| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:43:36 |
| WDS: | I407 | WDS ID/Discoverer |
| P: | 292.320 | Orbital period (years) |
| a: | 0.574 | Semi-major axis (arcseconds) |
| i: | 101.4 | Inclination (degrees) |
| Ω: | 180.7 | Longitude of ascending node (degrees) |
| T: | 1979.860 | Epoch of periastron passage (year) |
| e: | 0.772 | Eccentricity |
| ω: | 135.6 | Longitude of periastron (degrees) |
| Start-Year: | 1879.0 | Year |
| End-Year: | 2171.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 170805.63-413652.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17081-4137 | WDS designation |
| Discoverer Code: | I407 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 154569 | HD catalog number |
| Hipparcos number: | 83845 | Hipparcos catalog number |
| V1: | 8.28 | Magnitude of the primary |
| V2: | 7.50 | 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 0.181 224.4 ------------------------- 1879.0 0.806 187.9 1880.0 0.806 187.8 1881.0 0.806 187.7 1882.0 0.805 187.7 1883.0 0.805 187.6 1884.0 0.804 187.5 1885.0 0.803 187.4 1886.0 0.803 187.3 1887.0 0.802 187.3 1888.0 0.801 187.2 1889.0 0.800 187.1 1890.0 0.799 187.0 1891.0 0.798 186.9 1892.0 0.797 186.9 1893.0 0.795 186.8 1894.0 0.794 186.7 1895.0 0.792 186.6 1896.0 0.791 186.5 1897.0 0.789 186.5 1898.0 0.787 186.4 1899.0 0.785 186.3 1900.0 0.783 186.2 1901.0 0.781 186.1 1902.0 0.779 186.0 1903.0 0.776 186.0 1904.0 0.774 185.9 1905.0 0.771 185.8 1906.0 0.769 185.7 1907.0 0.766 185.6 1908.0 0.763 185.5 1909.0 0.760 185.4 1910.0 0.757 185.4 1911.0 0.754 185.3 1912.0 0.750 185.2 1913.0 0.747 185.1 1914.0 0.743 185.0 1915.0 0.739 184.9 1916.0 0.735 184.8 1917.0 0.731 184.7 1918.0 0.727 184.6 1919.0 0.723 184.5 1920.0 0.719 184.4 1921.0 0.714 184.3 1922.0 0.709 184.2 1923.0 0.704 184.1 1924.0 0.699 184.0 1925.0 0.694 183.9 1926.0 0.689 183.8 1927.0 0.683 183.7 1928.0 0.678 183.6 1929.0 0.672 183.5 1930.0 0.666 183.4 1931.0 0.660 183.2 1932.0 0.653 183.1 1933.0 0.647 183.0 1934.0 0.640 182.9 1935.0 0.633 182.8 1936.0 0.626 182.6 1937.0 0.618 182.5 1938.0 0.611 182.4 1939.0 0.603 182.2 1940.0 0.595 182.1 1941.0 0.587 181.9 1942.0 0.578 181.8 1943.0 0.569 181.6 1944.0 0.560 181.5 1945.0 0.551 181.3 1946.0 0.541 181.1 1947.0 0.531 181.0 1948.0 0.521 180.8 1949.0 0.511 180.6 1950.0 0.500 180.4 1951.0 0.489 180.2 1952.0 0.477 180.0 1953.0 0.465 179.7 1954.0 0.453 179.5 1955.0 0.440 179.2 1956.0 0.427 179.0 1957.0 0.413 178.7 1958.0 0.399 178.4 1959.0 0.385 178.0 1960.0 0.369 177.7 1961.0 0.354 177.3 1962.0 0.337 176.9 1963.0 0.321 176.4 1964.0 0.303 175.9 1965.0 0.285 175.3 1966.0 0.266 174.6 1967.0 0.246 173.8 1968.0 0.225 172.9 1969.0 0.203 171.8 1970.0 0.181 170.4 1971.0 0.157 168.6 1972.0 0.132 166.1 1973.0 0.107 162.5 1974.0 0.081 156.7 1975.0 0.055 145.3 1976.0 0.035 117.7 1977.0 0.032 64.4 1978.0 0.051 31.3 1979.0 0.075 17.8 1980.0 0.098 10.9 1981.0 0.119 6.6 1982.0 0.136 3.4 1983.0 0.149 0.9 1984.0 0.158 358.7 1985.0 0.163 356.8 1986.0 0.167 354.9 1987.0 0.168 353.1 1988.0 0.167 351.3 1989.0 0.166 349.4 1990.0 0.163 347.5 1991.0 0.159 345.6 1992.0 0.155 343.5 1993.0 0.151 341.3 1994.0 0.146 339.0 1995.0 0.141 336.5 1996.0 0.136 333.9 1997.0 0.130 331.0 1998.0 0.125 327.9 1999.0 0.120 324.5 2000.0 0.116 320.8 2001.0 0.111 316.9 2002.0 0.107 312.6 2003.0 0.104 308.0 2004.0 0.101 303.2 2005.0 0.099 298.1 2006.0 0.098 292.8 2007.0 0.097 287.4 2008.0 0.097 282.0 2009.0 0.098 276.6 2010.0 0.099 271.3 2011.0 0.102 266.3 2012.0 0.105 261.5 2013.0 0.109 257.0 2014.0 0.113 252.9 2015.0 0.118 249.0 2016.0 0.123 245.5 2017.0 0.128 242.2 2018.0 0.134 239.3 2019.0 0.140 236.6 2020.0 0.147 234.1 2021.0 0.153 231.8 2022.0 0.160 229.7 2023.0 0.167 227.8 2024.0 0.174 226.1 2025.0 0.181 224.4 2026.0 0.188 222.9 2027.0 0.195 221.5 2028.0 0.202 220.2 2029.0 0.209 219.0 2030.0 0.217 217.9 2031.0 0.224 216.9 2032.0 0.231 215.9 2033.0 0.239 215.0 2034.0 0.246 214.1 2035.0 0.253 213.3 2036.0 0.261 212.5 2037.0 0.268 211.8 2038.0 0.275 211.1 2039.0 0.283 210.4 2040.0 0.290 209.8 2041.0 0.297 209.2 2042.0 0.304 208.6 2043.0 0.311 208.1 2044.0 0.318 207.6 2045.0 0.326 207.1 2046.0 0.333 206.6 2047.0 0.340 206.2 2048.0 0.347 205.7 2049.0 0.354 205.3 2050.0 0.360 204.9 2051.0 0.367 204.5 2052.0 0.374 204.2 2053.0 0.381 203.8 2054.0 0.388 203.5 2055.0 0.394 203.1 2056.0 0.401 202.8 2057.0 0.408 202.5 2058.0 0.414 202.2 2059.0 0.421 201.9 2060.0 0.427 201.6 2061.0 0.434 201.4 2062.0 0.440 201.1 2063.0 0.446 200.8 2064.0 0.452 200.6 2065.0 0.459 200.3 2066.0 0.465 200.1 2067.0 0.471 199.9 2068.0 0.477 199.6 2069.0 0.483 199.4 2070.0 0.489 199.2 2071.0 0.495 199.0 2072.0 0.501 198.8 2073.0 0.507 198.6 2074.0 0.513 198.4 2075.0 0.518 198.2 2076.0 0.524 198.0 2077.0 0.530 197.8 2078.0 0.535 197.6 2079.0 0.541 197.5 2080.0 0.546 197.3 2081.0 0.552 197.1 2082.0 0.557 197.0 2083.0 0.562 196.8 2084.0 0.568 196.6 2085.0 0.573 196.5 2086.0 0.578 196.3 2087.0 0.583 196.2 2088.0 0.588 196.0 2089.0 0.593 195.9 2090.0 0.598 195.7 2091.0 0.603 195.6 2092.0 0.608 195.4 2093.0 0.613 195.3 2094.0 0.617 195.2 2095.0 0.622 195.0 2096.0 0.627 194.9 2097.0 0.631 194.8 2098.0 0.636 194.7 2099.0 0.640 194.5 2100.0 0.645 194.4 2101.0 0.649 194.3 2102.0 0.653 194.2 2103.0 0.658 194.0 2104.0 0.662 193.9 2105.0 0.666 193.8 2106.0 0.670 193.7 2107.0 0.674 193.6 2108.0 0.678 193.5 2109.0 0.682 193.4 2110.0 0.686 193.3 2111.0 0.690 193.1 2112.0 0.694 193.0 2113.0 0.697 192.9 2114.0 0.701 192.8 2115.0 0.704 192.7 2116.0 0.708 192.6 2117.0 0.711 192.5 2118.0 0.715 192.4 2119.0 0.718 192.3 2120.0 0.722 192.2 2121.0 0.725 192.1 2122.0 0.728 192.0 2123.0 0.731 191.9 2124.0 0.734 191.8 2125.0 0.737 191.8 2126.0 0.740 191.7 2127.0 0.743 191.6 2128.0 0.746 191.5 2129.0 0.749 191.4 2130.0 0.751 191.3 2131.0 0.754 191.2 2132.0 0.757 191.1 2133.0 0.759 191.0 2134.0 0.762 190.9 2135.0 0.764 190.8 2136.0 0.766 190.8 2137.0 0.769 190.7 2138.0 0.771 190.6 2139.0 0.773 190.5 2140.0 0.775 190.4 2141.0 0.777 190.3 2142.0 0.779 190.2 2143.0 0.781 190.2 2144.0 0.783 190.1 2145.0 0.785 190.0 2146.0 0.786 189.9 2147.0 0.788 189.8 2148.0 0.789 189.7 2149.0 0.791 189.7 2150.0 0.792 189.6 2151.0 0.794 189.5 2152.0 0.795 189.4 2153.0 0.796 189.3 2154.0 0.797 189.3 2155.0 0.799 189.2 2156.0 0.800 189.1 2157.0 0.801 189.0 2158.0 0.801 188.9 2159.0 0.802 188.9 2160.0 0.803 188.8 2161.0 0.804 188.7 2162.0 0.804 188.6 2163.0 0.805 188.6 2164.0 0.805 188.5 2165.0 0.806 188.4 2166.0 0.806 188.3 2167.0 0.806 188.2 2168.0 0.806 188.2 2169.0 0.806 188.1 2170.0 0.806 188.0