Double Star Calculator - Orbit

Orbital Elements for STF2752AB
WDS: STF2752AB WDS ID/Discoverer
P: 507.700 Orbital period (years)
a: 3.876 Semi-major axis (arcseconds)
i: 54.0 Inclination (degrees)
Ω: 335.5 Longitude of ascending node (degrees)
T: 2124.100 Epoch of periastron passage (year)
e: 0.45 Eccentricity
ω: 349.9 Longitude of periastron (degrees)
Start-Year: 1771.15 Year
End-Year: 2278.85 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2752AB
Position: 210710.38-135522.5 Epoch-2000 right ascension and declination
WDS-ID: 21072-1355 WDS designation
Discoverer Code: STF2752AB Discover designation and components
ADS number: 14638 Aitken Double Star catalog
HD number: 200968 HD catalog number
Hipparcos number: 104239 Hipparcos catalog number
V1: 7.29 Magnitude of the primary
V2: 9.99 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2000 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Hrt2013c Reference

Double Star Orbit for STF2752AB



WDS 6th Orbit including measures of STF2752AB

-- 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 STF2752AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    3.191   189.44
--------------------------
1771.15    4.179   127.25
1772.15    4.203   127.57
1773.15    4.227   127.89
1774.15    4.250   128.20
1775.15    4.273   128.51
1776.15    4.296   128.81
1777.15    4.319   129.11
1778.15    4.342   129.41
1779.15    4.364   129.71
1780.15    4.386   130.00
1781.15    4.408   130.29
1782.15    4.430   130.57
1783.15    4.452   130.86
1784.15    4.474   131.14
1785.15    4.495   131.42
1786.15    4.516   131.69
1787.15    4.537   131.96
1788.15    4.558   132.23
1789.15    4.578   132.50
1790.15    4.599   132.77
1791.15    4.619   133.03
1792.15    4.639   133.29
1793.15    4.659   133.55
1794.15    4.679   133.81
1795.15    4.698   134.06
1796.15    4.717   134.31
1797.15    4.736   134.56
1798.15    4.755   134.81
1799.15    4.774   135.06
1800.15    4.792   135.30
1801.15    4.811   135.55
1802.15    4.829   135.79
1803.15    4.846   136.03
1804.15    4.864   136.26
1805.15    4.882   136.50
1806.15    4.899   136.73
1807.15    4.916   136.96
1808.15    4.933   137.20
1809.15    4.949   137.42
1810.15    4.966   137.65
1811.15    4.982   137.88
1812.15    4.998   138.10
1813.15    5.014   138.33
1814.15    5.029   138.55
1815.15    5.045   138.77
1816.15    5.060   138.99
1817.15    5.075   139.20
1818.15    5.090   139.42
1819.15    5.104   139.64
1820.15    5.119   139.85
1821.15    5.133   140.06
1822.15    5.147   140.27
1823.15    5.161   140.49
1824.15    5.174   140.69
1825.15    5.187   140.90
1826.15    5.200   141.11
1827.15    5.213   141.32
1828.15    5.226   141.52
1829.15    5.239   141.73
1830.15    5.251   141.93
1831.15    5.263   142.13
1832.15    5.275   142.33
1833.15    5.286   142.53
1834.15    5.298   142.73
1835.15    5.309   142.93
1836.15    5.320   143.13
1837.15    5.331   143.33
1838.15    5.341   143.52
1839.15    5.351   143.72
1840.15    5.361   143.91
1841.15    5.371   144.11
1842.15    5.381   144.30
1843.15    5.391   144.49
1844.15    5.400   144.69
1845.15    5.409   144.88
1846.15    5.418   145.07
1847.15    5.426   145.26
1848.15    5.435   145.45
1849.15    5.443   145.64
1850.15    5.451   145.83
1851.15    5.458   146.01
1852.15    5.466   146.20
1853.15    5.473   146.39
1854.15    5.480   146.58
1855.15    5.487   146.76
1856.15    5.494   146.95
1857.15    5.500   147.13
1858.15    5.506   147.32
1859.15    5.512   147.50
1860.15    5.518   147.68
1861.15    5.523   147.87
1862.15    5.529   148.05
1863.15    5.534   148.23
1864.15    5.539   148.42
1865.15    5.543   148.60
1866.15    5.548   148.78
1867.15    5.552   148.96
1868.15    5.556   149.14
1869.15    5.560   149.32
1870.15    5.563   149.50
1871.15    5.566   149.69
1872.15    5.569   149.87
1873.15    5.572   150.05
1874.15    5.575   150.23
1875.15    5.577   150.41
1876.15    5.579   150.59
1877.15    5.581   150.77
1878.15    5.583   150.94
1879.15    5.584   151.12
1880.15    5.586   151.30
1881.15    5.587   151.48
1882.15    5.588   151.66
1883.15    5.588   151.84
1884.15    5.588   152.02
1885.15    5.589   152.20
1886.15    5.588   152.38
1887.15    5.588   152.56
1888.15    5.588   152.74
1889.15    5.587   152.91
1890.15    5.586   153.09
1891.15    5.584   153.27
1892.15    5.583   153.45
1893.15    5.581   153.63
1894.15    5.579   153.81
1895.15    5.577   153.99
1896.15    5.575   154.17
1897.15    5.572   154.35
1898.15    5.569   154.53
1899.15    5.566   154.71
1900.15    5.563   154.89
1901.15    5.559   155.07
1902.15    5.555   155.25
1903.15    5.551   155.44
1904.15    5.547   155.62
1905.15    5.543   155.80
1906.15    5.538   155.98
1907.15    5.533   156.16
1908.15    5.528   156.35
1909.15    5.522   156.53
1910.15    5.516   156.71
1911.15    5.511   156.90
1912.15    5.504   157.08
1913.15    5.498   157.27
1914.15    5.491   157.45
1915.15    5.485   157.64
1916.15    5.477   157.82
1917.15    5.470   158.01
1918.15    5.463   158.20
1919.15    5.455   158.38
1920.15    5.447   158.57
1921.15    5.438   158.76
1922.15    5.430   158.95
1923.15    5.421   159.14
1924.15    5.412   159.33
1925.15    5.403   159.52
1926.15    5.393   159.71
1927.15    5.384   159.91
1928.15    5.374   160.10
1929.15    5.363   160.29
1930.15    5.353   160.49
1931.15    5.342   160.69
1932.15    5.331   160.88
1933.15    5.320   161.08
1934.15    5.309   161.28
1935.15    5.297   161.48
1936.15    5.285   161.68
1937.15    5.273   161.88
1938.15    5.260   162.08
1939.15    5.248   162.28
1940.15    5.235   162.48
1941.15    5.222   162.69
1942.15    5.208   162.89
1943.15    5.195   163.10
1944.15    5.181   163.31
1945.15    5.167   163.52
1946.15    5.152   163.73
1947.15    5.138   163.94
1948.15    5.123   164.15
1949.15    5.108   164.36
1950.15    5.092   164.58
1951.15    5.077   164.80
1952.15    5.061   165.01
1953.15    5.045   165.23
1954.15    5.028   165.45
1955.15    5.012   165.67
1956.15    4.995   165.90
1957.15    4.978   166.12
1958.15    4.960   166.35
1959.15    4.943   166.58
1960.15    4.925   166.81
1961.15    4.907   167.04
1962.15    4.888   167.27
1963.15    4.870   167.51
1964.15    4.851   167.74
1965.15    4.832   167.98
1966.15    4.812   168.22
1967.15    4.793   168.47
1968.15    4.773   168.71
1969.15    4.752   168.96
1970.15    4.732   169.20
1971.15    4.711   169.46
1972.15    4.691   169.71
1973.15    4.669   169.96
1974.15    4.648   170.22
1975.15    4.626   170.48
1976.15    4.604   170.74
1977.15    4.582   171.01
1978.15    4.560   171.28
1979.15    4.537   171.55
1980.15    4.514   171.82
1981.15    4.491   172.10
1982.15    4.468   172.37
1983.15    4.444   172.66
1984.15    4.420   172.94
1985.15    4.396   173.23
1986.15    4.371   173.52
1987.15    4.347   173.81
1988.15    4.322   174.11
1989.15    4.297   174.41
1990.15    4.271   174.72
1991.15    4.246   175.03
1992.15    4.220   175.34
1993.15    4.194   175.65
1994.15    4.167   175.97
1995.15    4.141   176.30
1996.15    4.114   176.63
1997.15    4.087   176.96
1998.15    4.059   177.30
1999.15    4.032   177.64
2000.15    4.004   177.98
2001.15    3.976   178.34
2002.15    3.947   178.69
2003.15    3.919   179.05
2004.15    3.890   179.42
2005.15    3.861   179.79
2006.15    3.832   180.17
2007.15    3.802   180.55
2008.15    3.773   180.94
2009.15    3.743   181.34
2010.15    3.712   181.74
2011.15    3.682   182.15
2012.15    3.652   182.57
2013.15    3.621   182.99
2014.15    3.590   183.42
2015.15    3.559   183.86
2016.15    3.527   184.30
2017.15    3.496   184.76
2018.15    3.464   185.22
2019.15    3.432   185.69
2020.15    3.400   186.17
2021.15    3.367   186.66
2022.15    3.335   187.16
2023.15    3.302   187.66
2024.15    3.269   188.18
2025.15    3.236   188.71
2026.15    3.203   189.25
2027.15    3.170   189.80
2028.15    3.136   190.36
2029.15    3.103   190.94
2030.15    3.069   191.52
2031.15    3.035   192.12
2032.15    3.001   192.74
2033.15    2.967   193.37
2034.15    2.933   194.01
2035.15    2.899   194.67
2036.15    2.865   195.34
2037.15    2.830   196.03
2038.15    2.796   196.74
2039.15    2.762   197.46
2040.15    2.727   198.20
2041.15    2.693   198.96
2042.15    2.658   199.75
2043.15    2.624   200.55
2044.15    2.590   201.37
2045.15    2.556   202.21
2046.15    2.521   203.08
2047.15    2.487   203.97
2048.15    2.454   204.89
2049.15    2.420   205.83
2050.15    2.386   206.80
2051.15    2.353   207.80
2052.15    2.320   208.82
2053.15    2.287   209.88
2054.15    2.254   210.96
2055.15    2.222   212.08
2056.15    2.190   213.22
2057.15    2.159   214.41
2058.15    2.128   215.63
2059.15    2.097   216.88
2060.15    2.067   218.17
2061.15    2.037   219.50
2062.15    2.009   220.86
2063.15    1.980   222.27
2064.15    1.953   223.71
2065.15    1.926   225.20
2066.15    1.900   226.73
2067.15    1.874   228.30
2068.15    1.850   229.91
2069.15    1.827   231.57
2070.15    1.804   233.27
2071.15    1.783   235.01
2072.15    1.762   236.79
2073.15    1.743   238.61
2074.15    1.725   240.47
2075.15    1.708   242.36
2076.15    1.693   244.30
2077.15    1.679   246.27
2078.15    1.666   248.26
2079.15    1.655   250.29
2080.15    1.645   252.35
2081.15    1.636   254.43
2082.15    1.629   256.53
2083.15    1.624   258.64
2084.15    1.620   260.77
2085.15    1.617   262.90
2086.15    1.616   265.04
2087.15    1.617   267.18
2088.15    1.619   269.32
2089.15    1.622   271.45
2090.15    1.627   273.57
2091.15    1.633   275.67
2092.15    1.640   277.76
2093.15    1.649   279.83
2094.15    1.659   281.87
2095.15    1.670   283.89
2096.15    1.682   285.88
2097.15    1.695   287.85
2098.15    1.708   289.78
2099.15    1.723   291.68
2100.15    1.738   293.55
2101.15    1.754   295.38
2102.15    1.771   297.18
2103.15    1.788   298.94
2104.15    1.805   300.68
2105.15    1.823   302.38
2106.15    1.841   304.04
2107.15    1.859   305.68
2108.15    1.877   307.28
2109.15    1.895   308.85
2110.15    1.913   310.40
2111.15    1.930   311.91
2112.15    1.948   313.40
2113.15    1.965   314.86
2114.15    1.981   316.30
2115.15    1.997   317.71
2116.15    2.013   319.10
2117.15    2.028   320.47
2118.15    2.042   321.82
2119.15    2.055   323.15
2120.15    2.068   324.47
2121.15    2.080   325.77
2122.15    2.091   327.05
2123.15    2.101   328.33
2124.15    2.111   329.59
2125.15    2.119   330.84
2126.15    2.126   332.08
2127.15    2.133   333.31
2128.15    2.138   334.54
2129.15    2.143   335.76
2130.15    2.147   336.97
2131.15    2.149   338.18
2132.15    2.151   339.39
2133.15    2.151   340.60
2134.15    2.151   341.81
2135.15    2.150   343.02
2136.15    2.148   344.23
2137.15    2.145   345.44
2138.15    2.141   346.66
2139.15    2.137   347.88
2140.15    2.132   349.11
2141.15    2.126   350.34
2142.15    2.119   351.58
2143.15    2.112   352.83
2144.15    2.104   354.09
2145.15    2.096   355.36
2146.15    2.087   356.64
2147.15    2.078   357.93
2148.15    2.068   359.23
2149.15    2.058     0.54
2150.15    2.048     1.87
2151.15    2.038     3.21
2152.15    2.027     4.56
2153.15    2.016     5.93
2154.15    2.006     7.32
2155.15    1.995     8.71
2156.15    1.984    10.13
2157.15    1.974    11.55
2158.15    1.963    13.00
2159.15    1.953    14.45
2160.15    1.943    15.93
2161.15    1.934    17.41
2162.15    1.925    18.92
2163.15    1.916    20.43
2164.15    1.908    21.96
2165.15    1.900    23.51
2166.15    1.892    25.06
2167.15    1.886    26.63
2168.15    1.880    28.21
2169.15    1.874    29.79
2170.15    1.870    31.39
2171.15    1.866    32.99
2172.15    1.862    34.60
2173.15    1.860    36.22
2174.15    1.858    37.84
2175.15    1.857    39.46
2176.15    1.857    41.08
2177.15    1.858    42.70
2178.15    1.860    44.32
2179.15    1.863    45.93
2180.15    1.866    47.54
2181.15    1.871    49.14
2182.15    1.876    50.73
2183.15    1.882    52.32
2184.15    1.889    53.89
2185.15    1.897    55.45
2186.15    1.906    57.00
2187.15    1.916    58.53
2188.15    1.926    60.05
2189.15    1.938    61.54
2190.15    1.950    63.02
2191.15    1.963    64.48
2192.15    1.977    65.93
2193.15    1.991    67.35
2194.15    2.007    68.75
2195.15    2.023    70.12
2196.15    2.040    71.48
2197.15    2.057    72.81
2198.15    2.075    74.12
2199.15    2.094    75.41
2200.15    2.113    76.67
2201.15    2.133    77.91
2202.15    2.154    79.13
2203.15    2.175    80.32
2204.15    2.196    81.49
2205.15    2.218    82.64
2206.15    2.241    83.77
2207.15    2.264    84.87
2208.15    2.287    85.95
2209.15    2.311    87.01
2210.15    2.335    88.04
2211.15    2.360    89.06
2212.15    2.385    90.05
2213.15    2.410    91.02
2214.15    2.436    91.98
2215.15    2.461    92.91
2216.15    2.488    93.82
2217.15    2.514    94.72
2218.15    2.540    95.59
2219.15    2.567    96.45
2220.15    2.594    97.29
2221.15    2.621    98.11
2222.15    2.649    98.92
2223.15    2.676    99.71
2224.15    2.704   100.48
2225.15    2.731   101.24
2226.15    2.759   101.98
2227.15    2.787   102.70
2228.15    2.815   103.42
2229.15    2.843   104.12
2230.15    2.872   104.80
2231.15    2.900   105.47
2232.15    2.928   106.13
2233.15    2.956   106.78
2234.15    2.985   107.41
2235.15    3.013   108.03
2236.15    3.041   108.64
2237.15    3.070   109.24
2238.15    3.098   109.83
2239.15    3.126   110.41
2240.15    3.155   110.97
2241.15    3.183   111.53
2242.15    3.211   112.08
2243.15    3.240   112.61
2244.15    3.268   113.14
2245.15    3.296   113.66
2246.15    3.324   114.17
2247.15    3.352   114.67
2248.15    3.380   115.17
2249.15    3.407   115.65
2250.15    3.435   116.13
2251.15    3.463   116.60
2252.15    3.490   117.06
2253.15    3.518   117.52
2254.15    3.545   117.97
2255.15    3.572   118.41
2256.15    3.600   118.84
2257.15    3.627   119.27
2258.15    3.654   119.69
2259.15    3.680   120.11
2260.15    3.707   120.52
2261.15    3.734   120.92
2262.15    3.760   121.32
2263.15    3.786   121.72
2264.15    3.812   122.10
2265.15    3.838   122.48
2266.15    3.864   122.86
2267.15    3.890   123.23
2268.15    3.915   123.60
2269.15    3.941   123.96
2270.15    3.966   124.32
2271.15    3.991   124.67
2272.15    4.016   125.02
2273.15    4.041   125.37
2274.15    4.066   125.71
2275.15    4.090   126.04
2276.15    4.114   126.38
2277.15    4.139   126.70
2278.15    4.163   127.03






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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:22:45



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