| WDS: | STF2281AB | WDS ID/Discoverer |
| P: | 294.000 | Orbital period (years) |
| a: | 1.19 | Semi-major axis (arcseconds) |
| i: | 103.0 | Inclination (degrees) |
| Ω: | 71.0 | Longitude of ascending node (degrees) |
| T: | 1912.800 | Epoch of periastron passage (year) |
| e: | 0.61 | Eccentricity |
| ω: | 307.0 | Longitude of periastron (degrees) |
| Start-Year: | 1878.0 | Year |
| End-Year: | 2172.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF2281AB |
||
| Position: | 180933.86+035935.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18096+0400 | WDS designation |
| Discoverer Code: | STF2281AB | Discover designation and components |
| ADS number: | 11111 | Aitken Double Star catalog |
| HD number: | 166233 | HD catalog number |
| Hipparcos number: | 88964 | Hipparcos catalog number |
| V1: | 5.97 | Magnitude of the primary |
| V2: | 7.52 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | Date of last observation | |
| Orbit grade: | 3 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Sod1999 | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 0.846 277.57 -------------------------- 1878.00 1.005 248.53 1879.00 0.983 248.22 1880.00 0.960 247.89 1881.00 0.937 247.55 1882.00 0.913 247.19 1883.00 0.888 246.80 1884.00 0.863 246.40 1885.00 0.836 245.97 1886.00 0.809 245.52 1887.00 0.781 245.03 1888.00 0.752 244.50 1889.00 0.722 243.93 1890.00 0.691 243.31 1891.00 0.659 242.63 1892.00 0.626 241.88 1893.00 0.592 241.05 1894.00 0.557 240.11 1895.00 0.522 239.05 1896.00 0.485 237.83 1897.00 0.447 236.40 1898.00 0.409 234.71 1899.00 0.369 232.66 1900.00 0.329 230.12 1901.00 0.289 226.88 1902.00 0.249 222.59 1903.00 0.210 216.68 1904.00 0.173 208.16 1905.00 0.141 195.44 1906.00 0.119 176.76 1907.00 0.113 153.21 1908.00 0.126 130.97 1909.00 0.152 114.62 1910.00 0.186 103.64 1911.00 0.223 96.18 1912.00 0.261 90.87 1913.00 0.299 86.91 1914.00 0.336 83.83 1915.00 0.370 81.35 1916.00 0.403 79.28 1917.00 0.433 77.51 1918.00 0.461 75.97 1919.00 0.486 74.59 1920.00 0.508 73.34 1921.00 0.528 72.18 1922.00 0.545 71.11 1923.00 0.560 70.10 1924.00 0.572 69.13 1925.00 0.582 68.21 1926.00 0.591 67.31 1927.00 0.597 66.43 1928.00 0.602 65.57 1929.00 0.605 64.72 1930.00 0.607 63.88 1931.00 0.608 63.05 1932.00 0.607 62.21 1933.00 0.605 61.37 1934.00 0.603 60.52 1935.00 0.599 59.66 1936.00 0.594 58.79 1937.00 0.589 57.91 1938.00 0.584 57.01 1939.00 0.577 56.10 1940.00 0.570 55.16 1941.00 0.563 54.19 1942.00 0.555 53.20 1943.00 0.547 52.18 1944.00 0.538 51.13 1945.00 0.529 50.05 1946.00 0.520 48.92 1947.00 0.511 47.76 1948.00 0.501 46.55 1949.00 0.492 45.30 1950.00 0.482 44.00 1951.00 0.472 42.64 1952.00 0.463 41.22 1953.00 0.453 39.75 1954.00 0.443 38.21 1955.00 0.434 36.60 1956.00 0.424 34.92 1957.00 0.415 33.16 1958.00 0.406 31.33 1959.00 0.397 29.41 1960.00 0.389 27.41 1961.00 0.381 25.32 1962.00 0.373 23.14 1963.00 0.365 20.87 1964.00 0.359 18.51 1965.00 0.352 16.06 1966.00 0.346 13.53 1967.00 0.341 10.91 1968.00 0.336 8.21 1969.00 0.332 5.45 1970.00 0.329 2.62 1971.00 0.326 359.74 1972.00 0.325 356.82 1973.00 0.323 353.88 1974.00 0.323 350.92 1975.00 0.324 347.96 1976.00 0.325 345.02 1977.00 0.327 342.11 1978.00 0.330 339.24 1979.00 0.333 336.42 1980.00 0.337 333.66 1981.00 0.342 330.98 1982.00 0.348 328.38 1983.00 0.354 325.87 1984.00 0.360 323.44 1985.00 0.368 321.11 1986.00 0.375 318.87 1987.00 0.384 316.72 1988.00 0.392 314.66 1989.00 0.401 312.70 1990.00 0.411 310.83 1991.00 0.421 309.04 1992.00 0.431 307.33 1993.00 0.441 305.70 1994.00 0.452 304.15 1995.00 0.463 302.67 1996.00 0.474 301.26 1997.00 0.485 299.91 1998.00 0.496 298.63 1999.00 0.508 297.40 2000.00 0.520 296.23 2001.00 0.532 295.11 2002.00 0.544 294.04 2003.00 0.556 293.02 2004.00 0.568 292.04 2005.00 0.580 291.10 2006.00 0.592 290.20 2007.00 0.605 289.34 2008.00 0.617 288.51 2009.00 0.630 287.72 2010.00 0.642 286.95 2011.00 0.654 286.22 2012.00 0.667 285.51 2013.00 0.679 284.83 2014.00 0.692 284.17 2015.00 0.704 283.53 2016.00 0.717 282.92 2017.00 0.729 282.33 2018.00 0.742 281.76 2019.00 0.754 281.21 2020.00 0.766 280.67 2021.00 0.779 280.15 2022.00 0.791 279.65 2023.00 0.803 279.17 2024.00 0.816 278.69 2025.00 0.828 278.24 2026.00 0.840 277.79 2027.00 0.852 277.36 2028.00 0.864 276.94 2029.00 0.876 276.53 2030.00 0.888 276.13 2031.00 0.899 275.75 2032.00 0.911 275.37 2033.00 0.923 275.00 2034.00 0.935 274.64 2035.00 0.946 274.29 2036.00 0.958 273.95 2037.00 0.969 273.62 2038.00 0.980 273.29 2039.00 0.991 272.98 2040.00 1.003 272.66 2041.00 1.014 272.36 2042.00 1.025 272.06 2043.00 1.035 271.77 2044.00 1.046 271.49 2045.00 1.057 271.21 2046.00 1.067 270.93 2047.00 1.078 270.66 2048.00 1.088 270.40 2049.00 1.099 270.14 2050.00 1.109 269.89 2051.00 1.119 269.64 2052.00 1.129 269.39 2053.00 1.139 269.15 2054.00 1.149 268.92 2055.00 1.158 268.69 2056.00 1.168 268.46 2057.00 1.177 268.23 2058.00 1.187 268.01 2059.00 1.196 267.79 2060.00 1.205 267.58 2061.00 1.214 267.37 2062.00 1.223 267.16 2063.00 1.232 266.95 2064.00 1.240 266.75 2065.00 1.249 266.55 2066.00 1.257 266.36 2067.00 1.266 266.16 2068.00 1.274 265.97 2069.00 1.282 265.78 2070.00 1.290 265.59 2071.00 1.298 265.41 2072.00 1.305 265.23 2073.00 1.313 265.05 2074.00 1.320 264.87 2075.00 1.327 264.69 2076.00 1.335 264.52 2077.00 1.342 264.34 2078.00 1.348 264.17 2079.00 1.355 264.00 2080.00 1.362 263.84 2081.00 1.368 263.67 2082.00 1.374 263.51 2083.00 1.380 263.34 2084.00 1.386 263.18 2085.00 1.392 263.02 2086.00 1.398 262.86 2087.00 1.403 262.71 2088.00 1.409 262.55 2089.00 1.414 262.39 2090.00 1.419 262.24 2091.00 1.424 262.09 2092.00 1.429 261.94 2093.00 1.433 261.78 2094.00 1.438 261.63 2095.00 1.442 261.48 2096.00 1.446 261.34 2097.00 1.450 261.19 2098.00 1.453 261.04 2099.00 1.457 260.90 2100.00 1.460 260.75 2101.00 1.464 260.61 2102.00 1.467 260.46 2103.00 1.469 260.32 2104.00 1.472 260.18 2105.00 1.474 260.03 2106.00 1.477 259.89 2107.00 1.479 259.75 2108.00 1.481 259.61 2109.00 1.482 259.47 2110.00 1.484 259.33 2111.00 1.485 259.19 2112.00 1.486 259.05 2113.00 1.487 258.91 2114.00 1.488 258.77 2115.00 1.488 258.63 2116.00 1.488 258.49 2117.00 1.488 258.35 2118.00 1.488 258.21 2119.00 1.487 258.07 2120.00 1.487 257.93 2121.00 1.486 257.79 2122.00 1.485 257.65 2123.00 1.483 257.51 2124.00 1.481 257.37 2125.00 1.480 257.23 2126.00 1.477 257.09 2127.00 1.475 256.94 2128.00 1.472 256.80 2129.00 1.469 256.66 2130.00 1.466 256.52 2131.00 1.463 256.37 2132.00 1.459 256.23 2133.00 1.455 256.08 2134.00 1.451 255.94 2135.00 1.446 255.79 2136.00 1.441 255.64 2137.00 1.436 255.49 2138.00 1.430 255.34 2139.00 1.424 255.19 2140.00 1.418 255.03 2141.00 1.412 254.88 2142.00 1.405 254.72 2143.00 1.398 254.57 2144.00 1.390 254.41 2145.00 1.383 254.25 2146.00 1.374 254.08 2147.00 1.366 253.92 2148.00 1.357 253.75 2149.00 1.347 253.58 2150.00 1.338 253.41 2151.00 1.328 253.24 2152.00 1.317 253.06 2153.00 1.306 252.88 2154.00 1.295 252.70 2155.00 1.283 252.51 2156.00 1.271 252.32 2157.00 1.258 252.13 2158.00 1.245 251.93 2159.00 1.231 251.73 2160.00 1.217 251.53 2161.00 1.203 251.31 2162.00 1.188 251.10 2163.00 1.172 250.88 2164.00 1.156 250.65 2165.00 1.139 250.41 2166.00 1.122 250.17 2167.00 1.104 249.92 2168.00 1.085 249.66 2169.00 1.066 249.40 2170.00 1.046 249.12 2171.00 1.026 248.83
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:48:25 |