Double Star Calculator - Orbit

Orbital Elements for STF3105
WDS: STF3105 WDS ID/Discoverer
P: 540.000 Orbital period (years)
a: 0.635 Semi-major axis (arcseconds)
i: 127.0 Inclination (degrees)
Ω: 17.0 Longitude of ascending node (degrees)
T: 1955.000 Epoch of periastron passage (year)
e: 0.65 Eccentricity
ω: 87.0 Longitude of periastron (degrees)
Start-Year: 1755.0 Year
End-Year: 2295.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF3105
Position: 163147.95-070123.9 Epoch-2000 right ascension and declination
WDS-ID: 16318-0701 WDS designation
Discoverer Code: STF3105 Discover designation and components
ADS number: 10092 Aitken Double Star catalog
HD number: 148931 HD catalog number
Hipparcos number: 80954 Hipparcos catalog number
V1: 7.68 Magnitude of the primary
V2: 9.25 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hei1996c Reference

Double Star Orbit for STF3105



WDS 6th Orbit including measures of STF3105

-- 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 STF3105
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.536   175.33
--------------------------
1755.00    0.617    89.94
1756.00    0.617    89.61
1757.00    0.617    89.29
1758.00    0.616    88.97
1759.00    0.616    88.64
1760.00    0.616    88.32
1761.00    0.616    88.00
1762.00    0.615    87.67
1763.00    0.615    87.35
1764.00    0.615    87.02
1765.00    0.614    86.70
1766.00    0.614    86.37
1767.00    0.614    86.04
1768.00    0.614    85.72
1769.00    0.613    85.39
1770.00    0.613    85.06
1771.00    0.613    84.74
1772.00    0.612    84.41
1773.00    0.612    84.08
1774.00    0.612    83.75
1775.00    0.612    83.42
1776.00    0.611    83.10
1777.00    0.611    82.77
1778.00    0.611    82.44
1779.00    0.610    82.11
1780.00    0.610    81.78
1781.00    0.610    81.45
1782.00    0.609    81.12
1783.00    0.609    80.78
1784.00    0.609    80.45
1785.00    0.608    80.12
1786.00    0.608    79.79
1787.00    0.608    79.45
1788.00    0.607    79.12
1789.00    0.607    78.79
1790.00    0.606    78.45
1791.00    0.606    78.12
1792.00    0.606    77.78
1793.00    0.605    77.45
1794.00    0.605    77.11
1795.00    0.605    76.78
1796.00    0.604    76.44
1797.00    0.604    76.10
1798.00    0.603    75.77
1799.00    0.603    75.43
1800.00    0.602    75.09
1801.00    0.602    74.75
1802.00    0.602    74.41
1803.00    0.601    74.07
1804.00    0.601    73.73
1805.00    0.600    73.39
1806.00    0.600    73.05
1807.00    0.599    72.71
1808.00    0.599    72.36
1809.00    0.598    72.02
1810.00    0.598    71.68
1811.00    0.597    71.33
1812.00    0.597    70.99
1813.00    0.596    70.64
1814.00    0.596    70.29
1815.00    0.595    69.95
1816.00    0.594    69.60
1817.00    0.594    69.25
1818.00    0.593    68.90
1819.00    0.593    68.55
1820.00    0.592    68.20
1821.00    0.591    67.85
1822.00    0.591    67.50
1823.00    0.590    67.15
1824.00    0.590    66.79
1825.00    0.589    66.44
1826.00    0.588    66.09
1827.00    0.588    65.73
1828.00    0.587    65.37
1829.00    0.586    65.02
1830.00    0.585    64.66
1831.00    0.585    64.30
1832.00    0.584    63.94
1833.00    0.583    63.58
1834.00    0.582    63.21
1835.00    0.582    62.85
1836.00    0.581    62.49
1837.00    0.580    62.12
1838.00    0.579    61.76
1839.00    0.578    61.39
1840.00    0.577    61.02
1841.00    0.576    60.65
1842.00    0.575    60.28
1843.00    0.575    59.91
1844.00    0.574    59.54
1845.00    0.573    59.16
1846.00    0.572    58.79
1847.00    0.571    58.41
1848.00    0.570    58.03
1849.00    0.569    57.65
1850.00    0.567    57.27
1851.00    0.566    56.89
1852.00    0.565    56.50
1853.00    0.564    56.12
1854.00    0.563    55.73
1855.00    0.562    55.34
1856.00    0.560    54.95
1857.00    0.559    54.56
1858.00    0.558    54.17
1859.00    0.557    53.77
1860.00    0.555    53.37
1861.00    0.554    52.97
1862.00    0.553    52.57
1863.00    0.551    52.17
1864.00    0.550    51.76
1865.00    0.548    51.35
1866.00    0.547    50.94
1867.00    0.545    50.53
1868.00    0.544    50.12
1869.00    0.542    49.70
1870.00    0.541    49.28
1871.00    0.539    48.86
1872.00    0.537    48.43
1873.00    0.535    48.01
1874.00    0.534    47.58
1875.00    0.532    47.14
1876.00    0.530    46.71
1877.00    0.528    46.27
1878.00    0.526    45.83
1879.00    0.524    45.38
1880.00    0.522    44.93
1881.00    0.520    44.48
1882.00    0.518    44.02
1883.00    0.516    43.56
1884.00    0.514    43.10
1885.00    0.511    42.63
1886.00    0.509    42.16
1887.00    0.507    41.68
1888.00    0.504    41.20
1889.00    0.502    40.71
1890.00    0.499    40.22
1891.00    0.497    39.73
1892.00    0.494    39.22
1893.00    0.491    38.72
1894.00    0.488    38.21
1895.00    0.486    37.69
1896.00    0.483    37.16
1897.00    0.480    36.63
1898.00    0.477    36.09
1899.00    0.473    35.55
1900.00    0.470    35.00
1901.00    0.467    34.44
1902.00    0.464    33.87
1903.00    0.460    33.29
1904.00    0.456    32.71
1905.00    0.453    32.11
1906.00    0.449    31.51
1907.00    0.445    30.89
1908.00    0.441    30.27
1909.00    0.437    29.63
1910.00    0.433    28.98
1911.00    0.429    28.32
1912.00    0.425    27.64
1913.00    0.420    26.95
1914.00    0.415    26.25
1915.00    0.411    25.53
1916.00    0.406    24.79
1917.00    0.401    24.04
1918.00    0.396    23.26
1919.00    0.391    22.47
1920.00    0.385    21.65
1921.00    0.380    20.81
1922.00    0.374    19.94
1923.00    0.368    19.05
1924.00    0.362    18.13
1925.00    0.356    17.17
1926.00    0.349    16.18
1927.00    0.343    15.15
1928.00    0.336    14.09
1929.00    0.329    12.98
1930.00    0.322    11.82
1931.00    0.315    10.61
1932.00    0.307     9.34
1933.00    0.300     8.00
1934.00    0.292     6.60
1935.00    0.284     5.11
1936.00    0.276     3.54
1937.00    0.267     1.87
1938.00    0.259     0.09
1939.00    0.250   358.19
1940.00    0.241   356.15
1941.00    0.232   353.95
1942.00    0.223   351.57
1943.00    0.214   348.99
1944.00    0.205   346.18
1945.00    0.196   343.12
1946.00    0.187   339.75
1947.00    0.178   336.06
1948.00    0.170   332.00
1949.00    0.162   327.53
1950.00    0.155   322.64
1951.00    0.149   317.29
1952.00    0.143   311.49
1953.00    0.139   305.29
1954.00    0.136   298.75
1955.00    0.134   291.98
1956.00    0.134   285.12
1957.00    0.135   278.32
1958.00    0.138   271.73
1959.00    0.142   265.46
1960.00    0.147   259.58
1961.00    0.154   254.15
1962.00    0.161   249.18
1963.00    0.169   244.64
1964.00    0.177   240.52
1965.00    0.186   236.78
1966.00    0.195   233.37
1967.00    0.204   230.27
1968.00    0.213   227.44
1969.00    0.222   224.84
1970.00    0.232   222.45
1971.00    0.241   220.24
1972.00    0.250   218.20
1973.00    0.259   216.30
1974.00    0.268   214.53
1975.00    0.277   212.87
1976.00    0.285   211.31
1977.00    0.294   209.84
1978.00    0.302   208.45
1979.00    0.310   207.14
1980.00    0.318   205.89
1981.00    0.326   204.70
1982.00    0.333   203.57
1983.00    0.340   202.48
1984.00    0.348   201.45
1985.00    0.355   200.45
1986.00    0.361   199.49
1987.00    0.368   198.57
1988.00    0.375   197.67
1989.00    0.381   196.81
1990.00    0.387   195.98
1991.00    0.393   195.17
1992.00    0.399   194.39
1993.00    0.405   193.63
1994.00    0.411   192.89
1995.00    0.416   192.17
1996.00    0.421   191.47
1997.00    0.427   190.78
1998.00    0.432   190.12
1999.00    0.437   189.46
2000.00    0.441   188.83
2001.00    0.446   188.20
2002.00    0.451   187.59
2003.00    0.455   186.99
2004.00    0.460   186.41
2005.00    0.464   185.83
2006.00    0.468   185.26
2007.00    0.472   184.71
2008.00    0.476   184.16
2009.00    0.480   183.62
2010.00    0.484   183.10
2011.00    0.488   182.58
2012.00    0.492   182.06
2013.00    0.495   181.56
2014.00    0.499   181.06
2015.00    0.502   180.57
2016.00    0.505   180.08
2017.00    0.509   179.61
2018.00    0.512   179.13
2019.00    0.515   178.67
2020.00    0.518   178.21
2021.00    0.521   177.75
2022.00    0.524   177.30
2023.00    0.527   176.86
2024.00    0.530   176.41
2025.00    0.532   175.98
2026.00    0.535   175.55
2027.00    0.538   175.12
2028.00    0.540   174.70
2029.00    0.543   174.28
2030.00    0.545   173.86
2031.00    0.548   173.45
2032.00    0.550   173.04
2033.00    0.552   172.64
2034.00    0.554   172.23
2035.00    0.557   171.84
2036.00    0.559   171.44
2037.00    0.561   171.05
2038.00    0.563   170.66
2039.00    0.565   170.27
2040.00    0.567   169.89
2041.00    0.569   169.51
2042.00    0.571   169.13
2043.00    0.573   168.75
2044.00    0.574   168.38
2045.00    0.576   168.01
2046.00    0.578   167.64
2047.00    0.580   167.27
2048.00    0.581   166.91
2049.00    0.583   166.54
2050.00    0.584   166.18
2051.00    0.586   165.82
2052.00    0.588   165.47
2053.00    0.589   165.11
2054.00    0.590   164.76
2055.00    0.592   164.41
2056.00    0.593   164.06
2057.00    0.595   163.71
2058.00    0.596   163.36
2059.00    0.597   163.02
2060.00    0.599   162.67
2061.00    0.600   162.33
2062.00    0.601   161.99
2063.00    0.602   161.65
2064.00    0.603   161.31
2065.00    0.604   160.97
2066.00    0.606   160.64
2067.00    0.607   160.30
2068.00    0.608   159.97
2069.00    0.609   159.64
2070.00    0.610   159.31
2071.00    0.611   158.98
2072.00    0.612   158.65
2073.00    0.613   158.32
2074.00    0.614   157.99
2075.00    0.615   157.67
2076.00    0.615   157.34
2077.00    0.616   157.02
2078.00    0.617   156.69
2079.00    0.618   156.37
2080.00    0.619   156.05
2081.00    0.619   155.73
2082.00    0.620   155.41
2083.00    0.621   155.09
2084.00    0.622   154.77
2085.00    0.622   154.45
2086.00    0.623   154.14
2087.00    0.624   153.82
2088.00    0.624   153.50
2089.00    0.625   153.19
2090.00    0.626   152.87
2091.00    0.626   152.56
2092.00    0.627   152.25
2093.00    0.627   151.94
2094.00    0.628   151.62
2095.00    0.629   151.31
2096.00    0.629   151.00
2097.00    0.630   150.69
2098.00    0.630   150.38
2099.00    0.631   150.07
2100.00    0.631   149.76
2101.00    0.631   149.45
2102.00    0.632   149.14
2103.00    0.632   148.84
2104.00    0.633   148.53
2105.00    0.633   148.22
2106.00    0.634   147.92
2107.00    0.634   147.61
2108.00    0.634   147.30
2109.00    0.635   147.00
2110.00    0.635   146.69
2111.00    0.635   146.39
2112.00    0.636   146.08
2113.00    0.636   145.78
2114.00    0.636   145.48
2115.00    0.636   145.17
2116.00    0.637   144.87
2117.00    0.637   144.57
2118.00    0.637   144.26
2119.00    0.638   143.96
2120.00    0.638   143.66
2121.00    0.638   143.36
2122.00    0.638   143.05
2123.00    0.638   142.75
2124.00    0.639   142.45
2125.00    0.639   142.15
2126.00    0.639   141.85
2127.00    0.639   141.55
2128.00    0.639   141.25
2129.00    0.639   140.95
2130.00    0.640   140.65
2131.00    0.640   140.34
2132.00    0.640   140.04
2133.00    0.640   139.74
2134.00    0.640   139.44
2135.00    0.640   139.14
2136.00    0.640   138.84
2137.00    0.640   138.54
2138.00    0.640   138.24
2139.00    0.641   137.94
2140.00    0.641   137.65
2141.00    0.641   137.35
2142.00    0.641   137.05
2143.00    0.641   136.75
2144.00    0.641   136.45
2145.00    0.641   136.15
2146.00    0.641   135.85
2147.00    0.641   135.55
2148.00    0.641   135.25
2149.00    0.641   134.95
2150.00    0.641   134.65
2151.00    0.641   134.35
2152.00    0.641   134.05
2153.00    0.641   133.75
2154.00    0.641   133.45
2155.00    0.641   133.16
2156.00    0.641   132.86
2157.00    0.641   132.56
2158.00    0.641   132.26
2159.00    0.641   131.96
2160.00    0.641   131.66
2161.00    0.641   131.36
2162.00    0.641   131.06
2163.00    0.641   130.76
2164.00    0.641   130.46
2165.00    0.641   130.16
2166.00    0.640   129.86
2167.00    0.640   129.56
2168.00    0.640   129.26
2169.00    0.640   128.96
2170.00    0.640   128.66
2171.00    0.640   128.36
2172.00    0.640   128.06
2173.00    0.640   127.76
2174.00    0.640   127.46
2175.00    0.640   127.16
2176.00    0.640   126.86
2177.00    0.640   126.56
2178.00    0.639   126.26
2179.00    0.639   125.96
2180.00    0.639   125.66
2181.00    0.639   125.36
2182.00    0.639   125.06
2183.00    0.639   124.76
2184.00    0.639   124.45
2185.00    0.639   124.15
2186.00    0.638   123.85
2187.00    0.638   123.55
2188.00    0.638   123.25
2189.00    0.638   122.95
2190.00    0.638   122.64
2191.00    0.638   122.34
2192.00    0.638   122.04
2193.00    0.638   121.74
2194.00    0.637   121.43
2195.00    0.637   121.13
2196.00    0.637   120.83
2197.00    0.637   120.53
2198.00    0.637   120.22
2199.00    0.637   119.92
2200.00    0.636   119.62
2201.00    0.636   119.31
2202.00    0.636   119.01
2203.00    0.636   118.70
2204.00    0.636   118.40
2205.00    0.636   118.10
2206.00    0.635   117.79
2207.00    0.635   117.49
2208.00    0.635   117.18
2209.00    0.635   116.88
2210.00    0.635   116.57
2211.00    0.635   116.27
2212.00    0.634   115.96
2213.00    0.634   115.66
2214.00    0.634   115.35
2215.00    0.634   115.05
2216.00    0.634   114.74
2217.00    0.634   114.43
2218.00    0.633   114.13
2219.00    0.633   113.82
2220.00    0.633   113.51
2221.00    0.633   113.21
2222.00    0.633   112.90
2223.00    0.632   112.59
2224.00    0.632   112.28
2225.00    0.632   111.98
2226.00    0.632   111.67
2227.00    0.632   111.36
2228.00    0.632   111.05
2229.00    0.631   110.74
2230.00    0.631   110.44
2231.00    0.631   110.13
2232.00    0.631   109.82
2233.00    0.631   109.51
2234.00    0.630   109.20
2235.00    0.630   108.89
2236.00    0.630   108.58
2237.00    0.630   108.27
2238.00    0.630   107.96
2239.00    0.629   107.65
2240.00    0.629   107.34
2241.00    0.629   107.03
2242.00    0.629   106.72
2243.00    0.629   106.41
2244.00    0.628   106.10
2245.00    0.628   105.78
2246.00    0.628   105.47
2247.00    0.628   105.16
2248.00    0.628   104.85
2249.00    0.627   104.54
2250.00    0.627   104.22
2251.00    0.627   103.91
2252.00    0.627   103.60
2253.00    0.627   103.29
2254.00    0.626   102.97
2255.00    0.626   102.66
2256.00    0.626   102.35
2257.00    0.626   102.03
2258.00    0.626   101.72
2259.00    0.625   101.40
2260.00    0.625   101.09
2261.00    0.625   100.77
2262.00    0.625   100.46
2263.00    0.624   100.14
2264.00    0.624    99.83
2265.00    0.624    99.51
2266.00    0.624    99.20
2267.00    0.624    98.88
2268.00    0.623    98.56
2269.00    0.623    98.25
2270.00    0.623    97.93
2271.00    0.623    97.61
2272.00    0.623    97.30
2273.00    0.622    96.98
2274.00    0.622    96.66
2275.00    0.622    96.34
2276.00    0.622    96.03
2277.00    0.621    95.71
2278.00    0.621    95.39
2279.00    0.621    95.07
2280.00    0.621    94.75
2281.00    0.620    94.43
2282.00    0.620    94.11
2283.00    0.620    93.79
2284.00    0.620    93.47
2285.00    0.620    93.15
2286.00    0.619    92.83
2287.00    0.619    92.51
2288.00    0.619    92.19
2289.00    0.619    91.87
2290.00    0.618    91.55
2291.00    0.618    91.23
2292.00    0.618    90.91
2293.00    0.618    90.58
2294.00    0.617    90.26






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 17:29:00



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