| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:58:08 |
| WDS: | STT354 | WDS ID/Discoverer |
| P: | 426.000 | Orbital period (years) |
| a: | 0.801 | Semi-major axis (arcseconds) |
| i: | 63.6 | Inclination (degrees) |
| Ω: | 149.7 | Longitude of ascending node (degrees) |
| T: | 1783.900 | Epoch of periastron passage (year) |
| e: | 0.504 | Eccentricity |
| ω: | 252.0 | Longitude of periastron (degrees) |
| Start-Year: | 1812.0 | Year |
| End-Year: | 2238.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 183201.73+064648.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18320+0647 | WDS designation |
| Discoverer Code: | STT354 | Discover designation and components |
| ADS number: | 11432 | Aitken Double Star catalog |
| HD number: | 170987 | HD catalog number |
| Hipparcos number: | 90851 | Hipparcos catalog number |
| V1: | 7.84 | Magnitude of the primary |
| V2: | 8.91 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | 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 0.554 220.4 ------------------------- 1812.0 0.424 130.4 1813.0 0.437 131.6 1814.0 0.449 132.6 1815.0 0.462 133.6 1816.0 0.474 134.6 1817.0 0.486 135.5 1818.0 0.498 136.3 1819.0 0.509 137.2 1820.0 0.521 138.0 1821.0 0.532 138.7 1822.0 0.542 139.4 1823.0 0.553 140.1 1824.0 0.563 140.8 1825.0 0.573 141.4 1826.0 0.583 142.1 1827.0 0.593 142.7 1828.0 0.602 143.2 1829.0 0.612 143.8 1830.0 0.621 144.4 1831.0 0.629 144.9 1832.0 0.638 145.4 1833.0 0.646 145.9 1834.0 0.654 146.4 1835.0 0.662 146.9 1836.0 0.670 147.4 1837.0 0.677 147.8 1838.0 0.685 148.3 1839.0 0.692 148.7 1840.0 0.699 149.1 1841.0 0.705 149.6 1842.0 0.712 150.0 1843.0 0.718 150.4 1844.0 0.724 150.8 1845.0 0.730 151.2 1846.0 0.736 151.6 1847.0 0.742 151.9 1848.0 0.747 152.3 1849.0 0.753 152.7 1850.0 0.758 153.0 1851.0 0.763 153.4 1852.0 0.768 153.8 1853.0 0.772 154.1 1854.0 0.777 154.5 1855.0 0.781 154.8 1856.0 0.785 155.1 1857.0 0.789 155.5 1858.0 0.793 155.8 1859.0 0.797 156.1 1860.0 0.801 156.5 1861.0 0.804 156.8 1862.0 0.808 157.1 1863.0 0.811 157.4 1864.0 0.814 157.7 1865.0 0.817 158.1 1866.0 0.820 158.4 1867.0 0.823 158.7 1868.0 0.825 159.0 1869.0 0.828 159.3 1870.0 0.830 159.6 1871.0 0.833 159.9 1872.0 0.835 160.2 1873.0 0.837 160.5 1874.0 0.839 160.8 1875.0 0.841 161.1 1876.0 0.843 161.4 1877.0 0.844 161.7 1878.0 0.846 162.0 1879.0 0.847 162.2 1880.0 0.849 162.5 1881.0 0.850 162.8 1882.0 0.851 163.1 1883.0 0.852 163.4 1884.0 0.853 163.7 1885.0 0.854 164.0 1886.0 0.855 164.3 1887.0 0.855 164.5 1888.0 0.856 164.8 1889.0 0.856 165.1 1890.0 0.857 165.4 1891.0 0.857 165.7 1892.0 0.858 166.0 1893.0 0.858 166.2 1894.0 0.858 166.5 1895.0 0.858 166.8 1896.0 0.858 167.1 1897.0 0.858 167.4 1898.0 0.858 167.7 1899.0 0.857 167.9 1900.0 0.857 168.2 1901.0 0.857 168.5 1902.0 0.856 168.8 1903.0 0.856 169.1 1904.0 0.855 169.4 1905.0 0.855 169.6 1906.0 0.854 169.9 1907.0 0.853 170.2 1908.0 0.852 170.5 1909.0 0.851 170.8 1910.0 0.850 171.1 1911.0 0.849 171.4 1912.0 0.848 171.7 1913.0 0.847 171.9 1914.0 0.846 172.2 1915.0 0.845 172.5 1916.0 0.843 172.8 1917.0 0.842 173.1 1918.0 0.841 173.4 1919.0 0.839 173.7 1920.0 0.838 174.0 1921.0 0.836 174.3 1922.0 0.834 174.6 1923.0 0.833 174.9 1924.0 0.831 175.2 1925.0 0.829 175.5 1926.0 0.828 175.8 1927.0 0.826 176.1 1928.0 0.824 176.4 1929.0 0.822 176.7 1930.0 0.820 177.0 1931.0 0.818 177.3 1932.0 0.816 177.7 1933.0 0.814 178.0 1934.0 0.812 178.3 1935.0 0.809 178.6 1936.0 0.807 178.9 1937.0 0.805 179.2 1938.0 0.803 179.6 1939.0 0.800 179.9 1940.0 0.798 180.2 1941.0 0.795 180.5 1942.0 0.793 180.9 1943.0 0.791 181.2 1944.0 0.788 181.5 1945.0 0.786 181.9 1946.0 0.783 182.2 1947.0 0.780 182.6 1948.0 0.778 182.9 1949.0 0.775 183.2 1950.0 0.773 183.6 1951.0 0.770 183.9 1952.0 0.767 184.3 1953.0 0.764 184.6 1954.0 0.762 185.0 1955.0 0.759 185.4 1956.0 0.756 185.7 1957.0 0.753 186.1 1958.0 0.750 186.5 1959.0 0.747 186.8 1960.0 0.744 187.2 1961.0 0.742 187.6 1962.0 0.739 188.0 1963.0 0.736 188.3 1964.0 0.733 188.7 1965.0 0.730 189.1 1966.0 0.727 189.5 1967.0 0.724 189.9 1968.0 0.721 190.3 1969.0 0.718 190.7 1970.0 0.715 191.1 1971.0 0.712 191.5 1972.0 0.708 191.9 1973.0 0.705 192.4 1974.0 0.702 192.8 1975.0 0.699 193.2 1976.0 0.696 193.6 1977.0 0.693 194.1 1978.0 0.690 194.5 1979.0 0.687 194.9 1980.0 0.684 195.4 1981.0 0.680 195.8 1982.0 0.677 196.3 1983.0 0.674 196.7 1984.0 0.671 197.2 1985.0 0.668 197.7 1986.0 0.665 198.1 1987.0 0.662 198.6 1988.0 0.659 199.1 1989.0 0.655 199.6 1990.0 0.652 200.1 1991.0 0.649 200.5 1992.0 0.646 201.0 1993.0 0.643 201.5 1994.0 0.640 202.0 1995.0 0.637 202.6 1996.0 0.634 203.1 1997.0 0.631 203.6 1998.0 0.628 204.1 1999.0 0.625 204.7 2000.0 0.622 205.2 2001.0 0.619 205.7 2002.0 0.616 206.3 2003.0 0.613 206.8 2004.0 0.610 207.4 2005.0 0.607 207.9 2006.0 0.604 208.5 2007.0 0.601 209.1 2008.0 0.598 209.7 2009.0 0.595 210.3 2010.0 0.592 210.8 2011.0 0.590 211.4 2012.0 0.587 212.0 2013.0 0.584 212.7 2014.0 0.581 213.3 2015.0 0.579 213.9 2016.0 0.576 214.5 2017.0 0.573 215.1 2018.0 0.571 215.8 2019.0 0.568 216.4 2020.0 0.566 217.1 2021.0 0.563 217.7 2022.0 0.561 218.4 2023.0 0.558 219.0 2024.0 0.556 219.7 2025.0 0.554 220.4 2026.0 0.551 221.1 2027.0 0.549 221.8 2028.0 0.547 222.5 2029.0 0.545 223.2 2030.0 0.543 223.9 2031.0 0.541 224.6 2032.0 0.539 225.3 2033.0 0.537 226.0 2034.0 0.535 226.7 2035.0 0.533 227.5 2036.0 0.531 228.2 2037.0 0.529 228.9 2038.0 0.527 229.7 2039.0 0.526 230.4 2040.0 0.524 231.2 2041.0 0.523 231.9 2042.0 0.521 232.7 2043.0 0.520 233.5 2044.0 0.518 234.3 2045.0 0.517 235.0 2046.0 0.516 235.8 2047.0 0.514 236.6 2048.0 0.513 237.4 2049.0 0.512 238.2 2050.0 0.511 239.0 2051.0 0.510 239.8 2052.0 0.509 240.6 2053.0 0.508 241.4 2054.0 0.508 242.2 2055.0 0.507 243.0 2056.0 0.506 243.8 2057.0 0.506 244.6 2058.0 0.505 245.4 2059.0 0.505 246.3 2060.0 0.504 247.1 2061.0 0.504 247.9 2062.0 0.504 248.7 2063.0 0.503 249.5 2064.0 0.503 250.4 2065.0 0.503 251.2 2066.0 0.503 252.0 2067.0 0.503 252.8 2068.0 0.503 253.6 2069.0 0.503 254.5 2070.0 0.504 255.3 2071.0 0.504 256.1 2072.0 0.504 256.9 2073.0 0.505 257.7 2074.0 0.505 258.6 2075.0 0.506 259.4 2076.0 0.506 260.2 2077.0 0.507 261.0 2078.0 0.508 261.8 2079.0 0.508 262.6 2080.0 0.509 263.4 2081.0 0.510 264.2 2082.0 0.511 265.0 2083.0 0.512 265.8 2084.0 0.513 266.6 2085.0 0.514 267.4 2086.0 0.515 268.2 2087.0 0.516 269.0 2088.0 0.517 269.8 2089.0 0.519 270.5 2090.0 0.520 271.3 2091.0 0.521 272.1 2092.0 0.523 272.8 2093.0 0.524 273.6 2094.0 0.525 274.4 2095.0 0.527 275.1 2096.0 0.528 275.9 2097.0 0.530 276.6 2098.0 0.532 277.3 2099.0 0.533 278.1 2100.0 0.535 278.8 2101.0 0.536 279.5 2102.0 0.538 280.2 2103.0 0.540 281.0 2104.0 0.541 281.7 2105.0 0.543 282.4 2106.0 0.545 283.1 2107.0 0.547 283.8 2108.0 0.549 284.5 2109.0 0.550 285.2 2110.0 0.552 285.9 2111.0 0.554 286.5 2112.0 0.556 287.2 2113.0 0.557 287.9 2114.0 0.559 288.6 2115.0 0.561 289.2 2116.0 0.563 289.9 2117.0 0.565 290.5 2118.0 0.566 291.2 2119.0 0.568 291.8 2120.0 0.570 292.5 2121.0 0.572 293.1 2122.0 0.573 293.7 2123.0 0.575 294.4 2124.0 0.577 295.0 2125.0 0.578 295.6 2126.0 0.580 296.2 2127.0 0.582 296.9 2128.0 0.583 297.5 2129.0 0.585 298.1 2130.0 0.586 298.7 2131.0 0.588 299.3 2132.0 0.589 299.9 2133.0 0.590 300.5 2134.0 0.592 301.1 2135.0 0.593 301.7 2136.0 0.594 302.3 2137.0 0.595 302.9 2138.0 0.596 303.5 2139.0 0.597 304.0 2140.0 0.598 304.6 2141.0 0.599 305.2 2142.0 0.600 305.8 2143.0 0.600 306.4 2144.0 0.601 306.9 2145.0 0.601 307.5 2146.0 0.602 308.1 2147.0 0.602 308.7 2148.0 0.602 309.2 2149.0 0.602 309.8 2150.0 0.602 310.4 2151.0 0.602 311.0 2152.0 0.602 311.5 2153.0 0.601 312.1 2154.0 0.601 312.7 2155.0 0.600 313.3 2156.0 0.599 313.8 2157.0 0.599 314.4 2158.0 0.597 315.0 2159.0 0.596 315.6 2160.0 0.595 316.2 2161.0 0.593 316.8 2162.0 0.591 317.4 2163.0 0.589 318.0 2164.0 0.587 318.6 2165.0 0.585 319.2 2166.0 0.582 319.8 2167.0 0.579 320.4 2168.0 0.577 321.0 2169.0 0.573 321.7 2170.0 0.570 322.3 2171.0 0.566 322.9 2172.0 0.562 323.6 2173.0 0.558 324.3 2174.0 0.554 324.9 2175.0 0.549 325.6 2176.0 0.544 326.3 2177.0 0.539 327.0 2178.0 0.533 327.7 2179.0 0.527 328.5 2180.0 0.521 329.2 2181.0 0.514 330.0 2182.0 0.507 330.8 2183.0 0.500 331.6 2184.0 0.493 332.5 2185.0 0.485 333.4 2186.0 0.477 334.3 2187.0 0.468 335.2 2188.0 0.459 336.2 2189.0 0.450 337.2 2190.0 0.440 338.2 2191.0 0.430 339.3 2192.0 0.420 340.5 2193.0 0.409 341.7 2194.0 0.398 343.0 2195.0 0.387 344.3 2196.0 0.375 345.7 2197.0 0.363 347.3 2198.0 0.351 348.9 2199.0 0.339 350.7 2200.0 0.326 352.5 2201.0 0.314 354.6 2202.0 0.301 356.8 2203.0 0.288 359.2 2204.0 0.275 1.8 2205.0 0.263 4.7 2206.0 0.251 7.8 2207.0 0.239 11.3 2208.0 0.227 15.2 2209.0 0.217 19.4 2210.0 0.207 24.0 2211.0 0.199 29.1 2212.0 0.191 34.6 2213.0 0.186 40.4 2214.0 0.182 46.6 2215.0 0.180 53.0 2216.0 0.180 59.5 2217.0 0.181 65.9 2218.0 0.185 72.1 2219.0 0.191 78.0 2220.0 0.198 83.5 2221.0 0.206 88.6 2222.0 0.216 93.3 2223.0 0.227 97.5 2224.0 0.238 101.4 2225.0 0.250 104.9 2226.0 0.263 108.1 2227.0 0.276 110.9 2228.0 0.289 113.5 2229.0 0.303 115.9 2230.0 0.317 118.1 2231.0 0.330 120.1 2232.0 0.344 121.9 2233.0 0.358 123.6 2234.0 0.371 125.2 2235.0 0.385 126.6 2236.0 0.398 128.0 2237.0 0.411 129.2