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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:24:09

Orbital Elements for STT20AB
WDS: STT20AB WDS ID/Discoverer
P: 343.000 Orbital period (years)
a: 0.704 Semi-major axis (arcseconds)
i: 129.9 Inclination (degrees)
Ω: 120.9 Longitude of ascending node (degrees)
T: 1904.000 Epoch of periastron passage (year)
e: 0.292 Eccentricity
ω: 151.2 Longitude of periastron (degrees)
Start-Year: 1854.0 Year
End-Year: 2196.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT20AB
Position: 005435.22+191118.4 Epoch-2000 right ascension and declination
WDS-ID: 00546+1911 WDS designation
Discoverer Code: STT20AB Discover designation and components
ADS number: 746 Aitken Double Star catalog
HD number: 5267 HD catalog number
Hipparcos number: 4267 Hipparcos catalog number
V1: 6.12 Magnitude of the primary
V2: 7.19 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT20AB



WDS 6th Orbit including measures of STT20AB

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


Ephemeris of STT20AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.639    169.4
-------------------------
1854.0     0.445     65.0
1855.0     0.439     63.4
1856.0     0.432     61.7
1857.0     0.425     59.9
1858.0     0.419     58.1
1859.0     0.413     56.3
1860.0     0.407     54.4
1861.0     0.401     52.4
1862.0     0.396     50.4
1863.0     0.390     48.4
1864.0     0.386     46.2
1865.0     0.381     44.1
1866.0     0.377     41.8
1867.0     0.373     39.6
1868.0     0.369     37.2
1869.0     0.366     34.9
1870.0     0.364     32.5
1871.0     0.361     30.1
1872.0     0.360     27.6
1873.0     0.358     25.1
1874.0     0.357     22.6
1875.0     0.357     20.1
1876.0     0.356     17.6
1877.0     0.357     15.1
1878.0     0.357     12.6
1879.0     0.359     10.1
1880.0     0.360      7.6
1881.0     0.362      5.2
1882.0     0.364      2.8
1883.0     0.367      0.4
1884.0     0.370    358.0
1885.0     0.373    355.7
1886.0     0.377    353.5
1887.0     0.381    351.2
1888.0     0.385    349.1
1889.0     0.389    346.9
1890.0     0.394    344.8
1891.0     0.398    342.8
1892.0     0.403    340.8
1893.0     0.408    338.9
1894.0     0.413    337.0
1895.0     0.418    335.1
1896.0     0.423    333.3
1897.0     0.428    331.6
1898.0     0.433    329.9
1899.0     0.439    328.2
1900.0     0.444    326.5
1901.0     0.449    324.9
1902.0     0.454    323.4
1903.0     0.458    321.8
1904.0     0.463    320.3
1905.0     0.468    318.9
1906.0     0.472    317.4
1907.0     0.476    316.0
1908.0     0.481    314.6
1909.0     0.485    313.2
1910.0     0.488    311.9
1911.0     0.492    310.5
1912.0     0.495    309.2
1913.0     0.499    307.9
1914.0     0.502    306.7
1915.0     0.504    305.4
1916.0     0.507    304.2
1917.0     0.509    302.9
1918.0     0.511    301.7
1919.0     0.513    300.5
1920.0     0.515    299.3
1921.0     0.517    298.1
1922.0     0.518    296.9
1923.0     0.519    295.7
1924.0     0.520    294.5
1925.0     0.521    293.3
1926.0     0.521    292.2
1927.0     0.521    291.0
1928.0     0.521    289.8
1929.0     0.521    288.6
1930.0     0.521    287.5
1931.0     0.521    286.3
1932.0     0.520    285.1
1933.0     0.519    283.9
1934.0     0.519    282.7
1935.0     0.517    281.6
1936.0     0.516    280.4
1937.0     0.515    279.2
1938.0     0.514    278.0
1939.0     0.512    276.7
1940.0     0.511    275.5
1941.0     0.509    274.3
1942.0     0.507    273.1
1943.0     0.506    271.8
1944.0     0.504    270.6
1945.0     0.502    269.3
1946.0     0.500    268.0
1947.0     0.498    266.7
1948.0     0.496    265.5
1949.0     0.494    264.2
1950.0     0.492    262.8
1951.0     0.490    261.5
1952.0     0.488    260.2
1953.0     0.486    258.8
1954.0     0.484    257.5
1955.0     0.482    256.1
1956.0     0.481    254.7
1957.0     0.479    253.4
1958.0     0.477    252.0
1959.0     0.476    250.6
1960.0     0.474    249.1
1961.0     0.473    247.7
1962.0     0.471    246.3
1963.0     0.470    244.8
1964.0     0.469    243.4
1965.0     0.468    241.9
1966.0     0.467    240.5
1967.0     0.466    239.0
1968.0     0.466    237.5
1969.0     0.465    236.1
1970.0     0.465    234.6
1971.0     0.465    233.1
1972.0     0.465    231.6
1973.0     0.465    230.2
1974.0     0.465    228.7
1975.0     0.465    227.2
1976.0     0.466    225.7
1977.0     0.467    224.3
1978.0     0.467    222.8
1979.0     0.468    221.4
1980.0     0.470    219.9
1981.0     0.471    218.5
1982.0     0.472    217.0
1983.0     0.474    215.6
1984.0     0.476    214.2
1985.0     0.478    212.8
1986.0     0.480    211.4
1987.0     0.482    210.0
1988.0     0.485    208.6
1989.0     0.487    207.3
1990.0     0.490    206.0
1991.0     0.492    204.6
1992.0     0.495    203.3
1993.0     0.498    202.0
1994.0     0.502    200.8
1995.0     0.505    199.5
1996.0     0.508    198.3
1997.0     0.512    197.0
1998.0     0.515    195.8
1999.0     0.519    194.6
2000.0     0.523    193.5
2001.0     0.527    192.3
2002.0     0.531    191.2
2003.0     0.535    190.0
2004.0     0.539    188.9
2005.0     0.543    187.8
2006.0     0.548    186.8
2007.0     0.552    185.7
2008.0     0.557    184.7
2009.0     0.561    183.6
2010.0     0.566    182.6
2011.0     0.570    181.7
2012.0     0.575    180.7
2013.0     0.580    179.7
2014.0     0.585    178.8
2015.0     0.589    177.9
2016.0     0.594    176.9
2017.0     0.599    176.0
2018.0     0.604    175.2
2019.0     0.609    174.3
2020.0     0.614    173.4
2021.0     0.619    172.6
2022.0     0.624    171.8
2023.0     0.629    171.0
2024.0     0.634    170.2
2025.0     0.639    169.4
2026.0     0.644    168.6
2027.0     0.649    167.8
2028.0     0.653    167.1
2029.0     0.658    166.3
2030.0     0.663    165.6
2031.0     0.668    164.9
2032.0     0.673    164.2
2033.0     0.678    163.5
2034.0     0.683    162.8
2035.0     0.688    162.1
2036.0     0.693    161.4
2037.0     0.698    160.8
2038.0     0.702    160.1
2039.0     0.707    159.5
2040.0     0.712    158.9
2041.0     0.716    158.2
2042.0     0.721    157.6
2043.0     0.726    157.0
2044.0     0.730    156.4
2045.0     0.735    155.8
2046.0     0.739    155.2
2047.0     0.744    154.6
2048.0     0.748    154.1
2049.0     0.752    153.5
2050.0     0.757    152.9
2051.0     0.761    152.4
2052.0     0.765    151.8
2053.0     0.769    151.3
2054.0     0.773    150.8
2055.0     0.777    150.2
2056.0     0.781    149.7
2057.0     0.785    149.2
2058.0     0.789    148.7
2059.0     0.793    148.2
2060.0     0.797    147.6
2061.0     0.800    147.1
2062.0     0.804    146.6
2063.0     0.807    146.2
2064.0     0.811    145.7
2065.0     0.814    145.2
2066.0     0.817    144.7
2067.0     0.821    144.2
2068.0     0.824    143.8
2069.0     0.827    143.3
2070.0     0.830    142.8
2071.0     0.833    142.4
2072.0     0.836    141.9
2073.0     0.839    141.5
2074.0     0.841    141.0
2075.0     0.844    140.5
2076.0     0.846    140.1
2077.0     0.849    139.7
2078.0     0.851    139.2
2079.0     0.854    138.8
2080.0     0.856    138.3
2081.0     0.858    137.9
2082.0     0.860    137.5
2083.0     0.862    137.0
2084.0     0.864    136.6
2085.0     0.866    136.2
2086.0     0.867    135.8
2087.0     0.869    135.3
2088.0     0.871    134.9
2089.0     0.872    134.5
2090.0     0.873    134.1
2091.0     0.875    133.7
2092.0     0.876    133.2
2093.0     0.877    132.8
2094.0     0.878    132.4
2095.0     0.879    132.0
2096.0     0.880    131.6
2097.0     0.880    131.2
2098.0     0.881    130.8
2099.0     0.881    130.4
2100.0     0.882    129.9
2101.0     0.882    129.5
2102.0     0.882    129.1
2103.0     0.882    128.7
2104.0     0.882    128.3
2105.0     0.882    127.9
2106.0     0.882    127.5
2107.0     0.882    127.1
2108.0     0.881    126.7
2109.0     0.881    126.2
2110.0     0.880    125.8
2111.0     0.880    125.4
2112.0     0.879    125.0
2113.0     0.878    124.6
2114.0     0.877    124.2
2115.0     0.876    123.8
2116.0     0.875    123.4
2117.0     0.873    122.9
2118.0     0.872    122.5
2119.0     0.870    122.1
2120.0     0.869    121.7
2121.0     0.867    121.2
2122.0     0.865    120.8
2123.0     0.863    120.4
2124.0     0.861    120.0
2125.0     0.859    119.5
2126.0     0.857    119.1
2127.0     0.854    118.7
2128.0     0.852    118.2
2129.0     0.849    117.8
2130.0     0.846    117.3
2131.0     0.843    116.9
2132.0     0.840    116.4
2133.0     0.837    116.0
2134.0     0.834    115.5
2135.0     0.831    115.1
2136.0     0.827    114.6
2137.0     0.824    114.1
2138.0     0.820    113.7
2139.0     0.817    113.2
2140.0     0.813    112.7
2141.0     0.809    112.2
2142.0     0.805    111.7
2143.0     0.800    111.2
2144.0     0.796    110.7
2145.0     0.792    110.2
2146.0     0.787    109.7
2147.0     0.783    109.2
2148.0     0.778    108.7
2149.0     0.773    108.1
2150.0     0.768    107.6
2151.0     0.763    107.1
2152.0     0.758    106.5
2153.0     0.752    106.0
2154.0     0.747    105.4
2155.0     0.742    104.8
2156.0     0.736    104.2
2157.0     0.730    103.6
2158.0     0.724    103.0
2159.0     0.718    102.4
2160.0     0.712    101.8
2161.0     0.706    101.2
2162.0     0.700    100.5
2163.0     0.694     99.9
2164.0     0.687     99.2
2165.0     0.681     98.5
2166.0     0.674     97.8
2167.0     0.668     97.1
2168.0     0.661     96.4
2169.0     0.654     95.6
2170.0     0.647     94.9
2171.0     0.640     94.1
2172.0     0.633     93.3
2173.0     0.626     92.5
2174.0     0.618     91.7
2175.0     0.611     90.8
2176.0     0.604     90.0
2177.0     0.596     89.1
2178.0     0.589     88.2
2179.0     0.581     87.3
2180.0     0.574     86.3
2181.0     0.566     85.3
2182.0     0.558     84.3
2183.0     0.551     83.3
2184.0     0.543     82.2
2185.0     0.535     81.1
2186.0     0.528     80.0
2187.0     0.520     78.8
2188.0     0.512     77.6
2189.0     0.504     76.4
2190.0     0.497     75.1
2191.0     0.489     73.8
2192.0     0.482     72.4
2193.0     0.474     71.0
2194.0     0.467     69.6
2195.0     0.460     68.1






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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