Double Star Calculator - Orbit

Orbital Elements for STT357
WDS: STT357 WDS ID/Discoverer
P: 411.100 Orbital period (years)
a: 0.511 Semi-major axis (arcseconds)
i: 124.8 Inclination (degrees)
Ω: 93.8 Longitude of ascending node (degrees)
T: 1968.324 Epoch of periastron passage (year)
e: 0.317 Eccentricity
ω: 321.9 Longitude of periastron (degrees)
Start-Year: 1819.45 Year
End-Year: 2230.55 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT357
Position: 183557.08+114342.1 Epoch-2000 right ascension and declination
WDS-ID: 18360+1144 WDS designation
Discoverer Code: STT357 Discover designation and components
ADS number: 11484 Aitken Double Star catalog
HD number: 171728 HD catalog number
Hipparcos number: 91167 Hipparcos catalog number
V1: 8.08 Magnitude of the primary
V2: 8.87 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Sca2011a Reference

Double Star Orbit for STT357



WDS 6th Orbit including measures of STT357

-- 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 STT357
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.357    61.53
--------------------------
1819.45    0.632   279.53
1820.45    0.631   279.22
1821.45    0.630   278.91
1822.45    0.630   278.60
1823.45    0.629   278.29
1824.45    0.628   277.97
1825.45    0.627   277.66
1826.45    0.626   277.34
1827.45    0.625   277.03
1828.45    0.624   276.71
1829.45    0.623   276.39
1830.45    0.622   276.07
1831.45    0.621   275.75
1832.45    0.620   275.43
1833.45    0.618   275.11
1834.45    0.617   274.78
1835.45    0.616   274.46
1836.45    0.614   274.13
1837.45    0.612   273.80
1838.45    0.611   273.47
1839.45    0.609   273.14
1840.45    0.607   272.80
1841.45    0.605   272.47
1842.45    0.604   272.13
1843.45    0.602   271.79
1844.45    0.600   271.44
1845.45    0.598   271.10
1846.45    0.595   270.75
1847.45    0.593   270.40
1848.45    0.591   270.05
1849.45    0.589   269.69
1850.45    0.586   269.33
1851.45    0.584   268.97
1852.45    0.581   268.61
1853.45    0.578   268.24
1854.45    0.576   267.87
1855.45    0.573   267.49
1856.45    0.570   267.11
1857.45    0.567   266.73
1858.45    0.564   266.34
1859.45    0.561   265.95
1860.45    0.558   265.56
1861.45    0.555   265.16
1862.45    0.552   264.75
1863.45    0.549   264.34
1864.45    0.545   263.93
1865.45    0.542   263.51
1866.45    0.538   263.09
1867.45    0.535   262.66
1868.45    0.531   262.22
1869.45    0.528   261.78
1870.45    0.524   261.33
1871.45    0.520   260.88
1872.45    0.516   260.42
1873.45    0.512   259.95
1874.45    0.508   259.47
1875.45    0.504   258.99
1876.45    0.500   258.50
1877.45    0.496   258.00
1878.45    0.491   257.49
1879.45    0.487   256.97
1880.45    0.483   256.45
1881.45    0.478   255.91
1882.45    0.474   255.37
1883.45    0.469   254.81
1884.45    0.464   254.24
1885.45    0.460   253.66
1886.45    0.455   253.07
1887.45    0.450   252.46
1888.45    0.445   251.85
1889.45    0.440   251.22
1890.45    0.435   250.57
1891.45    0.430   249.91
1892.45    0.425   249.23
1893.45    0.420   248.54
1894.45    0.415   247.83
1895.45    0.410   247.10
1896.45    0.404   246.36
1897.45    0.399   245.59
1898.45    0.394   244.80
1899.45    0.388   243.99
1900.45    0.383   243.16
1901.45    0.378   242.31
1902.45    0.372   241.42
1903.45    0.367   240.52
1904.45    0.361   239.58
1905.45    0.356   238.62
1906.45    0.350   237.62
1907.45    0.345   236.60
1908.45    0.339   235.54
1909.45    0.334   234.44
1910.45    0.328   233.31
1911.45    0.323   232.14
1912.45    0.317   230.93
1913.45    0.312   229.68
1914.45    0.306   228.38
1915.45    0.301   227.04
1916.45    0.296   225.65
1917.45    0.290   224.21
1918.45    0.285   222.72
1919.45    0.280   221.17
1920.45    0.275   219.56
1921.45    0.270   217.90
1922.45    0.266   216.18
1923.45    0.261   214.40
1924.45    0.257   212.55
1925.45    0.252   210.64
1926.45    0.248   208.67
1927.45    0.244   206.63
1928.45    0.241   204.53
1929.45    0.237   202.36
1930.45    0.234   200.13
1931.45    0.231   197.84
1932.45    0.228   195.50
1933.45    0.226   193.10
1934.45    0.224   190.65
1935.45    0.222   188.15
1936.45    0.220   185.62
1937.45    0.219   183.06
1938.45    0.218   180.47
1939.45    0.218   177.86
1940.45    0.217   175.24
1941.45    0.217   172.62
1942.45    0.218   170.01
1943.45    0.218   167.40
1944.45    0.220   164.82
1945.45    0.221   162.27
1946.45    0.223   159.75
1947.45    0.224   157.27
1948.45    0.227   154.84
1949.45    0.229   152.45
1950.45    0.232   150.12
1951.45    0.235   147.84
1952.45    0.238   145.62
1953.45    0.241   143.46
1954.45    0.245   141.36
1955.45    0.248   139.32
1956.45    0.252   137.34
1957.45    0.256   135.42
1958.45    0.260   133.56
1959.45    0.264   131.75
1960.45    0.268   130.00
1961.45    0.272   128.30
1962.45    0.276   126.65
1963.45    0.280   125.06
1964.45    0.285   123.50
1965.45    0.289   122.00
1966.45    0.293   120.54
1967.45    0.297   119.12
1968.45    0.301   117.74
1969.45    0.306   116.39
1970.45    0.310   115.08
1971.45    0.313   113.81
1972.45    0.317   112.56
1973.45    0.321   111.35
1974.45    0.325   110.16
1975.45    0.328   109.00
1976.45    0.332   107.87
1977.45    0.335   106.76
1978.45    0.339   105.67
1979.45    0.342   104.60
1980.45    0.345   103.55
1981.45    0.348   102.51
1982.45    0.350   101.50
1983.45    0.353   100.50
1984.45    0.356    99.51
1985.45    0.358    98.54
1986.45    0.360    97.58
1987.45    0.362    96.63
1988.45    0.364    95.70
1989.45    0.366    94.77
1990.45    0.368    93.85
1991.45    0.369    92.94
1992.45    0.371    92.03
1993.45    0.372    91.14
1994.45    0.373    90.24
1995.45    0.374    89.36
1996.45    0.375    88.48
1997.45    0.376    87.60
1998.45    0.376    86.72
1999.45    0.377    85.85
2000.45    0.377    84.98
2001.45    0.378    84.11
2002.45    0.378    83.25
2003.45    0.378    82.38
2004.45    0.378    81.51
2005.45    0.378    80.64
2006.45    0.377    79.78
2007.45    0.377    78.91
2008.45    0.377    78.03
2009.45    0.376    77.16
2010.45    0.375    76.28
2011.45    0.375    75.40
2012.45    0.374    74.52
2013.45    0.373    73.63
2014.45    0.372    72.74
2015.45    0.371    71.84
2016.45    0.370    70.94
2017.45    0.369    70.04
2018.45    0.368    69.12
2019.45    0.366    68.20
2020.45    0.365    67.28
2021.45    0.364    66.35
2022.45    0.362    65.41
2023.45    0.361    64.46
2024.45    0.360    63.51
2025.45    0.358    62.55
2026.45    0.357    61.58
2027.45    0.355    60.60
2028.45    0.354    59.62
2029.45    0.352    58.63
2030.45    0.351    57.62
2031.45    0.349    56.61
2032.45    0.348    55.59
2033.45    0.346    54.56
2034.45    0.344    53.52
2035.45    0.343    52.48
2036.45    0.341    51.42
2037.45    0.340    50.35
2038.45    0.338    49.28
2039.45    0.337    48.19
2040.45    0.336    47.10
2041.45    0.334    45.99
2042.45    0.333    44.88
2043.45    0.332    43.76
2044.45    0.330    42.63
2045.45    0.329    41.49
2046.45    0.328    40.34
2047.45    0.327    39.19
2048.45    0.326    38.03
2049.45    0.325    36.86
2050.45    0.324    35.68
2051.45    0.323    34.50
2052.45    0.322    33.31
2053.45    0.321    32.11
2054.45    0.321    30.91
2055.45    0.320    29.70
2056.45    0.319    28.49
2057.45    0.319    27.28
2058.45    0.319    26.06
2059.45    0.318    24.84
2060.45    0.318    23.62
2061.45    0.318    22.39
2062.45    0.318    21.17
2063.45    0.318    19.94
2064.45    0.318    18.72
2065.45    0.318    17.49
2066.45    0.318    16.27
2067.45    0.319    15.05
2068.45    0.319    13.84
2069.45    0.320    12.62
2070.45    0.320    11.41
2071.45    0.321    10.21
2072.45    0.322     9.01
2073.45    0.323     7.82
2074.45    0.324     6.63
2075.45    0.325     5.45
2076.45    0.326     4.28
2077.45    0.327     3.12
2078.45    0.328     1.96
2079.45    0.329     0.82
2080.45    0.331   359.68
2081.45    0.332   358.56
2082.45    0.334   357.44
2083.45    0.336   356.34
2084.45    0.337   355.24
2085.45    0.339   354.16
2086.45    0.341   353.09
2087.45    0.343   352.03
2088.45    0.345   350.98
2089.45    0.347   349.95
2090.45    0.349   348.92
2091.45    0.351   347.91
2092.45    0.353   346.92
2093.45    0.356   345.93
2094.45    0.358   344.96
2095.45    0.360   344.00
2096.45    0.363   343.05
2097.45    0.365   342.11
2098.45    0.368   341.19
2099.45    0.370   340.28
2100.45    0.373   339.39
2101.45    0.375   338.50
2102.45    0.378   337.63
2103.45    0.381   336.77
2104.45    0.384   335.92
2105.45    0.386   335.09
2106.45    0.389   334.26
2107.45    0.392   333.45
2108.45    0.395   332.65
2109.45    0.398   331.87
2110.45    0.401   331.09
2111.45    0.404   330.32
2112.45    0.407   329.57
2113.45    0.410   328.83
2114.45    0.413   328.09
2115.45    0.416   327.37
2116.45    0.419   326.66
2117.45    0.422   325.96
2118.45    0.425   325.27
2119.45    0.428   324.59
2120.45    0.431   323.92
2121.45    0.434   323.26
2122.45    0.437   322.60
2123.45    0.440   321.96
2124.45    0.443   321.33
2125.45    0.446   320.70
2126.45    0.449   320.08
2127.45    0.453   319.47
2128.45    0.456   318.87
2129.45    0.459   318.28
2130.45    0.462   317.70
2131.45    0.465   317.12
2132.45    0.468   316.55
2133.45    0.471   315.99
2134.45    0.474   315.44
2135.45    0.477   314.89
2136.45    0.480   314.35
2137.45    0.483   313.82
2138.45    0.486   313.29
2139.45    0.489   312.77
2140.45    0.492   312.26
2141.45    0.495   311.75
2142.45    0.498   311.25
2143.45    0.501   310.75
2144.45    0.504   310.27
2145.45    0.507   309.78
2146.45    0.510   309.30
2147.45    0.513   308.83
2148.45    0.516   308.36
2149.45    0.519   307.90
2150.45    0.522   307.44
2151.45    0.524   306.99
2152.45    0.527   306.54
2153.45    0.530   306.10
2154.45    0.533   305.66
2155.45    0.535   305.23
2156.45    0.538   304.80
2157.45    0.541   304.37
2158.45    0.543   303.95
2159.45    0.546   303.53
2160.45    0.549   303.12
2161.45    0.551   302.71
2162.45    0.554   302.30
2163.45    0.556   301.90
2164.45    0.559   301.50
2165.45    0.561   301.11
2166.45    0.563   300.72
2167.45    0.566   300.33
2168.45    0.568   299.94
2169.45    0.570   299.56
2170.45    0.573   299.18
2171.45    0.575   298.81
2172.45    0.577   298.43
2173.45    0.579   298.06
2174.45    0.581   297.70
2175.45    0.584   297.33
2176.45    0.586   296.97
2177.45    0.588   296.61
2178.45    0.590   296.25
2179.45    0.592   295.90
2180.45    0.593   295.55
2181.45    0.595   295.20
2182.45    0.597   294.85
2183.45    0.599   294.50
2184.45    0.601   294.16
2185.45    0.602   293.82
2186.45    0.604   293.48
2187.45    0.606   293.14
2188.45    0.607   292.80
2189.45    0.609   292.47
2190.45    0.610   292.13
2191.45    0.612   291.80
2192.45    0.613   291.47
2193.45    0.615   291.14
2194.45    0.616   290.82
2195.45    0.617   290.49
2196.45    0.619   290.17
2197.45    0.620   289.84
2198.45    0.621   289.52
2199.45    0.622   289.20
2200.45    0.623   288.88
2201.45    0.624   288.56
2202.45    0.625   288.25
2203.45    0.626   287.93
2204.45    0.627   287.61
2205.45    0.628   287.30
2206.45    0.628   286.99
2207.45    0.629   286.67
2208.45    0.630   286.36
2209.45    0.630   286.05
2210.45    0.631   285.74
2211.45    0.632   285.43
2212.45    0.632   285.12
2213.45    0.632   284.81
2214.45    0.633   284.50
2215.45    0.633   284.19
2216.45    0.633   283.88
2217.45    0.634   283.57
2218.45    0.634   283.26
2219.45    0.634   282.96
2220.45    0.634   282.65
2221.45    0.634   282.34
2222.45    0.634   282.03
2223.45    0.634   281.73
2224.45    0.634   281.42
2225.45    0.633   281.11
2226.45    0.633   280.80
2227.45    0.633   280.49
2228.45    0.633   280.18
2229.45    0.632   279.87
2230.45    0.632   279.56






Disclaimer
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 17:53:14



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