Double Star Calculator - Orbit

Orbital Elements for STF1104AB
WDS: STF1104AB WDS ID/Discoverer
P: 550.139 Orbital period (years)
a: 2.25971 Semi-major axis (arcseconds)
i: 36.934 Inclination (degrees)
Ω: 42.222 Longitude of ascending node (degrees)
T: 2075.218 Epoch of periastron passage (year)
e: 0.36045 Eccentricity
ω: 68.833 Longitude of periastron (degrees)
Start-Year: 1749.9307 Year
End-Year: 2300.0693 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1104AB
Position: 072921.91-145953.4 Epoch-2000 right ascension and declination
WDS-ID: 07294-1500 WDS designation
Discoverer Code: STF1104AB Discover designation and components
ADS number: 6126 Aitken Double Star catalog
HD number: 59438 HD catalog number
Hipparcos number: 36395 Hipparcos catalog number
V1: 6.39 Magnitude of the primary
V2: 7.60 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 STF1104AB



WDS 6th Orbit including measures of STF1104AB

-- 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 STF1104AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.702    45.50
--------------------------
1749.93    2.644   267.88
1750.93    2.643   268.24
1751.93    2.642   268.60
1752.93    2.640   268.95
1753.93    2.639   269.31
1754.93    2.638   269.67
1755.93    2.637   270.03
1756.93    2.635   270.38
1757.93    2.634   270.74
1758.93    2.633   271.10
1759.93    2.631   271.46
1760.93    2.630   271.82
1761.93    2.628   272.18
1762.93    2.627   272.54
1763.93    2.625   272.91
1764.93    2.623   273.27
1765.93    2.622   273.63
1766.93    2.620   273.99
1767.93    2.618   274.36
1768.93    2.616   274.72
1769.93    2.614   275.08
1770.93    2.613   275.45
1771.93    2.611   275.81
1772.93    2.609   276.18
1773.93    2.607   276.55
1774.93    2.605   276.91
1775.93    2.603   277.28
1776.93    2.601   277.65
1777.93    2.599   278.02
1778.93    2.597   278.39
1779.93    2.595   278.76
1780.93    2.592   279.13
1781.93    2.590   279.50
1782.93    2.588   279.87
1783.93    2.586   280.24
1784.93    2.583   280.61
1785.93    2.581   280.99
1786.93    2.579   281.36
1787.93    2.577   281.74
1788.93    2.574   282.11
1789.93    2.572   282.49
1790.93    2.569   282.87
1791.93    2.567   283.24
1792.93    2.565   283.62
1793.93    2.562   284.00
1794.93    2.560   284.38
1795.93    2.557   284.76
1796.93    2.555   285.14
1797.93    2.552   285.53
1798.93    2.549   285.91
1799.93    2.547   286.29
1800.93    2.544   286.68
1801.93    2.542   287.06
1802.93    2.539   287.45
1803.93    2.536   287.83
1804.93    2.534   288.22
1805.93    2.531   288.61
1806.93    2.528   289.00
1807.93    2.526   289.39
1808.93    2.523   289.78
1809.93    2.520   290.17
1810.93    2.517   290.57
1811.93    2.515   290.96
1812.93    2.512   291.35
1813.93    2.509   291.75
1814.93    2.506   292.15
1815.93    2.503   292.54
1816.93    2.501   292.94
1817.93    2.498   293.34
1818.93    2.495   293.74
1819.93    2.492   294.14
1820.93    2.489   294.54
1821.93    2.486   294.94
1822.93    2.483   295.35
1823.93    2.481   295.75
1824.93    2.478   296.16
1825.93    2.475   296.56
1826.93    2.472   296.97
1827.93    2.469   297.38
1828.93    2.466   297.79
1829.93    2.463   298.20
1830.93    2.460   298.61
1831.93    2.457   299.02
1832.93    2.454   299.43
1833.93    2.452   299.85
1834.93    2.449   300.26
1835.93    2.446   300.68
1836.93    2.443   301.10
1837.93    2.440   301.51
1838.93    2.437   301.93
1839.93    2.434   302.35
1840.93    2.431   302.77
1841.93    2.428   303.20
1842.93    2.425   303.62
1843.93    2.422   304.04
1844.93    2.419   304.47
1845.93    2.416   304.90
1846.93    2.413   305.32
1847.93    2.410   305.75
1848.93    2.407   306.18
1849.93    2.405   306.61
1850.93    2.402   307.04
1851.93    2.399   307.47
1852.93    2.396   307.91
1853.93    2.393   308.34
1854.93    2.390   308.78
1855.93    2.387   309.22
1856.93    2.384   309.65
1857.93    2.381   310.09
1858.93    2.378   310.53
1859.93    2.375   310.97
1860.93    2.373   311.41
1861.93    2.370   311.86
1862.93    2.367   312.30
1863.93    2.364   312.75
1864.93    2.361   313.19
1865.93    2.358   313.64
1866.93    2.355   314.09
1867.93    2.352   314.54
1868.93    2.350   314.99
1869.93    2.347   315.44
1870.93    2.344   315.89
1871.93    2.341   316.35
1872.93    2.338   316.80
1873.93    2.335   317.26
1874.93    2.333   317.72
1875.93    2.330   318.18
1876.93    2.327   318.64
1877.93    2.324   319.10
1878.93    2.322   319.56
1879.93    2.319   320.02
1880.93    2.316   320.48
1881.93    2.313   320.95
1882.93    2.310   321.42
1883.93    2.308   321.88
1884.93    2.305   322.35
1885.93    2.302   322.82
1886.93    2.300   323.29
1887.93    2.297   323.76
1888.93    2.294   324.24
1889.93    2.291   324.71
1890.93    2.289   325.18
1891.93    2.286   325.66
1892.93    2.283   326.14
1893.93    2.281   326.62
1894.93    2.278   327.10
1895.93    2.275   327.58
1896.93    2.273   328.06
1897.93    2.270   328.54
1898.93    2.267   329.03
1899.93    2.265   329.51
1900.93    2.262   330.00
1901.93    2.260   330.48
1902.93    2.257   330.97
1903.93    2.254   331.46
1904.93    2.252   331.95
1905.93    2.249   332.45
1906.93    2.247   332.94
1907.93    2.244   333.43
1908.93    2.241   333.93
1909.93    2.239   334.42
1910.93    2.236   334.92
1911.93    2.234   335.42
1912.93    2.231   335.92
1913.93    2.228   336.42
1914.93    2.226   336.92
1915.93    2.223   337.43
1916.93    2.221   337.93
1917.93    2.218   338.44
1918.93    2.215   338.94
1919.93    2.213   339.45
1920.93    2.210   339.96
1921.93    2.208   340.47
1922.93    2.205   340.98
1923.93    2.203   341.50
1924.93    2.200   342.01
1925.93    2.197   342.53
1926.93    2.195   343.04
1927.93    2.192   343.56
1928.93    2.189   344.08
1929.93    2.187   344.60
1930.93    2.184   345.12
1931.93    2.182   345.65
1932.93    2.179   346.17
1933.93    2.176   346.70
1934.93    2.174   347.22
1935.93    2.171   347.75
1936.93    2.168   348.28
1937.93    2.165   348.81
1938.93    2.163   349.34
1939.93    2.160   349.88
1940.93    2.157   350.41
1941.93    2.154   350.95
1942.93    2.151   351.48
1943.93    2.149   352.02
1944.93    2.146   352.56
1945.93    2.143   353.10
1946.93    2.140   353.65
1947.93    2.137   354.19
1948.93    2.134   354.74
1949.93    2.131   355.29
1950.93    2.128   355.84
1951.93    2.125   356.39
1952.93    2.122   356.94
1953.93    2.119   357.49
1954.93    2.116   358.05
1955.93    2.113   358.61
1956.93    2.110   359.17
1957.93    2.106   359.73
1958.93    2.103     0.29
1959.93    2.100     0.85
1960.93    2.096     1.42
1961.93    2.093     1.99
1962.93    2.090     2.56
1963.93    2.086     3.13
1964.93    2.083     3.70
1965.93    2.079     4.28
1966.93    2.075     4.85
1967.93    2.072     5.43
1968.93    2.068     6.02
1969.93    2.064     6.60
1970.93    2.060     7.18
1971.93    2.056     7.77
1972.93    2.052     8.36
1973.93    2.048     8.96
1974.93    2.044     9.55
1975.93    2.040    10.15
1976.93    2.036    10.75
1977.93    2.032    11.35
1978.93    2.027    11.95
1979.93    2.023    12.56
1980.93    2.018    13.17
1981.93    2.014    13.79
1982.93    2.009    14.40
1983.93    2.004    15.02
1984.93    2.000    15.64
1985.93    1.995    16.27
1986.93    1.990    16.89
1987.93    1.985    17.53
1988.93    1.979    18.16
1989.93    1.974    18.80
1990.93    1.969    19.44
1991.93    1.963    20.08
1992.93    1.958    20.73
1993.93    1.952    21.38
1994.93    1.946    22.04
1995.93    1.940    22.70
1996.93    1.935    23.36
1997.93    1.928    24.03
1998.93    1.922    24.70
1999.93    1.916    25.38
2000.93    1.910    26.06
2001.93    1.903    26.74
2002.93    1.896    27.43
2003.93    1.890    28.13
2004.93    1.883    28.83
2005.93    1.876    29.54
2006.93    1.869    30.25
2007.93    1.861    30.96
2008.93    1.854    31.68
2009.93    1.847    32.41
2010.93    1.839    33.15
2011.93    1.831    33.89
2012.93    1.823    34.63
2013.93    1.815    35.39
2014.93    1.807    36.14
2015.93    1.799    36.91
2016.93    1.790    37.68
2017.93    1.782    38.47
2018.93    1.773    39.25
2019.93    1.764    40.05
2020.93    1.755    40.86
2021.93    1.746    41.67
2022.93    1.737    42.49
2023.93    1.727    43.32
2024.93    1.718    44.16
2025.93    1.708    45.01
2026.93    1.698    45.87
2027.93    1.688    46.74
2028.93    1.678    47.62
2029.93    1.668    48.51
2030.93    1.658    49.41
2031.93    1.647    50.32
2032.93    1.636    51.25
2033.93    1.626    52.18
2034.93    1.615    53.13
2035.93    1.604    54.09
2036.93    1.593    55.07
2037.93    1.582    56.06
2038.93    1.571    57.06
2039.93    1.559    58.08
2040.93    1.548    59.11
2041.93    1.536    60.16
2042.93    1.525    61.22
2043.93    1.513    62.30
2044.93    1.501    63.40
2045.93    1.490    64.51
2046.93    1.478    65.64
2047.93    1.466    66.79
2048.93    1.454    67.96
2049.93    1.443    69.15
2050.93    1.431    70.35
2051.93    1.419    71.58
2052.93    1.408    72.83
2053.93    1.396    74.10
2054.93    1.384    75.39
2055.93    1.373    76.70
2056.93    1.362    78.03
2057.93    1.350    79.38
2058.93    1.339    80.76
2059.93    1.328    82.16
2060.93    1.318    83.59
2061.93    1.307    85.03
2062.93    1.297    86.50
2063.93    1.287    88.00
2064.93    1.277    89.51
2065.93    1.267    91.05
2066.93    1.258    92.61
2067.93    1.249    94.20
2068.93    1.241    95.80
2069.93    1.233    97.43
2070.93    1.225    99.08
2071.93    1.218   100.75
2072.93    1.211   102.44
2073.93    1.205   104.15
2074.93    1.199   105.88
2075.93    1.193   107.62
2076.93    1.188   109.38
2077.93    1.184   111.15
2078.93    1.180   112.93
2079.93    1.177   114.72
2080.93    1.174   116.53
2081.93    1.172   118.34
2082.93    1.171   120.15
2083.93    1.170   121.97
2084.93    1.169   123.80
2085.93    1.170   125.62
2086.93    1.171   127.44
2087.93    1.172   129.25
2088.93    1.174   131.06
2089.93    1.177   132.86
2090.93    1.181   134.66
2091.93    1.185   136.44
2092.93    1.189   138.21
2093.93    1.194   139.96
2094.93    1.200   141.70
2095.93    1.206   143.42
2096.93    1.213   145.12
2097.93    1.221   146.80
2098.93    1.228   148.47
2099.93    1.237   150.11
2100.93    1.246   151.72
2101.93    1.255   153.32
2102.93    1.264   154.89
2103.93    1.275   156.43
2104.93    1.285   157.95
2105.93    1.296   159.45
2106.93    1.307   160.92
2107.93    1.319   162.37
2108.93    1.331   163.79
2109.93    1.343   165.18
2110.93    1.355   166.55
2111.93    1.368   167.90
2112.93    1.381   169.21
2113.93    1.394   170.51
2114.93    1.407   171.78
2115.93    1.421   173.03
2116.93    1.434   174.25
2117.93    1.448   175.45
2118.93    1.462   176.62
2119.93    1.476   177.78
2120.93    1.491   178.91
2121.93    1.505   180.02
2122.93    1.519   181.11
2123.93    1.534   182.18
2124.93    1.548   183.23
2125.93    1.563   184.26
2126.93    1.578   185.27
2127.93    1.592   186.26
2128.93    1.607   187.23
2129.93    1.622   188.19
2130.93    1.636   189.13
2131.93    1.651   190.05
2132.93    1.666   190.95
2133.93    1.680   191.85
2134.93    1.695   192.72
2135.93    1.709   193.58
2136.93    1.724   194.43
2137.93    1.738   195.26
2138.93    1.752   196.08
2139.93    1.767   196.88
2140.93    1.781   197.67
2141.93    1.795   198.45
2142.93    1.809   199.22
2143.93    1.823   199.97
2144.93    1.837   200.72
2145.93    1.851   201.45
2146.93    1.864   202.17
2147.93    1.878   202.88
2148.93    1.891   203.59
2149.93    1.905   204.28
2150.93    1.918   204.96
2151.93    1.931   205.63
2152.93    1.944   206.30
2153.93    1.957   206.95
2154.93    1.970   207.60
2155.93    1.983   208.23
2156.93    1.995   208.86
2157.93    2.007   209.49
2158.93    2.020   210.10
2159.93    2.032   210.71
2160.93    2.044   211.31
2161.93    2.056   211.90
2162.93    2.068   212.49
2163.93    2.079   213.07
2164.93    2.091   213.64
2165.93    2.102   214.21
2166.93    2.114   214.77
2167.93    2.125   215.32
2168.93    2.136   215.87
2169.93    2.147   216.41
2170.93    2.157   216.95
2171.93    2.168   217.48
2172.93    2.178   218.01
2173.93    2.189   218.53
2174.93    2.199   219.05
2175.93    2.209   219.57
2176.93    2.219   220.07
2177.93    2.229   220.58
2178.93    2.238   221.08
2179.93    2.248   221.57
2180.93    2.257   222.06
2181.93    2.267   222.55
2182.93    2.276   223.03
2183.93    2.285   223.51
2184.93    2.294   223.99
2185.93    2.302   224.46
2186.93    2.311   224.93
2187.93    2.319   225.39
2188.93    2.328   225.85
2189.93    2.336   226.31
2190.93    2.344   226.77
2191.93    2.352   227.22
2192.93    2.360   227.67
2193.93    2.368   228.11
2194.93    2.375   228.56
2195.93    2.383   229.00
2196.93    2.390   229.43
2197.93    2.398   229.87
2198.93    2.405   230.30
2199.93    2.412   230.73
2200.93    2.419   231.16
2201.93    2.425   231.58
2202.93    2.432   232.00
2203.93    2.439   232.42
2204.93    2.445   232.84
2205.93    2.451   233.26
2206.93    2.458   233.67
2207.93    2.464   234.08
2208.93    2.470   234.49
2209.93    2.475   234.90
2210.93    2.481   235.31
2211.93    2.487   235.71
2212.93    2.492   236.11
2213.93    2.498   236.51
2214.93    2.503   236.91
2215.93    2.508   237.31
2216.93    2.513   237.70
2217.93    2.518   238.10
2218.93    2.523   238.49
2219.93    2.528   238.88
2220.93    2.533   239.27
2221.93    2.537   239.65
2222.93    2.542   240.04
2223.93    2.546   240.43
2224.93    2.550   240.81
2225.93    2.555   241.19
2226.93    2.559   241.57
2227.93    2.563   241.95
2228.93    2.567   242.33
2229.93    2.570   242.71
2230.93    2.574   243.09
2231.93    2.578   243.46
2232.93    2.581   243.84
2233.93    2.585   244.21
2234.93    2.588   244.58
2235.93    2.591   244.95
2236.93    2.594   245.32
2237.93    2.597   245.69
2238.93    2.600   246.06
2239.93    2.603   246.43
2240.93    2.606   246.80
2241.93    2.609   247.16
2242.93    2.611   247.53
2243.93    2.614   247.90
2244.93    2.616   248.26
2245.93    2.619   248.62
2246.93    2.621   248.99
2247.93    2.623   249.35
2248.93    2.625   249.71
2249.93    2.627   250.07
2250.93    2.629   250.43
2251.93    2.631   250.79
2252.93    2.633   251.15
2253.93    2.635   251.51
2254.93    2.636   251.87
2255.93    2.638   252.23
2256.93    2.639   252.59
2257.93    2.641   252.94
2258.93    2.642   253.30
2259.93    2.644   253.66
2260.93    2.645   254.01
2261.93    2.646   254.37
2262.93    2.647   254.73
2263.93    2.648   255.08
2264.93    2.649   255.44
2265.93    2.650   255.79
2266.93    2.651   256.15
2267.93    2.651   256.50
2268.93    2.652   256.85
2269.93    2.653   257.21
2270.93    2.653   257.56
2271.93    2.654   257.92
2272.93    2.654   258.27
2273.93    2.654   258.62
2274.93    2.655   258.98
2275.93    2.655   259.33
2276.93    2.655   259.68
2277.93    2.655   260.04
2278.93    2.655   260.39
2279.93    2.655   260.74
2280.93    2.655   261.10
2281.93    2.655   261.45
2282.93    2.655   261.80
2283.93    2.655   262.16
2284.93    2.654   262.51
2285.93    2.654   262.87
2286.93    2.654   263.22
2287.93    2.653   263.57
2288.93    2.653   263.93
2289.93    2.652   264.28
2290.93    2.652   264.64
2291.93    2.651   264.99
2292.93    2.650   265.34
2293.93    2.650   265.70
2294.93    2.649   266.05
2295.93    2.648   266.41
2296.93    2.647   266.76
2297.93    2.646   267.12
2298.93    2.645   267.48
2299.93    2.644   267.83






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 15:57:40



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