Double Star Calculator - Orbit

Orbital Elements for STT358AB
WDS: STT358AB WDS ID/Discoverer
P: 512.740 Orbital period (years)
a: 1.73008 Semi-major axis (arcseconds)
i: 129.796 Inclination (degrees)
Ω: 38.513 Longitude of ascending node (degrees)
T: 1764.720 Epoch of periastron passage (year)
e: 0.43383 Eccentricity
ω: 78.743 Longitude of periastron (degrees)
Start-Year: 1768.6298 Year
End-Year: 2281.3702 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT358AB
Position: 183553.22+165832.5 Epoch-2000 right ascension and declination
WDS-ID: 18359+1659 WDS designation
Discoverer Code: STT358AB Discover designation and components
ADS number: 11483 Aitken Double Star catalog
HD number: 171746 HD catalog number
Hipparcos number: 91159 Hipparcos catalog number
V1: 6.94 Magnitude of the primary
V2: 7.08 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 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 STT358AB



WDS 6th Orbit including measures of STT358AB

-- 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 STT358AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.619   143.30
--------------------------
1768.63    0.630   314.06
1769.63    0.630   311.01
1770.63    0.631   307.95
1771.63    0.633   304.92
1772.63    0.636   301.91
1773.63    0.641   298.94
1774.63    0.647   296.01
1775.63    0.654   293.15
1776.63    0.662   290.35
1777.63    0.671   287.62
1778.63    0.681   284.96
1779.63    0.692   282.39
1780.63    0.704   279.90
1781.63    0.716   277.50
1782.63    0.730   275.18
1783.63    0.743   272.94
1784.63    0.758   270.79
1785.63    0.773   268.72
1786.63    0.788   266.73
1787.63    0.804   264.82
1788.63    0.820   262.98
1789.63    0.837   261.22
1790.63    0.854   259.52
1791.63    0.871   257.89
1792.63    0.888   256.32
1793.63    0.905   254.81
1794.63    0.922   253.36
1795.63    0.940   251.96
1796.63    0.957   250.62
1797.63    0.974   249.32
1798.63    0.992   248.06
1799.63    1.009   246.85
1800.63    1.026   245.68
1801.63    1.043   244.55
1802.63    1.061   243.45
1803.63    1.077   242.39
1804.63    1.094   241.36
1805.63    1.111   240.37
1806.63    1.128   239.40
1807.63    1.144   238.46
1808.63    1.160   237.55
1809.63    1.176   236.66
1810.63    1.192   235.79
1811.63    1.208   234.95
1812.63    1.223   234.13
1813.63    1.238   233.33
1814.63    1.253   232.55
1815.63    1.268   231.79
1816.63    1.283   231.04
1817.63    1.297   230.31
1818.63    1.311   229.60
1819.63    1.325   228.91
1820.63    1.339   228.22
1821.63    1.352   227.55
1822.63    1.366   226.90
1823.63    1.379   226.25
1824.63    1.392   225.62
1825.63    1.404   225.00
1826.63    1.417   224.39
1827.63    1.429   223.79
1828.63    1.441   223.20
1829.63    1.453   222.63
1830.63    1.464   222.06
1831.63    1.475   221.49
1832.63    1.486   220.94
1833.63    1.497   220.40
1834.63    1.508   219.86
1835.63    1.518   219.33
1836.63    1.529   218.81
1837.63    1.539   218.29
1838.63    1.548   217.79
1839.63    1.558   217.28
1840.63    1.568   216.79
1841.63    1.577   216.30
1842.63    1.586   215.81
1843.63    1.595   215.33
1844.63    1.603   214.86
1845.63    1.612   214.39
1846.63    1.620   213.93
1847.63    1.628   213.47
1848.63    1.636   213.01
1849.63    1.644   212.56
1850.63    1.651   212.11
1851.63    1.658   211.67
1852.63    1.666   211.23
1853.63    1.673   210.80
1854.63    1.679   210.37
1855.63    1.686   209.94
1856.63    1.692   209.51
1857.63    1.699   209.09
1858.63    1.705   208.67
1859.63    1.711   208.26
1860.63    1.717   207.84
1861.63    1.722   207.43
1862.63    1.728   207.03
1863.63    1.733   206.62
1864.63    1.738   206.22
1865.63    1.744   205.82
1866.63    1.748   205.42
1867.63    1.753   205.03
1868.63    1.758   204.63
1869.63    1.762   204.24
1870.63    1.767   203.85
1871.63    1.771   203.47
1872.63    1.775   203.08
1873.63    1.779   202.70
1874.63    1.783   202.32
1875.63    1.786   201.94
1876.63    1.790   201.56
1877.63    1.793   201.18
1878.63    1.797   200.80
1879.63    1.800   200.43
1880.63    1.803   200.05
1881.63    1.806   199.68
1882.63    1.809   199.31
1883.63    1.811   198.94
1884.63    1.814   198.57
1885.63    1.816   198.20
1886.63    1.819   197.84
1887.63    1.821   197.47
1888.63    1.823   197.11
1889.63    1.825   196.74
1890.63    1.827   196.38
1891.63    1.829   196.02
1892.63    1.831   195.65
1893.63    1.832   195.29
1894.63    1.834   194.93
1895.63    1.835   194.57
1896.63    1.837   194.21
1897.63    1.838   193.85
1898.63    1.839   193.50
1899.63    1.840   193.14
1900.63    1.841   192.78
1901.63    1.842   192.42
1902.63    1.843   192.07
1903.63    1.844   191.71
1904.63    1.844   191.35
1905.63    1.845   191.00
1906.63    1.845   190.64
1907.63    1.846   190.29
1908.63    1.846   189.93
1909.63    1.846   189.57
1910.63    1.846   189.22
1911.63    1.847   188.86
1912.63    1.847   188.51
1913.63    1.847   188.15
1914.63    1.846   187.80
1915.63    1.846   187.44
1916.63    1.846   187.09
1917.63    1.846   186.73
1918.63    1.845   186.37
1919.63    1.845   186.02
1920.63    1.844   185.66
1921.63    1.844   185.31
1922.63    1.843   184.95
1923.63    1.842   184.59
1924.63    1.841   184.23
1925.63    1.841   183.88
1926.63    1.840   183.52
1927.63    1.839   183.16
1928.63    1.838   182.80
1929.63    1.837   182.44
1930.63    1.835   182.08
1931.63    1.834   181.72
1932.63    1.833   181.36
1933.63    1.832   181.00
1934.63    1.831   180.64
1935.63    1.829   180.28
1936.63    1.828   179.92
1937.63    1.826   179.55
1938.63    1.825   179.19
1939.63    1.823   178.82
1940.63    1.822   178.46
1941.63    1.820   178.09
1942.63    1.818   177.73
1943.63    1.817   177.36
1944.63    1.815   176.99
1945.63    1.813   176.63
1946.63    1.811   176.26
1947.63    1.809   175.89
1948.63    1.807   175.52
1949.63    1.805   175.14
1950.63    1.803   174.77
1951.63    1.801   174.40
1952.63    1.799   174.03
1953.63    1.797   173.65
1954.63    1.795   173.27
1955.63    1.793   172.90
1956.63    1.791   172.52
1957.63    1.789   172.14
1958.63    1.787   171.76
1959.63    1.784   171.38
1960.63    1.782   171.00
1961.63    1.780   170.62
1962.63    1.778   170.24
1963.63    1.775   169.85
1964.63    1.773   169.47
1965.63    1.770   169.08
1966.63    1.768   168.69
1967.63    1.766   168.31
1968.63    1.763   167.92
1969.63    1.761   167.53
1970.63    1.758   167.14
1971.63    1.756   166.74
1972.63    1.753   166.35
1973.63    1.751   165.95
1974.63    1.748   165.56
1975.63    1.746   165.16
1976.63    1.743   164.76
1977.63    1.741   164.36
1978.63    1.738   163.96
1979.63    1.736   163.56
1980.63    1.733   163.16
1981.63    1.730   162.75
1982.63    1.728   162.35
1983.63    1.725   161.94
1984.63    1.723   161.53
1985.63    1.720   161.13
1986.63    1.717   160.72
1987.63    1.715   160.30
1988.63    1.712   159.89
1989.63    1.710   159.48
1990.63    1.707   159.06
1991.63    1.704   158.65
1992.63    1.702   158.23
1993.63    1.699   157.81
1994.63    1.697   157.39
1995.63    1.694   156.97
1996.63    1.691   156.54
1997.63    1.689   156.12
1998.63    1.686   155.69
1999.63    1.684   155.27
2000.63    1.681   154.84
2001.63    1.678   154.41
2002.63    1.676   153.98
2003.63    1.673   153.55
2004.63    1.671   153.11
2005.63    1.668   152.68
2006.63    1.666   152.24
2007.63    1.663   151.80
2008.63    1.661   151.36
2009.63    1.658   150.92
2010.63    1.656   150.48
2011.63    1.653   150.04
2012.63    1.651   149.60
2013.63    1.648   149.15
2014.63    1.646   148.70
2015.63    1.644   148.26
2016.63    1.641   147.81
2017.63    1.639   147.36
2018.63    1.636   146.90
2019.63    1.634   146.45
2020.63    1.632   146.00
2021.63    1.630   145.54
2022.63    1.627   145.08
2023.63    1.625   144.63
2024.63    1.623   144.17
2025.63    1.621   143.71
2026.63    1.618   143.24
2027.63    1.616   142.78
2028.63    1.614   142.32
2029.63    1.612   141.85
2030.63    1.610   141.38
2031.63    1.608   140.91
2032.63    1.606   140.45
2033.63    1.604   139.97
2034.63    1.602   139.50
2035.63    1.600   139.03
2036.63    1.598   138.56
2037.63    1.596   138.08
2038.63    1.594   137.60
2039.63    1.592   137.13
2040.63    1.590   136.65
2041.63    1.589   136.17
2042.63    1.587   135.69
2043.63    1.585   135.21
2044.63    1.583   134.72
2045.63    1.582   134.24
2046.63    1.580   133.75
2047.63    1.579   133.27
2048.63    1.577   132.78
2049.63    1.575   132.29
2050.63    1.574   131.81
2051.63    1.572   131.32
2052.63    1.571   130.83
2053.63    1.570   130.33
2054.63    1.568   129.84
2055.63    1.567   129.35
2056.63    1.566   128.85
2057.63    1.564   128.36
2058.63    1.563   127.86
2059.63    1.562   127.37
2060.63    1.561   126.87
2061.63    1.559   126.37
2062.63    1.558   125.87
2063.63    1.557   125.37
2064.63    1.556   124.87
2065.63    1.555   124.37
2066.63    1.554   123.87
2067.63    1.553   123.37
2068.63    1.552   122.87
2069.63    1.552   122.36
2070.63    1.551   121.86
2071.63    1.550   121.36
2072.63    1.549   120.85
2073.63    1.548   120.35
2074.63    1.548   119.84
2075.63    1.547   119.33
2076.63    1.546   118.83
2077.63    1.546   118.32
2078.63    1.545   117.81
2079.63    1.545   117.31
2080.63    1.544   116.80
2081.63    1.544   116.29
2082.63    1.543   115.78
2083.63    1.543   115.27
2084.63    1.543   114.76
2085.63    1.542   114.25
2086.63    1.542   113.74
2087.63    1.542   113.23
2088.63    1.541   112.72
2089.63    1.541   112.21
2090.63    1.541   111.70
2091.63    1.541   111.19
2092.63    1.541   110.68
2093.63    1.541   110.17
2094.63    1.540   109.66
2095.63    1.540   109.15
2096.63    1.540   108.64
2097.63    1.540   108.13
2098.63    1.540   107.62
2099.63    1.541   107.11
2100.63    1.541   106.60
2101.63    1.541   106.09
2102.63    1.541   105.57
2103.63    1.541   105.06
2104.63    1.541   104.55
2105.63    1.541   104.04
2106.63    1.542   103.53
2107.63    1.542   103.02
2108.63    1.542   102.51
2109.63    1.542   102.00
2110.63    1.543   101.50
2111.63    1.543   100.99
2112.63    1.543   100.48
2113.63    1.544    99.97
2114.63    1.544    99.46
2115.63    1.545    98.95
2116.63    1.545    98.44
2117.63    1.545    97.94
2118.63    1.546    97.43
2119.63    1.546    96.92
2120.63    1.547    96.42
2121.63    1.547    95.91
2122.63    1.548    95.40
2123.63    1.548    94.90
2124.63    1.548    94.39
2125.63    1.549    93.89
2126.63    1.549    93.38
2127.63    1.550    92.88
2128.63    1.550    92.37
2129.63    1.551    91.87
2130.63    1.551    91.36
2131.63    1.552    90.86
2132.63    1.552    90.36
2133.63    1.553    89.86
2134.63    1.553    89.35
2135.63    1.554    88.85
2136.63    1.554    88.35
2137.63    1.555    87.85
2138.63    1.555    87.35
2139.63    1.556    86.84
2140.63    1.556    86.34
2141.63    1.556    85.84
2142.63    1.557    85.34
2143.63    1.557    84.84
2144.63    1.557    84.34
2145.63    1.558    83.84
2146.63    1.558    83.34
2147.63    1.558    82.85
2148.63    1.559    82.35
2149.63    1.559    81.85
2150.63    1.559    81.35
2151.63    1.559    80.85
2152.63    1.559    80.35
2153.63    1.559    79.85
2154.63    1.559    79.35
2155.63    1.559    78.86
2156.63    1.559    78.36
2157.63    1.559    77.86
2158.63    1.559    77.36
2159.63    1.559    76.86
2160.63    1.559    76.36
2161.63    1.559    75.87
2162.63    1.558    75.37
2163.63    1.558    74.87
2164.63    1.558    74.37
2165.63    1.557    73.87
2166.63    1.557    73.37
2167.63    1.556    72.87
2168.63    1.555    72.37
2169.63    1.555    71.87
2170.63    1.554    71.36
2171.63    1.553    70.86
2172.63    1.552    70.36
2173.63    1.551    69.86
2174.63    1.550    69.35
2175.63    1.549    68.85
2176.63    1.548    68.34
2177.63    1.546    67.83
2178.63    1.545    67.33
2179.63    1.543    66.82
2180.63    1.542    66.31
2181.63    1.540    65.80
2182.63    1.538    65.29
2183.63    1.536    64.77
2184.63    1.534    64.26
2185.63    1.532    63.75
2186.63    1.530    63.23
2187.63    1.528    62.71
2188.63    1.525    62.19
2189.63    1.523    61.67
2190.63    1.520    61.14
2191.63    1.517    60.62
2192.63    1.514    60.09
2193.63    1.511    59.56
2194.63    1.508    59.03
2195.63    1.505    58.50
2196.63    1.501    57.96
2197.63    1.498    57.42
2198.63    1.494    56.88
2199.63    1.490    56.34
2200.63    1.486    55.79
2201.63    1.482    55.24
2202.63    1.477    54.68
2203.63    1.473    54.13
2204.63    1.468    53.57
2205.63    1.463    53.00
2206.63    1.458    52.43
2207.63    1.453    51.86
2208.63    1.448    51.29
2209.63    1.442    50.71
2210.63    1.436    50.12
2211.63    1.430    49.53
2212.63    1.424    48.94
2213.63    1.418    48.34
2214.63    1.411    47.73
2215.63    1.404    47.12
2216.63    1.397    46.50
2217.63    1.390    45.88
2218.63    1.382    45.24
2219.63    1.375    44.61
2220.63    1.367    43.96
2221.63    1.358    43.31
2222.63    1.350    42.65
2223.63    1.341    41.98
2224.63    1.333    41.30
2225.63    1.323    40.61
2226.63    1.314    39.92
2227.63    1.304    39.21
2228.63    1.295    38.49
2229.63    1.284    37.76
2230.63    1.274    37.02
2231.63    1.263    36.27
2232.63    1.252    35.50
2233.63    1.241    34.72
2234.63    1.230    33.93
2235.63    1.218    33.12
2236.63    1.206    32.30
2237.63    1.194    31.45
2238.63    1.181    30.59
2239.63    1.168    29.72
2240.63    1.155    28.82
2241.63    1.142    27.90
2242.63    1.128    26.96
2243.63    1.115    26.00
2244.63    1.101    25.01
2245.63    1.086    23.99
2246.63    1.072    22.95
2247.63    1.057    21.88
2248.63    1.042    20.78
2249.63    1.027    19.65
2250.63    1.012    18.48
2251.63    0.996    17.28
2252.63    0.980    16.04
2253.63    0.965    14.76
2254.63    0.949    13.43
2255.63    0.933    12.06
2256.63    0.917    10.65
2257.63    0.901     9.18
2258.63    0.884     7.66
2259.63    0.868     6.08
2260.63    0.852     4.44
2261.63    0.837     2.74
2262.63    0.821     0.98
2263.63    0.805   359.14
2264.63    0.790   357.24
2265.63    0.775   355.26
2266.63    0.760   353.20
2267.63    0.746   351.07
2268.63    0.733   348.85
2269.63    0.720   346.55
2270.63    0.707   344.17
2271.63    0.695   341.70
2272.63    0.684   339.15
2273.63    0.674   336.53
2274.63    0.665   333.82
2275.63    0.656   331.04
2276.63    0.649   328.20
2277.63    0.643   325.29
2278.63    0.638   322.34
2279.63    0.634   319.34
2280.63    0.632   316.31






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 17:53:10



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