Double Star Calculator - Orbit

Orbital Elements for STF2454AB
WDS: STF2454AB WDS ID/Discoverer
P: 559.460 Orbital period (years)
a: 1.421 Semi-major axis (arcseconds)
i: 65.2 Inclination (degrees)
Ω: 145.1 Longitude of ascending node (degrees)
T: 1700.680 Epoch of periastron passage (year)
e: 0.55 Eccentricity
ω: 292.9 Longitude of periastron (degrees)
Start-Year: 1745.27 Year
End-Year: 2304.73 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2454AB
Position: 190609.37+302618.8 Epoch-2000 right ascension and declination
WDS-ID: 19062+3026 WDS designation
Discoverer Code: STF2454AB Discover designation and components
ADS number: 12040 Aitken Double Star catalog
HD number: 178091 HD catalog number
Hipparcos number: 93798 Hipparcos catalog number
V1: 8.34 Magnitude of the primary
V2: 9.72 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 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: Msn2014b Reference

Double Star Orbit for STF2454AB



WDS 6th Orbit including measures of STF2454AB

Error: Timeout while trying to load WDS 6th Orbit image.


Ephemeris of STF2454AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.407   292.59
--------------------------
1745.27    0.917   153.80
1746.27    0.921   154.34
1747.27    0.925   154.87
1748.27    0.929   155.40
1749.27    0.933   155.93
1750.27    0.936   156.45
1751.27    0.939   156.97
1752.27    0.942   157.48
1753.27    0.944   157.99
1754.27    0.947   158.50
1755.27    0.949   159.01
1756.27    0.951   159.51
1757.27    0.952   160.02
1758.27    0.954   160.52
1759.27    0.955   161.02
1760.27    0.957   161.51
1761.27    0.958   162.01
1762.27    0.958   162.51
1763.27    0.959   163.00
1764.27    0.960   163.50
1765.27    0.960   163.99
1766.27    0.960   164.48
1767.27    0.960   164.98
1768.27    0.960   165.47
1769.27    0.960   165.97
1770.27    0.960   166.46
1771.27    0.959   166.95
1772.27    0.959   167.45
1773.27    0.958   167.94
1774.27    0.957   168.44
1775.27    0.957   168.94
1776.27    0.956   169.43
1777.27    0.955   169.93
1778.27    0.953   170.43
1779.27    0.952   170.93
1780.27    0.951   171.44
1781.27    0.950   171.94
1782.27    0.948   172.45
1783.27    0.947   172.95
1784.27    0.945   173.46
1785.27    0.943   173.97
1786.27    0.942   174.49
1787.27    0.940   175.00
1788.27    0.938   175.52
1789.27    0.936   176.03
1790.27    0.934   176.55
1791.27    0.932   177.08
1792.27    0.930   177.60
1793.27    0.928   178.13
1794.27    0.926   178.66
1795.27    0.924   179.19
1796.27    0.922   179.72
1797.27    0.920   180.26
1798.27    0.918   180.80
1799.27    0.916   181.34
1800.27    0.913   181.88
1801.27    0.911   182.43
1802.27    0.909   182.98
1803.27    0.907   183.53
1804.27    0.905   184.09
1805.27    0.902   184.65
1806.27    0.900   185.21
1807.27    0.898   185.77
1808.27    0.895   186.34
1809.27    0.893   186.90
1810.27    0.891   187.48
1811.27    0.889   188.05
1812.27    0.886   188.63
1813.27    0.884   189.21
1814.27    0.882   189.79
1815.27    0.880   190.38
1816.27    0.878   190.97
1817.27    0.875   191.56
1818.27    0.873   192.16
1819.27    0.871   192.76
1820.27    0.869   193.36
1821.27    0.867   193.96
1822.27    0.865   194.57
1823.27    0.863   195.18
1824.27    0.861   195.79
1825.27    0.859   196.41
1826.27    0.857   197.03
1827.27    0.855   197.65
1828.27    0.853   198.27
1829.27    0.851   198.90
1830.27    0.850   199.53
1831.27    0.848   200.16
1832.27    0.846   200.79
1833.27    0.845   201.43
1834.27    0.843   202.07
1835.27    0.841   202.71
1836.27    0.840   203.36
1837.27    0.839   204.00
1838.27    0.837   204.65
1839.27    0.836   205.30
1840.27    0.835   205.95
1841.27    0.833   206.61
1842.27    0.832   207.26
1843.27    0.831   207.92
1844.27    0.830   208.58
1845.27    0.829   209.24
1846.27    0.828   209.91
1847.27    0.827   210.57
1848.27    0.826   211.24
1849.27    0.826   211.90
1850.27    0.825   212.57
1851.27    0.824   213.24
1852.27    0.824   213.91
1853.27    0.823   214.58
1854.27    0.823   215.26
1855.27    0.822   215.93
1856.27    0.822   216.60
1857.27    0.822   217.27
1858.27    0.822   217.95
1859.27    0.822   218.62
1860.27    0.822   219.30
1861.27    0.822   219.97
1862.27    0.822   220.64
1863.27    0.822   221.32
1864.27    0.822   221.99
1865.27    0.823   222.66
1866.27    0.823   223.34
1867.27    0.824   224.01
1868.27    0.824   224.68
1869.27    0.825   225.35
1870.27    0.826   226.02
1871.27    0.826   226.68
1872.27    0.827   227.35
1873.27    0.828   228.01
1874.27    0.829   228.68
1875.27    0.830   229.34
1876.27    0.831   230.00
1877.27    0.833   230.65
1878.27    0.834   231.31
1879.27    0.835   231.96
1880.27    0.837   232.61
1881.27    0.838   233.26
1882.27    0.840   233.91
1883.27    0.841   234.56
1884.27    0.843   235.20
1885.27    0.845   235.84
1886.27    0.847   236.47
1887.27    0.848   237.11
1888.27    0.850   237.74
1889.27    0.852   238.37
1890.27    0.855   238.99
1891.27    0.857   239.61
1892.27    0.859   240.23
1893.27    0.861   240.85
1894.27    0.864   241.46
1895.27    0.866   242.07
1896.27    0.868   242.67
1897.27    0.871   243.27
1898.27    0.873   243.87
1899.27    0.876   244.47
1900.27    0.879   245.06
1901.27    0.882   245.65
1902.27    0.884   246.23
1903.27    0.887   246.81
1904.27    0.890   247.39
1905.27    0.893   247.96
1906.27    0.896   248.53
1907.27    0.899   249.09
1908.27    0.902   249.65
1909.27    0.906   250.21
1910.27    0.909   250.76
1911.27    0.912   251.31
1912.27    0.915   251.86
1913.27    0.919   252.40
1914.27    0.922   252.94
1915.27    0.926   253.47
1916.27    0.929   254.00
1917.27    0.933   254.52
1918.27    0.936   255.04
1919.27    0.940   255.56
1920.27    0.944   256.07
1921.27    0.947   256.58
1922.27    0.951   257.09
1923.27    0.955   257.59
1924.27    0.959   258.09
1925.27    0.963   258.58
1926.27    0.967   259.07
1927.27    0.971   259.55
1928.27    0.975   260.03
1929.27    0.979   260.51
1930.27    0.983   260.99
1931.27    0.987   261.45
1932.27    0.991   261.92
1933.27    0.995   262.38
1934.27    0.999   262.84
1935.27    1.003   263.29
1936.27    1.007   263.74
1937.27    1.012   264.19
1938.27    1.016   264.63
1939.27    1.020   265.07
1940.27    1.025   265.51
1941.27    1.029   265.94
1942.27    1.033   266.37
1943.27    1.038   266.79
1944.27    1.042   267.21
1945.27    1.046   267.63
1946.27    1.051   268.05
1947.27    1.055   268.46
1948.27    1.060   268.86
1949.27    1.064   269.27
1950.27    1.069   269.67
1951.27    1.073   270.06
1952.27    1.078   270.46
1953.27    1.082   270.85
1954.27    1.087   271.23
1955.27    1.091   271.62
1956.27    1.096   272.00
1957.27    1.101   272.38
1958.27    1.105   272.75
1959.27    1.110   273.12
1960.27    1.114   273.49
1961.27    1.119   273.86
1962.27    1.124   274.22
1963.27    1.128   274.58
1964.27    1.133   274.93
1965.27    1.137   275.29
1966.27    1.142   275.64
1967.27    1.147   275.98
1968.27    1.151   276.33
1969.27    1.156   276.67
1970.27    1.161   277.01
1971.27    1.165   277.35
1972.27    1.170   277.68
1973.27    1.175   278.01
1974.27    1.179   278.34
1975.27    1.184   278.67
1976.27    1.189   278.99
1977.27    1.193   279.31
1978.27    1.198   279.63
1979.27    1.203   279.94
1980.27    1.207   280.26
1981.27    1.212   280.57
1982.27    1.216   280.88
1983.27    1.221   281.18
1984.27    1.226   281.49
1985.27    1.230   281.79
1986.27    1.235   282.09
1987.27    1.239   282.39
1988.27    1.244   282.68
1989.27    1.249   282.98
1990.27    1.253   283.27
1991.27    1.258   283.56
1992.27    1.262   283.84
1993.27    1.267   284.13
1994.27    1.271   284.41
1995.27    1.276   284.69
1996.27    1.280   284.97
1997.27    1.285   285.25
1998.27    1.289   285.52
1999.27    1.294   285.79
2000.27    1.298   286.06
2001.27    1.303   286.33
2002.27    1.307   286.60
2003.27    1.311   286.87
2004.27    1.316   287.13
2005.27    1.320   287.39
2006.27    1.324   287.65
2007.27    1.329   287.91
2008.27    1.333   288.17
2009.27    1.337   288.42
2010.27    1.341   288.68
2011.27    1.346   288.93
2012.27    1.350   289.18
2013.27    1.354   289.43
2014.27    1.358   289.68
2015.27    1.362   289.92
2016.27    1.367   290.17
2017.27    1.371   290.41
2018.27    1.375   290.65
2019.27    1.379   290.89
2020.27    1.383   291.13
2021.27    1.387   291.37
2022.27    1.391   291.60
2023.27    1.395   291.84
2024.27    1.399   292.07
2025.27    1.403   292.30
2026.27    1.406   292.53
2027.27    1.410   292.76
2028.27    1.414   292.99
2029.27    1.418   293.22
2030.27    1.422   293.45
2031.27    1.425   293.67
2032.27    1.429   293.89
2033.27    1.433   294.12
2034.27    1.436   294.34
2035.27    1.440   294.56
2036.27    1.444   294.78
2037.27    1.447   294.99
2038.27    1.451   295.21
2039.27    1.454   295.43
2040.27    1.457   295.64
2041.27    1.461   295.85
2042.27    1.464   296.07
2043.27    1.468   296.28
2044.27    1.471   296.49
2045.27    1.474   296.70
2046.27    1.477   296.91
2047.27    1.481   297.12
2048.27    1.484   297.32
2049.27    1.487   297.53
2050.27    1.490   297.74
2051.27    1.493   297.94
2052.27    1.496   298.14
2053.27    1.499   298.35
2054.27    1.502   298.55
2055.27    1.505   298.75
2056.27    1.508   298.95
2057.27    1.510   299.15
2058.27    1.513   299.35
2059.27    1.516   299.55
2060.27    1.518   299.75
2061.27    1.521   299.94
2062.27    1.524   300.14
2063.27    1.526   300.34
2064.27    1.529   300.53
2065.27    1.531   300.73
2066.27    1.533   300.92
2067.27    1.536   301.11
2068.27    1.538   301.31
2069.27    1.540   301.50
2070.27    1.543   301.69
2071.27    1.545   301.88
2072.27    1.547   302.07
2073.27    1.549   302.26
2074.27    1.551   302.45
2075.27    1.553   302.64
2076.27    1.555   302.83
2077.27    1.557   303.02
2078.27    1.558   303.20
2079.27    1.560   303.39
2080.27    1.562   303.58
2081.27    1.563   303.76
2082.27    1.565   303.95
2083.27    1.566   304.14
2084.27    1.568   304.32
2085.27    1.569   304.51
2086.27    1.571   304.69
2087.27    1.572   304.88
2088.27    1.573   305.06
2089.27    1.574   305.24
2090.27    1.575   305.43
2091.27    1.577   305.61
2092.27    1.578   305.79
2093.27    1.578   305.98
2094.27    1.579   306.16
2095.27    1.580   306.34
2096.27    1.581   306.52
2097.27    1.582   306.71
2098.27    1.582   306.89
2099.27    1.583   307.07
2100.27    1.583   307.25
2101.27    1.584   307.43
2102.27    1.584   307.61
2103.27    1.584   307.79
2104.27    1.584   307.98
2105.27    1.584   308.16
2106.27    1.585   308.34
2107.27    1.585   308.52
2108.27    1.584   308.70
2109.27    1.584   308.88
2110.27    1.584   309.06
2111.27    1.584   309.25
2112.27    1.583   309.43
2113.27    1.583   309.61
2114.27    1.582   309.79
2115.27    1.582   309.97
2116.27    1.581   310.15
2117.27    1.580   310.34
2118.27    1.579   310.52
2119.27    1.578   310.70
2120.27    1.577   310.88
2121.27    1.576   311.07
2122.27    1.575   311.25
2123.27    1.574   311.43
2124.27    1.572   311.62
2125.27    1.571   311.80
2126.27    1.569   311.99
2127.27    1.568   312.17
2128.27    1.566   312.36
2129.27    1.564   312.54
2130.27    1.562   312.73
2131.27    1.560   312.92
2132.27    1.558   313.10
2133.27    1.556   313.29
2134.27    1.554   313.48
2135.27    1.551   313.67
2136.27    1.549   313.86
2137.27    1.546   314.05
2138.27    1.543   314.24
2139.27    1.541   314.43
2140.27    1.538   314.62
2141.27    1.535   314.82
2142.27    1.532   315.01
2143.27    1.528   315.20
2144.27    1.525   315.40
2145.27    1.522   315.60
2146.27    1.518   315.79
2147.27    1.514   315.99
2148.27    1.511   316.19
2149.27    1.507   316.39
2150.27    1.503   316.59
2151.27    1.498   316.79
2152.27    1.494   317.00
2153.27    1.490   317.20
2154.27    1.485   317.41
2155.27    1.481   317.61
2156.27    1.476   317.82
2157.27    1.471   318.03
2158.27    1.466   318.24
2159.27    1.461   318.45
2160.27    1.455   318.67
2161.27    1.450   318.88
2162.27    1.444   319.10
2163.27    1.439   319.32
2164.27    1.433   319.54
2165.27    1.427   319.76
2166.27    1.421   319.99
2167.27    1.414   320.21
2168.27    1.408   320.44
2169.27    1.401   320.67
2170.27    1.395   320.91
2171.27    1.388   321.14
2172.27    1.381   321.38
2173.27    1.373   321.62
2174.27    1.366   321.86
2175.27    1.359   322.11
2176.27    1.351   322.36
2177.27    1.343   322.61
2178.27    1.335   322.86
2179.27    1.327   323.12
2180.27    1.318   323.38
2181.27    1.310   323.64
2182.27    1.301   323.91
2183.27    1.292   324.18
2184.27    1.283   324.45
2185.27    1.273   324.73
2186.27    1.264   325.02
2187.27    1.254   325.30
2188.27    1.244   325.59
2189.27    1.234   325.89
2190.27    1.224   326.19
2191.27    1.213   326.50
2192.27    1.203   326.81
2193.27    1.192   327.13
2194.27    1.180   327.45
2195.27    1.169   327.78
2196.27    1.157   328.12
2197.27    1.146   328.46
2198.27    1.134   328.81
2199.27    1.121   329.17
2200.27    1.109   329.54
2201.27    1.096   329.91
2202.27    1.083   330.29
2203.27    1.070   330.69
2204.27    1.056   331.09
2205.27    1.042   331.50
2206.27    1.029   331.93
2207.27    1.014   332.36
2208.27    1.000   332.81
2209.27    0.985   333.28
2210.27    0.970   333.75
2211.27    0.955   334.24
2212.27    0.939   334.75
2213.27    0.923   335.28
2214.27    0.907   335.82
2215.27    0.891   336.38
2216.27    0.874   336.97
2217.27    0.858   337.57
2218.27    0.840   338.20
2219.27    0.823   338.86
2220.27    0.805   339.55
2221.27    0.787   340.27
2222.27    0.769   341.02
2223.27    0.751   341.81
2224.27    0.732   342.63
2225.27    0.713   343.50
2226.27    0.694   344.42
2227.27    0.675   345.40
2228.27    0.655   346.42
2229.27    0.636   347.52
2230.27    0.616   348.68
2231.27    0.596   349.92
2232.27    0.576   351.25
2233.27    0.555   352.67
2234.27    0.535   354.21
2235.27    0.515   355.86
2236.27    0.495   357.65
2237.27    0.474   359.59
2238.27    0.455     1.70
2239.27    0.435     4.00
2240.27    0.416     6.52
2241.27    0.397     9.28
2242.27    0.379    12.31
2243.27    0.361    15.64
2244.27    0.345    19.30
2245.27    0.330    23.31
2246.27    0.316    27.68
2247.27    0.304    32.44
2248.27    0.293    37.56
2249.27    0.285    43.01
2250.27    0.279    48.74
2251.27    0.276    54.65
2252.27    0.275    60.65
2253.27    0.278    66.61
2254.27    0.282    72.43
2255.27    0.289    78.01
2256.27    0.299    83.29
2257.27    0.310    88.21
2258.27    0.323    92.77
2259.27    0.337    96.95
2260.27    0.353   100.78
2261.27    0.369   104.28
2262.27    0.387   107.47
2263.27    0.404   110.38
2264.27    0.423   113.04
2265.27    0.441   115.49
2266.27    0.460   117.73
2267.27    0.478   119.80
2268.27    0.497   121.71
2269.27    0.516   123.49
2270.27    0.534   125.14
2271.27    0.552   126.69
2272.27    0.570   128.14
2273.27    0.587   129.50
2274.27    0.604   130.78
2275.27    0.621   131.99
2276.27    0.637   133.14
2277.27    0.653   134.24
2278.27    0.668   135.28
2279.27    0.683   136.28
2280.27    0.698   137.23
2281.27    0.712   138.15
2282.27    0.725   139.03
2283.27    0.738   139.88
2284.27    0.751   140.70
2285.27    0.763   141.49
2286.27    0.775   142.26
2287.27    0.786   143.01
2288.27    0.797   143.74
2289.27    0.807   144.44
2290.27    0.817   145.14
2291.27    0.826   145.81
2292.27    0.835   146.47
2293.27    0.844   147.11
2294.27    0.852   147.75
2295.27    0.860   148.37
2296.27    0.868   148.98
2297.27    0.875   149.58
2298.27    0.881   150.17
2299.27    0.888   150.75
2300.27    0.894   151.32
2301.27    0.899   151.89
2302.27    0.905   152.45
2303.27    0.910   153.00
2304.27    0.915   153.55






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 17:59:50



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