| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:55:54 |
| WDS: | STF2294 | WDS ID/Discoverer |
| P: | 344.837 | Orbital period (years) |
| a: | 0.732 | Semi-major axis (arcseconds) |
| i: | 101.6 | Inclination (degrees) |
| Ω: | 91.1 | Longitude of ascending node (degrees) |
| T: | 1890.086 | Epoch of periastron passage (year) |
| e: | 0.935 | Eccentricity |
| ω: | 173.8 | Longitude of periastron (degrees) |
| Start-Year: | 1853.0 | Year |
| End-Year: | 2197.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 181433.68+001032.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18146+0011 | WDS designation |
| Discoverer Code: | STF2294 | Discover designation and components |
| ADS number: | 11186 | Aitken Double Star catalog |
| HD number: | 167278 | HD catalog number |
| Hipparcos number: | 89393 | Hipparcos catalog number |
| V1: | 8.22 | Magnitude of the primary |
| V2: | 8.55 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2013 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 1.353 93.1 ------------------------- 1853.0 0.738 88.3 1854.0 0.725 88.2 1855.0 0.712 88.1 1856.0 0.699 88.0 1857.0 0.685 88.0 1858.0 0.671 87.9 1859.0 0.657 87.8 1860.0 0.643 87.7 1861.0 0.628 87.6 1862.0 0.613 87.5 1863.0 0.598 87.4 1864.0 0.583 87.3 1865.0 0.567 87.1 1866.0 0.551 87.0 1867.0 0.534 86.9 1868.0 0.517 86.7 1869.0 0.500 86.6 1870.0 0.482 86.4 1871.0 0.464 86.2 1872.0 0.446 86.0 1873.0 0.426 85.8 1874.0 0.407 85.6 1875.0 0.387 85.4 1876.0 0.366 85.1 1877.0 0.344 84.8 1878.0 0.322 84.4 1879.0 0.299 84.0 1880.0 0.275 83.5 1881.0 0.250 82.9 1882.0 0.224 82.2 1883.0 0.196 81.3 1884.0 0.167 80.1 1885.0 0.137 78.3 1886.0 0.104 75.5 1887.0 0.069 70.0 1888.0 0.033 52.4 1889.0 0.021 313.4 1890.0 0.046 273.9 1891.0 0.037 253.4 1892.0 0.020 188.7 1893.0 0.040 131.5 1894.0 0.070 117.3 1895.0 0.099 111.6 1896.0 0.127 108.4 1897.0 0.154 106.4 1898.0 0.180 104.9 1899.0 0.204 103.8 1900.0 0.228 103.0 1901.0 0.251 102.3 1902.0 0.273 101.7 1903.0 0.294 101.2 1904.0 0.315 100.8 1905.0 0.335 100.4 1906.0 0.355 100.1 1907.0 0.374 99.8 1908.0 0.393 99.5 1909.0 0.411 99.3 1910.0 0.429 99.0 1911.0 0.446 98.8 1912.0 0.463 98.6 1913.0 0.480 98.4 1914.0 0.496 98.3 1915.0 0.512 98.1 1916.0 0.527 98.0 1917.0 0.543 97.8 1918.0 0.558 97.7 1919.0 0.573 97.6 1920.0 0.587 97.5 1921.0 0.601 97.3 1922.0 0.615 97.2 1923.0 0.629 97.1 1924.0 0.643 97.0 1925.0 0.656 96.9 1926.0 0.669 96.9 1927.0 0.682 96.8 1928.0 0.695 96.7 1929.0 0.707 96.6 1930.0 0.720 96.5 1931.0 0.732 96.4 1932.0 0.744 96.4 1933.0 0.755 96.3 1934.0 0.767 96.2 1935.0 0.778 96.2 1936.0 0.790 96.1 1937.0 0.801 96.0 1938.0 0.812 96.0 1939.0 0.822 95.9 1940.0 0.833 95.9 1941.0 0.844 95.8 1942.0 0.854 95.7 1943.0 0.864 95.7 1944.0 0.874 95.6 1945.0 0.884 95.6 1946.0 0.894 95.5 1947.0 0.903 95.5 1948.0 0.913 95.4 1949.0 0.922 95.4 1950.0 0.932 95.3 1951.0 0.941 95.3 1952.0 0.950 95.3 1953.0 0.959 95.2 1954.0 0.967 95.2 1955.0 0.976 95.1 1956.0 0.984 95.1 1957.0 0.993 95.0 1958.0 1.001 95.0 1959.0 1.009 95.0 1960.0 1.018 94.9 1961.0 1.025 94.9 1962.0 1.033 94.8 1963.0 1.041 94.8 1964.0 1.049 94.8 1965.0 1.056 94.7 1966.0 1.064 94.7 1967.0 1.071 94.7 1968.0 1.078 94.6 1969.0 1.086 94.6 1970.0 1.093 94.6 1971.0 1.100 94.5 1972.0 1.107 94.5 1973.0 1.113 94.5 1974.0 1.120 94.4 1975.0 1.127 94.4 1976.0 1.133 94.4 1977.0 1.140 94.3 1978.0 1.146 94.3 1979.0 1.152 94.3 1980.0 1.158 94.3 1981.0 1.164 94.2 1982.0 1.170 94.2 1983.0 1.176 94.2 1984.0 1.182 94.1 1985.0 1.188 94.1 1986.0 1.193 94.1 1987.0 1.199 94.0 1988.0 1.204 94.0 1989.0 1.210 94.0 1990.0 1.215 94.0 1991.0 1.220 93.9 1992.0 1.225 93.9 1993.0 1.231 93.9 1994.0 1.236 93.9 1995.0 1.240 93.8 1996.0 1.245 93.8 1997.0 1.250 93.8 1998.0 1.255 93.8 1999.0 1.259 93.7 2000.0 1.264 93.7 2001.0 1.268 93.7 2002.0 1.273 93.7 2003.0 1.277 93.6 2004.0 1.281 93.6 2005.0 1.285 93.6 2006.0 1.289 93.6 2007.0 1.293 93.5 2008.0 1.297 93.5 2009.0 1.301 93.5 2010.0 1.305 93.5 2011.0 1.309 93.4 2012.0 1.312 93.4 2013.0 1.316 93.4 2014.0 1.319 93.4 2015.0 1.323 93.4 2016.0 1.326 93.3 2017.0 1.330 93.3 2018.0 1.333 93.3 2019.0 1.336 93.3 2020.0 1.339 93.2 2021.0 1.342 93.2 2022.0 1.345 93.2 2023.0 1.348 93.2 2024.0 1.351 93.1 2025.0 1.353 93.1 2026.0 1.356 93.1 2027.0 1.359 93.1 2028.0 1.361 93.1 2029.0 1.364 93.0 2030.0 1.366 93.0 2031.0 1.368 93.0 2032.0 1.371 93.0 2033.0 1.373 93.0 2034.0 1.375 92.9 2035.0 1.377 92.9 2036.0 1.379 92.9 2037.0 1.381 92.9 2038.0 1.383 92.9 2039.0 1.385 92.8 2040.0 1.386 92.8 2041.0 1.388 92.8 2042.0 1.390 92.8 2043.0 1.391 92.7 2044.0 1.393 92.7 2045.0 1.394 92.7 2046.0 1.396 92.7 2047.0 1.397 92.7 2048.0 1.398 92.6 2049.0 1.399 92.6 2050.0 1.400 92.6 2051.0 1.401 92.6 2052.0 1.402 92.6 2053.0 1.403 92.5 2054.0 1.404 92.5 2055.0 1.405 92.5 2056.0 1.405 92.5 2057.0 1.406 92.5 2058.0 1.407 92.4 2059.0 1.407 92.4 2060.0 1.408 92.4 2061.0 1.408 92.4 2062.0 1.408 92.4 2063.0 1.409 92.3 2064.0 1.409 92.3 2065.0 1.409 92.3 2066.0 1.409 92.3 2067.0 1.409 92.3 2068.0 1.409 92.2 2069.0 1.409 92.2 2070.0 1.409 92.2 2071.0 1.408 92.2 2072.0 1.408 92.2 2073.0 1.408 92.1 2074.0 1.407 92.1 2075.0 1.407 92.1 2076.0 1.406 92.1 2077.0 1.405 92.1 2078.0 1.405 92.0 2079.0 1.404 92.0 2080.0 1.403 92.0 2081.0 1.402 92.0 2082.0 1.401 92.0 2083.0 1.400 91.9 2084.0 1.399 91.9 2085.0 1.398 91.9 2086.0 1.397 91.9 2087.0 1.395 91.9 2088.0 1.394 91.8 2089.0 1.392 91.8 2090.0 1.391 91.8 2091.0 1.389 91.8 2092.0 1.388 91.8 2093.0 1.386 91.7 2094.0 1.384 91.7 2095.0 1.382 91.7 2096.0 1.380 91.7 2097.0 1.379 91.6 2098.0 1.376 91.6 2099.0 1.374 91.6 2100.0 1.372 91.6 2101.0 1.370 91.6 2102.0 1.368 91.5 2103.0 1.365 91.5 2104.0 1.363 91.5 2105.0 1.360 91.5 2106.0 1.358 91.5 2107.0 1.355 91.4 2108.0 1.352 91.4 2109.0 1.349 91.4 2110.0 1.347 91.4 2111.0 1.344 91.3 2112.0 1.341 91.3 2113.0 1.337 91.3 2114.0 1.334 91.3 2115.0 1.331 91.3 2116.0 1.328 91.2 2117.0 1.324 91.2 2118.0 1.321 91.2 2119.0 1.317 91.2 2120.0 1.314 91.1 2121.0 1.310 91.1 2122.0 1.306 91.1 2123.0 1.302 91.1 2124.0 1.298 91.1 2125.0 1.294 91.0 2126.0 1.290 91.0 2127.0 1.286 91.0 2128.0 1.282 91.0 2129.0 1.278 90.9 2130.0 1.273 90.9 2131.0 1.269 90.9 2132.0 1.264 90.9 2133.0 1.260 90.8 2134.0 1.255 90.8 2135.0 1.250 90.8 2136.0 1.245 90.8 2137.0 1.240 90.7 2138.0 1.235 90.7 2139.0 1.230 90.7 2140.0 1.225 90.7 2141.0 1.220 90.6 2142.0 1.214 90.6 2143.0 1.209 90.6 2144.0 1.203 90.5 2145.0 1.198 90.5 2146.0 1.192 90.5 2147.0 1.186 90.5 2148.0 1.180 90.4 2149.0 1.174 90.4 2150.0 1.168 90.4 2151.0 1.162 90.3 2152.0 1.155 90.3 2153.0 1.149 90.3 2154.0 1.143 90.3 2155.0 1.136 90.2 2156.0 1.129 90.2 2157.0 1.122 90.2 2158.0 1.116 90.1 2159.0 1.109 90.1 2160.0 1.101 90.1 2161.0 1.094 90.0 2162.0 1.087 90.0 2163.0 1.080 90.0 2164.0 1.072 89.9 2165.0 1.064 89.9 2166.0 1.057 89.9 2167.0 1.049 89.8 2168.0 1.041 89.8 2169.0 1.033 89.7 2170.0 1.024 89.7 2171.0 1.016 89.7 2172.0 1.008 89.6 2173.0 0.999 89.6 2174.0 0.990 89.6 2175.0 0.981 89.5 2176.0 0.972 89.5 2177.0 0.963 89.4 2178.0 0.954 89.4 2179.0 0.945 89.3 2180.0 0.935 89.3 2181.0 0.925 89.2 2182.0 0.916 89.2 2183.0 0.906 89.2 2184.0 0.895 89.1 2185.0 0.885 89.1 2186.0 0.875 89.0 2187.0 0.864 88.9 2188.0 0.853 88.9 2189.0 0.842 88.8 2190.0 0.831 88.8 2191.0 0.820 88.7 2192.0 0.809 88.7 2193.0 0.797 88.6 2194.0 0.785 88.5 2195.0 0.773 88.5 2196.0 0.761 88.4