| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:32:47 |
| WDS: | STT170AB | WDS ID/Discoverer |
| P: | 289.200 | Orbital period (years) |
| a: | 1.366 | Semi-major axis (arcseconds) |
| i: | 109.5 | Inclination (degrees) |
| Ω: | 93.3 | Longitude of ascending node (degrees) |
| T: | 2015.270 | Epoch of periastron passage (year) |
| e: | 0.52 | Eccentricity |
| ω: | 124.7 | Longitude of periastron (degrees) |
| Start-Year: | 1881.0 | Year |
| End-Year: | 2169.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 071738.51+091731.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 07176+0918 | WDS designation |
| Discoverer Code: | STT170AB | Discover designation and components |
| ADS number: | 5958 | Aitken Double Star catalog |
| HD number: | 56515 | HD catalog number |
| Hipparcos number: | 35310 | Hipparcos catalog number |
| V1: | 7.37 | Magnitude of the primary |
| V2: | 7.67 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2018 | 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 0.703 277.8 ------------------------- 1881.0 1.419 115.4 1882.0 1.428 115.0 1883.0 1.438 114.7 1884.0 1.447 114.4 1885.0 1.456 114.1 1886.0 1.465 113.8 1887.0 1.474 113.5 1888.0 1.482 113.2 1889.0 1.491 112.9 1890.0 1.499 112.6 1891.0 1.507 112.3 1892.0 1.515 112.0 1893.0 1.523 111.7 1894.0 1.530 111.4 1895.0 1.538 111.1 1896.0 1.545 110.9 1897.0 1.552 110.6 1898.0 1.559 110.3 1899.0 1.566 110.0 1900.0 1.572 109.8 1901.0 1.578 109.5 1902.0 1.584 109.2 1903.0 1.590 109.0 1904.0 1.596 108.7 1905.0 1.601 108.5 1906.0 1.606 108.2 1907.0 1.611 107.9 1908.0 1.616 107.7 1909.0 1.621 107.4 1910.0 1.625 107.2 1911.0 1.629 106.9 1912.0 1.633 106.7 1913.0 1.637 106.4 1914.0 1.640 106.2 1915.0 1.643 105.9 1916.0 1.646 105.7 1917.0 1.649 105.5 1918.0 1.652 105.2 1919.0 1.654 105.0 1920.0 1.656 104.7 1921.0 1.657 104.5 1922.0 1.659 104.2 1923.0 1.660 104.0 1924.0 1.661 103.8 1925.0 1.661 103.5 1926.0 1.662 103.3 1927.0 1.662 103.0 1928.0 1.661 102.8 1929.0 1.661 102.6 1930.0 1.660 102.3 1931.0 1.659 102.1 1932.0 1.657 101.8 1933.0 1.655 101.6 1934.0 1.653 101.4 1935.0 1.651 101.1 1936.0 1.648 100.9 1937.0 1.645 100.6 1938.0 1.641 100.4 1939.0 1.638 100.1 1940.0 1.633 99.9 1941.0 1.629 99.6 1942.0 1.624 99.4 1943.0 1.619 99.1 1944.0 1.613 98.9 1945.0 1.607 98.6 1946.0 1.601 98.4 1947.0 1.594 98.1 1948.0 1.587 97.8 1949.0 1.579 97.6 1950.0 1.571 97.3 1951.0 1.563 97.0 1952.0 1.554 96.8 1953.0 1.544 96.5 1954.0 1.535 96.2 1955.0 1.524 95.9 1956.0 1.514 95.6 1957.0 1.502 95.4 1958.0 1.491 95.1 1959.0 1.479 94.8 1960.0 1.466 94.5 1961.0 1.453 94.1 1962.0 1.439 93.8 1963.0 1.425 93.5 1964.0 1.410 93.2 1965.0 1.395 92.8 1966.0 1.379 92.5 1967.0 1.362 92.1 1968.0 1.345 91.8 1969.0 1.328 91.4 1970.0 1.309 91.0 1971.0 1.290 90.6 1972.0 1.271 90.2 1973.0 1.250 89.8 1974.0 1.230 89.4 1975.0 1.208 88.9 1976.0 1.186 88.5 1977.0 1.163 88.0 1978.0 1.139 87.5 1979.0 1.115 87.0 1980.0 1.089 86.4 1981.0 1.063 85.9 1982.0 1.037 85.3 1983.0 1.009 84.6 1984.0 0.981 84.0 1985.0 0.952 83.2 1986.0 0.922 82.5 1987.0 0.891 81.7 1988.0 0.860 80.8 1989.0 0.827 79.9 1990.0 0.794 78.9 1991.0 0.760 77.8 1992.0 0.726 76.6 1993.0 0.691 75.3 1994.0 0.655 73.8 1995.0 0.618 72.2 1996.0 0.581 70.3 1997.0 0.543 68.2 1998.0 0.505 65.8 1999.0 0.468 63.0 2000.0 0.430 59.7 2001.0 0.393 55.8 2002.0 0.358 51.1 2003.0 0.324 45.4 2004.0 0.294 38.4 2005.0 0.267 29.9 2006.0 0.247 19.9 2007.0 0.235 8.4 2008.0 0.233 356.3 2009.0 0.240 344.3 2010.0 0.255 333.4 2011.0 0.278 324.1 2012.0 0.306 316.3 2013.0 0.337 309.8 2014.0 0.371 304.5 2015.0 0.405 300.1 2016.0 0.440 296.4 2017.0 0.474 293.2 2018.0 0.508 290.5 2019.0 0.541 288.0 2020.0 0.572 285.9 2021.0 0.601 284.0 2022.0 0.629 282.2 2023.0 0.656 280.6 2024.0 0.680 279.1 2025.0 0.703 277.8 2026.0 0.723 276.5 2027.0 0.742 275.2 2028.0 0.759 274.0 2029.0 0.774 272.9 2030.0 0.787 271.8 2031.0 0.799 270.8 2032.0 0.809 269.8 2033.0 0.818 268.8 2034.0 0.825 267.8 2035.0 0.831 266.8 2036.0 0.836 265.9 2037.0 0.839 264.9 2038.0 0.842 264.0 2039.0 0.843 263.0 2040.0 0.843 262.1 2041.0 0.842 261.2 2042.0 0.841 260.2 2043.0 0.839 259.3 2044.0 0.836 258.4 2045.0 0.832 257.4 2046.0 0.827 256.4 2047.0 0.823 255.5 2048.0 0.817 254.5 2049.0 0.811 253.5 2050.0 0.805 252.5 2051.0 0.798 251.4 2052.0 0.791 250.4 2053.0 0.783 249.3 2054.0 0.776 248.2 2055.0 0.768 247.1 2056.0 0.760 246.0 2057.0 0.751 244.8 2058.0 0.743 243.6 2059.0 0.734 242.4 2060.0 0.725 241.2 2061.0 0.717 239.9 2062.0 0.708 238.6 2063.0 0.699 237.3 2064.0 0.691 235.9 2065.0 0.682 234.5 2066.0 0.674 233.0 2067.0 0.666 231.6 2068.0 0.657 230.1 2069.0 0.649 228.5 2070.0 0.642 226.9 2071.0 0.634 225.3 2072.0 0.627 223.6 2073.0 0.620 221.9 2074.0 0.614 220.2 2075.0 0.608 218.4 2076.0 0.602 216.6 2077.0 0.597 214.8 2078.0 0.592 212.9 2079.0 0.587 211.0 2080.0 0.583 209.0 2081.0 0.580 207.1 2082.0 0.577 205.1 2083.0 0.575 203.1 2084.0 0.573 201.1 2085.0 0.572 199.1 2086.0 0.571 197.0 2087.0 0.571 195.0 2088.0 0.571 193.0 2089.0 0.572 191.0 2090.0 0.574 188.9 2091.0 0.576 186.9 2092.0 0.578 184.9 2093.0 0.582 183.0 2094.0 0.586 181.0 2095.0 0.590 179.1 2096.0 0.595 177.2 2097.0 0.600 175.4 2098.0 0.606 173.5 2099.0 0.612 171.8 2100.0 0.619 170.0 2101.0 0.626 168.3 2102.0 0.634 166.6 2103.0 0.642 165.0 2104.0 0.650 163.4 2105.0 0.659 161.9 2106.0 0.668 160.4 2107.0 0.678 158.9 2108.0 0.687 157.5 2109.0 0.697 156.1 2110.0 0.708 154.8 2111.0 0.718 153.5 2112.0 0.729 152.2 2113.0 0.740 151.0 2114.0 0.751 149.8 2115.0 0.763 148.6 2116.0 0.774 147.5 2117.0 0.786 146.4 2118.0 0.798 145.4 2119.0 0.810 144.3 2120.0 0.822 143.3 2121.0 0.834 142.4 2122.0 0.847 141.4 2123.0 0.859 140.5 2124.0 0.872 139.6 2125.0 0.884 138.8 2126.0 0.897 137.9 2127.0 0.909 137.1 2128.0 0.922 136.3 2129.0 0.935 135.6 2130.0 0.948 134.8 2131.0 0.960 134.1 2132.0 0.973 133.4 2133.0 0.986 132.7 2134.0 0.999 132.0 2135.0 1.012 131.4 2136.0 1.024 130.7 2137.0 1.037 130.1 2138.0 1.050 129.5 2139.0 1.063 128.9 2140.0 1.075 128.3 2141.0 1.088 127.8 2142.0 1.100 127.2 2143.0 1.113 126.7 2144.0 1.125 126.1 2145.0 1.138 125.6 2146.0 1.150 125.1 2147.0 1.162 124.6 2148.0 1.175 124.1 2149.0 1.187 123.7 2150.0 1.199 123.2 2151.0 1.211 122.7 2152.0 1.222 122.3 2153.0 1.234 121.8 2154.0 1.246 121.4 2155.0 1.257 121.0 2156.0 1.269 120.6 2157.0 1.280 120.2 2158.0 1.291 119.8 2159.0 1.303 119.4 2160.0 1.314 119.0 2161.0 1.325 118.6 2162.0 1.335 118.2 2163.0 1.346 117.9 2164.0 1.356 117.5 2165.0 1.367 117.1 2166.0 1.377 116.8 2167.0 1.387 116.4 2168.0 1.397 116.1