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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:25:23

Orbital Elements for STF881AB
WDS: STF881AB WDS ID/Discoverer
P: 503.000 Orbital period (years)
a: 0.683 Semi-major axis (arcseconds)
i: 43.7 Inclination (degrees)
Ω: 61.2 Longitude of ascending node (degrees)
T: 1650.000 Epoch of periastron passage (year)
e: 0.518 Eccentricity
ω: 233.8 Longitude of periastron (degrees)
Start-Year: 1774.0 Year
End-Year: 2276.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF881AB
Position: 062203.57+592219.5 Epoch-2000 right ascension and declination
WDS-ID: 06221+5922 WDS designation
Discoverer Code: STF881AB Discover designation and components
ADS number: 4950 Aitken Double Star catalog
HD number: 43812 HD catalog number
Hipparcos number: 30272 Hipparcos catalog number
V1: 6.13 Magnitude of the primary
V2: 7.71 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF881AB



WDS 6th Orbit including measures of STF881AB

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


Ephemeris of STF881AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.613    153.0
-------------------------
1774.0     0.823     71.9
1775.0     0.825     72.2
1776.0     0.827     72.5
1777.0     0.830     72.8
1778.0     0.832     73.1
1779.0     0.835     73.4
1780.0     0.837     73.7
1781.0     0.839     74.0
1782.0     0.841     74.3
1783.0     0.843     74.6
1784.0     0.845     74.9
1785.0     0.847     75.2
1786.0     0.849     75.5
1787.0     0.851     75.7
1788.0     0.853     76.0
1789.0     0.855     76.3
1790.0     0.857     76.6
1791.0     0.859     76.9
1792.0     0.860     77.2
1793.0     0.862     77.4
1794.0     0.864     77.7
1795.0     0.865     78.0
1796.0     0.867     78.3
1797.0     0.868     78.5
1798.0     0.870     78.8
1799.0     0.871     79.1
1800.0     0.873     79.4
1801.0     0.874     79.6
1802.0     0.876     79.9
1803.0     0.877     80.2
1804.0     0.878     80.4
1805.0     0.879     80.7
1806.0     0.881     81.0
1807.0     0.882     81.2
1808.0     0.883     81.5
1809.0     0.884     81.8
1810.0     0.885     82.0
1811.0     0.886     82.3
1812.0     0.887     82.6
1813.0     0.888     82.8
1814.0     0.889     83.1
1815.0     0.890     83.3
1816.0     0.891     83.6
1817.0     0.892     83.9
1818.0     0.892     84.1
1819.0     0.893     84.4
1820.0     0.894     84.6
1821.0     0.894     84.9
1822.0     0.895     85.2
1823.0     0.896     85.4
1824.0     0.896     85.7
1825.0     0.897     85.9
1826.0     0.897     86.2
1827.0     0.898     86.4
1828.0     0.898     86.7
1829.0     0.899     86.9
1830.0     0.899     87.2
1831.0     0.900     87.5
1832.0     0.900     87.7
1833.0     0.900     88.0
1834.0     0.900     88.2
1835.0     0.901     88.5
1836.0     0.901     88.7
1837.0     0.901     89.0
1838.0     0.901     89.2
1839.0     0.901     89.5
1840.0     0.902     89.7
1841.0     0.902     90.0
1842.0     0.902     90.3
1843.0     0.902     90.5
1844.0     0.902     90.8
1845.0     0.902     91.0
1846.0     0.902     91.3
1847.0     0.902     91.5
1848.0     0.901     91.8
1849.0     0.901     92.0
1850.0     0.901     92.3
1851.0     0.901     92.5
1852.0     0.901     92.8
1853.0     0.900     93.1
1854.0     0.900     93.3
1855.0     0.900     93.6
1856.0     0.900     93.8
1857.0     0.899     94.1
1858.0     0.899     94.3
1859.0     0.898     94.6
1860.0     0.898     94.8
1861.0     0.898     95.1
1862.0     0.897     95.4
1863.0     0.897     95.6
1864.0     0.896     95.9
1865.0     0.896     96.1
1866.0     0.895     96.4
1867.0     0.894     96.6
1868.0     0.894     96.9
1869.0     0.893     97.2
1870.0     0.892     97.4
1871.0     0.892     97.7
1872.0     0.891     97.9
1873.0     0.890     98.2
1874.0     0.890     98.5
1875.0     0.889     98.7
1876.0     0.888     99.0
1877.0     0.887     99.2
1878.0     0.886     99.5
1879.0     0.885     99.8
1880.0     0.885    100.0
1881.0     0.884    100.3
1882.0     0.883    100.6
1883.0     0.882    100.8
1884.0     0.881    101.1
1885.0     0.880    101.4
1886.0     0.879    101.6
1887.0     0.878    101.9
1888.0     0.877    102.2
1889.0     0.876    102.4
1890.0     0.875    102.7
1891.0     0.874    103.0
1892.0     0.872    103.2
1893.0     0.871    103.5
1894.0     0.870    103.8
1895.0     0.869    104.1
1896.0     0.868    104.3
1897.0     0.866    104.6
1898.0     0.865    104.9
1899.0     0.864    105.2
1900.0     0.863    105.4
1901.0     0.861    105.7
1902.0     0.860    106.0
1903.0     0.859    106.3
1904.0     0.857    106.5
1905.0     0.856    106.8
1906.0     0.855    107.1
1907.0     0.853    107.4
1908.0     0.852    107.7
1909.0     0.850    108.0
1910.0     0.849    108.3
1911.0     0.847    108.5
1912.0     0.846    108.8
1913.0     0.844    109.1
1914.0     0.843    109.4
1915.0     0.841    109.7
1916.0     0.840    110.0
1917.0     0.838    110.3
1918.0     0.837    110.6
1919.0     0.835    110.9
1920.0     0.833    111.2
1921.0     0.832    111.5
1922.0     0.830    111.8
1923.0     0.828    112.1
1924.0     0.827    112.4
1925.0     0.825    112.7
1926.0     0.823    113.0
1927.0     0.822    113.3
1928.0     0.820    113.6
1929.0     0.818    113.9
1930.0     0.816    114.2
1931.0     0.815    114.5
1932.0     0.813    114.8
1933.0     0.811    115.1
1934.0     0.809    115.5
1935.0     0.807    115.8
1936.0     0.806    116.1
1937.0     0.804    116.4
1938.0     0.802    116.7
1939.0     0.800    117.0
1940.0     0.798    117.4
1941.0     0.796    117.7
1942.0     0.794    118.0
1943.0     0.792    118.3
1944.0     0.790    118.7
1945.0     0.788    119.0
1946.0     0.787    119.3
1947.0     0.785    119.7
1948.0     0.783    120.0
1949.0     0.781    120.4
1950.0     0.779    120.7
1951.0     0.777    121.0
1952.0     0.775    121.4
1953.0     0.772    121.7
1954.0     0.770    122.1
1955.0     0.768    122.4
1956.0     0.766    122.8
1957.0     0.764    123.1
1958.0     0.762    123.5
1959.0     0.760    123.8
1960.0     0.758    124.2
1961.0     0.756    124.5
1962.0     0.754    124.9
1963.0     0.752    125.3
1964.0     0.750    125.6
1965.0     0.747    126.0
1966.0     0.745    126.4
1967.0     0.743    126.8
1968.0     0.741    127.1
1969.0     0.739    127.5
1970.0     0.737    127.9
1971.0     0.734    128.3
1972.0     0.732    128.7
1973.0     0.730    129.0
1974.0     0.728    129.4
1975.0     0.726    129.8
1976.0     0.723    130.2
1977.0     0.721    130.6
1978.0     0.719    131.0
1979.0     0.717    131.4
1980.0     0.715    131.8
1981.0     0.712    132.2
1982.0     0.710    132.6
1983.0     0.708    133.0
1984.0     0.706    133.4
1985.0     0.703    133.9
1986.0     0.701    134.3
1987.0     0.699    134.7
1988.0     0.697    135.1
1989.0     0.694    135.6
1990.0     0.692    136.0
1991.0     0.690    136.4
1992.0     0.688    136.9
1993.0     0.685    137.3
1994.0     0.683    137.7
1995.0     0.681    138.2
1996.0     0.679    138.6
1997.0     0.676    139.1
1998.0     0.674    139.5
1999.0     0.672    140.0
2000.0     0.669    140.4
2001.0     0.667    140.9
2002.0     0.665    141.4
2003.0     0.663    141.8
2004.0     0.660    142.3
2005.0     0.658    142.8
2006.0     0.656    143.3
2007.0     0.654    143.7
2008.0     0.651    144.2
2009.0     0.649    144.7
2010.0     0.647    145.2
2011.0     0.645    145.7
2012.0     0.642    146.2
2013.0     0.640    146.7
2014.0     0.638    147.2
2015.0     0.636    147.7
2016.0     0.633    148.2
2017.0     0.631    148.7
2018.0     0.629    149.3
2019.0     0.627    149.8
2020.0     0.624    150.3
2021.0     0.622    150.9
2022.0     0.620    151.4
2023.0     0.618    151.9
2024.0     0.616    152.5
2025.0     0.613    153.0
2026.0     0.611    153.6
2027.0     0.609    154.1
2028.0     0.607    154.7
2029.0     0.605    155.2
2030.0     0.603    155.8
2031.0     0.600    156.4
2032.0     0.598    157.0
2033.0     0.596    157.5
2034.0     0.594    158.1
2035.0     0.592    158.7
2036.0     0.590    159.3
2037.0     0.588    159.9
2038.0     0.586    160.5
2039.0     0.584    161.1
2040.0     0.581    161.7
2041.0     0.579    162.3
2042.0     0.577    162.9
2043.0     0.575    163.6
2044.0     0.573    164.2
2045.0     0.571    164.8
2046.0     0.569    165.4
2047.0     0.567    166.1
2048.0     0.565    166.7
2049.0     0.563    167.4
2050.0     0.561    168.0
2051.0     0.559    168.7
2052.0     0.557    169.4
2053.0     0.555    170.0
2054.0     0.553    170.7
2055.0     0.552    171.4
2056.0     0.550    172.0
2057.0     0.548    172.7
2058.0     0.546    173.4
2059.0     0.544    174.1
2060.0     0.542    174.8
2061.0     0.540    175.5
2062.0     0.538    176.2
2063.0     0.536    176.9
2064.0     0.535    177.7
2065.0     0.533    178.4
2066.0     0.531    179.1
2067.0     0.529    179.9
2068.0     0.527    180.6
2069.0     0.526    181.3
2070.0     0.524    182.1
2071.0     0.522    182.8
2072.0     0.520    183.6
2073.0     0.518    184.4
2074.0     0.517    185.1
2075.0     0.515    185.9
2076.0     0.513    186.7
2077.0     0.511    187.5
2078.0     0.510    188.3
2079.0     0.508    189.1
2080.0     0.506    189.9
2081.0     0.504    190.7
2082.0     0.503    191.5
2083.0     0.501    192.3
2084.0     0.499    193.2
2085.0     0.497    194.0
2086.0     0.496    194.8
2087.0     0.494    195.7
2088.0     0.492    196.5
2089.0     0.490    197.4
2090.0     0.488    198.2
2091.0     0.487    199.1
2092.0     0.485    200.0
2093.0     0.483    200.9
2094.0     0.481    201.8
2095.0     0.479    202.6
2096.0     0.477    203.6
2097.0     0.475    204.5
2098.0     0.473    205.4
2099.0     0.472    206.3
2100.0     0.470    207.2
2101.0     0.468    208.2
2102.0     0.465    209.1
2103.0     0.463    210.1
2104.0     0.461    211.0
2105.0     0.459    212.0
2106.0     0.457    213.0
2107.0     0.455    214.0
2108.0     0.452    215.0
2109.0     0.450    216.0
2110.0     0.448    217.0
2111.0     0.445    218.1
2112.0     0.443    219.1
2113.0     0.440    220.2
2114.0     0.438    221.3
2115.0     0.435    222.3
2116.0     0.432    223.4
2117.0     0.429    224.6
2118.0     0.426    225.7
2119.0     0.423    226.8
2120.0     0.420    228.0
2121.0     0.417    229.2
2122.0     0.414    230.4
2123.0     0.410    231.6
2124.0     0.407    232.8
2125.0     0.403    234.1
2126.0     0.400    235.4
2127.0     0.396    236.7
2128.0     0.392    238.0
2129.0     0.388    239.3
2130.0     0.384    240.7
2131.0     0.380    242.1
2132.0     0.376    243.6
2133.0     0.371    245.1
2134.0     0.367    246.6
2135.0     0.362    248.1
2136.0     0.357    249.7
2137.0     0.353    251.4
2138.0     0.348    253.1
2139.0     0.343    254.8
2140.0     0.338    256.6
2141.0     0.333    258.4
2142.0     0.327    260.3
2143.0     0.322    262.3
2144.0     0.317    264.3
2145.0     0.312    266.4
2146.0     0.307    268.5
2147.0     0.302    270.8
2148.0     0.297    273.1
2149.0     0.292    275.5
2150.0     0.287    277.9
2151.0     0.282    280.5
2152.0     0.278    283.1
2153.0     0.273    285.8
2154.0     0.269    288.7
2155.0     0.266    291.5
2156.0     0.262    294.5
2157.0     0.259    297.5
2158.0     0.256    300.7
2159.0     0.254    303.8
2160.0     0.252    307.0
2161.0     0.251    310.3
2162.0     0.250    313.6
2163.0     0.250    316.9
2164.0     0.250    320.2
2165.0     0.251    323.5
2166.0     0.252    326.7
2167.0     0.254    330.0
2168.0     0.256    333.1
2169.0     0.259    336.2
2170.0     0.262    339.3
2171.0     0.266    342.3
2172.0     0.270    345.1
2173.0     0.274    347.9
2174.0     0.279    350.6
2175.0     0.284    353.2
2176.0     0.290    355.7
2177.0     0.296    358.1
2178.0     0.302      0.4
2179.0     0.308      2.7
2180.0     0.314      4.8
2181.0     0.321      6.9
2182.0     0.328      8.8
2183.0     0.335     10.7
2184.0     0.342     12.5
2185.0     0.349     14.2
2186.0     0.356     15.9
2187.0     0.363     17.5
2188.0     0.370     19.0
2189.0     0.378     20.5
2190.0     0.385     21.9
2191.0     0.392     23.3
2192.0     0.400     24.6
2193.0     0.407     25.9
2194.0     0.415     27.1
2195.0     0.422     28.3
2196.0     0.429     29.4
2197.0     0.437     30.5
2198.0     0.444     31.6
2199.0     0.451     32.6
2200.0     0.458     33.6
2201.0     0.466     34.6
2202.0     0.473     35.5
2203.0     0.480     36.4
2204.0     0.487     37.3
2205.0     0.494     38.2
2206.0     0.501     39.0
2207.0     0.508     39.8
2208.0     0.514     40.6
2209.0     0.521     41.4
2210.0     0.528     42.1
2211.0     0.534     42.9
2212.0     0.541     43.6
2213.0     0.547     44.3
2214.0     0.553     45.0
2215.0     0.560     45.6
2216.0     0.566     46.3
2217.0     0.572     46.9
2218.0     0.578     47.5
2219.0     0.584     48.2
2220.0     0.590     48.8
2221.0     0.596     49.3
2222.0     0.602     49.9
2223.0     0.608     50.5
2224.0     0.613     51.0
2225.0     0.619     51.6
2226.0     0.624     52.1
2227.0     0.630     52.6
2228.0     0.635     53.2
2229.0     0.640     53.7
2230.0     0.646     54.2
2231.0     0.651     54.7
2232.0     0.656     55.1
2233.0     0.661     55.6
2234.0     0.666     56.1
2235.0     0.671     56.5
2236.0     0.676     57.0
2237.0     0.680     57.5
2238.0     0.685     57.9
2239.0     0.690     58.3
2240.0     0.694     58.8
2241.0     0.699     59.2
2242.0     0.703     59.6
2243.0     0.708     60.0
2244.0     0.712     60.4
2245.0     0.716     60.8
2246.0     0.720     61.2
2247.0     0.725     61.6
2248.0     0.729     62.0
2249.0     0.733     62.4
2250.0     0.737     62.8
2251.0     0.740     63.2
2252.0     0.744     63.5
2253.0     0.748     63.9
2254.0     0.752     64.3
2255.0     0.755     64.7
2256.0     0.759     65.0
2257.0     0.763     65.4
2258.0     0.766     65.7
2259.0     0.770     66.1
2260.0     0.773     66.4
2261.0     0.776     66.8
2262.0     0.780     67.1
2263.0     0.783     67.4
2264.0     0.786     67.8
2265.0     0.789     68.1
2266.0     0.792     68.4
2267.0     0.795     68.8
2268.0     0.798     69.1
2269.0     0.801     69.4
2270.0     0.804     69.7
2271.0     0.807     70.1
2272.0     0.809     70.4
2273.0     0.812     70.7
2274.0     0.815     71.0
2275.0     0.817     71.3






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.


www.stella-vega.de