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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:46:27

Orbital Elements for STF1338AB
WDS: STF1338AB WDS ID/Discoverer
P: 381.500 Orbital period (years)
a: 1.48 Semi-major axis (arcseconds)
i: 29.8 Inclination (degrees)
Ω: 164.4 Longitude of ascending node (degrees)
T: 2001.400 Epoch of periastron passage (year)
e: 0.202 Eccentricity
ω: 120.4 Longitude of periastron (degrees)
Start-Year: 1835.0 Year
End-Year: 2215.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1338AB
Position: 092059.40+381117.9 Epoch-2000 right ascension and declination
WDS-ID: 09210+3811 WDS designation
Discoverer Code: STF1338AB Discover designation and components
ADS number: 7307 Aitken Double Star catalog
HD number: 80441 HD catalog number
Hipparcos number: 45858 Hipparcos catalog number
V1: 6.72 Magnitude of the primary
V2: 7.08 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1338AB



WDS 6th Orbit including measures of STF1338AB

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


Ephemeris of STF1338AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.186    321.5
-------------------------
1835.0     1.654    124.5
1836.0     1.656    125.2
1837.0     1.657    125.8
1838.0     1.658    126.4
1839.0     1.659    127.1
1840.0     1.660    127.7
1841.0     1.661    128.3
1842.0     1.662    129.0
1843.0     1.663    129.6
1844.0     1.664    130.2
1845.0     1.665    130.9
1846.0     1.665    131.5
1847.0     1.666    132.2
1848.0     1.667    132.8
1849.0     1.667    133.4
1850.0     1.667    134.0
1851.0     1.668    134.7
1852.0     1.668    135.3
1853.0     1.668    135.9
1854.0     1.668    136.6
1855.0     1.668    137.2
1856.0     1.668    137.8
1857.0     1.668    138.5
1858.0     1.668    139.1
1859.0     1.667    139.7
1860.0     1.667    140.4
1861.0     1.666    141.0
1862.0     1.666    141.6
1863.0     1.665    142.3
1864.0     1.664    142.9
1865.0     1.663    143.5
1866.0     1.662    144.2
1867.0     1.661    144.8
1868.0     1.660    145.4
1869.0     1.659    146.1
1870.0     1.657    146.7
1871.0     1.656    147.4
1872.0     1.654    148.0
1873.0     1.652    148.6
1874.0     1.651    149.3
1875.0     1.649    149.9
1876.0     1.647    150.6
1877.0     1.645    151.2
1878.0     1.642    151.9
1879.0     1.640    152.5
1880.0     1.638    153.2
1881.0     1.635    153.8
1882.0     1.632    154.5
1883.0     1.630    155.2
1884.0     1.627    155.8
1885.0     1.624    156.5
1886.0     1.621    157.2
1887.0     1.618    157.8
1888.0     1.614    158.5
1889.0     1.611    159.2
1890.0     1.607    159.8
1891.0     1.604    160.5
1892.0     1.600    161.2
1893.0     1.596    161.9
1894.0     1.592    162.6
1895.0     1.588    163.3
1896.0     1.584    164.0
1897.0     1.579    164.7
1898.0     1.575    165.4
1899.0     1.570    166.1
1900.0     1.566    166.8
1901.0     1.561    167.5
1902.0     1.556    168.3
1903.0     1.551    169.0
1904.0     1.546    169.7
1905.0     1.541    170.5
1906.0     1.535    171.2
1907.0     1.530    172.0
1908.0     1.524    172.7
1909.0     1.519    173.5
1910.0     1.513    174.2
1911.0     1.507    175.0
1912.0     1.501    175.8
1913.0     1.495    176.6
1914.0     1.489    177.3
1915.0     1.482    178.1
1916.0     1.476    178.9
1917.0     1.470    179.8
1918.0     1.463    180.6
1919.0     1.456    181.4
1920.0     1.449    182.2
1921.0     1.443    183.1
1922.0     1.436    183.9
1923.0     1.429    184.8
1924.0     1.421    185.6
1925.0     1.414    186.5
1926.0     1.407    187.4
1927.0     1.399    188.3
1928.0     1.392    189.2
1929.0     1.385    190.1
1930.0     1.377    191.0
1931.0     1.369    192.0
1932.0     1.362    192.9
1933.0     1.354    193.8
1934.0     1.346    194.8
1935.0     1.338    195.8
1936.0     1.330    196.8
1937.0     1.322    197.8
1938.0     1.314    198.8
1939.0     1.306    199.8
1940.0     1.298    200.8
1941.0     1.290    201.9
1942.0     1.282    203.0
1943.0     1.274    204.0
1944.0     1.266    205.1
1945.0     1.258    206.2
1946.0     1.250    207.3
1947.0     1.242    208.5
1948.0     1.235    209.6
1949.0     1.227    210.8
1950.0     1.219    211.9
1951.0     1.211    213.1
1952.0     1.203    214.3
1953.0     1.196    215.6
1954.0     1.188    216.8
1955.0     1.181    218.1
1956.0     1.173    219.3
1957.0     1.166    220.6
1958.0     1.159    221.9
1959.0     1.152    223.2
1960.0     1.145    224.6
1961.0     1.138    225.9
1962.0     1.132    227.3
1963.0     1.125    228.6
1964.0     1.119    230.0
1965.0     1.113    231.4
1966.0     1.107    232.9
1967.0     1.101    234.3
1968.0     1.096    235.8
1969.0     1.091    237.2
1970.0     1.086    238.7
1971.0     1.081    240.2
1972.0     1.076    241.7
1973.0     1.072    243.3
1974.0     1.068    244.8
1975.0     1.064    246.3
1976.0     1.061    247.9
1977.0     1.057    249.5
1978.0     1.054    251.0
1979.0     1.052    252.6
1980.0     1.049    254.2
1981.0     1.047    255.8
1982.0     1.045    257.4
1983.0     1.044    259.0
1984.0     1.043    260.6
1985.0     1.042    262.3
1986.0     1.041    263.9
1987.0     1.041    265.5
1988.0     1.041    267.1
1989.0     1.041    268.7
1990.0     1.042    270.4
1991.0     1.043    272.0
1992.0     1.044    273.6
1993.0     1.045    275.2
1994.0     1.047    276.8
1995.0     1.049    278.4
1996.0     1.051    280.0
1997.0     1.053    281.6
1998.0     1.056    283.2
1999.0     1.059    284.7
2000.0     1.062    286.3
2001.0     1.066    287.8
2002.0     1.069    289.4
2003.0     1.073    290.9
2004.0     1.077    292.4
2005.0     1.081    293.9
2006.0     1.085    295.4
2007.0     1.090    296.9
2008.0     1.095    298.4
2009.0     1.099    299.9
2010.0     1.104    301.3
2011.0     1.109    302.7
2012.0     1.114    304.2
2013.0     1.120    305.6
2014.0     1.125    307.0
2015.0     1.130    308.3
2016.0     1.136    309.7
2017.0     1.141    311.1
2018.0     1.147    312.4
2019.0     1.152    313.7
2020.0     1.158    315.1
2021.0     1.163    316.4
2022.0     1.169    317.7
2023.0     1.175    318.9
2024.0     1.180    320.2
2025.0     1.186    321.5
2026.0     1.192    322.7
2027.0     1.197    323.9
2028.0     1.203    325.2
2029.0     1.208    326.4
2030.0     1.214    327.6
2031.0     1.219    328.7
2032.0     1.224    329.9
2033.0     1.230    331.1
2034.0     1.235    332.2
2035.0     1.240    333.4
2036.0     1.245    334.5
2037.0     1.250    335.7
2038.0     1.255    336.8
2039.0     1.260    337.9
2040.0     1.265    339.0
2041.0     1.270    340.1
2042.0     1.274    341.2
2043.0     1.279    342.2
2044.0     1.283    343.3
2045.0     1.288    344.4
2046.0     1.292    345.4
2047.0     1.296    346.5
2048.0     1.300    347.5
2049.0     1.304    348.6
2050.0     1.308    349.6
2051.0     1.312    350.6
2052.0     1.316    351.6
2053.0     1.320    352.6
2054.0     1.323    353.6
2055.0     1.327    354.6
2056.0     1.330    355.6
2057.0     1.333    356.6
2058.0     1.337    357.6
2059.0     1.340    358.6
2060.0     1.343    359.6
2061.0     1.346      0.6
2062.0     1.349      1.5
2063.0     1.351      2.5
2064.0     1.354      3.4
2065.0     1.357      4.4
2066.0     1.359      5.4
2067.0     1.362      6.3
2068.0     1.364      7.2
2069.0     1.366      8.2
2070.0     1.369      9.1
2071.0     1.371     10.1
2072.0     1.373     11.0
2073.0     1.375     11.9
2074.0     1.377     12.9
2075.0     1.379     13.8
2076.0     1.381     14.7
2077.0     1.383     15.6
2078.0     1.385     16.5
2079.0     1.387     17.5
2080.0     1.388     18.4
2081.0     1.390     19.3
2082.0     1.392     20.2
2083.0     1.393     21.1
2084.0     1.395     22.0
2085.0     1.396     22.9
2086.0     1.398     23.8
2087.0     1.399     24.7
2088.0     1.401     25.6
2089.0     1.402     26.5
2090.0     1.404     27.4
2091.0     1.405     28.3
2092.0     1.406     29.2
2093.0     1.408     30.0
2094.0     1.409     30.9
2095.0     1.410     31.8
2096.0     1.412     32.7
2097.0     1.413     33.6
2098.0     1.414     34.5
2099.0     1.415     35.3
2100.0     1.417     36.2
2101.0     1.418     37.1
2102.0     1.419     38.0
2103.0     1.421     38.8
2104.0     1.422     39.7
2105.0     1.423     40.6
2106.0     1.424     41.4
2107.0     1.426     42.3
2108.0     1.427     43.2
2109.0     1.428     44.0
2110.0     1.430     44.9
2111.0     1.431     45.7
2112.0     1.432     46.6
2113.0     1.434     47.5
2114.0     1.435     48.3
2115.0     1.437     49.2
2116.0     1.438     50.0
2117.0     1.439     50.9
2118.0     1.441     51.7
2119.0     1.442     52.6
2120.0     1.444     53.4
2121.0     1.445     54.2
2122.0     1.447     55.1
2123.0     1.449     55.9
2124.0     1.450     56.8
2125.0     1.452     57.6
2126.0     1.454     58.4
2127.0     1.455     59.2
2128.0     1.457     60.1
2129.0     1.459     60.9
2130.0     1.460     61.7
2131.0     1.462     62.6
2132.0     1.464     63.4
2133.0     1.466     64.2
2134.0     1.468     65.0
2135.0     1.470     65.8
2136.0     1.472     66.6
2137.0     1.474     67.4
2138.0     1.476     68.3
2139.0     1.478     69.1
2140.0     1.480     69.9
2141.0     1.482     70.7
2142.0     1.484     71.5
2143.0     1.486     72.3
2144.0     1.488     73.1
2145.0     1.490     73.8
2146.0     1.492     74.6
2147.0     1.495     75.4
2148.0     1.497     76.2
2149.0     1.499     77.0
2150.0     1.502     77.8
2151.0     1.504     78.5
2152.0     1.506     79.3
2153.0     1.509     80.1
2154.0     1.511     80.9
2155.0     1.513     81.6
2156.0     1.516     82.4
2157.0     1.518     83.2
2158.0     1.521     83.9
2159.0     1.523     84.7
2160.0     1.526     85.4
2161.0     1.528     86.2
2162.0     1.531     86.9
2163.0     1.533     87.7
2164.0     1.536     88.4
2165.0     1.538     89.2
2166.0     1.541     89.9
2167.0     1.543     90.7
2168.0     1.546     91.4
2169.0     1.549     92.1
2170.0     1.551     92.9
2171.0     1.554     93.6
2172.0     1.556     94.3
2173.0     1.559     95.0
2174.0     1.562     95.8
2175.0     1.564     96.5
2176.0     1.567     97.2
2177.0     1.569     97.9
2178.0     1.572     98.6
2179.0     1.574     99.3
2180.0     1.577    100.0
2181.0     1.580    100.7
2182.0     1.582    101.5
2183.0     1.585    102.2
2184.0     1.587    102.9
2185.0     1.590    103.5
2186.0     1.592    104.2
2187.0     1.595    104.9
2188.0     1.597    105.6
2189.0     1.600    106.3
2190.0     1.602    107.0
2191.0     1.604    107.7
2192.0     1.607    108.4
2193.0     1.609    109.0
2194.0     1.612    109.7
2195.0     1.614    110.4
2196.0     1.616    111.1
2197.0     1.618    111.7
2198.0     1.621    112.4
2199.0     1.623    113.1
2200.0     1.625    113.7
2201.0     1.627    114.4
2202.0     1.629    115.1
2203.0     1.631    115.7
2204.0     1.633    116.4
2205.0     1.635    117.0
2206.0     1.637    117.7
2207.0     1.639    118.4
2208.0     1.641    119.0
2209.0     1.643    119.7
2210.0     1.644    120.3
2211.0     1.646    121.0
2212.0     1.648    121.6
2213.0     1.649    122.3
2214.0     1.651    122.9






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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