Double Star Calculator - Orbit

Orbital Elements for STF60AB
WDS: STF60AB WDS ID/Discoverer
P: 479.270 Orbital period (years)
a: 12.04 Semi-major axis (arcseconds)
i: 35.6 Inclination (degrees)
Ω: 278.0 Longitude of ascending node (degrees)
T: 1889.930 Epoch of periastron passage (year)
e: 0.497 Eccentricity
ω: 269.8 Longitude of periastron (degrees)
Start-Year: 1785.365 Year
End-Year: 2264.635 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF60AB
Position: 004906.29+574854.7 Epoch-2000 right ascension and declination
WDS-ID: 00491+5749 WDS designation
Discoverer Code: STF60AB Discover designation and components
ADS number: 671 Aitken Double Star catalog
HD number: 4614 HD catalog number
Hipparcos number: 3821 Hipparcos catalog number
V1: 3.52 Magnitude of the primary
V2: 7.36 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 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: Sca2015c Reference

Double Star Orbit for STF60AB



WDS 6th Orbit including measures of STF60AB

-- 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 STF60AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   13.570   329.06
--------------------------
1785.37   12.560    60.88
1786.37   12.521    61.36
1787.37   12.481    61.86
1788.37   12.441    62.35
1789.37   12.400    62.85
1790.37   12.359    63.35
1791.37   12.317    63.86
1792.37   12.274    64.36
1793.37   12.231    64.88
1794.37   12.187    65.39
1795.37   12.143    65.91
1796.37   12.097    66.43
1797.37   12.052    66.96
1798.37   12.005    67.49
1799.37   11.958    68.03
1800.37   11.910    68.57
1801.37   11.861    69.11
1802.37   11.812    69.66
1803.37   11.762    70.21
1804.37   11.711    70.77
1805.37   11.660    71.33
1806.37   11.607    71.90
1807.37   11.554    72.47
1808.37   11.500    73.05
1809.37   11.445    73.63
1810.37   11.390    74.22
1811.37   11.333    74.82
1812.37   11.276    75.42
1813.37   11.218    76.03
1814.37   11.159    76.64
1815.37   11.099    77.26
1816.37   11.039    77.89
1817.37   10.977    78.52
1818.37   10.914    79.16
1819.37   10.851    79.81
1820.37   10.786    80.47
1821.37   10.721    81.13
1822.37   10.654    81.80
1823.37   10.587    82.49
1824.37   10.518    83.18
1825.37   10.449    83.87
1826.37   10.378    84.58
1827.37   10.307    85.30
1828.37   10.234    86.03
1829.37   10.160    86.77
1830.37   10.085    87.52
1831.37   10.009    88.28
1832.37    9.932    89.05
1833.37    9.853    89.84
1834.37    9.774    90.64
1835.37    9.693    91.45
1836.37    9.611    92.27
1837.37    9.528    93.11
1838.37    9.444    93.96
1839.37    9.359    94.83
1840.37    9.272    95.72
1841.37    9.184    96.62
1842.37    9.095    97.54
1843.37    9.004    98.48
1844.37    8.913    99.44
1845.37    8.820   100.41
1846.37    8.726   101.41
1847.37    8.630   102.43
1848.37    8.534   103.47
1849.37    8.436   104.54
1850.37    8.337   105.63
1851.37    8.237   106.75
1852.37    8.136   107.90
1853.37    8.034   109.07
1854.37    7.930   110.28
1855.37    7.826   111.52
1856.37    7.721   112.79
1857.37    7.614   114.10
1858.37    7.507   115.44
1859.37    7.400   116.82
1860.37    7.291   118.25
1861.37    7.182   119.71
1862.37    7.073   121.23
1863.37    6.964   122.79
1864.37    6.854   124.40
1865.37    6.744   126.06
1866.37    6.635   127.77
1867.37    6.526   129.55
1868.37    6.418   131.38
1869.37    6.311   133.28
1870.37    6.205   135.24
1871.37    6.100   137.27
1872.37    5.998   139.37
1873.37    5.897   141.54
1874.37    5.799   143.79
1875.37    5.704   146.11
1876.37    5.612   148.51
1877.37    5.525   150.99
1878.37    5.441   153.55
1879.37    5.362   156.18
1880.37    5.288   158.89
1881.37    5.220   161.67
1882.37    5.158   164.53
1883.37    5.102   167.45
1884.37    5.054   170.43
1885.37    5.012   173.46
1886.37    4.979   176.54
1887.37    4.953   179.66
1888.37    4.935   182.80
1889.37    4.926   185.96
1890.37    4.925   189.13
1891.37    4.932   192.30
1892.37    4.948   195.44
1893.37    4.972   198.57
1894.37    5.004   201.66
1895.37    5.044   204.70
1896.37    5.091   207.69
1897.37    5.145   210.63
1898.37    5.206   213.50
1899.37    5.273   216.30
1900.37    5.345   219.02
1901.37    5.423   221.67
1902.37    5.506   224.25
1903.37    5.593   226.74
1904.37    5.684   229.16
1905.37    5.778   231.50
1906.37    5.876   233.76
1907.37    5.976   235.95
1908.37    6.078   238.07
1909.37    6.182   240.11
1910.37    6.288   242.09
1911.37    6.396   244.00
1912.37    6.504   245.84
1913.37    6.613   247.63
1914.37    6.722   249.36
1915.37    6.832   251.03
1916.37    6.942   252.65
1917.37    7.051   254.22
1918.37    7.161   255.74
1919.37    7.270   257.22
1920.37    7.379   258.65
1921.37    7.487   260.04
1922.37    7.595   261.39
1923.37    7.701   262.71
1924.37    7.807   263.98
1925.37    7.912   265.23
1926.37    8.016   266.44
1927.37    8.118   267.62
1928.37    8.220   268.77
1929.37    8.321   269.89
1930.37    8.420   270.99
1931.37    8.519   272.06
1932.37    8.616   273.11
1933.37    8.712   274.13
1934.37    8.806   275.13
1935.37    8.900   276.11
1936.37    8.992   277.07
1937.37    9.083   278.01
1938.37    9.173   278.94
1939.37    9.261   279.84
1940.37    9.349   280.73
1941.37    9.435   281.60
1942.37    9.520   282.45
1943.37    9.603   283.29
1944.37    9.686   284.12
1945.37    9.767   284.93
1946.37    9.847   285.73
1947.37    9.926   286.52
1948.37   10.004   287.29
1949.37   10.080   288.05
1950.37   10.156   288.80
1951.37   10.230   289.54
1952.37   10.303   290.27
1953.37   10.376   290.99
1954.37   10.447   291.70
1955.37   10.517   292.40
1956.37   10.586   293.09
1957.37   10.654   293.77
1958.37   10.721   294.44
1959.37   10.787   295.11
1960.37   10.852   295.76
1961.37   10.916   296.41
1962.37   10.979   297.05
1963.37   11.041   297.69
1964.37   11.102   298.31
1965.37   11.162   298.93
1966.37   11.222   299.55
1967.37   11.280   300.15
1968.37   11.338   300.75
1969.37   11.395   301.35
1970.37   11.451   301.94
1971.37   11.506   302.52
1972.37   11.560   303.10
1973.37   11.614   303.67
1974.37   11.666   304.24
1975.37   11.718   304.80
1976.37   11.769   305.36
1977.37   11.820   305.91
1978.37   11.869   306.46
1979.37   11.918   307.00
1980.37   11.967   307.54
1981.37   12.014   308.07
1982.37   12.061   308.60
1983.37   12.107   309.13
1984.37   12.153   309.65
1985.37   12.197   310.17
1986.37   12.241   310.68
1987.37   12.285   311.19
1988.37   12.328   311.70
1989.37   12.370   312.21
1990.37   12.412   312.71
1991.37   12.453   313.20
1992.37   12.493   313.70
1993.37   12.533   314.19
1994.37   12.572   314.68
1995.37   12.611   315.16
1996.37   12.649   315.64
1997.37   12.687   316.12
1998.37   12.724   316.60
1999.37   12.760   317.07
2000.37   12.796   317.54
2001.37   12.831   318.01
2002.37   12.866   318.47
2003.37   12.901   318.94
2004.37   12.935   319.40
2005.37   12.968   319.85
2006.37   13.001   320.31
2007.37   13.033   320.76
2008.37   13.065   321.21
2009.37   13.097   321.66
2010.37   13.128   322.11
2011.37   13.159   322.56
2012.37   13.189   323.00
2013.37   13.218   323.44
2014.37   13.248   323.88
2015.37   13.277   324.31
2016.37   13.305   324.75
2017.37   13.333   325.18
2018.37   13.361   325.61
2019.37   13.388   326.04
2020.37   13.414   326.47
2021.37   13.441   326.90
2022.37   13.467   327.32
2023.37   13.492   327.74
2024.37   13.518   328.17
2025.37   13.543   328.59
2026.37   13.567   329.00
2027.37   13.591   329.42
2028.37   13.615   329.84
2029.37   13.638   330.25
2030.37   13.661   330.66
2031.37   13.684   331.07
2032.37   13.706   331.48
2033.37   13.728   331.89
2034.37   13.750   332.30
2035.37   13.771   332.70
2036.37   13.792   333.11
2037.37   13.813   333.51
2038.37   13.833   333.91
2039.37   13.853   334.31
2040.37   13.873   334.71
2041.37   13.892   335.11
2042.37   13.912   335.51
2043.37   13.930   335.91
2044.37   13.949   336.30
2045.37   13.967   336.70
2046.37   13.985   337.09
2047.37   14.003   337.48
2048.36   14.020   337.87
2049.36   14.037   338.26
2050.36   14.054   338.65
2051.36   14.070   339.04
2052.36   14.086   339.43
2053.36   14.102   339.82
2054.36   14.118   340.20
2055.36   14.133   340.59
2056.36   14.148   340.97
2057.36   14.163   341.35
2058.36   14.178   341.74
2059.36   14.192   342.12
2060.36   14.206   342.50
2061.36   14.220   342.88
2062.36   14.234   343.26
2063.36   14.247   343.64
2064.36   14.260   344.02
2065.36   14.273   344.39
2066.36   14.285   344.77
2067.36   14.298   345.15
2068.36   14.310   345.52
2069.36   14.322   345.90
2070.36   14.333   346.27
2071.36   14.345   346.64
2072.36   14.356   347.02
2073.36   14.367   347.39
2074.36   14.378   347.76
2075.36   14.388   348.13
2076.36   14.398   348.50
2077.36   14.408   348.87
2078.36   14.418   349.24
2079.36   14.428   349.61
2080.36   14.437   349.98
2081.36   14.446   350.35
2082.36   14.455   350.72
2083.36   14.464   351.09
2084.36   14.473   351.45
2085.36   14.481   351.82
2086.36   14.489   352.19
2087.36   14.497   352.55
2088.36   14.505   352.92
2089.36   14.512   353.28
2090.36   14.520   353.65
2091.36   14.527   354.01
2092.36   14.534   354.38
2093.36   14.540   354.74
2094.36   14.547   355.10
2095.36   14.553   355.46
2096.36   14.559   355.83
2097.36   14.565   356.19
2098.36   14.571   356.55
2099.36   14.576   356.91
2100.36   14.582   357.27
2101.36   14.587   357.64
2102.36   14.592   358.00
2103.36   14.597   358.36
2104.36   14.601   358.72
2105.36   14.605   359.08
2106.36   14.610   359.44
2107.36   14.614   359.80
2108.36   14.617     0.16
2109.36   14.621     0.52
2110.36   14.625     0.88
2111.36   14.628     1.24
2112.36   14.631     1.59
2113.36   14.634     1.95
2114.36   14.636     2.31
2115.36   14.639     2.67
2116.36   14.641     3.03
2117.36   14.644     3.39
2118.36   14.645     3.75
2119.36   14.647     4.10
2120.36   14.649     4.46
2121.36   14.650     4.82
2122.36   14.652     5.18
2123.36   14.653     5.54
2124.36   14.654     5.89
2125.36   14.654     6.25
2126.36   14.655     6.61
2127.36   14.655     6.97
2128.36   14.655     7.32
2129.36   14.655     7.68
2130.36   14.655     8.04
2131.36   14.655     8.40
2132.36   14.654     8.76
2133.36   14.653     9.11
2134.36   14.653     9.47
2135.36   14.651     9.83
2136.36   14.650    10.19
2137.36   14.649    10.55
2138.36   14.647    10.90
2139.36   14.645    11.26
2140.36   14.643    11.62
2141.36   14.641    11.98
2142.36   14.639    12.34
2143.36   14.636    12.69
2144.36   14.634    13.05
2145.36   14.631    13.41
2146.36   14.628    13.77
2147.36   14.624    14.13
2148.36   14.621    14.49
2149.36   14.617    14.85
2150.36   14.613    15.21
2151.36   14.609    15.57
2152.36   14.605    15.93
2153.36   14.601    16.29
2154.36   14.596    16.65
2155.36   14.592    17.01
2156.36   14.587    17.37
2157.36   14.582    17.73
2158.36   14.576    18.09
2159.36   14.571    18.46
2160.36   14.565    18.82
2161.36   14.559    19.18
2162.36   14.553    19.54
2163.36   14.547    19.91
2164.36   14.540    20.27
2165.36   14.534    20.63
2166.36   14.527    21.00
2167.36   14.520    21.36
2168.36   14.513    21.72
2169.36   14.505    22.09
2170.36   14.497    22.46
2171.36   14.490    22.82
2172.36   14.482    23.19
2173.36   14.473    23.55
2174.36   14.465    23.92
2175.36   14.456    24.29
2176.36   14.447    24.66
2177.36   14.438    25.02
2178.36   14.429    25.39
2179.36   14.419    25.76
2180.36   14.410    26.13
2181.36   14.400    26.50
2182.36   14.389    26.87
2183.36   14.379    27.24
2184.36   14.368    27.62
2185.36   14.358    27.99
2186.36   14.347    28.36
2187.36   14.335    28.74
2188.36   14.324    29.11
2189.36   14.312    29.48
2190.36   14.300    29.86
2191.36   14.288    30.24
2192.36   14.275    30.61
2193.36   14.263    30.99
2194.36   14.250    31.37
2195.36   14.237    31.75
2196.36   14.223    32.13
2197.36   14.210    32.51
2198.36   14.196    32.89
2199.36   14.182    33.27
2200.36   14.167    33.65
2201.36   14.153    34.03
2202.36   14.138    34.42
2203.36   14.123    34.80
2204.36   14.107    35.19
2205.36   14.092    35.57
2206.36   14.076    35.96
2207.36   14.059    36.35
2208.36   14.043    36.74
2209.36   14.026    37.13
2210.36   14.009    37.52
2211.36   13.992    37.91
2212.36   13.974    38.31
2213.36   13.956    38.70
2214.36   13.938    39.09
2215.36   13.920    39.49
2216.36   13.901    39.89
2217.36   13.882    40.29
2218.36   13.862    40.68
2219.36   13.843    41.08
2220.36   13.823    41.49
2221.36   13.802    41.89
2222.36   13.782    42.29
2223.36   13.761    42.70
2224.36   13.740    43.10
2225.36   13.718    43.51
2226.36   13.696    43.92
2227.36   13.674    44.33
2228.36   13.651    44.74
2229.36   13.628    45.16
2230.36   13.605    45.57
2231.36   13.581    45.99
2232.36   13.557    46.40
2233.36   13.533    46.82
2234.36   13.508    47.24
2235.36   13.483    47.66
2236.36   13.458    48.09
2237.36   13.432    48.51
2238.36   13.406    48.94
2239.36   13.379    49.37
2240.36   13.352    49.80
2241.36   13.325    50.23
2242.36   13.297    50.66
2243.36   13.269    51.10
2244.36   13.240    51.54
2245.36   13.211    51.97
2246.36   13.181    52.42
2247.36   13.151    52.86
2248.36   13.121    53.30
2249.36   13.090    53.75
2250.36   13.059    54.20
2251.36   13.027    54.65
2252.36   12.995    55.11
2253.36   12.962    55.56
2254.36   12.929    56.02
2255.36   12.896    56.48
2256.36   12.862    56.94
2257.36   12.827    57.41
2258.36   12.792    57.88
2259.36   12.756    58.35
2260.36   12.720    58.82
2261.36   12.683    59.30
2262.36   12.646    59.78
2263.36   12.608    60.26
2264.36   12.570    60.74






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 14:43:30



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