| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:19:23 |
| WDS: | STT527 | WDS ID/Discoverer |
| P: | 561.150 | Orbital period (years) |
| a: | 0.5576 | Semi-major axis (arcseconds) |
| i: | 117.09 | Inclination (degrees) |
| Ω: | 91.3 | Longitude of ascending node (degrees) |
| T: | 1950.180 | Epoch of periastron passage (year) |
| e: | 0.4192 | Eccentricity |
| ω: | 240.24 | Longitude of periastron (degrees) |
| Start-Year: | 1745.0 | Year |
| End-Year: | 2305.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 210800.68+050906.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21080+0509 | WDS designation |
| Discoverer Code: | STT527 | Discover designation and components |
| ADS number: | 14666 | Aitken Double Star catalog |
| HD number: | 201221 | HD catalog number |
| Hipparcos number: | 104324 | Hipparcos catalog number |
| V1: | 7.14 | Magnitude of the primary |
| V2: | 8.14 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1987 | 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 0.448 102.7 ------------------------- 1745.0 0.351 16.7 1746.0 0.350 16.0 1747.0 0.349 15.4 1748.0 0.347 14.7 1749.0 0.346 14.0 1750.0 0.345 13.3 1751.0 0.344 12.6 1752.0 0.342 11.9 1753.0 0.341 11.2 1754.0 0.340 10.5 1755.0 0.339 9.8 1756.0 0.338 9.1 1757.0 0.337 8.3 1758.0 0.336 7.6 1759.0 0.335 6.9 1760.0 0.334 6.1 1761.0 0.333 5.4 1762.0 0.332 4.7 1763.0 0.332 3.9 1764.0 0.331 3.2 1765.0 0.330 2.4 1766.0 0.329 1.6 1767.0 0.329 0.9 1768.0 0.328 0.1 1769.0 0.328 359.3 1770.0 0.327 358.6 1771.0 0.326 357.8 1772.0 0.326 357.0 1773.0 0.326 356.3 1774.0 0.325 355.5 1775.0 0.325 354.7 1776.0 0.325 353.9 1777.0 0.324 353.1 1778.0 0.324 352.3 1779.0 0.324 351.6 1780.0 0.324 350.8 1781.0 0.324 350.0 1782.0 0.324 349.2 1783.0 0.324 348.4 1784.0 0.324 347.6 1785.0 0.324 346.8 1786.0 0.324 346.1 1787.0 0.324 345.3 1788.0 0.324 344.5 1789.0 0.325 343.7 1790.0 0.325 342.9 1791.0 0.325 342.1 1792.0 0.326 341.4 1793.0 0.326 340.6 1794.0 0.326 339.8 1795.0 0.327 339.0 1796.0 0.327 338.3 1797.0 0.328 337.5 1798.0 0.328 336.7 1799.0 0.329 336.0 1800.0 0.330 335.2 1801.0 0.330 334.4 1802.0 0.331 333.7 1803.0 0.332 332.9 1804.0 0.332 332.2 1805.0 0.333 331.4 1806.0 0.334 330.7 1807.0 0.335 330.0 1808.0 0.336 329.2 1809.0 0.337 328.5 1810.0 0.338 327.8 1811.0 0.339 327.1 1812.0 0.340 326.3 1813.0 0.341 325.6 1814.0 0.342 324.9 1815.0 0.343 324.2 1816.0 0.344 323.5 1817.0 0.345 322.8 1818.0 0.346 322.1 1819.0 0.347 321.4 1820.0 0.348 320.8 1821.0 0.350 320.1 1822.0 0.351 319.4 1823.0 0.352 318.8 1824.0 0.353 318.1 1825.0 0.355 317.4 1826.0 0.356 316.8 1827.0 0.357 316.1 1828.0 0.358 315.5 1829.0 0.360 314.8 1830.0 0.361 314.2 1831.0 0.362 313.6 1832.0 0.364 313.0 1833.0 0.365 312.3 1834.0 0.366 311.7 1835.0 0.368 311.1 1836.0 0.369 310.5 1837.0 0.370 309.9 1838.0 0.372 309.3 1839.0 0.373 308.7 1840.0 0.374 308.1 1841.0 0.376 307.5 1842.0 0.377 306.9 1843.0 0.378 306.4 1844.0 0.380 305.8 1845.0 0.381 305.2 1846.0 0.382 304.6 1847.0 0.384 304.1 1848.0 0.385 303.5 1849.0 0.386 303.0 1850.0 0.387 302.4 1851.0 0.389 301.9 1852.0 0.390 301.3 1853.0 0.391 300.8 1854.0 0.392 300.2 1855.0 0.393 299.7 1856.0 0.394 299.2 1857.0 0.396 298.7 1858.0 0.397 298.1 1859.0 0.398 297.6 1860.0 0.399 297.1 1861.0 0.400 296.6 1862.0 0.401 296.1 1863.0 0.402 295.5 1864.0 0.403 295.0 1865.0 0.404 294.5 1866.0 0.404 294.0 1867.0 0.405 293.5 1868.0 0.406 293.0 1869.0 0.407 292.5 1870.0 0.408 292.0 1871.0 0.408 291.5 1872.0 0.409 291.0 1873.0 0.409 290.5 1874.0 0.410 290.0 1875.0 0.410 289.6 1876.0 0.411 289.1 1877.0 0.411 288.6 1878.0 0.412 288.1 1879.0 0.412 287.6 1880.0 0.412 287.1 1881.0 0.412 286.6 1882.0 0.412 286.1 1883.0 0.412 285.7 1884.0 0.412 285.2 1885.0 0.412 284.7 1886.0 0.412 284.2 1887.0 0.412 283.7 1888.0 0.411 283.2 1889.0 0.411 282.7 1890.0 0.411 282.3 1891.0 0.410 281.8 1892.0 0.410 281.3 1893.0 0.409 280.8 1894.0 0.408 280.3 1895.0 0.407 279.8 1896.0 0.406 279.3 1897.0 0.405 278.8 1898.0 0.404 278.3 1899.0 0.403 277.8 1900.0 0.402 277.3 1901.0 0.400 276.8 1902.0 0.399 276.2 1903.0 0.397 275.7 1904.0 0.396 275.2 1905.0 0.394 274.7 1906.0 0.392 274.1 1907.0 0.390 273.6 1908.0 0.388 273.0 1909.0 0.386 272.5 1910.0 0.383 271.9 1911.0 0.381 271.4 1912.0 0.378 270.8 1913.0 0.376 270.2 1914.0 0.373 269.6 1915.0 0.370 269.0 1916.0 0.367 268.4 1917.0 0.364 267.8 1918.0 0.361 267.2 1919.0 0.357 266.5 1920.0 0.354 265.9 1921.0 0.350 265.2 1922.0 0.346 264.5 1923.0 0.343 263.8 1924.0 0.339 263.1 1925.0 0.335 262.4 1926.0 0.330 261.7 1927.0 0.326 260.9 1928.0 0.322 260.1 1929.0 0.317 259.3 1930.0 0.313 258.5 1931.0 0.308 257.6 1932.0 0.303 256.7 1933.0 0.298 255.8 1934.0 0.293 254.9 1935.0 0.288 253.9 1936.0 0.283 252.9 1937.0 0.278 251.8 1938.0 0.272 250.7 1939.0 0.267 249.6 1940.0 0.261 248.4 1941.0 0.256 247.2 1942.0 0.250 245.9 1943.0 0.245 244.6 1944.0 0.239 243.1 1945.0 0.234 241.7 1946.0 0.228 240.1 1947.0 0.223 238.5 1948.0 0.217 236.8 1949.0 0.212 235.0 1950.0 0.206 233.1 1951.0 0.201 231.1 1952.0 0.196 229.0 1953.0 0.191 226.8 1954.0 0.186 224.5 1955.0 0.182 222.1 1956.0 0.178 219.5 1957.0 0.173 216.9 1958.0 0.170 214.1 1959.0 0.166 211.1 1960.0 0.163 208.1 1961.0 0.160 204.9 1962.0 0.158 201.7 1963.0 0.156 198.3 1964.0 0.155 194.9 1965.0 0.154 191.4 1966.0 0.153 187.9 1967.0 0.153 184.4 1968.0 0.154 180.9 1969.0 0.154 177.4 1970.0 0.156 174.0 1971.0 0.158 170.6 1972.0 0.160 167.4 1973.0 0.163 164.2 1974.0 0.166 161.2 1975.0 0.170 158.2 1976.0 0.173 155.4 1977.0 0.178 152.7 1978.0 0.182 150.2 1979.0 0.187 147.8 1980.0 0.192 145.4 1981.0 0.197 143.3 1982.0 0.202 141.2 1983.0 0.207 139.2 1984.0 0.213 137.3 1985.0 0.219 135.6 1986.0 0.225 133.9 1987.0 0.231 132.3 1988.0 0.237 130.8 1989.0 0.243 129.4 1990.0 0.249 128.0 1991.0 0.255 126.7 1992.0 0.261 125.4 1993.0 0.267 124.3 1994.0 0.273 123.1 1995.0 0.280 122.1 1996.0 0.286 121.0 1997.0 0.292 120.0 1998.0 0.298 119.1 1999.0 0.304 118.2 2000.0 0.310 117.3 2001.0 0.317 116.5 2002.0 0.323 115.7 2003.0 0.329 114.9 2004.0 0.335 114.1 2005.0 0.341 113.4 2006.0 0.346 112.7 2007.0 0.352 112.0 2008.0 0.358 111.4 2009.0 0.364 110.7 2010.0 0.370 110.1 2011.0 0.375 109.5 2012.0 0.381 109.0 2013.0 0.386 108.4 2014.0 0.392 107.9 2015.0 0.397 107.3 2016.0 0.403 106.8 2017.0 0.408 106.3 2018.0 0.413 105.8 2019.0 0.418 105.3 2020.0 0.423 104.9 2021.0 0.428 104.4 2022.0 0.433 104.0 2023.0 0.438 103.5 2024.0 0.443 103.1 2025.0 0.448 102.7 2026.0 0.453 102.3 2027.0 0.457 101.9 2028.0 0.462 101.5 2029.0 0.466 101.1 2030.0 0.471 100.7 2031.0 0.475 100.4 2032.0 0.480 100.0 2033.0 0.484 99.7 2034.0 0.488 99.3 2035.0 0.492 99.0 2036.0 0.496 98.6 2037.0 0.500 98.3 2038.0 0.504 98.0 2039.0 0.508 97.7 2040.0 0.512 97.3 2041.0 0.516 97.0 2042.0 0.519 96.7 2043.0 0.523 96.4 2044.0 0.526 96.1 2045.0 0.530 95.8 2046.0 0.533 95.5 2047.0 0.537 95.2 2048.0 0.540 95.0 2049.0 0.543 94.7 2050.0 0.547 94.4 2051.0 0.550 94.1 2052.0 0.553 93.8 2053.0 0.556 93.6 2054.0 0.559 93.3 2055.0 0.562 93.0 2056.0 0.565 92.8 2057.0 0.567 92.5 2058.0 0.570 92.3 2059.0 0.573 92.0 2060.0 0.575 91.8 2061.0 0.578 91.5 2062.0 0.581 91.3 2063.0 0.583 91.0 2064.0 0.585 90.8 2065.0 0.588 90.6 2066.0 0.590 90.3 2067.0 0.592 90.1 2068.0 0.595 89.8 2069.0 0.597 89.6 2070.0 0.599 89.4 2071.0 0.601 89.2 2072.0 0.603 88.9 2073.0 0.605 88.7 2074.0 0.607 88.5 2075.0 0.609 88.3 2076.0 0.610 88.0 2077.0 0.612 87.8 2078.0 0.614 87.6 2079.0 0.616 87.4 2080.0 0.617 87.2 2081.0 0.619 86.9 2082.0 0.620 86.7 2083.0 0.622 86.5 2084.0 0.623 86.3 2085.0 0.625 86.1 2086.0 0.626 85.9 2087.0 0.627 85.7 2088.0 0.629 85.5 2089.0 0.630 85.2 2090.0 0.631 85.0 2091.0 0.632 84.8 2092.0 0.633 84.6 2093.0 0.634 84.4 2094.0 0.635 84.2 2095.0 0.636 84.0 2096.0 0.637 83.8 2097.0 0.638 83.6 2098.0 0.639 83.4 2099.0 0.640 83.2 2100.0 0.640 83.0 2101.0 0.641 82.8 2102.0 0.642 82.6 2103.0 0.642 82.4 2104.0 0.643 82.2 2105.0 0.643 82.0 2106.0 0.644 81.8 2107.0 0.645 81.6 2108.0 0.645 81.4 2109.0 0.645 81.2 2110.0 0.646 81.0 2111.0 0.646 80.8 2112.0 0.646 80.6 2113.0 0.647 80.4 2114.0 0.647 80.2 2115.0 0.647 80.0 2116.0 0.647 79.8 2117.0 0.647 79.6 2118.0 0.648 79.4 2119.0 0.648 79.2 2120.0 0.648 79.0 2121.0 0.648 78.8 2122.0 0.648 78.6 2123.0 0.647 78.4 2124.0 0.647 78.3 2125.0 0.647 78.1 2126.0 0.647 77.9 2127.0 0.647 77.7 2128.0 0.647 77.5 2129.0 0.646 77.3 2130.0 0.646 77.1 2131.0 0.646 76.9 2132.0 0.645 76.7 2133.0 0.645 76.5 2134.0 0.645 76.3 2135.0 0.644 76.1 2136.0 0.644 75.9 2137.0 0.643 75.7 2138.0 0.643 75.5 2139.0 0.642 75.3 2140.0 0.642 75.1 2141.0 0.641 74.9 2142.0 0.640 74.7 2143.0 0.640 74.5 2144.0 0.639 74.3 2145.0 0.638 74.1 2146.0 0.638 73.9 2147.0 0.637 73.7 2148.0 0.636 73.5 2149.0 0.635 73.3 2150.0 0.634 73.1 2151.0 0.633 72.9 2152.0 0.632 72.6 2153.0 0.632 72.4 2154.0 0.631 72.2 2155.0 0.630 72.0 2156.0 0.629 71.8 2157.0 0.628 71.6 2158.0 0.627 71.4 2159.0 0.626 71.2 2160.0 0.624 71.0 2161.0 0.623 70.8 2162.0 0.622 70.6 2163.0 0.621 70.3 2164.0 0.620 70.1 2165.0 0.619 69.9 2166.0 0.617 69.7 2167.0 0.616 69.5 2168.0 0.615 69.3 2169.0 0.614 69.0 2170.0 0.612 68.8 2171.0 0.611 68.6 2172.0 0.610 68.4 2173.0 0.608 68.2 2174.0 0.607 67.9 2175.0 0.605 67.7 2176.0 0.604 67.5 2177.0 0.602 67.3 2178.0 0.601 67.0 2179.0 0.600 66.8 2180.0 0.598 66.6 2181.0 0.596 66.3 2182.0 0.595 66.1 2183.0 0.593 65.9 2184.0 0.592 65.6 2185.0 0.590 65.4 2186.0 0.589 65.2 2187.0 0.587 64.9 2188.0 0.585 64.7 2189.0 0.584 64.4 2190.0 0.582 64.2 2191.0 0.580 64.0 2192.0 0.579 63.7 2193.0 0.577 63.5 2194.0 0.575 63.2 2195.0 0.573 63.0 2196.0 0.571 62.7 2197.0 0.570 62.5 2198.0 0.568 62.2 2199.0 0.566 61.9 2200.0 0.564 61.7 2201.0 0.562 61.4 2202.0 0.561 61.2 2203.0 0.559 60.9 2204.0 0.557 60.6 2205.0 0.555 60.4 2206.0 0.553 60.1 2207.0 0.551 59.8 2208.0 0.549 59.6 2209.0 0.547 59.3 2210.0 0.545 59.0 2211.0 0.543 58.7 2212.0 0.541 58.5 2213.0 0.539 58.2 2214.0 0.537 57.9 2215.0 0.535 57.6 2216.0 0.533 57.3 2217.0 0.531 57.0 2218.0 0.529 56.7 2219.0 0.527 56.4 2220.0 0.525 56.1 2221.0 0.523 55.8 2222.0 0.521 55.5 2223.0 0.519 55.2 2224.0 0.517 54.9 2225.0 0.514 54.6 2226.0 0.512 54.3 2227.0 0.510 54.0 2228.0 0.508 53.7 2229.0 0.506 53.3 2230.0 0.504 53.0 2231.0 0.502 52.7 2232.0 0.499 52.4 2233.0 0.497 52.0 2234.0 0.495 51.7 2235.0 0.493 51.4 2236.0 0.491 51.0 2237.0 0.489 50.7 2238.0 0.486 50.3 2239.0 0.484 50.0 2240.0 0.482 49.6 2241.0 0.480 49.3 2242.0 0.478 48.9 2243.0 0.476 48.5 2244.0 0.473 48.2 2245.0 0.471 47.8 2246.0 0.469 47.4 2247.0 0.467 47.0 2248.0 0.465 46.7 2249.0 0.462 46.3 2250.0 0.460 45.9 2251.0 0.458 45.5 2252.0 0.456 45.1 2253.0 0.454 44.7 2254.0 0.451 44.3 2255.0 0.449 43.9 2256.0 0.447 43.5 2257.0 0.445 43.1 2258.0 0.443 42.7 2259.0 0.440 42.2 2260.0 0.438 41.8 2261.0 0.436 41.4 2262.0 0.434 40.9 2263.0 0.432 40.5 2264.0 0.430 40.1 2265.0 0.427 39.6 2266.0 0.425 39.2 2267.0 0.423 38.7 2268.0 0.421 38.2 2269.0 0.419 37.8 2270.0 0.417 37.3 2271.0 0.415 36.8 2272.0 0.413 36.3 2273.0 0.411 35.8 2274.0 0.409 35.4 2275.0 0.407 34.9 2276.0 0.404 34.4 2277.0 0.402 33.9 2278.0 0.400 33.3 2279.0 0.398 32.8 2280.0 0.396 32.3 2281.0 0.394 31.8 2282.0 0.393 31.2 2283.0 0.391 30.7 2284.0 0.389 30.2 2285.0 0.387 29.6 2286.0 0.385 29.1 2287.0 0.383 28.5 2288.0 0.381 27.9 2289.0 0.379 27.4 2290.0 0.378 26.8 2291.0 0.376 26.2 2292.0 0.374 25.6 2293.0 0.372 25.0 2294.0 0.370 24.4 2295.0 0.369 23.8 2296.0 0.367 23.2 2297.0 0.365 22.6 2298.0 0.364 22.0 2299.0 0.362 21.4 2300.0 0.361 20.7 2301.0 0.359 20.1 2302.0 0.357 19.4 2303.0 0.356 18.8 2304.0 0.355 18.1