| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:53:44 |
| WDS: | STF2262AB | WDS ID/Discoverer |
| P: | 257.000 | Orbital period (years) |
| a: | 1.4 | Semi-major axis (arcseconds) |
| i: | 52.0 | Inclination (degrees) |
| Ω: | 60.0 | Longitude of ascending node (degrees) |
| T: | 1829.000 | Epoch of periastron passage (year) |
| e: | 0.77 | Eccentricity |
| ω: | 42.0 | Longitude of periastron (degrees) |
| Start-Year: | 1897.0 | Year |
| End-Year: | 2153.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 180304.91-081048.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18031-0811 | WDS designation |
| Discoverer Code: | STF2262AB | Discover designation and components |
| ADS number: | 11005 | Aitken Double Star catalog |
| HD number: | 164764 | HD catalog number |
| Hipparcos number: | 88404 | Hipparcos catalog number |
| V1: | 5.27 | Magnitude of the primary |
| V2: | 5.86 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 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 1.395 292.0 ------------------------- 1897.0 1.985 254.4 1898.0 1.995 254.7 1899.0 2.004 254.9 1900.0 2.013 255.2 1901.0 2.022 255.5 1902.0 2.030 255.7 1903.0 2.038 256.0 1904.0 2.046 256.3 1905.0 2.053 256.5 1906.0 2.060 256.8 1907.0 2.067 257.0 1908.0 2.074 257.3 1909.0 2.080 257.5 1910.0 2.086 257.8 1911.0 2.092 258.0 1912.0 2.097 258.3 1913.0 2.102 258.5 1914.0 2.107 258.8 1915.0 2.112 259.0 1916.0 2.117 259.2 1917.0 2.121 259.5 1918.0 2.125 259.7 1919.0 2.129 260.0 1920.0 2.132 260.2 1921.0 2.135 260.4 1922.0 2.138 260.7 1923.0 2.141 260.9 1924.0 2.144 261.1 1925.0 2.146 261.4 1926.0 2.148 261.6 1927.0 2.150 261.8 1928.0 2.152 262.1 1929.0 2.153 262.3 1930.0 2.154 262.5 1931.0 2.155 262.8 1932.0 2.156 263.0 1933.0 2.156 263.2 1934.0 2.157 263.5 1935.0 2.157 263.7 1936.0 2.157 263.9 1937.0 2.157 264.2 1938.0 2.156 264.4 1939.0 2.155 264.6 1940.0 2.154 264.9 1941.0 2.153 265.1 1942.0 2.152 265.3 1943.0 2.150 265.6 1944.0 2.149 265.8 1945.0 2.147 266.0 1946.0 2.144 266.3 1947.0 2.142 266.5 1948.0 2.139 266.7 1949.0 2.137 267.0 1950.0 2.134 267.2 1951.0 2.131 267.4 1952.0 2.127 267.7 1953.0 2.124 267.9 1954.0 2.120 268.2 1955.0 2.116 268.4 1956.0 2.112 268.6 1957.0 2.108 268.9 1958.0 2.103 269.1 1959.0 2.099 269.4 1960.0 2.094 269.6 1961.0 2.089 269.9 1962.0 2.083 270.1 1963.0 2.078 270.4 1964.0 2.072 270.6 1965.0 2.067 270.9 1966.0 2.061 271.1 1967.0 2.055 271.4 1968.0 2.048 271.6 1969.0 2.042 271.9 1970.0 2.035 272.1 1971.0 2.028 272.4 1972.0 2.021 272.7 1973.0 2.014 272.9 1974.0 2.006 273.2 1975.0 1.999 273.5 1976.0 1.991 273.7 1977.0 1.983 274.0 1978.0 1.975 274.3 1979.0 1.966 274.6 1980.0 1.958 274.8 1981.0 1.949 275.1 1982.0 1.940 275.4 1983.0 1.931 275.7 1984.0 1.922 276.0 1985.0 1.913 276.3 1986.0 1.903 276.6 1987.0 1.893 276.9 1988.0 1.884 277.2 1989.0 1.873 277.5 1990.0 1.863 277.8 1991.0 1.853 278.1 1992.0 1.842 278.4 1993.0 1.831 278.7 1994.0 1.820 279.1 1995.0 1.809 279.4 1996.0 1.798 279.7 1997.0 1.786 280.1 1998.0 1.775 280.4 1999.0 1.763 280.7 2000.0 1.751 281.1 2001.0 1.739 281.5 2002.0 1.726 281.8 2003.0 1.714 282.2 2004.0 1.701 282.5 2005.0 1.688 282.9 2006.0 1.675 283.3 2007.0 1.662 283.7 2008.0 1.649 284.1 2009.0 1.635 284.5 2010.0 1.621 284.9 2011.0 1.607 285.3 2012.0 1.593 285.7 2013.0 1.579 286.2 2014.0 1.564 286.6 2015.0 1.550 287.0 2016.0 1.535 287.5 2017.0 1.520 287.9 2018.0 1.505 288.4 2019.0 1.490 288.9 2020.0 1.474 289.4 2021.0 1.459 289.9 2022.0 1.443 290.4 2023.0 1.427 290.9 2024.0 1.411 291.5 2025.0 1.395 292.0 2026.0 1.378 292.6 2027.0 1.362 293.2 2028.0 1.345 293.7 2029.0 1.328 294.3 2030.0 1.311 295.0 2031.0 1.294 295.6 2032.0 1.276 296.3 2033.0 1.259 296.9 2034.0 1.241 297.6 2035.0 1.223 298.3 2036.0 1.205 299.1 2037.0 1.187 299.8 2038.0 1.169 300.6 2039.0 1.150 301.4 2040.0 1.132 302.2 2041.0 1.113 303.1 2042.0 1.094 304.0 2043.0 1.075 304.9 2044.0 1.056 305.8 2045.0 1.037 306.8 2046.0 1.018 307.8 2047.0 0.999 308.9 2048.0 0.979 310.0 2049.0 0.960 311.1 2050.0 0.940 312.3 2051.0 0.921 313.6 2052.0 0.901 314.9 2053.0 0.882 316.2 2054.0 0.862 317.7 2055.0 0.842 319.1 2056.0 0.823 320.7 2057.0 0.803 322.3 2058.0 0.784 324.0 2059.0 0.764 325.8 2060.0 0.745 327.7 2061.0 0.726 329.7 2062.0 0.707 331.8 2063.0 0.689 334.0 2064.0 0.671 336.4 2065.0 0.653 338.8 2066.0 0.635 341.4 2067.0 0.618 344.2 2068.0 0.601 347.1 2069.0 0.585 350.2 2070.0 0.569 353.4 2071.0 0.554 356.8 2072.0 0.539 0.5 2073.0 0.525 4.3 2074.0 0.511 8.3 2075.0 0.498 12.5 2076.0 0.485 17.0 2077.0 0.472 21.7 2078.0 0.459 26.7 2079.0 0.446 32.0 2080.0 0.431 37.6 2081.0 0.414 43.6 2082.0 0.394 50.2 2083.0 0.371 57.6 2084.0 0.342 66.0 2085.0 0.309 76.2 2086.0 0.274 89.0 2087.0 0.243 105.3 2088.0 0.225 125.4 2089.0 0.229 146.7 2090.0 0.254 165.5 2091.0 0.295 180.0 2092.0 0.344 190.6 2093.0 0.397 198.5 2094.0 0.451 204.6 2095.0 0.504 209.3 2096.0 0.557 213.1 2097.0 0.609 216.3 2098.0 0.658 219.0 2099.0 0.707 221.3 2100.0 0.753 223.4 2101.0 0.798 225.1 2102.0 0.842 226.7 2103.0 0.884 228.2 2104.0 0.925 229.5 2105.0 0.964 230.7 2106.0 1.002 231.8 2107.0 1.039 232.9 2108.0 1.075 233.8 2109.0 1.110 234.7 2110.0 1.143 235.6 2111.0 1.176 236.4 2112.0 1.208 237.2 2113.0 1.238 237.9 2114.0 1.268 238.6 2115.0 1.297 239.2 2116.0 1.325 239.8 2117.0 1.353 240.5 2118.0 1.380 241.0 2119.0 1.406 241.6 2120.0 1.431 242.1 2121.0 1.455 242.6 2122.0 1.479 243.1 2123.0 1.503 243.6 2124.0 1.525 244.1 2125.0 1.547 244.6 2126.0 1.569 245.0 2127.0 1.590 245.4 2128.0 1.610 245.8 2129.0 1.630 246.3 2130.0 1.649 246.7 2131.0 1.668 247.1 2132.0 1.687 247.4 2133.0 1.705 247.8 2134.0 1.722 248.2 2135.0 1.739 248.5 2136.0 1.755 248.9 2137.0 1.771 249.2 2138.0 1.787 249.6 2139.0 1.802 249.9 2140.0 1.817 250.2 2141.0 1.832 250.6 2142.0 1.846 250.9 2143.0 1.859 251.2 2144.0 1.872 251.5 2145.0 1.885 251.8 2146.0 1.898 252.1 2147.0 1.910 252.4 2148.0 1.922 252.7 2149.0 1.933 253.0 2150.0 1.944 253.3 2151.0 1.955 253.6 2152.0 1.966 253.9