| WDS: | STF400AB | WDS ID/Discoverer |
| P: | 267.100 | Orbital period (years) |
| a: | 1.112 | Semi-major axis (arcseconds) |
| i: | 68.1 | Inclination (degrees) |
| Ω: | 82.7 | Longitude of ascending node (degrees) |
| T: | 1939.070 | Epoch of periastron passage (year) |
| e: | 0.697 | Eccentricity |
| ω: | 34.6 | Longitude of periastron (degrees) |
| Start-Year: | 1891.45 | Year |
| End-Year: | 2158.55 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF400AB |
||
| Position: | 033501.04+600229.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 03350+6002 | WDS designation |
| Discoverer Code: | STF400AB | Discover designation and components |
| ADS number: | 2612 | Aitken Double Star catalog |
| HD number: | 21903 | HD catalog number |
| Hipparcos number: | 16712 | Hipparcos catalog number |
| V1: | 6.79 | Magnitude of the primary |
| V2: | 7.97 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | 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: | Rbr2018 | 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 1.651 269.68 -------------------------- 1891.45 0.609 311.15 1892.45 0.593 312.38 1893.45 0.577 313.68 1894.45 0.561 315.06 1895.45 0.546 316.51 1896.45 0.530 318.05 1897.45 0.515 319.69 1898.45 0.500 321.42 1899.45 0.485 323.26 1900.45 0.470 325.22 1901.45 0.456 327.30 1902.45 0.442 329.52 1903.45 0.428 331.88 1904.45 0.415 334.38 1905.45 0.403 337.05 1906.45 0.391 339.88 1907.45 0.380 342.87 1908.45 0.370 346.04 1909.45 0.361 349.38 1910.45 0.353 352.89 1911.45 0.345 356.55 1912.45 0.339 0.36 1913.45 0.334 4.29 1914.45 0.331 8.32 1915.45 0.328 12.43 1916.45 0.327 16.58 1917.45 0.328 20.74 1918.45 0.329 24.88 1919.45 0.331 28.97 1920.45 0.335 32.98 1921.45 0.340 36.90 1922.45 0.345 40.71 1923.45 0.351 44.40 1924.45 0.357 47.96 1925.45 0.363 51.39 1926.45 0.370 54.71 1927.45 0.376 57.91 1928.45 0.381 61.02 1929.45 0.386 64.05 1930.45 0.389 67.02 1931.45 0.390 69.95 1932.45 0.389 72.89 1933.45 0.385 75.87 1934.45 0.377 78.93 1935.45 0.366 82.16 1936.45 0.350 85.64 1937.45 0.329 89.51 1938.45 0.304 93.96 1939.45 0.275 99.28 1940.45 0.244 105.92 1941.45 0.212 114.56 1942.45 0.183 126.11 1943.45 0.161 141.40 1944.45 0.151 160.03 1945.45 0.156 179.22 1946.45 0.176 195.63 1947.45 0.205 208.10 1948.45 0.239 217.23 1949.45 0.277 223.97 1950.45 0.316 229.08 1951.45 0.355 233.06 1952.45 0.394 236.25 1953.45 0.433 238.87 1954.45 0.470 241.06 1955.45 0.508 242.92 1956.45 0.544 244.53 1957.45 0.579 245.95 1958.45 0.614 247.20 1959.45 0.647 248.32 1960.45 0.680 249.34 1961.45 0.712 250.26 1962.45 0.743 251.10 1963.45 0.773 251.87 1964.45 0.802 252.59 1965.45 0.831 253.26 1966.45 0.859 253.88 1967.45 0.886 254.47 1968.45 0.912 255.02 1969.45 0.938 255.54 1970.45 0.962 256.04 1971.45 0.987 256.51 1972.45 1.010 256.95 1973.45 1.033 257.38 1974.45 1.056 257.79 1975.45 1.077 258.18 1976.45 1.099 258.56 1977.45 1.119 258.92 1978.45 1.139 259.27 1979.45 1.159 259.61 1980.45 1.178 259.93 1981.45 1.197 260.25 1982.45 1.215 260.56 1983.45 1.232 260.85 1984.45 1.250 261.14 1985.45 1.266 261.43 1986.45 1.283 261.70 1987.45 1.298 261.97 1988.45 1.314 262.23 1989.45 1.329 262.48 1990.45 1.343 262.73 1991.45 1.358 262.98 1992.45 1.371 263.22 1993.45 1.385 263.45 1994.45 1.398 263.68 1995.45 1.410 263.91 1996.45 1.423 264.13 1997.45 1.435 264.35 1998.45 1.446 264.56 1999.45 1.458 264.78 2000.45 1.469 264.98 2001.45 1.479 265.19 2002.45 1.489 265.39 2003.45 1.499 265.59 2004.45 1.509 265.79 2005.45 1.518 265.98 2006.45 1.528 266.17 2007.45 1.536 266.36 2008.45 1.545 266.55 2009.45 1.553 266.74 2010.45 1.561 266.92 2011.45 1.568 267.10 2012.45 1.576 267.28 2013.45 1.583 267.46 2014.45 1.590 267.64 2015.45 1.596 267.82 2016.45 1.602 267.99 2017.45 1.608 268.16 2018.45 1.614 268.34 2019.45 1.620 268.51 2020.45 1.625 268.68 2021.45 1.630 268.84 2022.45 1.634 269.01 2023.45 1.639 269.18 2024.45 1.643 269.34 2025.45 1.647 269.51 2026.45 1.651 269.67 2027.45 1.655 269.83 2028.45 1.658 270.00 2029.45 1.661 270.16 2030.45 1.664 270.32 2031.45 1.667 270.48 2032.45 1.669 270.64 2033.45 1.671 270.80 2034.45 1.673 270.96 2035.45 1.675 271.12 2036.45 1.677 271.28 2037.45 1.678 271.44 2038.45 1.679 271.59 2039.45 1.680 271.75 2040.45 1.681 271.91 2041.45 1.681 272.07 2042.45 1.682 272.23 2043.45 1.682 272.38 2044.45 1.682 272.54 2045.45 1.682 272.70 2046.45 1.681 272.86 2047.45 1.680 273.01 2048.45 1.680 273.17 2049.45 1.679 273.33 2050.45 1.677 273.49 2051.45 1.676 273.65 2052.45 1.674 273.81 2053.45 1.673 273.97 2054.45 1.671 274.12 2055.45 1.668 274.28 2056.45 1.666 274.44 2057.45 1.664 274.61 2058.45 1.661 274.77 2059.45 1.658 274.93 2060.45 1.655 275.09 2061.45 1.652 275.25 2062.45 1.648 275.42 2063.45 1.645 275.58 2064.45 1.641 275.75 2065.45 1.637 275.91 2066.45 1.633 276.08 2067.45 1.629 276.25 2068.45 1.624 276.42 2069.45 1.620 276.59 2070.45 1.615 276.76 2071.45 1.610 276.93 2072.45 1.605 277.10 2073.45 1.600 277.27 2074.45 1.594 277.45 2075.45 1.588 277.62 2076.45 1.583 277.80 2077.45 1.577 277.98 2078.45 1.571 278.16 2079.45 1.564 278.34 2080.45 1.558 278.52 2081.45 1.551 278.71 2082.45 1.545 278.90 2083.45 1.538 279.08 2084.45 1.531 279.27 2085.45 1.523 279.46 2086.45 1.516 279.66 2087.45 1.508 279.85 2088.45 1.501 280.05 2089.45 1.493 280.25 2090.45 1.485 280.45 2091.45 1.477 280.65 2092.45 1.468 280.86 2093.45 1.460 281.07 2094.45 1.451 281.28 2095.45 1.442 281.49 2096.45 1.433 281.70 2097.45 1.424 281.92 2098.45 1.415 282.14 2099.45 1.405 282.37 2100.45 1.396 282.60 2101.45 1.386 282.83 2102.45 1.376 283.06 2103.45 1.366 283.30 2104.45 1.356 283.54 2105.45 1.346 283.78 2106.45 1.335 284.03 2107.45 1.325 284.28 2108.45 1.314 284.54 2109.45 1.303 284.80 2110.45 1.292 285.06 2111.45 1.281 285.33 2112.45 1.269 285.61 2113.45 1.258 285.89 2114.45 1.246 286.17 2115.45 1.234 286.46 2116.45 1.223 286.75 2117.45 1.210 287.06 2118.45 1.198 287.36 2119.45 1.186 287.68 2120.45 1.173 288.00 2121.45 1.161 288.32 2122.45 1.148 288.66 2123.45 1.135 289.00 2124.45 1.122 289.35 2125.45 1.109 289.71 2126.45 1.095 290.08 2127.45 1.082 290.45 2128.45 1.068 290.84 2129.45 1.055 291.23 2130.45 1.041 291.64 2131.45 1.027 292.06 2132.45 1.013 292.49 2133.45 0.998 292.93 2134.45 0.984 293.38 2135.45 0.970 293.85 2136.45 0.955 294.33 2137.45 0.940 294.83 2138.45 0.925 295.34 2139.45 0.910 295.87 2140.45 0.895 296.41 2141.45 0.880 296.98 2142.45 0.865 297.56 2143.45 0.850 298.17 2144.45 0.834 298.80 2145.45 0.818 299.45 2146.45 0.803 300.13 2147.45 0.787 300.84 2148.45 0.771 301.57 2149.45 0.755 302.34 2150.45 0.739 303.13 2151.45 0.723 303.97 2152.45 0.707 304.84 2153.45 0.691 305.75 2154.45 0.675 306.70 2155.45 0.659 307.71 2156.45 0.643 308.76 2157.45 0.627 309.86 2158.45 0.611 311.03
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:12:30 |