Double Star Calculator - Orbit

Orbital Elements for STF1338AB
WDS: STF1338AB WDS ID/Discoverer
P: 381.500 Orbital period (years)
a: 1.48 Semi-major axis (arcseconds)
i: 29.8 Inclination (degrees)
Ω: 164.4 Longitude of ascending node (degrees)
T: 2001.400 Epoch of periastron passage (year)
e: 0.202 Eccentricity
ω: 120.4 Longitude of periastron (degrees)
Start-Year: 1834.25 Year
End-Year: 2215.75 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1338AB
Position: 092059.40+381117.9 Epoch-2000 right ascension and declination
WDS-ID: 09210+3811 WDS designation
Discoverer Code: STF1338AB Discover designation and components
ADS number: 7307 Aitken Double Star catalog
HD number: 80441 HD catalog number
Hipparcos number: 45858 Hipparcos catalog number
V1: 6.72 Magnitude of the primary
V2: 7.08 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 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: Sca2023a Reference

Double Star Orbit for STF1338AB



WDS 6th Orbit including measures of STF1338AB

-- 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 STF1338AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.194   323.32
--------------------------
1834.25    1.653   124.03
1835.25    1.655   124.67
1836.25    1.656   125.31
1837.25    1.657   125.95
1838.25    1.658   126.59
1839.25    1.660   127.23
1840.25    1.661   127.87
1841.25    1.662   128.50
1842.25    1.663   129.14
1843.25    1.663   129.77
1844.25    1.664   130.41
1845.25    1.665   131.04
1846.25    1.666   131.68
1847.25    1.666   132.31
1848.25    1.667   132.94
1849.25    1.667   133.57
1850.25    1.668   134.21
1851.25    1.668   134.84
1852.25    1.668   135.47
1853.25    1.668   136.10
1854.25    1.668   136.73
1855.25    1.668   137.36
1856.25    1.668   137.99
1857.25    1.668   138.63
1858.25    1.668   139.26
1859.25    1.667   139.89
1860.25    1.667   140.52
1861.25    1.666   141.15
1862.25    1.665   141.79
1863.25    1.665   142.42
1864.25    1.664   143.05
1865.25    1.663   143.69
1866.25    1.662   144.32
1867.25    1.661   144.96
1868.25    1.660   145.60
1869.25    1.658   146.24
1870.25    1.657   146.88
1871.25    1.655   147.52
1872.25    1.654   148.16
1873.25    1.652   148.80
1874.25    1.650   149.45
1875.25    1.648   150.09
1876.25    1.646   150.74
1877.25    1.644   151.39
1878.25    1.642   152.04
1879.25    1.639   152.69
1880.25    1.637   153.35
1881.25    1.634   154.00
1882.25    1.632   154.66
1883.25    1.629   155.32
1884.25    1.626   155.99
1885.25    1.623   156.65
1886.25    1.620   157.32
1887.25    1.617   157.99
1888.25    1.613   158.66
1889.25    1.610   159.34
1890.25    1.606   160.02
1891.25    1.603   160.70
1892.25    1.599   161.39
1893.25    1.595   162.08
1894.25    1.591   162.77
1895.25    1.587   163.46
1896.25    1.583   164.16
1897.25    1.578   164.87
1898.25    1.574   165.57
1899.25    1.569   166.28
1900.25    1.565   167.00
1901.25    1.560   167.72
1902.25    1.555   168.44
1903.25    1.550   169.17
1904.25    1.545   169.91
1905.25    1.539   170.65
1906.25    1.534   171.39
1907.25    1.529   172.14
1908.25    1.523   172.89
1909.25    1.517   173.65
1910.25    1.511   174.42
1911.25    1.506   175.19
1912.25    1.500   175.97
1913.25    1.493   176.75
1914.25    1.487   177.54
1915.25    1.481   178.34
1916.25    1.474   179.15
1917.25    1.468   179.96
1918.25    1.461   180.78
1919.25    1.455   181.60
1920.25    1.448   182.44
1921.25    1.441   183.28
1922.25    1.434   184.13
1923.25    1.427   184.99
1924.25    1.420   185.86
1925.25    1.412   186.73
1926.25    1.405   187.62
1927.25    1.398   188.51
1928.25    1.390   189.42
1929.25    1.383   190.33
1930.25    1.375   191.25
1931.25    1.367   192.19
1932.25    1.360   193.13
1933.25    1.352   194.09
1934.25    1.344   195.06
1935.25    1.336   196.03
1936.25    1.328   197.02
1937.25    1.320   198.02
1938.25    1.312   199.04
1939.25    1.304   200.06
1940.25    1.296   201.10
1941.25    1.288   202.16
1942.25    1.280   203.22
1943.25    1.272   204.30
1944.25    1.264   205.39
1945.25    1.256   206.50
1946.25    1.248   207.62
1947.25    1.240   208.75
1948.25    1.233   209.90
1949.25    1.225   211.06
1950.25    1.217   212.24
1951.25    1.209   213.44
1952.25    1.201   214.64
1953.25    1.194   215.87
1954.25    1.186   217.11
1955.25    1.179   218.37
1956.25    1.171   219.64
1957.25    1.164   220.93
1958.25    1.157   222.23
1959.25    1.150   223.55
1960.25    1.143   224.89
1961.25    1.137   226.24
1962.25    1.130   227.61
1963.25    1.124   228.99
1964.25    1.117   230.39
1965.25    1.111   231.80
1966.25    1.106   233.23
1967.25    1.100   234.68
1968.25    1.095   236.14
1969.25    1.089   237.61
1970.25    1.084   239.10
1971.25    1.080   240.60
1972.25    1.075   242.11
1973.25    1.071   243.64
1974.25    1.067   245.17
1975.25    1.063   246.72
1976.25    1.060   248.28
1977.25    1.057   249.85
1978.25    1.054   251.43
1979.25    1.051   253.01
1980.25    1.049   254.61
1981.25    1.047   256.21
1982.25    1.045   257.81
1983.25    1.044   259.42
1984.25    1.043   261.04
1985.25    1.042   262.66
1986.25    1.041   264.28
1987.25    1.041   265.90
1988.25    1.041   267.52
1989.25    1.041   269.14
1990.25    1.042   270.76
1991.25    1.043   272.37
1992.25    1.044   273.99
1993.25    1.046   275.60
1994.25    1.047   277.20
1995.25    1.049   278.80
1996.25    1.052   280.39
1997.25    1.054   281.98
1998.25    1.057   283.55
1999.25    1.060   285.12
2000.25    1.063   286.68
2001.25    1.067   288.23
2002.25    1.070   289.77
2003.25    1.074   291.30
2004.25    1.078   292.82
2005.25    1.082   294.32
2006.25    1.087   295.82
2007.25    1.091   297.30
2008.25    1.096   298.77
2009.25    1.101   300.22
2010.25    1.105   301.67
2011.25    1.110   303.10
2012.25    1.116   304.52
2013.25    1.121   305.92
2014.25    1.126   307.31
2015.25    1.132   308.69
2016.25    1.137   310.06
2017.25    1.142   311.41
2018.25    1.148   312.75
2019.25    1.154   314.08
2020.25    1.159   315.39
2021.25    1.165   316.69
2022.25    1.170   317.98
2023.25    1.176   319.25
2024.25    1.182   320.52
2025.25    1.187   321.77
2026.25    1.193   323.01
2027.25    1.199   324.24
2028.25    1.204   325.46
2029.25    1.210   326.66
2030.25    1.215   327.86
2031.25    1.220   329.04
2032.25    1.226   330.22
2033.25    1.231   331.38
2034.25    1.236   332.53
2035.25    1.242   333.68
2036.25    1.247   334.81
2037.25    1.252   335.94
2038.25    1.257   337.06
2039.25    1.261   338.16
2040.25    1.266   339.26
2041.25    1.271   340.36
2042.25    1.276   341.44
2043.25    1.280   342.51
2044.25    1.285   343.58
2045.25    1.289   344.64
2046.25    1.293   345.70
2047.25    1.297   346.74
2048.25    1.301   347.79
2049.25    1.305   348.82
2050.25    1.309   349.85
2051.25    1.313   350.87
2052.25    1.317   351.88
2053.25    1.321   352.89
2054.25    1.324   353.90
2055.25    1.328   354.90
2056.25    1.331   355.89
2057.25    1.334   356.88
2058.25    1.337   357.87
2059.25    1.340   358.85
2060.25    1.343   359.82
2061.25    1.346     0.79
2062.25    1.349     1.76
2063.25    1.352     2.72
2064.25    1.355     3.68
2065.25    1.357     4.64
2066.25    1.360     5.59
2067.25    1.362     6.54
2068.25    1.365     7.48
2069.25    1.367     8.42
2070.25    1.369     9.36
2071.25    1.372    10.30
2072.25    1.374    11.23
2073.25    1.376    12.16
2074.25    1.378    13.09
2075.25    1.380    14.01
2076.25    1.382    14.93
2077.25    1.383    15.85
2078.25    1.385    16.77
2079.25    1.387    17.68
2080.25    1.389    18.59
2081.25    1.390    19.50
2082.25    1.392    20.41
2083.25    1.394    21.32
2084.25    1.395    22.22
2085.25    1.397    23.12
2086.25    1.398    24.02
2087.25    1.400    24.92
2088.25    1.401    25.81
2089.25    1.403    26.71
2090.25    1.404    27.60
2091.25    1.405    28.49
2092.25    1.407    29.38
2093.25    1.408    30.27
2094.25    1.409    31.15
2095.25    1.411    32.04
2096.25    1.412    32.92
2097.25    1.413    33.80
2098.25    1.414    34.68
2099.25    1.416    35.55
2100.25    1.417    36.43
2101.25    1.418    37.30
2102.25    1.420    38.18
2103.25    1.421    39.05
2104.25    1.422    39.92
2105.25    1.423    40.78
2106.25    1.425    41.65
2107.25    1.426    42.51
2108.25    1.427    43.38
2109.25    1.429    44.24
2110.25    1.430    45.10
2111.25    1.431    45.96
2112.25    1.433    46.81
2113.25    1.434    47.67
2114.25    1.436    48.52
2115.25    1.437    49.37
2116.25    1.438    50.22
2117.25    1.440    51.07
2118.25    1.441    51.92
2119.25    1.443    52.76
2120.25    1.444    53.61
2121.25    1.446    54.45
2122.25    1.447    55.29
2123.25    1.449    56.12
2124.25    1.451    56.96
2125.25    1.452    57.79
2126.25    1.454    58.63
2127.25    1.456    59.46
2128.25    1.457    60.28
2129.25    1.459    61.11
2130.25    1.461    61.93
2131.25    1.463    62.76
2132.25    1.465    63.58
2133.25    1.466    64.39
2134.25    1.468    65.21
2135.25    1.470    66.02
2136.25    1.472    66.84
2137.25    1.474    67.64
2138.25    1.476    68.45
2139.25    1.478    69.26
2140.25    1.480    70.06
2141.25    1.482    70.86
2142.25    1.484    71.66
2143.25    1.486    72.46
2144.25    1.489    73.25
2145.25    1.491    74.04
2146.25    1.493    74.83
2147.25    1.495    75.62
2148.25    1.498    76.40
2149.25    1.500    77.18
2150.25    1.502    77.96
2151.25    1.504    78.74
2152.25    1.507    79.52
2153.25    1.509    80.29
2154.25    1.512    81.06
2155.25    1.514    81.83
2156.25    1.516    82.59
2157.25    1.519    83.35
2158.25    1.521    84.11
2159.25    1.524    84.87
2160.25    1.526    85.63
2161.25    1.529    86.38
2162.25    1.531    87.13
2163.25    1.534    87.88
2164.25    1.536    88.62
2165.25    1.539    89.37
2166.25    1.541    90.11
2167.25    1.544    90.85
2168.25    1.547    91.58
2169.25    1.549    92.31
2170.25    1.552    93.05
2171.25    1.554    93.77
2172.25    1.557    94.50
2173.25    1.560    95.22
2174.25    1.562    95.94
2175.25    1.565    96.66
2176.25    1.567    97.38
2177.25    1.570    98.09
2178.25    1.573    98.80
2179.25    1.575    99.51
2180.25    1.578   100.22
2181.25    1.580   100.93
2182.25    1.583   101.63
2183.25    1.585   102.33
2184.25    1.588   103.03
2185.25    1.590   103.72
2186.25    1.593   104.41
2187.25    1.595   105.11
2188.25    1.598   105.80
2189.25    1.600   106.48
2190.25    1.603   107.17
2191.25    1.605   107.85
2192.25    1.607   108.53
2193.25    1.610   109.21
2194.25    1.612   109.89
2195.25    1.614   110.56
2196.25    1.617   111.23
2197.25    1.619   111.91
2198.25    1.621   112.57
2199.25    1.623   113.24
2200.25    1.626   113.91
2201.25    1.628   114.57
2202.25    1.630   115.23
2203.25    1.632   115.89
2204.25    1.634   116.55
2205.25    1.636   117.21
2206.25    1.638   117.87
2207.25    1.639   118.52
2208.25    1.641   119.17
2209.25    1.643   119.83
2210.25    1.645   120.48
2211.25    1.646   121.12
2212.25    1.648   121.77
2213.25    1.650   122.42
2214.25    1.651   123.06
2215.25    1.653   123.71






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 16:17:33



www.stella-vega.de