| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:10:00 |
| WDS: | STF2597AB | WDS ID/Discoverer |
| P: | 425.000 | Orbital period (years) |
| a: | 1.085 | Semi-major axis (arcseconds) |
| i: | 103.05 | Inclination (degrees) |
| Ω: | 264.03 | Longitude of ascending node (degrees) |
| T: | 1974.280 | Epoch of periastron passage (year) |
| e: | 0.9414 | Eccentricity |
| ω: | 327.9 | Longitude of periastron (degrees) |
| Start-Year: | 1813.0 | Year |
| End-Year: | 2237.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 195519.49-064404.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 19553-0644 | WDS designation |
| Discoverer Code: | STF2597AB | Discover designation and components |
| ADS number: | 13104 | Aitken Double Star catalog |
| HD number: | 188405 | HD catalog number |
| Hipparcos number: | 98038 | Hipparcos catalog number |
| V1: | 6.94 | Magnitude of the primary |
| V2: | 7.98 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | Date of last observation | |
| Orbit grade: | 4 | 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 0.804 98.9 ------------------------- 1813.0 1.801 90.9 1814.0 1.800 90.9 1815.0 1.798 90.9 1816.0 1.797 90.8 1817.0 1.795 90.8 1818.0 1.793 90.8 1819.0 1.791 90.8 1820.0 1.790 90.7 1821.0 1.788 90.7 1822.0 1.786 90.7 1823.0 1.784 90.7 1824.0 1.781 90.6 1825.0 1.779 90.6 1826.0 1.777 90.6 1827.0 1.775 90.6 1828.0 1.772 90.6 1829.0 1.770 90.5 1830.0 1.767 90.5 1831.0 1.765 90.5 1832.0 1.762 90.5 1833.0 1.760 90.4 1834.0 1.757 90.4 1835.0 1.754 90.4 1836.0 1.751 90.4 1837.0 1.748 90.3 1838.0 1.745 90.3 1839.0 1.742 90.3 1840.0 1.739 90.3 1841.0 1.736 90.2 1842.0 1.732 90.2 1843.0 1.729 90.2 1844.0 1.725 90.2 1845.0 1.722 90.1 1846.0 1.718 90.1 1847.0 1.715 90.1 1848.0 1.711 90.1 1849.0 1.707 90.0 1850.0 1.703 90.0 1851.0 1.699 90.0 1852.0 1.695 89.9 1853.0 1.691 89.9 1854.0 1.687 89.9 1855.0 1.683 89.9 1856.0 1.679 89.8 1857.0 1.674 89.8 1858.0 1.670 89.8 1859.0 1.665 89.8 1860.0 1.661 89.7 1861.0 1.656 89.7 1862.0 1.651 89.7 1863.0 1.646 89.7 1864.0 1.641 89.6 1865.0 1.636 89.6 1866.0 1.631 89.6 1867.0 1.626 89.5 1868.0 1.621 89.5 1869.0 1.615 89.5 1870.0 1.610 89.4 1871.0 1.605 89.4 1872.0 1.599 89.4 1873.0 1.593 89.4 1874.0 1.587 89.3 1875.0 1.582 89.3 1876.0 1.576 89.3 1877.0 1.570 89.2 1878.0 1.563 89.2 1879.0 1.557 89.2 1880.0 1.551 89.1 1881.0 1.545 89.1 1882.0 1.538 89.1 1883.0 1.531 89.0 1884.0 1.525 89.0 1885.0 1.518 89.0 1886.0 1.511 89.0 1887.0 1.504 88.9 1888.0 1.497 88.9 1889.0 1.490 88.9 1890.0 1.482 88.8 1891.0 1.475 88.8 1892.0 1.467 88.7 1893.0 1.460 88.7 1894.0 1.452 88.7 1895.0 1.444 88.6 1896.0 1.436 88.6 1897.0 1.428 88.6 1898.0 1.420 88.5 1899.0 1.412 88.5 1900.0 1.403 88.5 1901.0 1.395 88.4 1902.0 1.386 88.4 1903.0 1.377 88.3 1904.0 1.368 88.3 1905.0 1.359 88.3 1906.0 1.350 88.2 1907.0 1.341 88.2 1908.0 1.331 88.1 1909.0 1.322 88.1 1910.0 1.312 88.0 1911.0 1.302 88.0 1912.0 1.292 87.9 1913.0 1.282 87.9 1914.0 1.272 87.9 1915.0 1.261 87.8 1916.0 1.251 87.8 1917.0 1.240 87.7 1918.0 1.229 87.7 1919.0 1.218 87.6 1920.0 1.207 87.6 1921.0 1.195 87.5 1922.0 1.184 87.5 1923.0 1.172 87.4 1924.0 1.160 87.3 1925.0 1.148 87.3 1926.0 1.135 87.2 1927.0 1.123 87.2 1928.0 1.110 87.1 1929.0 1.097 87.0 1930.0 1.084 87.0 1931.0 1.071 86.9 1932.0 1.057 86.8 1933.0 1.043 86.8 1934.0 1.029 86.7 1935.0 1.015 86.6 1936.0 1.000 86.6 1937.0 0.985 86.5 1938.0 0.970 86.4 1939.0 0.955 86.3 1940.0 0.939 86.2 1941.0 0.923 86.2 1942.0 0.907 86.1 1943.0 0.890 86.0 1944.0 0.873 85.9 1945.0 0.856 85.8 1946.0 0.838 85.7 1947.0 0.820 85.6 1948.0 0.802 85.4 1949.0 0.783 85.3 1950.0 0.763 85.2 1951.0 0.743 85.1 1952.0 0.723 84.9 1953.0 0.702 84.8 1954.0 0.681 84.6 1955.0 0.659 84.4 1956.0 0.636 84.3 1957.0 0.613 84.1 1958.0 0.589 83.8 1959.0 0.564 83.6 1960.0 0.538 83.4 1961.0 0.511 83.1 1962.0 0.484 82.8 1963.0 0.455 82.4 1964.0 0.425 82.0 1965.0 0.393 81.6 1966.0 0.360 81.1 1967.0 0.324 80.4 1968.0 0.287 79.6 1969.0 0.246 78.5 1970.0 0.202 77.0 1971.0 0.153 74.6 1972.0 0.099 69.6 1973.0 0.038 49.5 1974.0 0.040 281.8 1975.0 0.074 259.4 1976.0 0.070 245.4 1977.0 0.059 227.2 1978.0 0.052 202.1 1979.0 0.055 175.0 1980.0 0.067 154.3 1981.0 0.085 140.9 1982.0 0.104 132.3 1983.0 0.124 126.4 1984.0 0.145 122.2 1985.0 0.166 119.0 1986.0 0.186 116.6 1987.0 0.206 114.6 1988.0 0.226 113.0 1989.0 0.246 111.6 1990.0 0.266 110.5 1991.0 0.285 109.4 1992.0 0.304 108.6 1993.0 0.322 107.8 1994.0 0.341 107.1 1995.0 0.359 106.5 1996.0 0.376 105.9 1997.0 0.394 105.4 1998.0 0.411 104.9 1999.0 0.428 104.5 2000.0 0.445 104.1 2001.0 0.461 103.7 2002.0 0.478 103.4 2003.0 0.494 103.1 2004.0 0.510 102.8 2005.0 0.525 102.5 2006.0 0.541 102.2 2007.0 0.556 102.0 2008.0 0.571 101.7 2009.0 0.586 101.5 2010.0 0.601 101.3 2011.0 0.616 101.1 2012.0 0.630 100.9 2013.0 0.644 100.7 2014.0 0.658 100.5 2015.0 0.672 100.3 2016.0 0.686 100.2 2017.0 0.700 100.0 2018.0 0.713 99.9 2019.0 0.727 99.7 2020.0 0.740 99.6 2021.0 0.753 99.4 2022.0 0.766 99.3 2023.0 0.779 99.2 2024.0 0.791 99.1 2025.0 0.804 98.9 2026.0 0.816 98.8 2027.0 0.829 98.7 2028.0 0.841 98.6 2029.0 0.853 98.5 2030.0 0.865 98.4 2031.0 0.877 98.3 2032.0 0.888 98.2 2033.0 0.900 98.1 2034.0 0.911 98.0 2035.0 0.923 97.9 2036.0 0.934 97.8 2037.0 0.945 97.8 2038.0 0.956 97.7 2039.0 0.967 97.6 2040.0 0.978 97.5 2041.0 0.989 97.4 2042.0 1.000 97.3 2043.0 1.010 97.3 2044.0 1.021 97.2 2045.0 1.031 97.1 2046.0 1.041 97.1 2047.0 1.051 97.0 2048.0 1.061 96.9 2049.0 1.071 96.9 2050.0 1.081 96.8 2051.0 1.091 96.7 2052.0 1.101 96.7 2053.0 1.111 96.6 2054.0 1.120 96.5 2055.0 1.130 96.5 2056.0 1.139 96.4 2057.0 1.148 96.4 2058.0 1.157 96.3 2059.0 1.167 96.2 2060.0 1.176 96.2 2061.0 1.185 96.1 2062.0 1.193 96.1 2063.0 1.202 96.0 2064.0 1.211 96.0 2065.0 1.220 95.9 2066.0 1.228 95.9 2067.0 1.237 95.8 2068.0 1.245 95.8 2069.0 1.253 95.7 2070.0 1.262 95.7 2071.0 1.270 95.6 2072.0 1.278 95.6 2073.0 1.286 95.5 2074.0 1.294 95.5 2075.0 1.302 95.4 2076.0 1.310 95.4 2077.0 1.318 95.4 2078.0 1.325 95.3 2079.0 1.333 95.3 2080.0 1.340 95.2 2081.0 1.348 95.2 2082.0 1.355 95.1 2083.0 1.363 95.1 2084.0 1.370 95.1 2085.0 1.377 95.0 2086.0 1.384 95.0 2087.0 1.391 94.9 2088.0 1.398 94.9 2089.0 1.405 94.9 2090.0 1.412 94.8 2091.0 1.419 94.8 2092.0 1.426 94.8 2093.0 1.432 94.7 2094.0 1.439 94.7 2095.0 1.446 94.6 2096.0 1.452 94.6 2097.0 1.459 94.6 2098.0 1.465 94.5 2099.0 1.471 94.5 2100.0 1.477 94.5 2101.0 1.484 94.4 2102.0 1.490 94.4 2103.0 1.496 94.4 2104.0 1.502 94.3 2105.0 1.508 94.3 2106.0 1.514 94.3 2107.0 1.519 94.2 2108.0 1.525 94.2 2109.0 1.531 94.2 2110.0 1.537 94.1 2111.0 1.542 94.1 2112.0 1.548 94.1 2113.0 1.553 94.0 2114.0 1.558 94.0 2115.0 1.564 94.0 2116.0 1.569 93.9 2117.0 1.574 93.9 2118.0 1.579 93.9 2119.0 1.585 93.9 2120.0 1.590 93.8 2121.0 1.595 93.8 2122.0 1.600 93.8 2123.0 1.604 93.7 2124.0 1.609 93.7 2125.0 1.614 93.7 2126.0 1.619 93.6 2127.0 1.623 93.6 2128.0 1.628 93.6 2129.0 1.632 93.6 2130.0 1.637 93.5 2131.0 1.641 93.5 2132.0 1.646 93.5 2133.0 1.650 93.4 2134.0 1.654 93.4 2135.0 1.658 93.4 2136.0 1.663 93.4 2137.0 1.667 93.3 2138.0 1.671 93.3 2139.0 1.675 93.3 2140.0 1.679 93.3 2141.0 1.683 93.2 2142.0 1.686 93.2 2143.0 1.690 93.2 2144.0 1.694 93.1 2145.0 1.697 93.1 2146.0 1.701 93.1 2147.0 1.705 93.1 2148.0 1.708 93.0 2149.0 1.712 93.0 2150.0 1.715 93.0 2151.0 1.718 93.0 2152.0 1.722 92.9 2153.0 1.725 92.9 2154.0 1.728 92.9 2155.0 1.731 92.9 2156.0 1.734 92.8 2157.0 1.737 92.8 2158.0 1.740 92.8 2159.0 1.743 92.8 2160.0 1.746 92.7 2161.0 1.749 92.7 2162.0 1.751 92.7 2163.0 1.754 92.7 2164.0 1.757 92.6 2165.0 1.759 92.6 2166.0 1.762 92.6 2167.0 1.764 92.6 2168.0 1.767 92.5 2169.0 1.769 92.5 2170.0 1.771 92.5 2171.0 1.774 92.5 2172.0 1.776 92.4 2173.0 1.778 92.4 2174.0 1.780 92.4 2175.0 1.782 92.4 2176.0 1.784 92.3 2177.0 1.786 92.3 2178.0 1.788 92.3 2179.0 1.790 92.3 2180.0 1.792 92.3 2181.0 1.793 92.2 2182.0 1.795 92.2 2183.0 1.797 92.2 2184.0 1.798 92.2 2185.0 1.800 92.1 2186.0 1.801 92.1 2187.0 1.803 92.1 2188.0 1.804 92.1 2189.0 1.805 92.0 2190.0 1.806 92.0 2191.0 1.808 92.0 2192.0 1.809 92.0 2193.0 1.810 91.9 2194.0 1.811 91.9 2195.0 1.812 91.9 2196.0 1.813 91.9 2197.0 1.814 91.9 2198.0 1.814 91.8 2199.0 1.815 91.8 2200.0 1.816 91.8 2201.0 1.817 91.8 2202.0 1.817 91.7 2203.0 1.818 91.7 2204.0 1.818 91.7 2205.0 1.819 91.7 2206.0 1.819 91.6 2207.0 1.819 91.6 2208.0 1.820 91.6 2209.0 1.820 91.6 2210.0 1.820 91.6 2211.0 1.820 91.5 2212.0 1.820 91.5 2213.0 1.820 91.5 2214.0 1.820 91.5 2215.0 1.820 91.4 2216.0 1.820 91.4 2217.0 1.820 91.4 2218.0 1.819 91.4 2219.0 1.819 91.3 2220.0 1.818 91.3 2221.0 1.818 91.3 2222.0 1.818 91.3 2223.0 1.817 91.3 2224.0 1.816 91.2 2225.0 1.816 91.2 2226.0 1.815 91.2 2227.0 1.814 91.2 2228.0 1.813 91.1 2229.0 1.812 91.1 2230.0 1.811 91.1 2231.0 1.810 91.1 2232.0 1.809 91.0 2233.0 1.808 91.0 2234.0 1.807 91.0 2235.0 1.806 91.0 2236.0 1.804 91.0