| WDS: | STF520 | WDS ID/Discoverer |
| P: | 237.000 | Orbital period (years) |
| a: | 0.52 | Semi-major axis (arcseconds) |
| i: | 21.0 | Inclination (degrees) |
| Ω: | 144.3 | Longitude of ascending node (degrees) |
| T: | 1972.440 | Epoch of periastron passage (year) |
| e: | 0.859 | Eccentricity |
| ω: | 136.2 | Longitude of periastron (degrees) |
| Start-Year: | 1906.5 | Year |
| End-Year: | 2143.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF520 |
||
| Position: | 041814.55+224824.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04182+2248 | WDS designation |
| Discoverer Code: | STF520 | Discover designation and components |
| ADS number: | 3114 | Aitken Double Star catalog |
| HD number: | 27160 | HD catalog number |
| Hipparcos number: | 20071 | Hipparcos catalog number |
| V1: | 8.26 | Magnitude of the primary |
| V2: | 8.45 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2019 | 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: | USN2021b | 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 0.727 85.29 -------------------------- 1906.50 0.822 115.23 1907.50 0.817 115.52 1908.50 0.812 115.81 1909.50 0.806 116.11 1910.50 0.801 116.42 1911.50 0.796 116.73 1912.50 0.790 117.04 1913.50 0.784 117.35 1914.50 0.779 117.68 1915.50 0.773 118.00 1916.50 0.767 118.33 1917.50 0.760 118.67 1918.50 0.754 119.01 1919.50 0.748 119.36 1920.50 0.741 119.72 1921.50 0.734 120.08 1922.50 0.727 120.44 1923.50 0.720 120.82 1924.50 0.713 121.20 1925.50 0.706 121.59 1926.50 0.698 121.99 1927.50 0.691 122.40 1928.50 0.683 122.81 1929.50 0.675 123.24 1930.50 0.666 123.68 1931.50 0.658 124.12 1932.50 0.650 124.58 1933.50 0.641 125.05 1934.50 0.632 125.54 1935.50 0.623 126.04 1936.50 0.613 126.55 1937.50 0.604 127.08 1938.50 0.594 127.63 1939.50 0.584 128.19 1940.50 0.574 128.78 1941.50 0.564 129.39 1942.50 0.553 130.02 1943.50 0.542 130.67 1944.50 0.531 131.35 1945.50 0.519 132.07 1946.50 0.508 132.81 1947.50 0.496 133.59 1948.50 0.483 134.41 1949.50 0.471 135.27 1950.50 0.458 136.18 1951.50 0.444 137.15 1952.50 0.431 138.17 1953.50 0.417 139.27 1954.50 0.402 140.44 1955.50 0.387 141.70 1956.50 0.372 143.06 1957.50 0.356 144.54 1958.50 0.340 146.16 1959.50 0.323 147.95 1960.50 0.305 149.94 1961.50 0.287 152.18 1962.50 0.268 154.73 1963.50 0.249 157.67 1964.50 0.228 161.12 1965.50 0.207 165.27 1966.50 0.185 170.40 1967.50 0.162 176.97 1968.50 0.138 185.77 1969.50 0.114 198.30 1970.50 0.091 217.29 1971.50 0.075 246.60 1972.50 0.071 284.79 1973.50 0.081 319.41 1974.50 0.099 343.96 1975.50 0.119 0.69 1976.50 0.139 12.54 1977.50 0.160 21.36 1978.50 0.180 28.20 1979.50 0.199 33.68 1980.50 0.218 38.21 1981.50 0.236 42.03 1982.50 0.254 45.31 1983.50 0.271 48.16 1984.50 0.287 50.69 1985.50 0.303 52.94 1986.50 0.319 54.96 1987.50 0.334 56.80 1988.50 0.349 58.49 1989.50 0.364 60.03 1990.50 0.378 61.46 1991.50 0.391 62.79 1992.50 0.405 64.03 1993.50 0.418 65.19 1994.50 0.431 66.28 1995.50 0.443 67.31 1996.50 0.455 68.28 1997.50 0.467 69.20 1998.50 0.479 70.08 1999.50 0.490 70.92 2000.50 0.502 71.71 2001.50 0.513 72.48 2002.50 0.523 73.21 2003.50 0.534 73.91 2004.50 0.544 74.59 2005.50 0.554 75.24 2006.50 0.564 75.87 2007.50 0.574 76.47 2008.50 0.583 77.06 2009.50 0.593 77.63 2010.50 0.602 78.18 2011.50 0.611 78.71 2012.50 0.620 79.23 2013.50 0.628 79.74 2014.50 0.637 80.23 2015.50 0.645 80.71 2016.50 0.653 81.17 2017.50 0.661 81.63 2018.50 0.669 82.07 2019.50 0.677 82.50 2020.50 0.684 82.93 2021.50 0.692 83.34 2022.50 0.699 83.75 2023.50 0.706 84.15 2024.50 0.713 84.54 2025.50 0.720 84.92 2026.50 0.727 85.29 2027.50 0.733 85.66 2028.50 0.740 86.02 2029.50 0.746 86.38 2030.50 0.752 86.73 2031.50 0.758 87.07 2032.50 0.764 87.41 2033.50 0.770 87.75 2034.50 0.776 88.07 2035.50 0.782 88.40 2036.50 0.787 88.72 2037.50 0.793 89.03 2038.50 0.798 89.34 2039.50 0.803 89.65 2040.50 0.808 89.95 2041.50 0.813 90.25 2042.50 0.818 90.54 2043.50 0.823 90.84 2044.50 0.827 91.12 2045.50 0.832 91.41 2046.50 0.836 91.69 2047.50 0.841 91.97 2048.50 0.845 92.25 2049.50 0.849 92.52 2050.50 0.853 92.79 2051.50 0.857 93.06 2052.50 0.861 93.33 2053.50 0.864 93.59 2054.50 0.868 93.85 2055.50 0.871 94.11 2056.50 0.875 94.37 2057.50 0.878 94.63 2058.50 0.881 94.88 2059.50 0.885 95.13 2060.50 0.888 95.38 2061.50 0.891 95.63 2062.50 0.893 95.88 2063.50 0.896 96.12 2064.50 0.899 96.37 2065.50 0.901 96.61 2066.50 0.904 96.85 2067.50 0.906 97.09 2068.50 0.909 97.33 2069.50 0.911 97.56 2070.50 0.913 97.80 2071.50 0.915 98.04 2072.50 0.917 98.27 2073.50 0.919 98.50 2074.50 0.920 98.73 2075.50 0.922 98.97 2076.50 0.924 99.20 2077.50 0.925 99.43 2078.50 0.927 99.65 2079.50 0.928 99.88 2080.50 0.929 100.11 2081.50 0.930 100.34 2082.50 0.931 100.56 2083.50 0.932 100.79 2084.50 0.933 101.02 2085.50 0.934 101.24 2086.50 0.934 101.47 2087.50 0.935 101.69 2088.50 0.936 101.92 2089.50 0.936 102.14 2090.50 0.936 102.36 2091.50 0.937 102.59 2092.50 0.937 102.81 2093.50 0.937 103.04 2094.50 0.937 103.26 2095.50 0.937 103.48 2096.50 0.937 103.71 2097.50 0.936 103.93 2098.50 0.936 104.15 2099.50 0.935 104.38 2100.50 0.935 104.60 2101.50 0.934 104.83 2102.50 0.933 105.05 2103.50 0.933 105.28 2104.50 0.932 105.50 2105.50 0.931 105.73 2106.50 0.930 105.96 2107.50 0.928 106.19 2108.50 0.927 106.41 2109.50 0.926 106.64 2110.50 0.924 106.87 2111.50 0.923 107.10 2112.50 0.921 107.33 2113.50 0.919 107.56 2114.50 0.918 107.80 2115.50 0.916 108.03 2116.50 0.914 108.27 2117.50 0.912 108.50 2118.50 0.909 108.74 2119.50 0.907 108.98 2120.50 0.905 109.22 2121.50 0.902 109.46 2122.50 0.900 109.70 2123.50 0.897 109.94 2124.50 0.894 110.19 2125.50 0.891 110.43 2126.50 0.888 110.68 2127.50 0.885 110.93 2128.50 0.882 111.18 2129.50 0.879 111.43 2130.50 0.875 111.69 2131.50 0.872 111.95 2132.50 0.868 112.21 2133.50 0.865 112.47 2134.50 0.861 112.73 2135.50 0.857 113.00 2136.50 0.853 113.27 2137.50 0.849 113.54 2138.50 0.844 113.81 2139.50 0.840 114.09 2140.50 0.836 114.37 2141.50 0.831 114.65 2142.50 0.826 114.94
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:20:28 |