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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:18:12

Orbital Elements for STT2AB
WDS: STT2AB WDS ID/Discoverer
P: 421.980 Orbital period (years)
a: 0.641 Semi-major axis (arcseconds)
i: 124.1 Inclination (degrees)
Ω: 193.0 Longitude of ascending node (degrees)
T: 1969.970 Epoch of periastron passage (year)
e: 0.72 Eccentricity
ω: 286.1 Longitude of periastron (degrees)
Start-Year: 1815.0 Year
End-Year: 2235.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT2AB
Position: 001323.93+265915.4 Epoch-2000 right ascension and declination
WDS-ID: 00134+2659 WDS designation
Discoverer Code: STT2AB Discover designation and components
ADS number: 161 Aitken Double Star catalog
HD number: 895 HD catalog number
Hipparcos number: 1076 Hipparcos catalog number
V1: 6.77 Magnitude of the primary
V2: 7.67 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2005 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT2AB



WDS 6th Orbit including measures of STT2AB

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


Ephemeris of STT2AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.432    147.8
-------------------------
1815.0     0.712     59.9
1816.0     0.713     59.6
1817.0     0.713     59.3
1818.0     0.713     59.1
1819.0     0.714     58.8
1820.0     0.714     58.5
1821.0     0.714     58.3
1822.0     0.714     58.0
1823.0     0.714     57.7
1824.0     0.714     57.5
1825.0     0.715     57.2
1826.0     0.715     56.9
1827.0     0.715     56.7
1828.0     0.715     56.4
1829.0     0.715     56.1
1830.0     0.715     55.9
1831.0     0.715     55.6
1832.0     0.715     55.3
1833.0     0.715     55.1
1834.0     0.715     54.8
1835.0     0.714     54.5
1836.0     0.714     54.3
1837.0     0.714     54.0
1838.0     0.714     53.7
1839.0     0.714     53.5
1840.0     0.713     53.2
1841.0     0.713     52.9
1842.0     0.713     52.7
1843.0     0.713     52.4
1844.0     0.712     52.1
1845.0     0.712     51.9
1846.0     0.711     51.6
1847.0     0.711     51.3
1848.0     0.710     51.0
1849.0     0.710     50.8
1850.0     0.709     50.5
1851.0     0.709     50.2
1852.0     0.708     50.0
1853.0     0.707     49.7
1854.0     0.707     49.4
1855.0     0.706     49.1
1856.0     0.705     48.9
1857.0     0.704     48.6
1858.0     0.704     48.3
1859.0     0.703     48.0
1860.0     0.702     47.8
1861.0     0.701     47.5
1862.0     0.700     47.2
1863.0     0.699     46.9
1864.0     0.698     46.7
1865.0     0.697     46.4
1866.0     0.696     46.1
1867.0     0.695     45.8
1868.0     0.693     45.5
1869.0     0.692     45.2
1870.0     0.691     45.0
1871.0     0.690     44.7
1872.0     0.688     44.4
1873.0     0.687     44.1
1874.0     0.685     43.8
1875.0     0.684     43.5
1876.0     0.682     43.2
1877.0     0.681     42.9
1878.0     0.679     42.6
1879.0     0.677     42.3
1880.0     0.676     42.0
1881.0     0.674     41.7
1882.0     0.672     41.4
1883.0     0.670     41.1
1884.0     0.668     40.8
1885.0     0.666     40.5
1886.0     0.664     40.2
1887.0     0.662     39.9
1888.0     0.660     39.6
1889.0     0.657     39.3
1890.0     0.655     39.0
1891.0     0.653     38.6
1892.0     0.650     38.3
1893.0     0.648     38.0
1894.0     0.645     37.7
1895.0     0.643     37.3
1896.0     0.640     37.0
1897.0     0.637     36.7
1898.0     0.635     36.3
1899.0     0.632     36.0
1900.0     0.629     35.7
1901.0     0.626     35.3
1902.0     0.623     35.0
1903.0     0.619     34.6
1904.0     0.616     34.2
1905.0     0.613     33.9
1906.0     0.609     33.5
1907.0     0.606     33.2
1908.0     0.602     32.8
1909.0     0.599     32.4
1910.0     0.595     32.0
1911.0     0.591     31.6
1912.0     0.587     31.2
1913.0     0.583     30.8
1914.0     0.579     30.4
1915.0     0.575     30.0
1916.0     0.570     29.6
1917.0     0.566     29.2
1918.0     0.561     28.8
1919.0     0.556     28.3
1920.0     0.551     27.9
1921.0     0.547     27.4
1922.0     0.541     27.0
1923.0     0.536     26.5
1924.0     0.531     26.0
1925.0     0.525     25.5
1926.0     0.520     25.0
1927.0     0.514     24.5
1928.0     0.508     24.0
1929.0     0.502     23.5
1930.0     0.496     22.9
1931.0     0.489     22.3
1932.0     0.483     21.8
1933.0     0.476     21.2
1934.0     0.469     20.6
1935.0     0.462     19.9
1936.0     0.454     19.3
1937.0     0.447     18.6
1938.0     0.439     17.9
1939.0     0.431     17.2
1940.0     0.423     16.4
1941.0     0.414     15.7
1942.0     0.405     14.9
1943.0     0.396     14.0
1944.0     0.387     13.1
1945.0     0.377     12.2
1946.0     0.367     11.2
1947.0     0.357     10.2
1948.0     0.347      9.1
1949.0     0.336      7.9
1950.0     0.324      6.6
1951.0     0.313      5.3
1952.0     0.301      3.8
1953.0     0.288      2.3
1954.0     0.275      0.5
1955.0     0.262    358.7
1956.0     0.249    356.6
1957.0     0.235    354.2
1958.0     0.220    351.6
1959.0     0.206    348.6
1960.0     0.191    345.1
1961.0     0.176    341.1
1962.0     0.161    336.3
1963.0     0.147    330.5
1964.0     0.134    323.6
1965.0     0.122    315.2
1966.0     0.112    305.1
1967.0     0.105    293.4
1968.0     0.102    280.6
1969.0     0.104    267.6
1970.0     0.109    255.4
1971.0     0.118    244.7
1972.0     0.129    235.7
1973.0     0.141    228.2
1974.0     0.154    221.9
1975.0     0.168    216.7
1976.0     0.181    212.2
1977.0     0.194    208.3
1978.0     0.207    204.9
1979.0     0.218    201.9
1980.0     0.230    199.1
1981.0     0.241    196.7
1982.0     0.251    194.4
1983.0     0.260    192.3
1984.0     0.269    190.4
1985.0     0.278    188.6
1986.0     0.286    186.9
1987.0     0.294    185.2
1988.0     0.301    183.7
1989.0     0.308    182.2
1990.0     0.314    180.8
1991.0     0.320    179.5
1992.0     0.326    178.2
1993.0     0.332    176.9
1994.0     0.337    175.7
1995.0     0.342    174.5
1996.0     0.347    173.3
1997.0     0.352    172.2
1998.0     0.356    171.1
1999.0     0.360    170.1
2000.0     0.364    169.0
2001.0     0.368    168.0
2002.0     0.372    167.0
2003.0     0.376    166.0
2004.0     0.379    165.1
2005.0     0.382    164.1
2006.0     0.386    163.2
2007.0     0.389    162.3
2008.0     0.392    161.4
2009.0     0.395    160.5
2010.0     0.397    159.7
2011.0     0.400    158.8
2012.0     0.403    158.0
2013.0     0.406    157.1
2014.0     0.408    156.3
2015.0     0.411    155.5
2016.0     0.413    154.7
2017.0     0.415    153.9
2018.0     0.418    153.1
2019.0     0.420    152.3
2020.0     0.422    151.6
2021.0     0.424    150.8
2022.0     0.426    150.0
2023.0     0.428    149.3
2024.0     0.430    148.6
2025.0     0.432    147.8
2026.0     0.434    147.1
2027.0     0.436    146.4
2028.0     0.438    145.7
2029.0     0.440    145.0
2030.0     0.442    144.3
2031.0     0.444    143.6
2032.0     0.446    142.9
2033.0     0.447    142.2
2034.0     0.449    141.5
2035.0     0.451    140.8
2036.0     0.453    140.2
2037.0     0.454    139.5
2038.0     0.456    138.8
2039.0     0.458    138.2
2040.0     0.460    137.5
2041.0     0.461    136.9
2042.0     0.463    136.3
2043.0     0.465    135.6
2044.0     0.466    135.0
2045.0     0.468    134.4
2046.0     0.469    133.8
2047.0     0.471    133.1
2048.0     0.473    132.5
2049.0     0.474    131.9
2050.0     0.476    131.3
2051.0     0.477    130.7
2052.0     0.479    130.1
2053.0     0.481    129.5
2054.0     0.482    128.9
2055.0     0.484    128.3
2056.0     0.485    127.8
2057.0     0.487    127.2
2058.0     0.488    126.6
2059.0     0.490    126.0
2060.0     0.491    125.5
2061.0     0.493    124.9
2062.0     0.495    124.4
2063.0     0.496    123.8
2064.0     0.498    123.2
2065.0     0.499    122.7
2066.0     0.501    122.2
2067.0     0.502    121.6
2068.0     0.504    121.1
2069.0     0.505    120.5
2070.0     0.507    120.0
2071.0     0.508    119.5
2072.0     0.510    118.9
2073.0     0.511    118.4
2074.0     0.513    117.9
2075.0     0.515    117.4
2076.0     0.516    116.9
2077.0     0.518    116.4
2078.0     0.519    115.9
2079.0     0.521    115.4
2080.0     0.522    114.9
2081.0     0.524    114.4
2082.0     0.525    113.9
2083.0     0.527    113.4
2084.0     0.528    112.9
2085.0     0.530    112.4
2086.0     0.531    111.9
2087.0     0.533    111.4
2088.0     0.535    110.9
2089.0     0.536    110.5
2090.0     0.538    110.0
2091.0     0.539    109.5
2092.0     0.541    109.1
2093.0     0.542    108.6
2094.0     0.544    108.1
2095.0     0.545    107.7
2096.0     0.547    107.2
2097.0     0.548    106.8
2098.0     0.550    106.3
2099.0     0.551    105.9
2100.0     0.553    105.4
2101.0     0.555    105.0
2102.0     0.556    104.5
2103.0     0.558    104.1
2104.0     0.559    103.6
2105.0     0.561    103.2
2106.0     0.562    102.8
2107.0     0.564    102.3
2108.0     0.565    101.9
2109.0     0.567    101.5
2110.0     0.568    101.1
2111.0     0.570    100.6
2112.0     0.572    100.2
2113.0     0.573     99.8
2114.0     0.575     99.4
2115.0     0.576     99.0
2116.0     0.578     98.6
2117.0     0.579     98.2
2118.0     0.581     97.8
2119.0     0.582     97.4
2120.0     0.584     97.0
2121.0     0.585     96.6
2122.0     0.587     96.2
2123.0     0.588     95.8
2124.0     0.590     95.4
2125.0     0.591     95.0
2126.0     0.593     94.6
2127.0     0.594     94.2
2128.0     0.596     93.8
2129.0     0.597     93.4
2130.0     0.599     93.1
2131.0     0.600     92.7
2132.0     0.602     92.3
2133.0     0.603     91.9
2134.0     0.605     91.6
2135.0     0.606     91.2
2136.0     0.608     90.8
2137.0     0.609     90.4
2138.0     0.611     90.1
2139.0     0.612     89.7
2140.0     0.614     89.3
2141.0     0.615     89.0
2142.0     0.616     88.6
2143.0     0.618     88.3
2144.0     0.619     87.9
2145.0     0.621     87.6
2146.0     0.622     87.2
2147.0     0.624     86.9
2148.0     0.625     86.5
2149.0     0.626     86.2
2150.0     0.628     85.8
2151.0     0.629     85.5
2152.0     0.631     85.1
2153.0     0.632     84.8
2154.0     0.633     84.4
2155.0     0.635     84.1
2156.0     0.636     83.8
2157.0     0.638     83.4
2158.0     0.639     83.1
2159.0     0.640     82.8
2160.0     0.642     82.4
2161.0     0.643     82.1
2162.0     0.644     81.8
2163.0     0.646     81.4
2164.0     0.647     81.1
2165.0     0.648     80.8
2166.0     0.650     80.5
2167.0     0.651     80.1
2168.0     0.652     79.8
2169.0     0.653     79.5
2170.0     0.655     79.2
2171.0     0.656     78.9
2172.0     0.657     78.5
2173.0     0.658     78.2
2174.0     0.660     77.9
2175.0     0.661     77.6
2176.0     0.662     77.3
2177.0     0.663     77.0
2178.0     0.664     76.7
2179.0     0.666     76.4
2180.0     0.667     76.1
2181.0     0.668     75.7
2182.0     0.669     75.4
2183.0     0.670     75.1
2184.0     0.671     74.8
2185.0     0.673     74.5
2186.0     0.674     74.2
2187.0     0.675     73.9
2188.0     0.676     73.6
2189.0     0.677     73.3
2190.0     0.678     73.0
2191.0     0.679     72.7
2192.0     0.680     72.4
2193.0     0.681     72.2
2194.0     0.682     71.9
2195.0     0.683     71.6
2196.0     0.684     71.3
2197.0     0.685     71.0
2198.0     0.686     70.7
2199.0     0.687     70.4
2200.0     0.688     70.1
2201.0     0.689     69.8
2202.0     0.690     69.5
2203.0     0.691     69.3
2204.0     0.692     69.0
2205.0     0.693     68.7
2206.0     0.693     68.4
2207.0     0.694     68.1
2208.0     0.695     67.8
2209.0     0.696     67.6
2210.0     0.697     67.3
2211.0     0.698     67.0
2212.0     0.698     66.7
2213.0     0.699     66.4
2214.0     0.700     66.2
2215.0     0.701     65.9
2216.0     0.701     65.6
2217.0     0.702     65.3
2218.0     0.703     65.0
2219.0     0.703     64.8
2220.0     0.704     64.5
2221.0     0.705     64.2
2222.0     0.705     63.9
2223.0     0.706     63.7
2224.0     0.706     63.4
2225.0     0.707     63.1
2226.0     0.708     62.8
2227.0     0.708     62.6
2228.0     0.709     62.3
2229.0     0.709     62.0
2230.0     0.710     61.8
2231.0     0.710     61.5
2232.0     0.710     61.2
2233.0     0.711     61.0
2234.0     0.711     60.7






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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