Double Star Calculator - Orbit

Orbital Elements for STT157
WDS: STT157 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 0.781 Semi-major axis (arcseconds)
i: 129.4 Inclination (degrees)
Ω: 137.8 Longitude of ascending node (degrees)
T: 1958.300 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 238.4 Longitude of periastron (degrees)
Start-Year: 1775.0 Year
End-Year: 2275.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT157
Position: 064747.56+002024.5 Epoch-2000 right ascension and declination
WDS-ID: 06478+0020 WDS designation
Discoverer Code: STT157 Discover designation and components
ADS number: 5455 Aitken Double Star catalog
HD number: 49294 HD catalog number
Hipparcos number: 32572 Hipparcos catalog number
V1: 7.18 Magnitude of the primary
V2: 9.16 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 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: Doc2018l Reference

Double Star Orbit for STT157



WDS 6th Orbit including measures of STT157

-- 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 STT157
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.635   155.70
--------------------------
1775.00    0.669    60.80
1776.00    0.667    60.23
1777.00    0.665    59.65
1778.00    0.663    59.07
1779.00    0.661    58.49
1780.00    0.659    57.90
1781.00    0.657    57.31
1782.00    0.655    56.72
1783.00    0.653    56.12
1784.00    0.652    55.52
1785.00    0.650    54.92
1786.00    0.648    54.31
1787.00    0.646    53.70
1788.00    0.645    53.09
1789.00    0.643    52.47
1790.00    0.641    51.85
1791.00    0.640    51.23
1792.00    0.638    50.60
1793.00    0.637    49.97
1794.00    0.635    49.34
1795.00    0.634    48.71
1796.00    0.632    48.07
1797.00    0.631    47.43
1798.00    0.629    46.78
1799.00    0.628    46.14
1800.00    0.627    45.49
1801.00    0.625    44.84
1802.00    0.624    44.18
1803.00    0.623    43.53
1804.00    0.622    42.87
1805.00    0.621    42.20
1806.00    0.619    41.54
1807.00    0.618    40.87
1808.00    0.617    40.20
1809.00    0.616    39.53
1810.00    0.615    38.86
1811.00    0.614    38.18
1812.00    0.613    37.50
1813.00    0.612    36.82
1814.00    0.612    36.14
1815.00    0.611    35.45
1816.00    0.610    34.77
1817.00    0.609    34.08
1818.00    0.608    33.39
1819.00    0.608    32.70
1820.00    0.607    32.01
1821.00    0.606    31.31
1822.00    0.606    30.62
1823.00    0.605    29.92
1824.00    0.605    29.22
1825.00    0.604    28.52
1826.00    0.604    27.82
1827.00    0.603    27.12
1828.00    0.603    26.42
1829.00    0.602    25.72
1830.00    0.602    25.01
1831.00    0.602    24.31
1832.00    0.601    23.60
1833.00    0.601    22.89
1834.00    0.601    22.19
1835.00    0.601    21.48
1836.00    0.601    20.77
1837.00    0.600    20.06
1838.00    0.600    19.35
1839.00    0.600    18.65
1840.00    0.600    17.94
1841.00    0.600    17.23
1842.00    0.600    16.52
1843.00    0.600    15.81
1844.00    0.600    15.10
1845.00    0.600    14.39
1846.00    0.600    13.68
1847.00    0.600    12.97
1848.00    0.600    12.26
1849.00    0.601    11.55
1850.00    0.601    10.85
1851.00    0.601    10.14
1852.00    0.601     9.43
1853.00    0.601     8.72
1854.00    0.601     8.02
1855.00    0.601     7.31
1856.00    0.602     6.60
1857.00    0.602     5.90
1858.00    0.602     5.19
1859.00    0.602     4.49
1860.00    0.603     3.78
1861.00    0.603     3.08
1862.00    0.603     2.38
1863.00    0.603     1.68
1864.00    0.603     0.97
1865.00    0.604     0.27
1866.00    0.604   359.57
1867.00    0.604   358.87
1868.00    0.604   358.17
1869.00    0.605   357.47
1870.00    0.605   356.77
1871.00    0.605   356.08
1872.00    0.605   355.38
1873.00    0.605   354.68
1874.00    0.605   353.98
1875.00    0.605   353.29
1876.00    0.606   352.59
1877.00    0.606   351.89
1878.00    0.606   351.20
1879.00    0.606   350.50
1880.00    0.606   349.80
1881.00    0.606   349.10
1882.00    0.605   348.41
1883.00    0.605   347.71
1884.00    0.605   347.01
1885.00    0.605   346.32
1886.00    0.605   345.62
1887.00    0.604   344.92
1888.00    0.604   344.22
1889.00    0.604   343.52
1890.00    0.603   342.82
1891.00    0.603   342.11
1892.00    0.602   341.41
1893.00    0.601   340.70
1894.00    0.601   340.00
1895.00    0.600   339.29
1896.00    0.599   338.58
1897.00    0.598   337.86
1898.00    0.597   337.15
1899.00    0.596   336.43
1900.00    0.595   335.71
1901.00    0.594   334.99
1902.00    0.593   334.26
1903.00    0.591   333.54
1904.00    0.590   332.80
1905.00    0.588   332.07
1906.00    0.587   331.33
1907.00    0.585   330.58
1908.00    0.583   329.83
1909.00    0.581   329.08
1910.00    0.579   328.32
1911.00    0.577   327.56
1912.00    0.575   326.79
1913.00    0.573   326.01
1914.00    0.570   325.23
1915.00    0.568   324.44
1916.00    0.565   323.64
1917.00    0.562   322.84
1918.00    0.559   322.03
1919.00    0.556   321.20
1920.00    0.553   320.37
1921.00    0.549   319.53
1922.00    0.546   318.68
1923.00    0.542   317.82
1924.00    0.539   316.94
1925.00    0.535   316.06
1926.00    0.531   315.16
1927.00    0.527   314.24
1928.00    0.523   313.31
1929.00    0.518   312.37
1930.00    0.514   311.41
1931.00    0.509   310.43
1932.00    0.504   309.44
1933.00    0.499   308.42
1934.00    0.494   307.39
1935.00    0.489   306.33
1936.00    0.484   305.25
1937.00    0.479   304.15
1938.00    0.473   303.02
1939.00    0.468   301.87
1940.00    0.462   300.69
1941.00    0.456   299.47
1942.00    0.450   298.23
1943.00    0.444   296.95
1944.00    0.438   295.64
1945.00    0.432   294.29
1946.00    0.426   292.90
1947.00    0.420   291.47
1948.00    0.414   290.00
1949.00    0.408   288.49
1950.00    0.401   286.93
1951.00    0.395   285.32
1952.00    0.389   283.65
1953.00    0.383   281.94
1954.00    0.377   280.17
1955.00    0.371   278.35
1956.00    0.365   276.46
1957.00    0.360   274.52
1958.00    0.354   272.52
1959.00    0.349   270.45
1960.00    0.344   268.33
1961.00    0.339   266.14
1962.00    0.335   263.89
1963.00    0.330   261.58
1964.00    0.326   259.21
1965.00    0.323   256.78
1966.00    0.320   254.31
1967.00    0.317   251.78
1968.00    0.314   249.22
1969.00    0.312   246.61
1970.00    0.311   243.98
1971.00    0.309   241.32
1972.00    0.309   238.64
1973.00    0.308   235.96
1974.00    0.309   233.27
1975.00    0.309   230.59
1976.00    0.311   227.93
1977.00    0.312   225.30
1978.00    0.314   222.69
1979.00    0.317   220.13
1980.00    0.320   217.60
1981.00    0.323   215.13
1982.00    0.327   212.71
1983.00    0.331   210.35
1984.00    0.336   208.05
1985.00    0.340   205.81
1986.00    0.346   203.64
1987.00    0.351   201.53
1988.00    0.357   199.49
1989.00    0.363   197.52
1990.00    0.369   195.61
1991.00    0.375   193.76
1992.00    0.382   191.98
1993.00    0.389   190.26
1994.00    0.396   188.60
1995.00    0.403   186.99
1996.00    0.410   185.44
1997.00    0.417   183.95
1998.00    0.425   182.51
1999.00    0.432   181.11
2000.00    0.440   179.77
2001.00    0.447   178.47
2002.00    0.455   177.21
2003.00    0.462   176.00
2004.00    0.470   174.82
2005.00    0.478   173.68
2006.00    0.485   172.58
2007.00    0.493   171.51
2008.00    0.501   170.48
2009.00    0.508   169.48
2010.00    0.516   168.50
2011.00    0.524   167.56
2012.00    0.531   166.64
2013.00    0.539   165.75
2014.00    0.546   164.88
2015.00    0.554   164.03
2016.00    0.561   163.21
2017.00    0.568   162.41
2018.00    0.576   161.63
2019.00    0.583   160.87
2020.00    0.590   160.13
2021.00    0.597   159.40
2022.00    0.604   158.69
2023.00    0.611   158.00
2024.00    0.618   157.32
2025.00    0.625   156.66
2026.00    0.632   156.02
2027.00    0.638   155.38
2028.00    0.645   154.76
2029.00    0.651   154.15
2030.00    0.658   153.56
2031.00    0.664   152.97
2032.00    0.670   152.40
2033.00    0.677   151.84
2034.00    0.683   151.28
2035.00    0.689   150.74
2036.00    0.695   150.21
2037.00    0.701   149.68
2038.00    0.706   149.16
2039.00    0.712   148.66
2040.00    0.718   148.16
2041.00    0.723   147.66
2042.00    0.729   147.18
2043.00    0.734   146.70
2044.00    0.739   146.23
2045.00    0.745   145.77
2046.00    0.750   145.31
2047.00    0.755   144.86
2048.00    0.760   144.41
2049.00    0.765   143.97
2050.00    0.770   143.54
2051.00    0.774   143.11
2052.00    0.779   142.69
2053.00    0.783   142.27
2054.00    0.788   141.85
2055.00    0.792   141.45
2056.00    0.797   141.04
2057.00    0.801   140.64
2058.00    0.805   140.24
2059.00    0.809   139.85
2060.00    0.813   139.46
2061.00    0.817   139.08
2062.00    0.821   138.70
2063.00    0.825   138.32
2064.00    0.829   137.95
2065.00    0.832   137.58
2066.00    0.836   137.21
2067.00    0.839   136.85
2068.00    0.843   136.48
2069.00    0.846   136.13
2070.00    0.849   135.77
2071.00    0.852   135.42
2072.00    0.856   135.07
2073.00    0.859   134.72
2074.00    0.862   134.37
2075.00    0.865   134.03
2076.00    0.867   133.69
2077.00    0.870   133.35
2078.00    0.873   133.02
2079.00    0.876   132.68
2080.00    0.878   132.35
2081.00    0.881   132.02
2082.00    0.883   131.69
2083.00    0.886   131.36
2084.00    0.888   131.04
2085.00    0.890   130.72
2086.00    0.892   130.39
2087.00    0.894   130.07
2088.00    0.897   129.76
2089.00    0.899   129.44
2090.00    0.900   129.12
2091.00    0.902   128.81
2092.00    0.904   128.50
2093.00    0.906   128.18
2094.00    0.908   127.87
2095.00    0.909   127.56
2096.00    0.911   127.25
2097.00    0.912   126.95
2098.00    0.914   126.64
2099.00    0.915   126.34
2100.00    0.917   126.03
2101.00    0.918   125.73
2102.00    0.919   125.42
2103.00    0.920   125.12
2104.00    0.922   124.82
2105.00    0.923   124.52
2106.00    0.924   124.22
2107.00    0.925   123.92
2108.00    0.926   123.62
2109.00    0.926   123.33
2110.00    0.927   123.03
2111.00    0.928   122.73
2112.00    0.929   122.43
2113.00    0.929   122.14
2114.00    0.930   121.84
2115.00    0.931   121.55
2116.00    0.931   121.25
2117.00    0.932   120.96
2118.00    0.932   120.66
2119.00    0.932   120.37
2120.00    0.933   120.08
2121.00    0.933   119.78
2122.00    0.933   119.49
2123.00    0.933   119.20
2124.00    0.933   118.90
2125.00    0.934   118.61
2126.00    0.934   118.32
2127.00    0.934   118.02
2128.00    0.934   117.73
2129.00    0.934   117.44
2130.00    0.933   117.14
2131.00    0.933   116.85
2132.00    0.933   116.56
2133.00    0.933   116.26
2134.00    0.932   115.97
2135.00    0.932   115.68
2136.00    0.932   115.38
2137.00    0.931   115.09
2138.00    0.931   114.79
2139.00    0.930   114.50
2140.00    0.930   114.20
2141.00    0.929   113.91
2142.00    0.929   113.61
2143.00    0.928   113.31
2144.00    0.927   113.02
2145.00    0.927   112.72
2146.00    0.926   112.42
2147.00    0.925   112.12
2148.00    0.924   111.82
2149.00    0.923   111.53
2150.00    0.923   111.23
2151.00    0.922   110.93
2152.00    0.921   110.62
2153.00    0.920   110.32
2154.00    0.919   110.02
2155.00    0.918   109.72
2156.00    0.916   109.41
2157.00    0.915   109.11
2158.00    0.914   108.80
2159.00    0.913   108.50
2160.00    0.912   108.19
2161.00    0.910   107.88
2162.00    0.909   107.57
2163.00    0.908   107.26
2164.00    0.907   106.95
2165.00    0.905   106.64
2166.00    0.904   106.33
2167.00    0.902   106.02
2168.00    0.901   105.70
2169.00    0.899   105.39
2170.00    0.898   105.07
2171.00    0.896   104.75
2172.00    0.895   104.43
2173.00    0.893   104.12
2174.00    0.892   103.79
2175.00    0.890   103.47
2176.00    0.888   103.15
2177.00    0.887   102.82
2178.00    0.885   102.50
2179.00    0.883   102.17
2180.00    0.881   101.84
2181.00    0.880   101.51
2182.00    0.878   101.18
2183.00    0.876   100.85
2184.00    0.874   100.52
2185.00    0.872   100.18
2186.00    0.870    99.85
2187.00    0.868    99.51
2188.00    0.866    99.17
2189.00    0.864    98.83
2190.00    0.862    98.48
2191.00    0.860    98.14
2192.00    0.858    97.79
2193.00    0.856    97.45
2194.00    0.854    97.10
2195.00    0.852    96.75
2196.00    0.850    96.39
2197.00    0.848    96.04
2198.00    0.846    95.68
2199.00    0.844    95.32
2200.00    0.842    94.97
2201.00    0.839    94.60
2202.00    0.837    94.24
2203.00    0.835    93.87
2204.00    0.833    93.51
2205.00    0.831    93.14
2206.00    0.828    92.77
2207.00    0.826    92.39
2208.00    0.824    92.02
2209.00    0.822    91.64
2210.00    0.819    91.26
2211.00    0.817    90.88
2212.00    0.815    90.50
2213.00    0.812    90.11
2214.00    0.810    89.72
2215.00    0.808    89.33
2216.00    0.805    88.94
2217.00    0.803    88.54
2218.00    0.801    88.15
2219.00    0.798    87.75
2220.00    0.796    87.34
2221.00    0.794    86.94
2222.00    0.791    86.53
2223.00    0.789    86.12
2224.00    0.786    85.71
2225.00    0.784    85.30
2226.00    0.782    84.88
2227.00    0.779    84.46
2228.00    0.777    84.04
2229.00    0.774    83.61
2230.00    0.772    83.19
2231.00    0.769    82.76
2232.00    0.767    82.32
2233.00    0.765    81.89
2234.00    0.762    81.45
2235.00    0.760    81.01
2236.00    0.757    80.56
2237.00    0.755    80.12
2238.00    0.752    79.67
2239.00    0.750    79.21
2240.00    0.748    78.76
2241.00    0.745    78.30
2242.00    0.743    77.84
2243.00    0.740    77.37
2244.00    0.738    76.91
2245.00    0.736    76.43
2246.00    0.733    75.96
2247.00    0.731    75.48
2248.00    0.728    75.00
2249.00    0.726    74.52
2250.00    0.724    74.03
2251.00    0.721    73.54
2252.00    0.719    73.05
2253.00    0.717    72.56
2254.00    0.714    72.06
2255.00    0.712    71.55
2256.00    0.710    71.05
2257.00    0.707    70.54
2258.00    0.705    70.03
2259.00    0.703    69.51
2260.00    0.700    68.99
2261.00    0.698    68.47
2262.00    0.696    67.94
2263.00    0.694    67.42
2264.00    0.692    66.88
2265.00    0.689    66.35
2266.00    0.687    65.81
2267.00    0.685    65.27
2268.00    0.683    64.72
2269.00    0.681    64.17
2270.00    0.679    63.62
2271.00    0.677    63.06
2272.00    0.675    62.50
2273.00    0.673    61.94
2274.00    0.671    61.37






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 15:50:55



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