| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:30:56 |
| WDS: | I1450 | WDS ID/Discoverer |
| P: | 201.750 | Orbital period (years) |
| a: | 0.599 | Semi-major axis (arcseconds) |
| i: | 58.4 | Inclination (degrees) |
| Ω: | 10.2 | Longitude of ascending node (degrees) |
| T: | 1961.800 | Epoch of periastron passage (year) |
| e: | 0.78 | Eccentricity |
| ω: | 162.8 | Longitude of periastron (degrees) |
| Start-Year: | 1925.0 | Year |
| End-Year: | 2125.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 220039.40-500207.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22007-5002 | WDS designation |
| Discoverer Code: | I1450 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 208890 | HD catalog number |
| Hipparcos number: | 108651 | Hipparcos catalog number |
| V1: | 10.26 | Magnitude of the primary |
| V2: | 9.95 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | 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 0.862 352.5 ------------------------- 1925.0 0.734 16.2 1926.0 0.721 16.6 1927.0 0.709 17.0 1928.0 0.695 17.5 1929.0 0.682 17.9 1930.0 0.668 18.4 1931.0 0.654 18.8 1932.0 0.639 19.3 1933.0 0.624 19.9 1934.0 0.608 20.4 1935.0 0.592 21.0 1936.0 0.576 21.6 1937.0 0.559 22.3 1938.0 0.541 23.0 1939.0 0.524 23.7 1940.0 0.505 24.5 1941.0 0.486 25.4 1942.0 0.467 26.3 1943.0 0.446 27.3 1944.0 0.426 28.4 1945.0 0.404 29.6 1946.0 0.382 31.0 1947.0 0.359 32.5 1948.0 0.336 34.2 1949.0 0.312 36.2 1950.0 0.287 38.6 1951.0 0.261 41.4 1952.0 0.235 44.8 1953.0 0.209 49.1 1954.0 0.182 54.6 1955.0 0.155 62.1 1956.0 0.131 72.4 1957.0 0.110 87.1 1958.0 0.097 107.2 1959.0 0.095 130.6 1960.0 0.103 152.4 1961.0 0.117 169.8 1962.0 0.130 183.5 1963.0 0.137 195.3 1964.0 0.139 206.3 1965.0 0.137 217.2 1966.0 0.135 228.5 1967.0 0.135 240.0 1968.0 0.137 251.5 1969.0 0.142 262.3 1970.0 0.150 272.2 1971.0 0.161 280.9 1972.0 0.174 288.4 1973.0 0.188 294.9 1974.0 0.203 300.4 1975.0 0.220 305.1 1976.0 0.236 309.1 1977.0 0.253 312.7 1978.0 0.270 315.7 1979.0 0.288 318.4 1980.0 0.305 320.8 1981.0 0.322 322.9 1982.0 0.339 324.9 1983.0 0.356 326.6 1984.0 0.373 328.2 1985.0 0.389 329.6 1986.0 0.405 331.0 1987.0 0.421 332.2 1988.0 0.437 333.3 1989.0 0.453 334.4 1990.0 0.468 335.4 1991.0 0.483 336.3 1992.0 0.498 337.2 1993.0 0.512 338.0 1994.0 0.527 338.8 1995.0 0.541 339.5 1996.0 0.555 340.2 1997.0 0.568 340.9 1998.0 0.582 341.5 1999.0 0.595 342.1 2000.0 0.608 342.7 2001.0 0.620 343.3 2002.0 0.633 343.8 2003.0 0.645 344.3 2004.0 0.657 344.8 2005.0 0.669 345.3 2006.0 0.680 345.8 2007.0 0.692 346.2 2008.0 0.703 346.6 2009.0 0.714 347.0 2010.0 0.725 347.5 2011.0 0.735 347.8 2012.0 0.745 348.2 2013.0 0.756 348.6 2014.0 0.765 349.0 2015.0 0.775 349.3 2016.0 0.785 349.7 2017.0 0.794 350.0 2018.0 0.803 350.3 2019.0 0.812 350.7 2020.0 0.821 351.0 2021.0 0.829 351.3 2022.0 0.838 351.6 2023.0 0.846 351.9 2024.0 0.854 352.2 2025.0 0.862 352.5 2026.0 0.869 352.7 2027.0 0.877 353.0 2028.0 0.884 353.3 2029.0 0.891 353.5 2030.0 0.898 353.8 2031.0 0.905 354.1 2032.0 0.912 354.3 2033.0 0.918 354.6 2034.0 0.924 354.8 2035.0 0.930 355.1 2036.0 0.936 355.3 2037.0 0.942 355.5 2038.0 0.947 355.8 2039.0 0.953 356.0 2040.0 0.958 356.2 2041.0 0.963 356.5 2042.0 0.968 356.7 2043.0 0.973 356.9 2044.0 0.977 357.1 2045.0 0.982 357.4 2046.0 0.986 357.6 2047.0 0.990 357.8 2048.0 0.994 358.0 2049.0 0.997 358.2 2050.0 1.001 358.4 2051.0 1.004 358.6 2052.0 1.008 358.8 2053.0 1.011 359.0 2054.0 1.014 359.2 2055.0 1.016 359.5 2056.0 1.019 359.7 2057.0 1.021 359.9 2058.0 1.024 0.1 2059.0 1.026 0.3 2060.0 1.028 0.5 2061.0 1.029 0.7 2062.0 1.031 0.9 2063.0 1.032 1.1 2064.0 1.034 1.2 2065.0 1.035 1.4 2066.0 1.036 1.6 2067.0 1.036 1.8 2068.0 1.037 2.0 2069.0 1.037 2.2 2070.0 1.038 2.4 2071.0 1.038 2.6 2072.0 1.038 2.8 2073.0 1.037 3.0 2074.0 1.037 3.2 2075.0 1.036 3.4 2076.0 1.036 3.6 2077.0 1.035 3.8 2078.0 1.033 4.0 2079.0 1.032 4.2 2080.0 1.031 4.4 2081.0 1.029 4.6 2082.0 1.027 4.8 2083.0 1.025 5.0 2084.0 1.023 5.2 2085.0 1.021 5.4 2086.0 1.018 5.6 2087.0 1.015 5.8 2088.0 1.013 6.0 2089.0 1.009 6.2 2090.0 1.006 6.4 2091.0 1.003 6.6 2092.0 0.999 6.8 2093.0 0.995 7.0 2094.0 0.991 7.2 2095.0 0.987 7.5 2096.0 0.982 7.7 2097.0 0.978 7.9 2098.0 0.973 8.1 2099.0 0.968 8.3 2100.0 0.963 8.6 2101.0 0.957 8.8 2102.0 0.952 9.0 2103.0 0.946 9.2 2104.0 0.940 9.5 2105.0 0.933 9.7 2106.0 0.927 10.0 2107.0 0.920 10.2 2108.0 0.913 10.5 2109.0 0.906 10.7 2110.0 0.898 11.0 2111.0 0.891 11.2 2112.0 0.883 11.5 2113.0 0.874 11.8 2114.0 0.866 12.1 2115.0 0.857 12.3 2116.0 0.848 12.6 2117.0 0.839 12.9 2118.0 0.829 13.2 2119.0 0.820 13.5 2120.0 0.810 13.8 2121.0 0.799 14.2 2122.0 0.789 14.5 2123.0 0.778 14.8 2124.0 0.766 15.2