Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:43:32

Orbital Elements for STF1280AB
WDS: STF1280AB WDS ID/Discoverer
P: 688.512 Orbital period (years)
a: 7.18257 Semi-major axis (arcseconds)
i: 60.483 Inclination (degrees)
Ω: 0.372 Longitude of ascending node (degrees)
T: 1994.345 Epoch of periastron passage (year)
e: 0.89905 Eccentricity
ω: 221.491 Longitude of periastron (degrees)
Start-Year: 1681.0 Year
End-Year: 2369.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1280AB
Position: 085524.82+704739.2 Epoch-2000 right ascension and declination
WDS-ID: 08554+7048 WDS designation
Discoverer Code: STF1280AB Discover designation and components
ADS number: 7067 Aitken Double Star catalog
HD number: 75632 HD catalog number
Hipparcos number: 43820 Hipparcos catalog number
V1: 8.81 Magnitude of the primary
V2: 9.10 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1280AB



WDS 6th Orbit including measures of STF1280AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of STF1280AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     4.066    359.8
-------------------------
1681.0    10.869     25.4
1682.0    10.859     25.4
1683.0    10.847     25.5
1684.0    10.836     25.5
1685.0    10.825     25.6
1686.0    10.814     25.6
1687.0    10.802     25.7
1688.0    10.790     25.7
1689.0    10.778     25.8
1690.0    10.766     25.8
1691.0    10.754     25.9
1692.0    10.742     25.9
1693.0    10.730     26.0
1694.0    10.717     26.0
1695.0    10.705     26.1
1696.0    10.692     26.1
1697.0    10.679     26.2
1698.0    10.666     26.3
1699.0    10.653     26.3
1700.0    10.640     26.4
1701.0    10.627     26.4
1702.0    10.613     26.5
1703.0    10.600     26.5
1704.0    10.586     26.6
1705.0    10.572     26.6
1706.0    10.558     26.7
1707.0    10.544     26.7
1708.0    10.530     26.8
1709.0    10.515     26.8
1710.0    10.501     26.9
1711.0    10.486     26.9
1712.0    10.472     27.0
1713.0    10.457     27.0
1714.0    10.442     27.1
1715.0    10.427     27.1
1716.0    10.412     27.2
1717.0    10.396     27.2
1718.0    10.381     27.3
1719.0    10.365     27.4
1720.0    10.349     27.4
1721.0    10.333     27.5
1722.0    10.317     27.5
1723.0    10.301     27.6
1724.0    10.285     27.6
1725.0    10.269     27.7
1726.0    10.252     27.7
1727.0    10.236     27.8
1728.0    10.219     27.9
1729.0    10.202     27.9
1730.0    10.185     28.0
1731.0    10.168     28.0
1732.0    10.150     28.1
1733.0    10.133     28.1
1734.0    10.116     28.2
1735.0    10.098     28.2
1736.0    10.080     28.3
1737.0    10.062     28.4
1738.0    10.044     28.4
1739.0    10.026     28.5
1740.0    10.008     28.5
1741.0     9.989     28.6
1742.0     9.971     28.6
1743.0     9.952     28.7
1744.0     9.933     28.8
1745.0     9.914     28.8
1746.0     9.895     28.9
1747.0     9.876     28.9
1748.0     9.856     29.0
1749.0     9.837     29.1
1750.0     9.817     29.1
1751.0     9.798     29.2
1752.0     9.778     29.2
1753.0     9.758     29.3
1754.0     9.738     29.4
1755.0     9.717     29.4
1756.0     9.697     29.5
1757.0     9.677     29.6
1758.0     9.656     29.6
1759.0     9.635     29.7
1760.0     9.614     29.7
1761.0     9.593     29.8
1762.0     9.572     29.9
1763.0     9.551     29.9
1764.0     9.529     30.0
1765.0     9.508     30.1
1766.0     9.486     30.1
1767.0     9.464     30.2
1768.0     9.442     30.3
1769.0     9.420     30.3
1770.0     9.398     30.4
1771.0     9.375     30.5
1772.0     9.353     30.5
1773.0     9.330     30.6
1774.0     9.307     30.7
1775.0     9.284     30.7
1776.0     9.261     30.8
1777.0     9.238     30.9
1778.0     9.215     30.9
1779.0     9.191     31.0
1780.0     9.168     31.1
1781.0     9.144     31.1
1782.0     9.120     31.2
1783.0     9.096     31.3
1784.0     9.072     31.3
1785.0     9.047     31.4
1786.0     9.023     31.5
1787.0     8.998     31.6
1788.0     8.974     31.6
1789.0     8.949     31.7
1790.0     8.924     31.8
1791.0     8.899     31.8
1792.0     8.873     31.9
1793.0     8.848     32.0
1794.0     8.822     32.1
1795.0     8.797     32.1
1796.0     8.771     32.2
1797.0     8.745     32.3
1798.0     8.719     32.4
1799.0     8.693     32.4
1800.0     8.666     32.5
1801.0     8.640     32.6
1802.0     8.613     32.7
1803.0     8.586     32.8
1804.0     8.559     32.8
1805.0     8.532     32.9
1806.0     8.505     33.0
1807.0     8.477     33.1
1808.0     8.450     33.2
1809.0     8.422     33.2
1810.0     8.394     33.3
1811.0     8.366     33.4
1812.0     8.338     33.5
1813.0     8.310     33.6
1814.0     8.281     33.7
1815.0     8.253     33.7
1816.0     8.224     33.8
1817.0     8.195     33.9
1818.0     8.166     34.0
1819.0     8.137     34.1
1820.0     8.107     34.2
1821.0     8.078     34.3
1822.0     8.048     34.4
1823.0     8.019     34.4
1824.0     7.989     34.5
1825.0     7.958     34.6
1826.0     7.928     34.7
1827.0     7.898     34.8
1828.0     7.867     34.9
1829.0     7.837     35.0
1830.0     7.806     35.1
1831.0     7.775     35.2
1832.0     7.743     35.3
1833.0     7.712     35.4
1834.0     7.681     35.5
1835.0     7.649     35.6
1836.0     7.617     35.7
1837.0     7.585     35.8
1838.0     7.553     35.9
1839.0     7.521     36.0
1840.0     7.488     36.1
1841.0     7.456     36.2
1842.0     7.423     36.3
1843.0     7.390     36.4
1844.0     7.357     36.5
1845.0     7.324     36.6
1846.0     7.290     36.7
1847.0     7.257     36.8
1848.0     7.223     37.0
1849.0     7.189     37.1
1850.0     7.155     37.2
1851.0     7.121     37.3
1852.0     7.086     37.4
1853.0     7.051     37.5
1854.0     7.017     37.6
1855.0     6.982     37.8
1856.0     6.947     37.9
1857.0     6.911     38.0
1858.0     6.876     38.1
1859.0     6.840     38.2
1860.0     6.805     38.4
1861.0     6.769     38.5
1862.0     6.732     38.6
1863.0     6.696     38.8
1864.0     6.660     38.9
1865.0     6.623     39.0
1866.0     6.586     39.2
1867.0     6.549     39.3
1868.0     6.512     39.4
1869.0     6.474     39.6
1870.0     6.437     39.7
1871.0     6.399     39.8
1872.0     6.361     40.0
1873.0     6.323     40.1
1874.0     6.285     40.3
1875.0     6.246     40.4
1876.0     6.208     40.6
1877.0     6.169     40.7
1878.0     6.130     40.9
1879.0     6.091     41.0
1880.0     6.051     41.2
1881.0     6.012     41.4
1882.0     5.972     41.5
1883.0     5.932     41.7
1884.0     5.892     41.8
1885.0     5.851     42.0
1886.0     5.811     42.2
1887.0     5.770     42.4
1888.0     5.729     42.5
1889.0     5.688     42.7
1890.0     5.646     42.9
1891.0     5.605     43.1
1892.0     5.563     43.3
1893.0     5.521     43.5
1894.0     5.479     43.6
1895.0     5.437     43.8
1896.0     5.394     44.0
1897.0     5.351     44.2
1898.0     5.308     44.4
1899.0     5.265     44.7
1900.0     5.222     44.9
1901.0     5.178     45.1
1902.0     5.134     45.3
1903.0     5.090     45.5
1904.0     5.046     45.8
1905.0     5.002     46.0
1906.0     4.957     46.2
1907.0     4.912     46.5
1908.0     4.867     46.7
1909.0     4.822     46.9
1910.0     4.776     47.2
1911.0     4.730     47.5
1912.0     4.684     47.7
1913.0     4.638     48.0
1914.0     4.592     48.3
1915.0     4.545     48.5
1916.0     4.498     48.8
1917.0     4.451     49.1
1918.0     4.404     49.4
1919.0     4.357     49.7
1920.0     4.309     50.0
1921.0     4.261     50.3
1922.0     4.213     50.7
1923.0     4.164     51.0
1924.0     4.116     51.3
1925.0     4.067     51.7
1926.0     4.018     52.0
1927.0     3.969     52.4
1928.0     3.919     52.8
1929.0     3.869     53.2
1930.0     3.819     53.6
1931.0     3.769     54.0
1932.0     3.719     54.4
1933.0     3.668     54.8
1934.0     3.617     55.2
1935.0     3.566     55.7
1936.0     3.515     56.2
1937.0     3.464     56.6
1938.0     3.412     57.1
1939.0     3.360     57.6
1940.0     3.308     58.2
1941.0     3.256     58.7
1942.0     3.203     59.3
1943.0     3.150     59.8
1944.0     3.097     60.4
1945.0     3.044     61.0
1946.0     2.991     61.7
1947.0     2.938     62.3
1948.0     2.884     63.0
1949.0     2.831     63.7
1950.0     2.777     64.5
1951.0     2.723     65.3
1952.0     2.669     66.1
1953.0     2.615     66.9
1954.0     2.560     67.8
1955.0     2.506     68.7
1956.0     2.452     69.6
1957.0     2.397     70.6
1958.0     2.343     71.6
1959.0     2.289     72.7
1960.0     2.234     73.9
1961.0     2.180     75.1
1962.0     2.126     76.3
1963.0     2.073     77.6
1964.0     2.019     79.0
1965.0     1.966     80.5
1966.0     1.913     82.0
1967.0     1.861     83.7
1968.0     1.809     85.4
1969.0     1.758     87.2
1970.0     1.707     89.2
1971.0     1.657     91.2
1972.0     1.609     93.4
1973.0     1.561     95.7
1974.0     1.514     98.2
1975.0     1.469    100.8
1976.0     1.425    103.6
1977.0     1.383    106.5
1978.0     1.343    109.7
1979.0     1.304    113.0
1980.0     1.268    116.5
1981.0     1.234    120.2
1982.0     1.202    124.2
1983.0     1.172    128.3
1984.0     1.144    132.6
1985.0     1.117    137.2
1986.0     1.092    142.0
1987.0     1.066    147.0
1988.0     1.039    152.2
1989.0     1.008    157.8
1990.0     0.970    163.7
1991.0     0.920    170.2
1992.0     0.851    177.6
1993.0     0.757    186.6
1994.0     0.637    198.6
1995.0     0.510    216.6
1996.0     0.423    244.3
1997.0     0.439    277.2
1998.0     0.553    301.8
1999.0     0.714    316.6
2000.0     0.890    325.8
2001.0     1.067    331.9
2002.0     1.240    336.3
2003.0     1.409    339.6
2004.0     1.572    342.3
2005.0     1.728    344.4
2006.0     1.880    346.2
2007.0     2.026    347.7
2008.0     2.167    349.1
2009.0     2.304    350.2
2010.0     2.437    351.3
2011.0     2.565    352.2
2012.0     2.690    353.0
2013.0     2.812    353.8
2014.0     2.930    354.5
2015.0     3.046    355.2
2016.0     3.158    355.8
2017.0     3.268    356.3
2018.0     3.375    356.9
2019.0     3.480    357.3
2020.0     3.583    357.8
2021.0     3.683    358.3
2022.0     3.782    358.7
2023.0     3.878    359.1
2024.0     3.973    359.4
2025.0     4.066    359.8
2026.0     4.157      0.1
2027.0     4.246      0.5
2028.0     4.334      0.8
2029.0     4.420      1.1
2030.0     4.505      1.4
2031.0     4.589      1.7
2032.0     4.671      1.9
2033.0     4.752      2.2
2034.0     4.831      2.5
2035.0     4.909      2.7
2036.0     4.987      2.9
2037.0     5.063      3.2
2038.0     5.137      3.4
2039.0     5.211      3.6
2040.0     5.284      3.8
2041.0     5.356      4.0
2042.0     5.427      4.2
2043.0     5.496      4.4
2044.0     5.565      4.6
2045.0     5.633      4.8
2046.0     5.700      5.0
2047.0     5.766      5.2
2048.0     5.832      5.3
2049.0     5.896      5.5
2050.0     5.960      5.7
2051.0     6.023      5.8
2052.0     6.085      6.0
2053.0     6.147      6.1
2054.0     6.207      6.3
2055.0     6.267      6.4
2056.0     6.326      6.6
2057.0     6.385      6.7
2058.0     6.443      6.9
2059.0     6.500      7.0
2060.0     6.557      7.2
2061.0     6.613      7.3
2062.0     6.668      7.4
2063.0     6.723      7.6
2064.0     6.777      7.7
2065.0     6.830      7.8
2066.0     6.883      7.9
2067.0     6.936      8.1
2068.0     6.987      8.2
2069.0     7.039      8.3
2070.0     7.089      8.4
2071.0     7.139      8.5
2072.0     7.189      8.6
2073.0     7.238      8.7
2074.0     7.287      8.9
2075.0     7.335      9.0
2076.0     7.383      9.1
2077.0     7.430      9.2
2078.0     7.476      9.3
2079.0     7.523      9.4
2080.0     7.568      9.5
2081.0     7.614      9.6
2082.0     7.658      9.7
2083.0     7.703      9.8
2084.0     7.747      9.9
2085.0     7.790     10.0
2086.0     7.833     10.1
2087.0     7.876     10.2
2088.0     7.918     10.3
2089.0     7.960     10.4
2090.0     8.002     10.4
2091.0     8.043     10.5
2092.0     8.083     10.6
2093.0     8.123     10.7
2094.0     8.163     10.8
2095.0     8.203     10.9
2096.0     8.242     11.0
2097.0     8.281     11.1
2098.0     8.319     11.1
2099.0     8.357     11.2
2100.0     8.395     11.3
2101.0     8.432     11.4
2102.0     8.469     11.5
2103.0     8.505     11.6
2104.0     8.542     11.6
2105.0     8.578     11.7
2106.0     8.613     11.8
2107.0     8.648     11.9
2108.0     8.683     12.0
2109.0     8.718     12.0
2110.0     8.752     12.1
2111.0     8.786     12.2
2112.0     8.820     12.3
2113.0     8.853     12.3
2114.0     8.886     12.4
2115.0     8.919     12.5
2116.0     8.951     12.6
2117.0     8.983     12.6
2118.0     9.015     12.7
2119.0     9.046     12.8
2120.0     9.077     12.8
2121.0     9.108     12.9
2122.0     9.139     13.0
2123.0     9.169     13.0
2124.0     9.199     13.1
2125.0     9.229     13.2
2126.0     9.258     13.3
2127.0     9.288     13.3
2128.0     9.316     13.4
2129.0     9.345     13.5
2130.0     9.373     13.5
2131.0     9.402     13.6
2132.0     9.429     13.7
2133.0     9.457     13.7
2134.0     9.484     13.8
2135.0     9.511     13.8
2136.0     9.538     13.9
2137.0     9.565     14.0
2138.0     9.591     14.0
2139.0     9.617     14.1
2140.0     9.643     14.2
2141.0     9.668     14.2
2142.0     9.694     14.3
2143.0     9.719     14.4
2144.0     9.743     14.4
2145.0     9.768     14.5
2146.0     9.792     14.5
2147.0     9.816     14.6
2148.0     9.840     14.7
2149.0     9.864     14.7
2150.0     9.887     14.8
2151.0     9.910     14.8
2152.0     9.933     14.9
2153.0     9.956     15.0
2154.0     9.978     15.0
2155.0    10.001     15.1
2156.0    10.023     15.1
2157.0    10.044     15.2
2158.0    10.066     15.2
2159.0    10.087     15.3
2160.0    10.108     15.4
2161.0    10.129     15.4
2162.0    10.150     15.5
2163.0    10.170     15.5
2164.0    10.191     15.6
2165.0    10.211     15.6
2166.0    10.231     15.7
2167.0    10.250     15.7
2168.0    10.270     15.8
2169.0    10.289     15.9
2170.0    10.308     15.9
2171.0    10.327     16.0
2172.0    10.345     16.0
2173.0    10.364     16.1
2174.0    10.382     16.1
2175.0    10.400     16.2
2176.0    10.418     16.2
2177.0    10.435     16.3
2178.0    10.453     16.3
2179.0    10.470     16.4
2180.0    10.487     16.5
2181.0    10.504     16.5
2182.0    10.520     16.6
2183.0    10.537     16.6
2184.0    10.553     16.7
2185.0    10.569     16.7
2186.0    10.585     16.8
2187.0    10.600     16.8
2188.0    10.616     16.9
2189.0    10.631     16.9
2190.0    10.646     17.0
2191.0    10.661     17.0
2192.0    10.676     17.1
2193.0    10.691     17.1
2194.0    10.705     17.2
2195.0    10.719     17.2
2196.0    10.733     17.3
2197.0    10.747     17.3
2198.0    10.761     17.4
2199.0    10.774     17.4
2200.0    10.787     17.5
2201.0    10.800     17.5
2202.0    10.813     17.6
2203.0    10.826     17.6
2204.0    10.839     17.7
2205.0    10.851     17.7
2206.0    10.863     17.8
2207.0    10.875     17.8
2208.0    10.887     17.9
2209.0    10.899     17.9
2210.0    10.911     18.0
2211.0    10.922     18.0
2212.0    10.933     18.1
2213.0    10.944     18.1
2214.0    10.955     18.2
2215.0    10.966     18.2
2216.0    10.976     18.3
2217.0    10.987     18.3
2218.0    10.997     18.4
2219.0    11.007     18.4
2220.0    11.017     18.5
2221.0    11.027     18.5
2222.0    11.036     18.6
2223.0    11.045     18.6
2224.0    11.055     18.7
2225.0    11.064     18.7
2226.0    11.073     18.7
2227.0    11.081     18.8
2228.0    11.090     18.8
2229.0    11.098     18.9
2230.0    11.107     18.9
2231.0    11.115     19.0
2232.0    11.123     19.0
2233.0    11.131     19.1
2234.0    11.138     19.1
2235.0    11.146     19.2
2236.0    11.153     19.2
2237.0    11.160     19.3
2238.0    11.167     19.3
2239.0    11.174     19.4
2240.0    11.181     19.4
2241.0    11.187     19.4
2242.0    11.194     19.5
2243.0    11.200     19.5
2244.0    11.206     19.6
2245.0    11.212     19.6
2246.0    11.218     19.7
2247.0    11.223     19.7
2248.0    11.229     19.8
2249.0    11.234     19.8
2250.0    11.240     19.9
2251.0    11.245     19.9
2252.0    11.249     20.0
2253.0    11.254     20.0
2254.0    11.259     20.0
2255.0    11.263     20.1
2256.0    11.268     20.1
2257.0    11.272     20.2
2258.0    11.276     20.2
2259.0    11.280     20.3
2260.0    11.283     20.3
2261.0    11.287     20.4
2262.0    11.290     20.4
2263.0    11.294     20.5
2264.0    11.297     20.5
2265.0    11.300     20.6
2266.0    11.303     20.6
2267.0    11.305     20.6
2268.0    11.308     20.7
2269.0    11.310     20.7
2270.0    11.313     20.8
2271.0    11.315     20.8
2272.0    11.317     20.9
2273.0    11.319     20.9
2274.0    11.320     21.0
2275.0    11.322     21.0
2276.0    11.323     21.1
2277.0    11.325     21.1
2278.0    11.326     21.1
2279.0    11.327     21.2
2280.0    11.328     21.2
2281.0    11.329     21.3
2282.0    11.329     21.3
2283.0    11.330     21.4
2284.0    11.330     21.4
2285.0    11.330     21.5
2286.0    11.330     21.5
2287.0    11.330     21.6
2288.0    11.330     21.6
2289.0    11.330     21.6
2290.0    11.329     21.7
2291.0    11.329     21.7
2292.0    11.328     21.8
2293.0    11.327     21.8
2294.0    11.326     21.9
2295.0    11.325     21.9
2296.0    11.323     22.0
2297.0    11.322     22.0
2298.0    11.320     22.1
2299.0    11.319     22.1
2300.0    11.317     22.1
2301.0    11.315     22.2
2302.0    11.313     22.2
2303.0    11.310     22.3
2304.0    11.308     22.3
2305.0    11.306     22.4
2306.0    11.303     22.4
2307.0    11.300     22.5
2308.0    11.297     22.5
2309.0    11.294     22.6
2310.0    11.291     22.6
2311.0    11.288     22.6
2312.0    11.284     22.7
2313.0    11.281     22.7
2314.0    11.277     22.8
2315.0    11.273     22.8
2316.0    11.269     22.9
2317.0    11.265     22.9
2318.0    11.261     23.0
2319.0    11.257     23.0
2320.0    11.252     23.1
2321.0    11.248     23.1
2322.0    11.243     23.1
2323.0    11.238     23.2
2324.0    11.233     23.2
2325.0    11.228     23.3
2326.0    11.222     23.3
2327.0    11.217     23.4
2328.0    11.212     23.4
2329.0    11.206     23.5
2330.0    11.200     23.5
2331.0    11.194     23.6
2332.0    11.188     23.6
2333.0    11.182     23.7
2334.0    11.176     23.7
2335.0    11.169     23.7
2336.0    11.163     23.8
2337.0    11.156     23.8
2338.0    11.149     23.9
2339.0    11.142     23.9
2340.0    11.135     24.0
2341.0    11.128     24.0
2342.0    11.121     24.1
2343.0    11.113     24.1
2344.0    11.106     24.2
2345.0    11.098     24.2
2346.0    11.090     24.3
2347.0    11.082     24.3
2348.0    11.074     24.4
2349.0    11.066     24.4
2350.0    11.058     24.5
2351.0    11.049     24.5
2352.0    11.041     24.6
2353.0    11.032     24.6
2354.0    11.023     24.6
2355.0    11.014     24.7
2356.0    11.005     24.7
2357.0    10.996     24.8
2358.0    10.986     24.8
2359.0    10.977     24.9
2360.0    10.967     24.9
2361.0    10.957     25.0
2362.0    10.948     25.0
2363.0    10.938     25.1
2364.0    10.927     25.1
2365.0    10.917     25.2
2366.0    10.907     25.2
2367.0    10.896     25.3
2368.0    10.886     25.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


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