Double Star Calculator - Orbit

Orbital Elements for STT545AB
WDS: STT545AB WDS ID/Discoverer
P: 471.636 Orbital period (years)
a: 3.67538 Semi-major axis (arcseconds)
i: 117.058 Inclination (degrees)
Ω: 86.36 Longitude of ascending node (degrees)
T: 1784.665 Epoch of periastron passage (year)
e: 0.7131 Eccentricity
ω: 301.057 Longitude of periastron (degrees)
Start-Year: 1789.1821 Year
End-Year: 2260.8179 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT545AB
Position: 055943.24+371245.9 Epoch-2000 right ascension and declination
WDS-ID: 05597+3713 WDS designation
Discoverer Code: STT545AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 40312 HD catalog number
Hipparcos number: 28380 Hipparcos catalog number
V1: 2.60 Magnitude of the primary
V2: 7.20 Magnitude of the secondary
Equinox: Equinox
Date: 2014 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STT545AB



WDS 6th Orbit including measures of STT545AB

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STT545AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    4.134   302.25
--------------------------
1789.18    0.990   101.40
1790.18    1.053    98.25
1791.18    1.114    95.45
1792.18    1.170    92.93
1793.18    1.223    90.63
1794.18    1.271    88.51
1795.18    1.316    86.55
1796.18    1.358    84.71
1797.18    1.395    82.98
1798.18    1.430    81.33
1799.18    1.461    79.76
1800.18    1.490    78.25
1801.18    1.517    76.79
1802.18    1.540    75.38
1803.18    1.562    74.02
1804.18    1.582    72.69
1805.18    1.600    71.39
1806.18    1.616    70.12
1807.18    1.631    68.87
1808.18    1.644    67.64
1809.18    1.657    66.44
1810.18    1.668    65.25
1811.18    1.678    64.07
1812.18    1.687    62.91
1813.18    1.695    61.76
1814.18    1.703    60.62
1815.18    1.710    59.49
1816.18    1.716    58.37
1817.18    1.722    57.26
1818.18    1.727    56.15
1819.18    1.732    55.05
1820.18    1.736    53.96
1821.18    1.741    52.87
1822.18    1.744    51.79
1823.18    1.748    50.71
1824.18    1.751    49.64
1825.18    1.755    48.57
1826.18    1.758    47.50
1827.18    1.761    46.44
1828.18    1.763    45.38
1829.18    1.766    44.32
1830.18    1.769    43.27
1831.18    1.772    42.22
1832.18    1.774    41.18
1833.18    1.777    40.13
1834.18    1.780    39.09
1835.18    1.783    38.06
1836.18    1.786    37.03
1837.18    1.789    36.00
1838.18    1.792    34.97
1839.18    1.796    33.95
1840.18    1.799    32.93
1841.18    1.803    31.92
1842.18    1.807    30.91
1843.18    1.810    29.90
1844.18    1.815    28.90
1845.18    1.819    27.91
1846.18    1.823    26.91
1847.18    1.828    25.93
1848.18    1.833    24.95
1849.18    1.838    23.97
1850.18    1.843    23.00
1851.18    1.849    22.03
1852.18    1.854    21.07
1853.18    1.860    20.12
1854.18    1.866    19.17
1855.18    1.873    18.23
1856.18    1.879    17.30
1857.18    1.886    16.37
1858.18    1.893    15.45
1859.18    1.900    14.54
1860.18    1.908    13.63
1861.18    1.915    12.73
1862.18    1.923    11.84
1863.18    1.931    10.95
1864.18    1.940    10.07
1865.18    1.948     9.20
1866.18    1.957     8.34
1867.18    1.966     7.49
1868.18    1.975     6.64
1869.18    1.984     5.80
1870.18    1.994     4.97
1871.18    2.004     4.14
1872.18    2.014     3.33
1873.18    2.024     2.52
1874.18    2.034     1.72
1875.18    2.045     0.93
1876.18    2.055     0.15
1877.18    2.066   359.38
1878.18    2.077   358.61
1879.18    2.089   357.85
1880.18    2.100   357.10
1881.18    2.112   356.36
1882.18    2.123   355.63
1883.18    2.135   354.90
1884.18    2.147   354.19
1885.18    2.160   353.48
1886.18    2.172   352.78
1887.18    2.185   352.08
1888.18    2.197   351.40
1889.18    2.210   350.72
1890.18    2.223   350.05
1891.18    2.236   349.39
1892.18    2.249   348.74
1893.18    2.263   348.09
1894.18    2.276   347.45
1895.18    2.290   346.82
1896.18    2.303   346.20
1897.18    2.317   345.58
1898.18    2.331   344.97
1899.18    2.345   344.37
1900.18    2.359   343.78
1901.18    2.373   343.19
1902.18    2.387   342.61
1903.18    2.402   342.04
1904.18    2.416   341.47
1905.18    2.431   340.91
1906.18    2.445   340.36
1907.18    2.460   339.81
1908.18    2.475   339.27
1909.18    2.489   338.73
1910.18    2.504   338.21
1911.18    2.519   337.69
1912.18    2.534   337.17
1913.18    2.549   336.66
1914.18    2.564   336.16
1915.18    2.579   335.66
1916.18    2.595   335.17
1917.18    2.610   334.69
1918.18    2.625   334.21
1919.18    2.640   333.73
1920.18    2.656   333.26
1921.18    2.671   332.80
1922.18    2.686   332.34
1923.18    2.702   331.89
1924.18    2.717   331.44
1925.18    2.733   331.00
1926.18    2.748   330.56
1927.18    2.764   330.13
1928.18    2.779   329.70
1929.18    2.795   329.27
1930.18    2.810   328.86
1931.18    2.826   328.44
1932.18    2.841   328.03
1933.18    2.857   327.63
1934.18    2.873   327.23
1935.18    2.888   326.83
1936.18    2.904   326.44
1937.18    2.919   326.05
1938.18    2.935   325.67
1939.18    2.950   325.29
1940.18    2.966   324.91
1941.18    2.982   324.54
1942.18    2.997   324.17
1943.18    3.013   323.81
1944.18    3.028   323.45
1945.18    3.044   323.09
1946.18    3.059   322.74
1947.18    3.075   322.39
1948.18    3.090   322.04
1949.18    3.105   321.70
1950.18    3.121   321.36
1951.18    3.136   321.02
1952.18    3.151   320.69
1953.18    3.167   320.36
1954.18    3.182   320.03
1955.18    3.197   319.71
1956.18    3.213   319.39
1957.18    3.228   319.07
1958.18    3.243   318.76
1959.18    3.258   318.45
1960.18    3.273   318.14
1961.18    3.288   317.83
1962.18    3.303   317.53
1963.18    3.318   317.23
1964.18    3.333   316.93
1965.18    3.348   316.64
1966.18    3.363   316.35
1967.18    3.377   316.06
1968.18    3.392   315.77
1969.18    3.407   315.49
1970.18    3.421   315.20
1971.18    3.436   314.92
1972.18    3.450   314.65
1973.18    3.465   314.37
1974.18    3.479   314.10
1975.18    3.494   313.83
1976.18    3.508   313.56
1977.18    3.522   313.29
1978.18    3.536   313.03
1979.18    3.550   312.77
1980.18    3.565   312.51
1981.18    3.579   312.25
1982.18    3.592   311.99
1983.18    3.606   311.74
1984.18    3.620   311.49
1985.18    3.634   311.24
1986.18    3.648   310.99
1987.18    3.661   310.74
1988.18    3.675   310.50
1989.18    3.688   310.26
1990.18    3.702   310.02
1991.18    3.715   309.78
1992.18    3.728   309.54
1993.18    3.741   309.30
1994.18    3.755   309.07
1995.18    3.768   308.84
1996.18    3.781   308.61
1997.18    3.794   308.38
1998.18    3.806   308.15
1999.18    3.819   307.92
2000.18    3.832   307.70
2001.18    3.844   307.48
2002.18    3.857   307.25
2003.18    3.869   307.03
2004.18    3.882   306.81
2005.18    3.894   306.60
2006.18    3.906   306.38
2007.18    3.918   306.17
2008.18    3.930   305.95
2009.18    3.942   305.74
2010.18    3.954   305.53
2011.18    3.966   305.32
2012.18    3.977   305.11
2013.18    3.989   304.90
2014.18    4.000   304.70
2015.18    4.012   304.49
2016.18    4.023   304.29
2017.18    4.034   304.09
2018.18    4.045   303.89
2019.18    4.057   303.69
2020.18    4.067   303.49
2021.18    4.078   303.29
2022.18    4.089   303.09
2023.18    4.100   302.89
2024.18    4.110   302.70
2025.18    4.121   302.50
2026.18    4.131   302.31
2027.18    4.141   302.12
2028.18    4.151   301.93
2029.18    4.162   301.74
2030.18    4.172   301.55
2031.18    4.181   301.36
2032.18    4.191   301.17
2033.18    4.201   300.99
2034.18    4.210   300.80
2035.18    4.220   300.61
2036.18    4.229   300.43
2037.18    4.238   300.25
2038.18    4.247   300.06
2039.18    4.256   299.88
2040.18    4.265   299.70
2041.18    4.274   299.52
2042.18    4.283   299.34
2043.18    4.291   299.16
2044.18    4.300   298.98
2045.18    4.308   298.81
2046.18    4.316   298.63
2047.18    4.324   298.45
2048.18    4.332   298.28
2049.18    4.340   298.10
2050.18    4.348   297.93
2051.18    4.356   297.76
2052.18    4.363   297.58
2053.18    4.371   297.41
2054.18    4.378   297.24
2055.18    4.385   297.07
2056.18    4.392   296.90
2057.18    4.399   296.73
2058.18    4.406   296.56
2059.18    4.412   296.39
2060.18    4.419   296.22
2061.18    4.425   296.05
2062.18    4.432   295.88
2063.18    4.438   295.72
2064.18    4.444   295.55
2065.18    4.450   295.38
2066.18    4.455   295.22
2067.18    4.461   295.05
2068.18    4.467   294.89
2069.18    4.472   294.72
2070.18    4.477   294.56
2071.18    4.482   294.39
2072.18    4.487   294.23
2073.18    4.492   294.07
2074.18    4.497   293.90
2075.18    4.501   293.74
2076.18    4.505   293.58
2077.18    4.510   293.42
2078.18    4.514   293.26
2079.18    4.518   293.09
2080.18    4.522   292.93
2081.18    4.525   292.77
2082.18    4.529   292.61
2083.18    4.532   292.45
2084.18    4.535   292.29
2085.18    4.538   292.13
2086.18    4.541   291.97
2087.18    4.544   291.81
2088.18    4.546   291.65
2089.18    4.549   291.50
2090.18    4.551   291.34
2091.18    4.553   291.18
2092.18    4.555   291.02
2093.18    4.557   290.86
2094.18    4.559   290.70
2095.18    4.560   290.54
2096.18    4.561   290.39
2097.18    4.562   290.23
2098.18    4.563   290.07
2099.18    4.564   289.91
2100.18    4.565   289.75
2101.18    4.565   289.60
2102.18    4.565   289.44
2103.18    4.566   289.28
2104.18    4.565   289.12
2105.18    4.565   288.97
2106.18    4.565   288.81
2107.18    4.564   288.65
2108.18    4.563   288.49
2109.18    4.562   288.33
2110.18    4.561   288.18
2111.18    4.560   288.02
2112.18    4.558   287.86
2113.18    4.556   287.70
2114.18    4.554   287.54
2115.18    4.552   287.38
2116.18    4.550   287.23
2117.18    4.547   287.07
2118.18    4.544   286.91
2119.18    4.541   286.75
2120.18    4.538   286.59
2121.18    4.535   286.43
2122.18    4.531   286.27
2123.18    4.528   286.11
2124.18    4.523   285.95
2125.18    4.519   285.79
2126.18    4.515   285.63
2127.18    4.510   285.46
2128.18    4.505   285.30
2129.18    4.500   285.14
2130.18    4.495   284.98
2131.18    4.489   284.82
2132.18    4.483   284.65
2133.18    4.477   284.49
2134.18    4.471   284.32
2135.18    4.465   284.16
2136.18    4.458   283.99
2137.18    4.451   283.83
2138.18    4.444   283.66
2139.18    4.436   283.50
2140.18    4.428   283.33
2141.18    4.420   283.16
2142.18    4.412   282.99
2143.18    4.403   282.82
2144.18    4.395   282.65
2145.18    4.386   282.48
2146.18    4.376   282.31
2147.18    4.367   282.14
2148.18    4.357   281.97
2149.18    4.347   281.79
2150.18    4.336   281.62
2151.18    4.325   281.44
2152.18    4.314   281.27
2153.18    4.303   281.09
2154.18    4.291   280.91
2155.18    4.279   280.73
2156.18    4.267   280.55
2157.18    4.255   280.37
2158.18    4.242   280.19
2159.18    4.228   280.00
2160.18    4.215   279.82
2161.18    4.201   279.63
2162.18    4.187   279.45
2163.18    4.172   279.26
2164.18    4.158   279.07
2165.18    4.142   278.88
2166.18    4.127   278.69
2167.18    4.111   278.49
2168.18    4.094   278.30
2169.18    4.078   278.10
2170.18    4.061   277.90
2171.18    4.043   277.70
2172.18    4.026   277.50
2173.18    4.007   277.30
2174.18    3.989   277.09
2175.18    3.970   276.88
2176.18    3.950   276.67
2177.18    3.930   276.46
2178.18    3.910   276.25
2179.18    3.889   276.03
2180.18    3.868   275.81
2181.18    3.847   275.59
2182.18    3.825   275.37
2183.18    3.802   275.14
2184.18    3.779   274.91
2185.18    3.755   274.68
2186.18    3.731   274.45
2187.18    3.707   274.21
2188.18    3.682   273.97
2189.18    3.656   273.72
2190.18    3.630   273.48
2191.18    3.604   273.22
2192.18    3.577   272.97
2193.18    3.549   272.71
2194.18    3.520   272.45
2195.18    3.492   272.18
2196.18    3.462   271.91
2197.18    3.432   271.63
2198.18    3.401   271.35
2199.18    3.370   271.06
2200.18    3.338   270.77
2201.18    3.305   270.47
2202.18    3.271   270.17
2203.18    3.237   269.86
2204.18    3.202   269.54
2205.18    3.167   269.22
2206.18    3.130   268.88
2207.18    3.093   268.54
2208.18    3.055   268.20
2209.18    3.016   267.84
2210.18    2.977   267.47
2211.18    2.936   267.10
2212.18    2.895   266.71
2213.18    2.853   266.31
2214.18    2.809   265.90
2215.18    2.765   265.48
2216.18    2.720   265.04
2217.18    2.674   264.59
2218.18    2.626   264.12
2219.18    2.578   263.64
2220.18    2.529   263.13
2221.18    2.478   262.61
2222.18    2.426   262.06
2223.18    2.373   261.49
2224.18    2.319   260.89
2225.18    2.263   260.26
2226.18    2.206   259.61
2227.18    2.148   258.91
2228.18    2.088   258.18
2229.18    2.027   257.40
2230.18    1.964   256.58
2231.18    1.900   255.70
2232.18    1.835   254.75
2233.18    1.767   253.74
2234.18    1.698   252.64
2235.18    1.628   251.45
2236.18    1.556   250.16
2237.18    1.482   248.73
2238.18    1.407   247.15
2239.18    1.330   245.40
2240.18    1.252   243.43
2241.18    1.173   241.19
2242.18    1.093   238.63
2243.18    1.013   235.66
2244.18    0.933   232.18
2245.18    0.853   228.04
2246.18    0.776   223.08
2247.18    0.703   217.05
2248.18    0.637   209.69
2249.18    0.580   200.76
2250.18    0.537   190.14
2251.18    0.512   178.10
2252.18    0.508   165.37
2253.18    0.526   152.98
2254.18    0.562   141.81
2255.18    0.613   132.24
2256.18    0.674   124.27
2257.18    0.741   117.68
2258.18    0.810   112.20
2259.18    0.879   107.58
2260.18    0.947   103.63






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This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 15:42:29



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