| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:58:33 |
| WDS: | STT359 | WDS ID/Discoverer |
| P: | 219.300 | Orbital period (years) |
| a: | 0.425 | Semi-major axis (arcseconds) |
| i: | 119.9 | Inclination (degrees) |
| Ω: | 10.0 | Longitude of ascending node (degrees) |
| T: | 1929.081 | Epoch of periastron passage (year) |
| e: | 0.8393 | Eccentricity |
| ω: | 197.7 | Longitude of periastron (degrees) |
| Start-Year: | 1916.0 | Year |
| End-Year: | 2134.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 183530.40+233619.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18355+2336 | WDS designation |
| Discoverer Code: | STT359 | Discover designation and components |
| ADS number: | 11479 | Aitken Double Star catalog |
| HD number: | 171745 | HD catalog number |
| Hipparcos number: | 91139 | Hipparcos catalog number |
| V1: | 6.35 | Magnitude of the primary |
| V2: | 6.62 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2006 | 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 0.756 2.9 ------------------------- 1916.0 0.165 319.9 1917.0 0.152 316.6 1918.0 0.138 312.8 1919.0 0.125 308.2 1920.0 0.113 302.5 1921.0 0.101 295.4 1922.0 0.090 286.5 1923.0 0.081 275.4 1924.0 0.074 261.9 1925.0 0.071 246.5 1926.0 0.070 230.3 1927.0 0.072 214.4 1928.0 0.072 198.9 1929.0 0.067 182.4 1930.0 0.056 160.9 1931.0 0.047 129.6 1932.0 0.051 95.0 1933.0 0.067 71.1 1934.0 0.087 57.1 1935.0 0.108 48.5 1936.0 0.129 42.7 1937.0 0.149 38.5 1938.0 0.169 35.3 1939.0 0.188 32.8 1940.0 0.207 30.7 1941.0 0.224 29.0 1942.0 0.241 27.5 1943.0 0.258 26.2 1944.0 0.274 25.1 1945.0 0.289 24.1 1946.0 0.304 23.2 1947.0 0.318 22.3 1948.0 0.332 21.6 1949.0 0.345 20.9 1950.0 0.358 20.2 1951.0 0.371 19.6 1952.0 0.383 19.1 1953.0 0.395 18.5 1954.0 0.407 18.0 1955.0 0.418 17.6 1956.0 0.429 17.1 1957.0 0.440 16.7 1958.0 0.450 16.3 1959.0 0.460 15.9 1960.0 0.470 15.5 1961.0 0.480 15.2 1962.0 0.489 14.8 1963.0 0.498 14.5 1964.0 0.507 14.2 1965.0 0.516 13.9 1966.0 0.524 13.6 1967.0 0.533 13.3 1968.0 0.541 13.0 1969.0 0.548 12.7 1970.0 0.556 12.5 1971.0 0.563 12.2 1972.0 0.571 12.0 1973.0 0.578 11.7 1974.0 0.585 11.5 1975.0 0.591 11.2 1976.0 0.598 11.0 1977.0 0.604 10.8 1978.0 0.611 10.6 1979.0 0.617 10.4 1980.0 0.623 10.2 1981.0 0.628 9.9 1982.0 0.634 9.7 1983.0 0.639 9.5 1984.0 0.645 9.3 1985.0 0.650 9.2 1986.0 0.655 9.0 1987.0 0.660 8.8 1988.0 0.664 8.6 1989.0 0.669 8.4 1990.0 0.674 8.2 1991.0 0.678 8.1 1992.0 0.682 7.9 1993.0 0.686 7.7 1994.0 0.690 7.5 1995.0 0.694 7.4 1996.0 0.698 7.2 1997.0 0.701 7.1 1998.0 0.705 6.9 1999.0 0.708 6.7 2000.0 0.711 6.6 2001.0 0.714 6.4 2002.0 0.717 6.3 2003.0 0.720 6.1 2004.0 0.723 5.9 2005.0 0.726 5.8 2006.0 0.728 5.6 2007.0 0.731 5.5 2008.0 0.733 5.3 2009.0 0.735 5.2 2010.0 0.737 5.0 2011.0 0.739 4.9 2012.0 0.741 4.7 2013.0 0.743 4.6 2014.0 0.745 4.5 2015.0 0.746 4.3 2016.0 0.748 4.2 2017.0 0.749 4.0 2018.0 0.750 3.9 2019.0 0.751 3.7 2020.0 0.752 3.6 2021.0 0.753 3.5 2022.0 0.754 3.3 2023.0 0.755 3.2 2024.0 0.756 3.0 2025.0 0.756 2.9 2026.0 0.757 2.7 2027.0 0.757 2.6 2028.0 0.757 2.5 2029.0 0.757 2.3 2030.0 0.758 2.2 2031.0 0.757 2.0 2032.0 0.757 1.9 2033.0 0.757 1.8 2034.0 0.757 1.6 2035.0 0.756 1.5 2036.0 0.756 1.3 2037.0 0.755 1.2 2038.0 0.755 1.1 2039.0 0.754 0.9 2040.0 0.753 0.8 2041.0 0.752 0.6 2042.0 0.751 0.5 2043.0 0.750 0.4 2044.0 0.748 0.2 2045.0 0.747 0.1 2046.0 0.746 359.9 2047.0 0.744 359.8 2048.0 0.742 359.6 2049.0 0.741 359.5 2050.0 0.739 359.3 2051.0 0.737 359.2 2052.0 0.735 359.0 2053.0 0.733 358.9 2054.0 0.731 358.7 2055.0 0.728 358.6 2056.0 0.726 358.4 2057.0 0.723 358.3 2058.0 0.721 358.1 2059.0 0.718 358.0 2060.0 0.715 357.8 2061.0 0.712 357.7 2062.0 0.710 357.5 2063.0 0.706 357.3 2064.0 0.703 357.2 2065.0 0.700 357.0 2066.0 0.697 356.9 2067.0 0.693 356.7 2068.0 0.690 356.5 2069.0 0.686 356.4 2070.0 0.682 356.2 2071.0 0.678 356.0 2072.0 0.674 355.8 2073.0 0.670 355.7 2074.0 0.666 355.5 2075.0 0.662 355.3 2076.0 0.657 355.1 2077.0 0.653 354.9 2078.0 0.648 354.7 2079.0 0.644 354.5 2080.0 0.639 354.3 2081.0 0.634 354.1 2082.0 0.629 353.9 2083.0 0.624 353.7 2084.0 0.619 353.5 2085.0 0.613 353.3 2086.0 0.608 353.1 2087.0 0.602 352.9 2088.0 0.597 352.7 2089.0 0.591 352.4 2090.0 0.585 352.2 2091.0 0.579 352.0 2092.0 0.573 351.7 2093.0 0.566 351.5 2094.0 0.560 351.2 2095.0 0.554 351.0 2096.0 0.547 350.7 2097.0 0.540 350.4 2098.0 0.533 350.1 2099.0 0.526 349.9 2100.0 0.519 349.6 2101.0 0.512 349.3 2102.0 0.504 348.9 2103.0 0.497 348.6 2104.0 0.489 348.3 2105.0 0.481 348.0 2106.0 0.473 347.6 2107.0 0.465 347.2 2108.0 0.457 346.9 2109.0 0.449 346.5 2110.0 0.440 346.1 2111.0 0.431 345.6 2112.0 0.423 345.2 2113.0 0.414 344.7 2114.0 0.404 344.3 2115.0 0.395 343.8 2116.0 0.385 343.2 2117.0 0.376 342.7 2118.0 0.366 342.1 2119.0 0.356 341.5 2120.0 0.346 340.8 2121.0 0.335 340.1 2122.0 0.325 339.4 2123.0 0.314 338.6 2124.0 0.303 337.7 2125.0 0.292 336.8 2126.0 0.280 335.9 2127.0 0.269 334.8 2128.0 0.257 333.6 2129.0 0.245 332.3 2130.0 0.233 330.9 2131.0 0.220 329.4 2132.0 0.207 327.6 2133.0 0.195 325.6