 0.494 113.4 2159.0 0.371 125.7 2160.0 0.269 148.7 2161.0 0.233 186.9 2162.0 0.288 222.0 2163.0 0.374 242.9 2164.0 0.438 256.4 2165.0 0.468 267.3 2166.0 0.474 277.4 2167.0 0.471 287.5 2168.0 0.467 297.7 2169.0 0.468 308.1 2170.0 0.477 318.2 2171.0 0.495 327.8 2172.0 0.522 336.5 2173.0 0.556 344.3 2174.0 0.596 351.1 2175.0 0.641 357.0 2176.0 0.690 2.1 2177.0 0.741 6.5 2178.0 0.795 10.4 2179.0 0.850 13.7