| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:33:21 |
| WDS: | STF2900AB | WDS ID/Discoverer |
| P: | 407.100 | Orbital period (years) |
| a: | 2.03 | Semi-major axis (arcseconds) |
| i: | 91.5 | Inclination (degrees) |
| Ω: | 180.4 | Longitude of ascending node (degrees) |
| T: | 2000.070 | Epoch of periastron passage (year) |
| e: | 0.827 | Eccentricity |
| ω: | 220.6 | Longitude of periastron (degrees) |
| Start-Year: | 1822.0 | Year |
| End-Year: | 2228.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 222339.56+205054.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22237+2051 | WDS designation |
| Discoverer Code: | STF2900AB | Discover designation and components |
| ADS number: | 15896 | Aitken Double Star catalog |
| HD number: | 212395 | HD catalog number |
| Hipparcos number: | 110548 | Hipparcos catalog number |
| V1: | 6.28 | Magnitude of the primary |
| V2: | 9.18 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2017 | 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 1.296 180.7 ------------------------- 1822.0 2.622 178.9 1823.0 2.613 178.9 1824.0 2.604 178.9 1825.0 2.594 178.9 1826.0 2.585 178.9 1827.0 2.575 178.9 1828.0 2.566 178.9 1829.0 2.556 178.9 1830.0 2.546 178.9 1831.0 2.537 178.9 1832.0 2.527 178.8 1833.0 2.516 178.8 1834.0 2.506 178.8 1835.0 2.496 178.8 1836.0 2.485 178.8 1837.0 2.475 178.8 1838.0 2.464 178.8 1839.0 2.454 178.8 1840.0 2.443 178.8 1841.0 2.432 178.8 1842.0 2.421 178.8 1843.0 2.409 178.8 1844.0 2.398 178.7 1845.0 2.387 178.7 1846.0 2.375 178.7 1847.0 2.364 178.7 1848.0 2.352 178.7 1849.0 2.340 178.7 1850.0 2.328 178.7 1851.0 2.316 178.7 1852.0 2.304 178.7 1853.0 2.292 178.7 1854.0 2.280 178.6 1855.0 2.267 178.6 1856.0 2.255 178.6 1857.0 2.242 178.6 1858.0 2.229 178.6 1859.0 2.217 178.6 1860.0 2.204 178.6 1861.0 2.191 178.6 1862.0 2.177 178.6 1863.0 2.164 178.5 1864.0 2.151 178.5 1865.0 2.137 178.5 1866.0 2.124 178.5 1867.0 2.110 178.5 1868.0 2.096 178.5 1869.0 2.082 178.5 1870.0 2.068 178.5 1871.0 2.054 178.5 1872.0 2.040 178.4 1873.0 2.026 178.4 1874.0 2.011 178.4 1875.0 1.997 178.4 1876.0 1.982 178.4 1877.0 1.967 178.4 1878.0 1.952 178.4 1879.0 1.937 178.3 1880.0 1.922 178.3 1881.0 1.907 178.3 1882.0 1.892 178.3 1883.0 1.876 178.3 1884.0 1.861 178.3 1885.0 1.845 178.3 1886.0 1.830 178.2 1887.0 1.814 178.2 1888.0 1.798 178.2 1889.0 1.782 178.2 1890.0 1.766 178.2 1891.0 1.749 178.2 1892.0 1.733 178.1 1893.0 1.716 178.1 1894.0 1.700 178.1 1895.0 1.683 178.1 1896.0 1.666 178.1 1897.0 1.649 178.0 1898.0 1.632 178.0 1899.0 1.615 178.0 1900.0 1.597 178.0 1901.0 1.580 178.0 1902.0 1.563 177.9 1903.0 1.545 177.9 1904.0 1.527 177.9 1905.0 1.509 177.9 1906.0 1.491 177.8 1907.0 1.473 177.8 1908.0 1.455 177.8 1909.0 1.437 177.8 1910.0 1.418 177.7 1911.0 1.399 177.7 1912.0 1.381 177.7 1913.0 1.362 177.7 1914.0 1.343 177.6 1915.0 1.324 177.6 1916.0 1.305 177.6 1917.0 1.285 177.5 1918.0 1.266 177.5 1919.0 1.246 177.5 1920.0 1.227 177.4 1921.0 1.207 177.4 1922.0 1.187 177.4 1923.0 1.167 177.3 1924.0 1.147 177.3 1925.0 1.127 177.2 1926.0 1.106 177.2 1927.0 1.086 177.2 1928.0 1.065 177.1 1929.0 1.044 177.1 1930.0 1.023 177.0 1931.0 1.002 177.0 1932.0 0.981 176.9 1933.0 0.960 176.8 1934.0 0.939 176.8 1935.0 0.917 176.7 1936.0 0.895 176.7 1937.0 0.874 176.6 1938.0 0.852 176.5 1939.0 0.830 176.4 1940.0 0.807 176.4 1941.0 0.785 176.3 1942.0 0.763 176.2 1943.0 0.740 176.1 1944.0 0.718 176.0 1945.0 0.695 175.9 1946.0 0.672 175.8 1947.0 0.649 175.6 1948.0 0.626 175.5 1949.0 0.602 175.4 1950.0 0.579 175.2 1951.0 0.555 175.1 1952.0 0.532 174.9 1953.0 0.508 174.7 1954.0 0.484 174.5 1955.0 0.460 174.2 1956.0 0.436 173.9 1957.0 0.411 173.6 1958.0 0.387 173.3 1959.0 0.362 172.9 1960.0 0.338 172.5 1961.0 0.313 172.0 1962.0 0.288 171.4 1963.0 0.264 170.7 1964.0 0.239 169.8 1965.0 0.214 168.8 1966.0 0.189 167.5 1967.0 0.164 165.7 1968.0 0.139 163.4 1969.0 0.115 160.0 1970.0 0.091 154.9 1971.0 0.068 146.2 1972.0 0.048 129.7 1973.0 0.037 98.1 1974.0 0.041 60.1 1975.0 0.058 37.1 1976.0 0.080 25.4 1977.0 0.103 18.9 1978.0 0.127 14.8 1979.0 0.152 12.0 1980.0 0.176 10.0 1981.0 0.201 8.5 1982.0 0.225 7.3 1983.0 0.249 6.3 1984.0 0.273 5.6 1985.0 0.296 4.9 1986.0 0.318 4.3 1987.0 0.339 3.8 1988.0 0.360 3.4 1989.0 0.379 3.0 1990.0 0.396 2.6 1991.0 0.411 2.3 1992.0 0.423 2.0 1993.0 0.432 1.7 1994.0 0.436 1.4 1995.0 0.434 1.1 1996.0 0.425 0.9 1997.0 0.406 0.5 1998.0 0.375 0.2 1999.0 0.330 359.8 2000.0 0.271 359.2 2001.0 0.200 358.2 2002.0 0.121 356.0 2003.0 0.037 344.1 2004.0 0.051 193.3 2005.0 0.135 185.5 2006.0 0.217 183.7 2007.0 0.296 182.9 2008.0 0.372 182.4 2009.0 0.444 182.0 2010.0 0.514 181.8 2011.0 0.581 181.6 2012.0 0.645 181.5 2013.0 0.706 181.4 2014.0 0.765 181.3 2015.0 0.822 181.2 2016.0 0.877 181.1 2017.0 0.929 181.0 2018.0 0.980 181.0 2019.0 1.030 180.9 2020.0 1.078 180.9 2021.0 1.124 180.8 2022.0 1.169 180.8 2023.0 1.212 180.8 2024.0 1.255 180.7 2025.0 1.296 180.7 2026.0 1.336 180.7 2027.0 1.375 180.6 2028.0 1.413 180.6 2029.0 1.450 180.6 2030.0 1.486 180.6 2031.0 1.521 180.5 2032.0 1.556 180.5 2033.0 1.589 180.5 2034.0 1.622 180.5 2035.0 1.654 180.4 2036.0 1.685 180.4 2037.0 1.715 180.4 2038.0 1.745 180.4 2039.0 1.775 180.4 2040.0 1.803 180.4 2041.0 1.831 180.3 2042.0 1.858 180.3 2043.0 1.885 180.3 2044.0 1.911 180.3 2045.0 1.937 180.3 2046.0 1.962 180.3 2047.0 1.987 180.2 2048.0 2.011 180.2 2049.0 2.035 180.2 2050.0 2.058 180.2 2051.0 2.081 180.2 2052.0 2.103 180.2 2053.0 2.125 180.2 2054.0 2.146 180.2 2055.0 2.167 180.1 2056.0 2.188 180.1 2057.0 2.208 180.1 2058.0 2.228 180.1 2059.0 2.247 180.1 2060.0 2.267 180.1 2061.0 2.285 180.1 2062.0 2.304 180.1 2063.0 2.322 180.1 2064.0 2.339 180.1 2065.0 2.357 180.0 2066.0 2.374 180.0 2067.0 2.390 180.0 2068.0 2.407 180.0 2069.0 2.423 180.0 2070.0 2.438 180.0 2071.0 2.454 180.0 2072.0 2.469 180.0 2073.0 2.484 180.0 2074.0 2.498 180.0 2075.0 2.513 180.0 2076.0 2.526 179.9 2077.0 2.540 179.9 2078.0 2.554 179.9 2079.0 2.567 179.9 2080.0 2.580 179.9 2081.0 2.592 179.9 2082.0 2.605 179.9 2083.0 2.617 179.9 2084.0 2.629 179.9 2085.0 2.641 179.9 2086.0 2.652 179.9 2087.0 2.663 179.9 2088.0 2.674 179.9 2089.0 2.685 179.8 2090.0 2.695 179.8 2091.0 2.706 179.8 2092.0 2.716 179.8 2093.0 2.725 179.8 2094.0 2.735 179.8 2095.0 2.744 179.8 2096.0 2.754 179.8 2097.0 2.763 179.8 2098.0 2.771 179.8 2099.0 2.780 179.8 2100.0 2.788 179.8 2101.0 2.796 179.8 2102.0 2.804 179.8 2103.0 2.812 179.7 2104.0 2.820 179.7 2105.0 2.827 179.7 2106.0 2.834 179.7 2107.0 2.841 179.7 2108.0 2.848 179.7 2109.0 2.855 179.7 2110.0 2.861 179.7 2111.0 2.868 179.7 2112.0 2.874 179.7 2113.0 2.880 179.7 2114.0 2.885 179.7 2115.0 2.891 179.7 2116.0 2.896 179.7 2117.0 2.901 179.7 2118.0 2.906 179.6 2119.0 2.911 179.6 2120.0 2.916 179.6 2121.0 2.921 179.6 2122.0 2.925 179.6 2123.0 2.929 179.6 2124.0 2.933 179.6 2125.0 2.937 179.6 2126.0 2.941 179.6 2127.0 2.945 179.6 2128.0 2.948 179.6 2129.0 2.951 179.6 2130.0 2.954 179.6 2131.0 2.957 179.6 2132.0 2.960 179.6 2133.0 2.963 179.6 2134.0 2.965 179.5 2135.0 2.968 179.5 2136.0 2.970 179.5 2137.0 2.972 179.5 2138.0 2.974 179.5 2139.0 2.976 179.5 2140.0 2.977 179.5 2141.0 2.979 179.5 2142.0 2.980 179.5 2143.0 2.981 179.5 2144.0 2.982 179.5 2145.0 2.983 179.5 2146.0 2.984 179.5 2147.0 2.985 179.5 2148.0 2.985 179.5 2149.0 2.986 179.5 2150.0 2.986 179.4 2151.0 2.986 179.4 2152.0 2.986 179.4 2153.0 2.986 179.4 2154.0 2.986 179.4 2155.0 2.985 179.4 2156.0 2.985 179.4 2157.0 2.984 179.4 2158.0 2.983 179.4 2159.0 2.982 179.4 2160.0 2.981 179.4 2161.0 2.980 179.4 2162.0 2.979 179.4 2163.0 2.977 179.4 2164.0 2.975 179.4 2165.0 2.974 179.4 2166.0 2.972 179.4 2167.0 2.970 179.3 2168.0 2.968 179.3 2169.0 2.966 179.3 2170.0 2.963 179.3 2171.0 2.961 179.3 2172.0 2.958 179.3 2173.0 2.956 179.3 2174.0 2.953 179.3 2175.0 2.950 179.3 2176.0 2.947 179.3 2177.0 2.944 179.3 2178.0 2.940 179.3 2179.0 2.937 179.3 2180.0 2.933 179.3 2181.0 2.930 179.3 2182.0 2.926 179.3 2183.0 2.922 179.2 2184.0 2.918 179.2 2185.0 2.914 179.2 2186.0 2.910 179.2 2187.0 2.905 179.2 2188.0 2.901 179.2 2189.0 2.896 179.2 2190.0 2.892 179.2 2191.0 2.887 179.2 2192.0 2.882 179.2 2193.0 2.877 179.2 2194.0 2.872 179.2 2195.0 2.867 179.2 2196.0 2.861 179.2 2197.0 2.856 179.2 2198.0 2.850 179.2 2199.0 2.844 179.1 2200.0 2.839 179.1 2201.0 2.833 179.1 2202.0 2.827 179.1 2203.0 2.821 179.1 2204.0 2.814 179.1 2205.0 2.808 179.1 2206.0 2.801 179.1 2207.0 2.795 179.1 2208.0 2.788 179.1 2209.0 2.781 179.1 2210.0 2.774 179.1 2211.0 2.767 179.1 2212.0 2.760 179.1 2213.0 2.753 179.0 2214.0 2.746 179.0 2215.0 2.738 179.0 2216.0 2.731 179.0 2217.0 2.723 179.0 2218.0 2.715 179.0 2219.0 2.707 179.0 2220.0 2.699 179.0 2221.0 2.691 179.0 2222.0 2.683 179.0 2223.0 2.675 179.0 2224.0 2.666 179.0 2225.0 2.658 179.0 2226.0 2.649 179.0 2227.0 2.641 178.9