| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:30:31 |
| WDS: | STF1938BA,BB | WDS ID/Discoverer |
| P: | 256.500 | Orbital period (years) |
| a: | 1.45 | Semi-major axis (arcseconds) |
| i: | 134.2 | Inclination (degrees) |
| Ω: | 176.2 | Longitude of ascending node (degrees) |
| T: | 1864.250 | Epoch of periastron passage (year) |
| e: | 0.579 | Eccentricity |
| ω: | 338.7 | Longitude of periastron (degrees) |
| Start-Year: | 1897.0 | Year |
| End-Year: | 2153.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 152430.89+372052.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 15245+3723 | WDS designation |
| Discoverer Code: | STF1938BA,BB | Discover designation and components |
| ADS number: | 9626 | Aitken Double Star catalog |
| HD number: | 137392 | HD catalog number |
| Hipparcos number: | 75415 | Hipparcos catalog number |
| V1: | 7.09 | Magnitude of the primary |
| V2: | 7.63 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | Date of last observation |
| Orbit grade: | 2 | 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 2.176 0.3 ------------------------- 1897.0 0.896 80.3 1898.0 0.914 78.3 1899.0 0.932 76.3 1900.0 0.951 74.4 1901.0 0.970 72.6 1902.0 0.989 70.9 1903.0 1.008 69.2 1904.0 1.028 67.6 1905.0 1.047 66.0 1906.0 1.067 64.5 1907.0 1.087 63.1 1908.0 1.107 61.7 1909.0 1.127 60.3 1910.0 1.147 59.0 1911.0 1.167 57.8 1912.0 1.187 56.6 1913.0 1.207 55.4 1914.0 1.227 54.3 1915.0 1.247 53.2 1916.0 1.266 52.1 1917.0 1.286 51.1 1918.0 1.306 50.1 1919.0 1.325 49.1 1920.0 1.345 48.2 1921.0 1.364 47.2 1922.0 1.383 46.4 1923.0 1.402 45.5 1924.0 1.421 44.6 1925.0 1.440 43.8 1926.0 1.458 43.0 1927.0 1.477 42.3 1928.0 1.495 41.5 1929.0 1.513 40.7 1930.0 1.531 40.0 1931.0 1.549 39.3 1932.0 1.566 38.6 1933.0 1.584 38.0 1934.0 1.601 37.3 1935.0 1.618 36.6 1936.0 1.635 36.0 1937.0 1.651 35.4 1938.0 1.667 34.8 1939.0 1.684 34.2 1940.0 1.699 33.6 1941.0 1.715 33.0 1942.0 1.731 32.5 1943.0 1.746 31.9 1944.0 1.761 31.4 1945.0 1.776 30.8 1946.0 1.790 30.3 1947.0 1.805 29.8 1948.0 1.819 29.3 1949.0 1.833 28.8 1950.0 1.847 28.3 1951.0 1.860 27.8 1952.0 1.873 27.3 1953.0 1.887 26.8 1954.0 1.899 26.3 1955.0 1.912 25.9 1956.0 1.924 25.4 1957.0 1.936 25.0 1958.0 1.948 24.5 1959.0 1.960 24.1 1960.0 1.971 23.7 1961.0 1.983 23.2 1962.0 1.993 22.8 1963.0 2.004 22.4 1964.0 2.015 22.0 1965.0 2.025 21.6 1966.0 2.035 21.2 1967.0 2.045 20.8 1968.0 2.054 20.4 1969.0 2.063 20.0 1970.0 2.072 19.6 1971.0 2.081 19.2 1972.0 2.090 18.8 1973.0 2.098 18.4 1974.0 2.106 18.0 1975.0 2.114 17.7 1976.0 2.122 17.3 1977.0 2.129 16.9 1978.0 2.136 16.5 1979.0 2.143 16.2 1980.0 2.149 15.8 1981.0 2.156 15.4 1982.0 2.162 15.1 1983.0 2.168 14.7 1984.0 2.173 14.4 1985.0 2.179 14.0 1986.0 2.184 13.7 1987.0 2.189 13.3 1988.0 2.193 13.0 1989.0 2.197 12.6 1990.0 2.201 12.3 1991.0 2.205 11.9 1992.0 2.209 11.6 1993.0 2.212 11.2 1994.0 2.215 10.9 1995.0 2.218 10.6 1996.0 2.221 10.2 1997.0 2.223 9.9 1998.0 2.225 9.5 1999.0 2.227 9.2 2000.0 2.228 8.9 2001.0 2.229 8.5 2002.0 2.230 8.2 2003.0 2.231 7.8 2004.0 2.231 7.5 2005.0 2.231 7.2 2006.0 2.231 6.8 2007.0 2.231 6.5 2008.0 2.230 6.2 2009.0 2.229 5.8 2010.0 2.228 5.5 2011.0 2.227 5.1 2012.0 2.225 4.8 2013.0 2.223 4.5 2014.0 2.220 4.1 2015.0 2.218 3.8 2016.0 2.215 3.4 2017.0 2.212 3.1 2018.0 2.208 2.8 2019.0 2.205 2.4 2020.0 2.200 2.1 2021.0 2.196 1.7 2022.0 2.192 1.4 2023.0 2.187 1.0 2024.0 2.181 0.7 2025.0 2.176 0.3 2026.0 2.170 360.0 2027.0 2.164 359.6 2028.0 2.157 359.2 2029.0 2.151 358.9 2030.0 2.144 358.5 2031.0 2.136 358.2 2032.0 2.129 357.8 2033.0 2.121 357.4 2034.0 2.112 357.0 2035.0 2.104 356.7 2036.0 2.095 356.3 2037.0 2.086 355.9 2038.0 2.076 355.5 2039.0 2.066 355.1 2040.0 2.056 354.7 2041.0 2.045 354.3 2042.0 2.034 353.9 2043.0 2.023 353.5 2044.0 2.012 353.1 2045.0 2.000 352.7 2046.0 1.987 352.3 2047.0 1.975 351.8 2048.0 1.962 351.4 2049.0 1.948 351.0 2050.0 1.935 350.5 2051.0 1.921 350.1 2052.0 1.906 349.6 2053.0 1.891 349.1 2054.0 1.876 348.7 2055.0 1.861 348.2 2056.0 1.845 347.7 2057.0 1.828 347.2 2058.0 1.812 346.7 2059.0 1.795 346.2 2060.0 1.777 345.7 2061.0 1.759 345.1 2062.0 1.741 344.6 2063.0 1.722 344.0 2064.0 1.703 343.4 2065.0 1.684 342.9 2066.0 1.664 342.3 2067.0 1.643 341.6 2068.0 1.623 341.0 2069.0 1.601 340.4 2070.0 1.580 339.7 2071.0 1.558 339.0 2072.0 1.535 338.3 2073.0 1.512 337.6 2074.0 1.489 336.9 2075.0 1.465 336.1 2076.0 1.441 335.3 2077.0 1.416 334.5 2078.0 1.391 333.6 2079.0 1.366 332.7 2080.0 1.340 331.8 2081.0 1.313 330.9 2082.0 1.286 329.9 2083.0 1.259 328.8 2084.0 1.231 327.8 2085.0 1.203 326.6 2086.0 1.175 325.4 2087.0 1.146 324.2 2088.0 1.116 322.9 2089.0 1.087 321.5 2090.0 1.057 320.0 2091.0 1.026 318.5 2092.0 0.996 316.9 2093.0 0.965 315.1 2094.0 0.934 313.2 2095.0 0.903 311.3 2096.0 0.872 309.1 2097.0 0.841 306.8 2098.0 0.810 304.4 2099.0 0.780 301.7 2100.0 0.750 298.9 2101.0 0.720 295.8 2102.0 0.692 292.4 2103.0 0.664 288.7 2104.0 0.638 284.8 2105.0 0.614 280.5 2106.0 0.591 275.9 2107.0 0.571 270.9 2108.0 0.553 265.6 2109.0 0.539 259.9 2110.0 0.528 254.0 2111.0 0.520 247.9 2112.0 0.516 241.7 2113.0 0.516 235.4 2114.0 0.518 229.1 2115.0 0.524 222.9 2116.0 0.533 216.9 2117.0 0.543 211.1 2118.0 0.555 205.5 2119.0 0.567 200.2 2120.0 0.580 195.1 2121.0 0.592 190.2 2122.0 0.604 185.5 2123.0 0.615 181.0 2124.0 0.625 176.7 2125.0 0.634 172.4 2126.0 0.641 168.3 2127.0 0.648 164.3 2128.0 0.653 160.3 2129.0 0.658 156.4 2130.0 0.663 152.6 2131.0 0.666 148.8 2132.0 0.670 145.0 2133.0 0.674 141.3 2134.0 0.678 137.6 2135.0 0.682 134.0 2136.0 0.687 130.4 2137.0 0.693 126.9 2138.0 0.699 123.4 2139.0 0.706 120.0 2140.0 0.714 116.7 2141.0 0.723 113.5 2142.0 0.732 110.3 2143.0 0.743 107.2 2144.0 0.754 104.2 2145.0 0.766 101.3 2146.0 0.779 98.5 2147.0 0.792 95.8 2148.0 0.807 93.1 2149.0 0.822 90.6 2150.0 0.837 88.2 2151.0 0.854 85.8 2152.0 0.870 83.6