Double Star Calculator - Orbit

Orbital Elements for STF2275
WDS: STF2275 WDS ID/Discoverer
P: 525.460 Orbital period (years)
a: 0.6786 Semi-major axis (arcseconds)
i: 77.95 Inclination (degrees)
Ω: 131.6 Longitude of ascending node (degrees)
T: 2012.872 Epoch of periastron passage (year)
e: 0.4767 Eccentricity
ω: 142.76 Longitude of periastron (degrees)
Start-Year: 1762.27 Year
End-Year: 2287.73 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2275
Position: 180317.38+392058.5 Epoch-2000 right ascension and declination
WDS-ID: 18033+3921 WDS designation
Discoverer Code: STF2275 Discover designation and components
ADS number: 11023 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 88432 Hipparcos catalog number
V1: 10.11 Magnitude of the primary
V2: 10.16 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1953 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: Pop2000a Reference

Double Star Orbit for STF2275



WDS 6th Orbit including measures of STF2275

-- 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 STF2275
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.367   309.90
--------------------------
1762.27    0.839   123.62
1763.27    0.841   123.70
1764.27    0.843   123.78
1765.27    0.846   123.86
1766.27    0.848   123.94
1767.27    0.850   124.02
1768.27    0.852   124.10
1769.27    0.854   124.18
1770.27    0.856   124.26
1771.27    0.858   124.34
1772.27    0.860   124.42
1773.27    0.862   124.50
1774.27    0.864   124.58
1775.27    0.866   124.65
1776.27    0.868   124.73
1777.27    0.870   124.81
1778.27    0.871   124.88
1779.27    0.873   124.96
1780.27    0.875   125.04
1781.27    0.877   125.11
1782.27    0.878   125.19
1783.27    0.880   125.26
1784.27    0.881   125.34
1785.27    0.883   125.41
1786.27    0.884   125.48
1787.27    0.886   125.56
1788.27    0.887   125.63
1789.27    0.888   125.71
1790.27    0.890   125.78
1791.27    0.891   125.85
1792.27    0.892   125.92
1793.27    0.893   126.00
1794.27    0.894   126.07
1795.27    0.896   126.14
1796.27    0.897   126.21
1797.27    0.898   126.29
1798.27    0.899   126.36
1799.27    0.900   126.43
1800.27    0.900   126.50
1801.27    0.901   126.57
1802.27    0.902   126.64
1803.27    0.903   126.71
1804.27    0.904   126.79
1805.27    0.904   126.86
1806.27    0.905   126.93
1807.27    0.905   127.00
1808.27    0.906   127.07
1809.27    0.907   127.14
1810.27    0.907   127.21
1811.27    0.907   127.28
1812.27    0.908   127.35
1813.27    0.908   127.42
1814.27    0.908   127.49
1815.27    0.909   127.56
1816.27    0.909   127.63
1817.27    0.909   127.70
1818.27    0.909   127.77
1819.27    0.909   127.84
1820.27    0.909   127.91
1821.27    0.909   127.98
1822.27    0.909   128.05
1823.27    0.909   128.12
1824.27    0.909   128.19
1825.27    0.908   128.26
1826.27    0.908   128.33
1827.27    0.908   128.40
1828.27    0.908   128.47
1829.27    0.907   128.54
1830.27    0.907   128.61
1831.27    0.906   128.68
1832.27    0.906   128.75
1833.27    0.905   128.82
1834.27    0.904   128.90
1835.27    0.904   128.97
1836.27    0.903   129.04
1837.27    0.902   129.11
1838.27    0.901   129.18
1839.27    0.900   129.25
1840.27    0.899   129.32
1841.27    0.898   129.39
1842.27    0.897   129.47
1843.27    0.896   129.54
1844.27    0.895   129.61
1845.27    0.894   129.68
1846.27    0.893   129.75
1847.27    0.891   129.83
1848.27    0.890   129.90
1849.27    0.888   129.97
1850.27    0.887   130.05
1851.27    0.885   130.12
1852.27    0.884   130.19
1853.27    0.882   130.27
1854.27    0.881   130.34
1855.27    0.879   130.42
1856.27    0.877   130.49
1857.27    0.875   130.57
1858.27    0.873   130.64
1859.27    0.871   130.72
1860.27    0.869   130.80
1861.27    0.867   130.87
1862.27    0.865   130.95
1863.27    0.863   131.03
1864.27    0.860   131.11
1865.27    0.858   131.19
1866.27    0.856   131.26
1867.27    0.853   131.34
1868.27    0.851   131.42
1869.27    0.848   131.50
1870.27    0.846   131.58
1871.27    0.843   131.67
1872.27    0.840   131.75
1873.27    0.837   131.83
1874.27    0.835   131.91
1875.27    0.832   132.00
1876.27    0.829   132.08
1877.27    0.826   132.16
1878.27    0.822   132.25
1879.27    0.819   132.34
1880.27    0.816   132.42
1881.27    0.813   132.51
1882.27    0.809   132.60
1883.27    0.806   132.69
1884.27    0.802   132.78
1885.27    0.799   132.87
1886.27    0.795   132.96
1887.27    0.791   133.05
1888.27    0.788   133.14
1889.27    0.784   133.24
1890.27    0.780   133.33
1891.27    0.776   133.43
1892.27    0.772   133.52
1893.27    0.768   133.62
1894.27    0.764   133.72
1895.27    0.759   133.82
1896.27    0.755   133.92
1897.27    0.751   134.02
1898.27    0.746   134.13
1899.27    0.742   134.23
1900.27    0.737   134.34
1901.27    0.732   134.44
1902.27    0.727   134.55
1903.27    0.723   134.66
1904.27    0.718   134.77
1905.27    0.713   134.89
1906.27    0.708   135.00
1907.27    0.702   135.12
1908.27    0.697   135.24
1909.27    0.692   135.36
1910.27    0.687   135.48
1911.27    0.681   135.60
1912.27    0.675   135.73
1913.27    0.670   135.86
1914.27    0.664   135.99
1915.27    0.658   136.12
1916.27    0.653   136.25
1917.27    0.647   136.39
1918.27    0.641   136.53
1919.27    0.634   136.67
1920.27    0.628   136.82
1921.27    0.622   136.97
1922.27    0.616   137.12
1923.27    0.609   137.27
1924.27    0.603   137.43
1925.27    0.596   137.59
1926.27    0.589   137.76
1927.27    0.582   137.93
1928.27    0.576   138.10
1929.27    0.569   138.27
1930.27    0.562   138.46
1931.27    0.554   138.64
1932.27    0.547   138.83
1933.27    0.540   139.03
1934.27    0.532   139.23
1935.27    0.525   139.44
1936.27    0.517   139.65
1937.27    0.510   139.87
1938.27    0.502   140.10
1939.27    0.494   140.33
1940.27    0.486   140.57
1941.27    0.478   140.82
1942.27    0.470   141.08
1943.27    0.462   141.35
1944.27    0.453   141.62
1945.27    0.445   141.91
1946.27    0.436   142.21
1947.27    0.428   142.52
1948.27    0.419   142.84
1949.27    0.410   143.18
1950.27    0.401   143.53
1951.27    0.392   143.90
1952.27    0.383   144.28
1953.27    0.374   144.69
1954.27    0.365   145.11
1955.27    0.356   145.55
1956.27    0.346   146.02
1957.27    0.337   146.52
1958.27    0.328   147.04
1959.27    0.318   147.60
1960.27    0.308   148.19
1961.27    0.299   148.82
1962.27    0.289   149.49
1963.27    0.279   150.21
1964.27    0.269   150.98
1965.27    0.259   151.81
1966.27    0.249   152.71
1967.27    0.239   153.68
1968.27    0.229   154.74
1969.27    0.219   155.89
1970.27    0.209   157.16
1971.27    0.199   158.55
1972.27    0.189   160.09
1973.27    0.179   161.79
1974.27    0.169   163.70
1975.27    0.160   165.84
1976.27    0.150   168.26
1977.27    0.141   170.99
1978.27    0.132   174.10
1979.27    0.123   177.66
1980.27    0.115   181.73
1981.27    0.108   186.40
1982.27    0.101   191.73
1983.27    0.095   197.76
1984.27    0.090   204.51
1985.27    0.087   211.88
1986.27    0.085   219.71
1987.27    0.085   227.74
1988.27    0.086   235.68
1989.27    0.089   243.25
1990.27    0.093   250.24
1991.27    0.099   256.55
1992.27    0.105   262.15
1993.27    0.112   267.07
1994.27    0.120   271.38
1995.27    0.128   275.13
1996.27    0.137   278.43
1997.27    0.146   281.32
1998.27    0.155   283.87
1999.27    0.165   286.14
2000.27    0.174   288.16
2001.27    0.184   289.97
2002.27    0.193   291.60
2003.27    0.202   293.09
2004.27    0.212   294.44
2005.27    0.221   295.67
2006.27    0.230   296.81
2007.27    0.239   297.86
2008.27    0.248   298.84
2009.27    0.257   299.75
2010.27    0.265   300.60
2011.27    0.273   301.40
2012.27    0.282   302.15
2013.27    0.289   302.86
2014.27    0.297   303.54
2015.27    0.304   304.18
2016.27    0.311   304.79
2017.27    0.318   305.37
2018.27    0.325   305.93
2019.27    0.331   306.47
2020.27    0.337   306.99
2021.27    0.342   307.49
2022.27    0.348   307.98
2023.27    0.353   308.45
2024.27    0.357   308.91
2025.27    0.362   309.36
2026.27    0.366   309.80
2027.27    0.370   310.23
2028.27    0.373   310.65
2029.27    0.376   311.06
2030.27    0.379   311.46
2031.27    0.382   311.86
2032.27    0.384   312.26
2033.27    0.386   312.65
2034.27    0.388   313.04
2035.27    0.389   313.42
2036.27    0.391   313.80
2037.27    0.392   314.18
2038.27    0.392   314.55
2039.27    0.393   314.93
2040.27    0.393   315.31
2041.27    0.393   315.68
2042.27    0.393   316.06
2043.27    0.392   316.43
2044.27    0.392   316.81
2045.27    0.391   317.19
2046.27    0.390   317.57
2047.27    0.388   317.95
2048.27    0.387   318.33
2049.27    0.385   318.72
2050.27    0.383   319.12
2051.27    0.381   319.51
2052.27    0.379   319.91
2053.27    0.377   320.32
2054.27    0.374   320.73
2055.27    0.372   321.15
2056.27    0.369   321.57
2057.27    0.366   322.00
2058.27    0.363   322.43
2059.27    0.360   322.88
2060.27    0.356   323.33
2061.27    0.353   323.79
2062.27    0.349   324.26
2063.27    0.346   324.74
2064.27    0.342   325.23
2065.27    0.338   325.73
2066.27    0.335   326.24
2067.27    0.331   326.76
2068.27    0.327   327.30
2069.27    0.322   327.85
2070.27    0.318   328.41
2071.27    0.314   328.99
2072.27    0.310   329.59
2073.27    0.305   330.20
2074.27    0.301   330.83
2075.27    0.297   331.48
2076.27    0.292   332.14
2077.27    0.288   332.83
2078.27    0.283   333.54
2079.27    0.279   334.28
2080.27    0.274   335.04
2081.27    0.270   335.82
2082.27    0.265   336.63
2083.27    0.260   337.47
2084.27    0.256   338.34
2085.27    0.251   339.24
2086.27    0.247   340.17
2087.27    0.242   341.14
2088.27    0.238   342.15
2089.27    0.233   343.20
2090.27    0.229   344.28
2091.27    0.224   345.41
2092.27    0.220   346.58
2093.27    0.216   347.81
2094.27    0.211   349.08
2095.27    0.207   350.40
2096.27    0.203   351.77
2097.27    0.199   353.21
2098.27    0.195   354.70
2099.27    0.191   356.25
2100.27    0.188   357.86
2101.27    0.184   359.53
2102.27    0.181     1.27
2103.27    0.178     3.07
2104.27    0.174     4.94
2105.27    0.171     6.88
2106.27    0.169     8.88
2107.27    0.166    10.95
2108.27    0.164    13.08
2109.27    0.162    15.27
2110.27    0.160    17.52
2111.27    0.158    19.81
2112.27    0.156    22.16
2113.27    0.155    24.54
2114.27    0.154    26.96
2115.27    0.153    29.41
2116.27    0.153    31.88
2117.27    0.153    34.35
2118.27    0.153    36.83
2119.27    0.153    39.30
2120.27    0.154    41.75
2121.27    0.155    44.18
2122.27    0.156    46.58
2123.27    0.157    48.95
2124.27    0.159    51.26
2125.27    0.161    53.53
2126.27    0.163    55.74
2127.27    0.165    57.89
2128.27    0.168    59.98
2129.27    0.170    62.00
2130.27    0.173    63.96
2131.27    0.177    65.85
2132.27    0.180    67.68
2133.27    0.183    69.44
2134.27    0.187    71.13
2135.27    0.190    72.76
2136.27    0.194    74.32
2137.27    0.198    75.82
2138.27    0.202    77.27
2139.27    0.207    78.65
2140.27    0.211    79.98
2141.27    0.215    81.26
2142.27    0.220    82.48
2143.27    0.224    83.66
2144.27    0.229    84.78
2145.27    0.233    85.87
2146.27    0.238    86.91
2147.27    0.243    87.91
2148.27    0.248    88.87
2149.27    0.253    89.80
2150.27    0.258    90.68
2151.27    0.263    91.54
2152.27    0.268    92.36
2153.27    0.273    93.16
2154.27    0.278    93.92
2155.27    0.283    94.66
2156.27    0.288    95.37
2157.27    0.293    96.06
2158.27    0.298    96.72
2159.27    0.303    97.36
2160.27    0.309    97.98
2161.27    0.314    98.57
2162.27    0.319    99.15
2163.27    0.324    99.71
2164.27    0.330   100.25
2165.27    0.335   100.78
2166.27    0.340   101.29
2167.27    0.345   101.78
2168.27    0.351   102.26
2169.27    0.356   102.72
2170.27    0.361   103.17
2171.27    0.366   103.61
2172.27    0.372   104.04
2173.27    0.377   104.45
2174.27    0.382   104.85
2175.27    0.387   105.24
2176.27    0.392   105.62
2177.27    0.398   105.99
2178.27    0.403   106.36
2179.27    0.408   106.71
2180.27    0.413   107.05
2181.27    0.418   107.39
2182.27    0.424   107.71
2183.27    0.429   108.03
2184.27    0.434   108.34
2185.27    0.439   108.65
2186.27    0.444   108.94
2187.27    0.449   109.23
2188.27    0.454   109.52
2189.27    0.459   109.79
2190.27    0.465   110.07
2191.27    0.470   110.33
2192.27    0.475   110.59
2193.27    0.480   110.85
2194.27    0.485   111.09
2195.27    0.490   111.34
2196.27    0.495   111.58
2197.27    0.499   111.81
2198.27    0.504   112.04
2199.27    0.509   112.27
2200.27    0.514   112.49
2201.27    0.519   112.71
2202.27    0.524   112.92
2203.27    0.529   113.13
2204.27    0.533   113.33
2205.27    0.538   113.53
2206.27    0.543   113.73
2207.27    0.548   113.93
2208.27    0.552   114.12
2209.27    0.557   114.31
2210.27    0.562   114.49
2211.27    0.566   114.67
2212.27    0.571   114.85
2213.27    0.576   115.03
2214.27    0.580   115.20
2215.27    0.585   115.37
2216.27    0.589   115.54
2217.27    0.594   115.71
2218.27    0.598   115.87
2219.27    0.603   116.03
2220.27    0.607   116.19
2221.27    0.612   116.34
2222.27    0.616   116.50
2223.27    0.620   116.65
2224.27    0.625   116.80
2225.27    0.629   116.95
2226.27    0.633   117.09
2227.27    0.637   117.24
2228.27    0.642   117.38
2229.27    0.646   117.52
2230.27    0.650   117.65
2231.27    0.654   117.79
2232.27    0.658   117.93
2233.27    0.662   118.06
2234.27    0.666   118.19
2235.27    0.670   118.32
2236.27    0.674   118.45
2237.27    0.678   118.57
2238.27    0.682   118.70
2239.27    0.686   118.82
2240.27    0.690   118.94
2241.27    0.694   119.07
2242.27    0.698   119.19
2243.27    0.702   119.30
2244.27    0.705   119.42
2245.27    0.709   119.54
2246.27    0.713   119.65
2247.27    0.716   119.76
2248.27    0.720   119.88
2249.27    0.724   119.99
2250.27    0.727   120.10
2251.27    0.731   120.21
2252.27    0.734   120.31
2253.27    0.738   120.42
2254.27    0.741   120.53
2255.27    0.745   120.63
2256.27    0.748   120.74
2257.27    0.752   120.84
2258.27    0.755   120.94
2259.27    0.758   121.04
2260.27    0.762   121.14
2261.27    0.765   121.24
2262.27    0.768   121.34
2263.27    0.771   121.44
2264.27    0.774   121.53
2265.27    0.777   121.63
2266.27    0.781   121.73
2267.27    0.784   121.82
2268.27    0.787   121.91
2269.27    0.790   122.01
2270.27    0.793   122.10
2271.27    0.795   122.19
2272.27    0.798   122.28
2273.27    0.801   122.37
2274.27    0.804   122.46
2275.27    0.807   122.55
2276.27    0.810   122.64
2277.27    0.812   122.73
2278.27    0.815   122.82
2279.27    0.818   122.90
2280.27    0.820   122.99
2281.27    0.823   123.08
2282.27    0.825   123.16
2283.27    0.828   123.25
2284.27    0.830   123.33
2285.27    0.833   123.41
2286.27    0.835   123.50
2287.27    0.838   123.58






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 17:46:40



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