| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:55:43 |
| WDS: | HDO284AB | WDS ID/Discoverer |
| P: | 324.800 | Orbital period (years) |
| a: | 1.522 | Semi-major axis (arcseconds) |
| i: | 15.9 | Inclination (degrees) |
| Ω: | 62.6 | Longitude of ascending node (degrees) |
| T: | 2110.090 | Epoch of periastron passage (year) |
| e: | 0.628 | Eccentricity |
| ω: | 5.0 | Longitude of periastron (degrees) |
| Start-Year: | 1863.0 | Year |
| End-Year: | 2187.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 181234.05-734020.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18126-7340 | WDS designation |
| Discoverer Code: | HDO284AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 165259 | HD catalog number |
| Hipparcos number: | 89234 | Hipparcos catalog number |
| V1: | 5.96 | Magnitude of the primary |
| V2: | 9.14 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 5 | 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 2.034 275.0 ------------------------- 1863.0 1.954 216.4 1864.0 1.967 216.9 1865.0 1.980 217.4 1866.0 1.993 217.9 1867.0 2.005 218.4 1868.0 2.017 218.8 1869.0 2.029 219.3 1870.0 2.041 219.8 1871.0 2.053 220.2 1872.0 2.064 220.7 1873.0 2.076 221.1 1874.0 2.087 221.6 1875.0 2.098 222.0 1876.0 2.109 222.4 1877.0 2.119 222.9 1878.0 2.130 223.3 1879.0 2.140 223.7 1880.0 2.150 224.1 1881.0 2.160 224.6 1882.0 2.170 225.0 1883.0 2.180 225.4 1884.0 2.189 225.8 1885.0 2.199 226.2 1886.0 2.208 226.6 1887.0 2.217 227.0 1888.0 2.225 227.4 1889.0 2.234 227.7 1890.0 2.243 228.1 1891.0 2.251 228.5 1892.0 2.259 228.9 1893.0 2.267 229.3 1894.0 2.275 229.6 1895.0 2.283 230.0 1896.0 2.290 230.4 1897.0 2.298 230.7 1898.0 2.305 231.1 1899.0 2.312 231.5 1900.0 2.319 231.8 1901.0 2.326 232.2 1902.0 2.332 232.5 1903.0 2.339 232.9 1904.0 2.345 233.2 1905.0 2.351 233.6 1906.0 2.357 233.9 1907.0 2.363 234.3 1908.0 2.369 234.6 1909.0 2.374 235.0 1910.0 2.380 235.3 1911.0 2.385 235.6 1912.0 2.390 236.0 1913.0 2.395 236.3 1914.0 2.400 236.6 1915.0 2.404 237.0 1916.0 2.409 237.3 1917.0 2.413 237.6 1918.0 2.417 238.0 1919.0 2.421 238.3 1920.0 2.425 238.6 1921.0 2.429 238.9 1922.0 2.433 239.3 1923.0 2.436 239.6 1924.0 2.440 239.9 1925.0 2.443 240.2 1926.0 2.446 240.6 1927.0 2.449 240.9 1928.0 2.452 241.2 1929.0 2.454 241.5 1930.0 2.457 241.8 1931.0 2.459 242.2 1932.0 2.461 242.5 1933.0 2.463 242.8 1934.0 2.465 243.1 1935.0 2.467 243.4 1936.0 2.469 243.7 1937.0 2.470 244.1 1938.0 2.471 244.4 1939.0 2.473 244.7 1940.0 2.474 245.0 1941.0 2.475 245.3 1942.0 2.475 245.6 1943.0 2.476 245.9 1944.0 2.476 246.3 1945.0 2.477 246.6 1946.0 2.477 246.9 1947.0 2.477 247.2 1948.0 2.477 247.5 1949.0 2.477 247.8 1950.0 2.477 248.1 1951.0 2.476 248.4 1952.0 2.475 248.8 1953.0 2.475 249.1 1954.0 2.474 249.4 1955.0 2.473 249.7 1956.0 2.471 250.0 1957.0 2.470 250.3 1958.0 2.469 250.6 1959.0 2.467 251.0 1960.0 2.465 251.3 1961.0 2.463 251.6 1962.0 2.461 251.9 1963.0 2.459 252.2 1964.0 2.457 252.5 1965.0 2.454 252.9 1966.0 2.452 253.2 1967.0 2.449 253.5 1968.0 2.446 253.8 1969.0 2.443 254.1 1970.0 2.440 254.5 1971.0 2.437 254.8 1972.0 2.433 255.1 1973.0 2.430 255.4 1974.0 2.426 255.8 1975.0 2.422 256.1 1976.0 2.418 256.4 1977.0 2.414 256.8 1978.0 2.409 257.1 1979.0 2.405 257.4 1980.0 2.400 257.7 1981.0 2.395 258.1 1982.0 2.391 258.4 1983.0 2.386 258.8 1984.0 2.380 259.1 1985.0 2.375 259.4 1986.0 2.369 259.8 1987.0 2.364 260.1 1988.0 2.358 260.5 1989.0 2.352 260.8 1990.0 2.346 261.2 1991.0 2.340 261.5 1992.0 2.333 261.9 1993.0 2.327 262.2 1994.0 2.320 262.6 1995.0 2.313 262.9 1996.0 2.306 263.3 1997.0 2.299 263.6 1998.0 2.292 264.0 1999.0 2.284 264.4 2000.0 2.277 264.8 2001.0 2.269 265.1 2002.0 2.261 265.5 2003.0 2.253 265.9 2004.0 2.245 266.3 2005.0 2.236 266.6 2006.0 2.228 267.0 2007.0 2.219 267.4 2008.0 2.210 267.8 2009.0 2.201 268.2 2010.0 2.192 268.6 2011.0 2.183 269.0 2012.0 2.173 269.4 2013.0 2.163 269.8 2014.0 2.154 270.2 2015.0 2.144 270.6 2016.0 2.133 271.1 2017.0 2.123 271.5 2018.0 2.113 271.9 2019.0 2.102 272.3 2020.0 2.091 272.8 2021.0 2.080 273.2 2022.0 2.069 273.7 2023.0 2.058 274.1 2024.0 2.046 274.6 2025.0 2.034 275.0 2026.0 2.022 275.5 2027.0 2.010 276.0 2028.0 1.998 276.5 2029.0 1.986 276.9 2030.0 1.973 277.4 2031.0 1.960 277.9 2032.0 1.947 278.4 2033.0 1.934 278.9 2034.0 1.921 279.5 2035.0 1.908 280.0 2036.0 1.894 280.5 2037.0 1.880 281.1 2038.0 1.866 281.6 2039.0 1.852 282.2 2040.0 1.837 282.7 2041.0 1.823 283.3 2042.0 1.808 283.9 2043.0 1.793 284.5 2044.0 1.778 285.1 2045.0 1.762 285.7 2046.0 1.747 286.3 2047.0 1.731 287.0 2048.0 1.715 287.6 2049.0 1.699 288.3 2050.0 1.682 288.9 2051.0 1.666 289.6 2052.0 1.649 290.3 2053.0 1.632 291.0 2054.0 1.615 291.8 2055.0 1.598 292.5 2056.0 1.580 293.3 2057.0 1.562 294.0 2058.0 1.544 294.8 2059.0 1.526 295.7 2060.0 1.507 296.5 2061.0 1.489 297.3 2062.0 1.470 298.2 2063.0 1.451 299.1 2064.0 1.432 300.1 2065.0 1.412 301.0 2066.0 1.392 302.0 2067.0 1.373 303.0 2068.0 1.352 304.0 2069.0 1.332 305.1 2070.0 1.312 306.2 2071.0 1.291 307.3 2072.0 1.270 308.5 2073.0 1.249 309.7 2074.0 1.228 311.0 2075.0 1.206 312.3 2076.0 1.185 313.6 2077.0 1.163 315.0 2078.0 1.141 316.4 2079.0 1.119 318.0 2080.0 1.096 319.5 2081.0 1.074 321.1 2082.0 1.051 322.9 2083.0 1.029 324.6 2084.0 1.006 326.5 2085.0 0.983 328.4 2086.0 0.961 330.5 2087.0 0.938 332.6 2088.0 0.915 334.8 2089.0 0.892 337.2 2090.0 0.870 339.7 2091.0 0.847 342.3 2092.0 0.825 345.0 2093.0 0.803 347.9 2094.0 0.782 351.0 2095.0 0.761 354.2 2096.0 0.740 357.6 2097.0 0.720 1.2 2098.0 0.700 5.0 2099.0 0.682 9.1 2100.0 0.664 13.3 2101.0 0.647 17.8 2102.0 0.632 22.5 2103.0 0.618 27.4 2104.0 0.605 32.5 2105.0 0.594 37.9 2106.0 0.585 43.4 2107.0 0.577 49.1 2108.0 0.571 55.0 2109.0 0.568 60.9 2110.0 0.566 66.9 2111.0 0.567 72.9 2112.0 0.569 78.8 2113.0 0.574 84.7 2114.0 0.580 90.5 2115.0 0.589 96.1 2116.0 0.599 101.6 2117.0 0.611 106.8 2118.0 0.625 111.8 2119.0 0.640 116.6 2120.0 0.657 121.2 2121.0 0.674 125.6 2122.0 0.693 129.7 2123.0 0.713 133.6 2124.0 0.733 137.2 2125.0 0.754 140.7 2126.0 0.775 144.0 2127.0 0.797 147.1 2128.0 0.820 150.1 2129.0 0.842 152.8 2130.0 0.865 155.5 2131.0 0.888 158.0 2132.0 0.912 160.3 2133.0 0.935 162.6 2134.0 0.958 164.7 2135.0 0.981 166.8 2136.0 1.005 168.7 2137.0 1.028 170.6 2138.0 1.051 172.4 2139.0 1.074 174.1 2140.0 1.097 175.7 2141.0 1.119 177.3 2142.0 1.142 178.8 2143.0 1.164 180.2 2144.0 1.187 181.6 2145.0 1.209 183.0 2146.0 1.230 184.3 2147.0 1.252 185.5 2148.0 1.274 186.7 2149.0 1.295 187.9 2150.0 1.316 189.0 2151.0 1.337 190.1 2152.0 1.357 191.1 2153.0 1.378 192.2 2154.0 1.398 193.2 2155.0 1.418 194.1 2156.0 1.437 195.1 2157.0 1.457 196.0 2158.0 1.476 196.9 2159.0 1.495 197.8 2160.0 1.514 198.6 2161.0 1.533 199.4 2162.0 1.551 200.3 2163.0 1.569 201.0 2164.0 1.587 201.8 2165.0 1.605 202.6 2166.0 1.623 203.3 2167.0 1.640 204.0 2168.0 1.657 204.7 2169.0 1.674 205.4 2170.0 1.691 206.1 2171.0 1.707 206.8 2172.0 1.724 207.4 2173.0 1.740 208.1 2174.0 1.756 208.7 2175.0 1.771 209.3 2176.0 1.787 209.9 2177.0 1.802 210.5 2178.0 1.817 211.1 2179.0 1.832 211.7 2180.0 1.847 212.3 2181.0 1.861 212.8 2182.0 1.875 213.4 2183.0 1.889 213.9 2184.0 1.903 214.4 2185.0 1.917 215.0 2186.0 1.930 215.5