Double Star Calculator - Orbit

Orbital Elements for STF2262AB
WDS: STF2262AB WDS ID/Discoverer
P: 279.520 Orbital period (years)
a: 1.5855 Semi-major axis (arcseconds)
i: 63.47 Inclination (degrees)
Ω: 62.97 Longitude of ascending node (degrees)
T: 1833.510 Epoch of periastron passage (year)
e: 0.765 Eccentricity
ω: 53.98 Longitude of periastron (degrees)
Start-Year: 1885.24 Year
End-Year: 2164.76 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2262AB
Position: 180304.91-081048.9 Epoch-2000 right ascension and declination
WDS-ID: 18031-0811 WDS designation
Discoverer Code: STF2262AB Discover designation and components
ADS number: 11005 Aitken Double Star catalog
HD number: 164761 HD catalog number
Hipparcos number: 88404 Hipparcos catalog number
V1: 5.27 Magnitude of the primary
V2: 5.86 Magnitude of the secondary
Equinox: Equinox
Date: 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: FSU2025 Reference

Double Star Orbit for STF2262AB



WDS 6th Orbit including measures of STF2262AB

-- 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 STF2262AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.376   292.60
--------------------------
1885.24    1.826   254.43
1886.24    1.839   254.71
1887.24    1.852   254.98
1888.24    1.864   255.25
1889.24    1.876   255.52
1890.24    1.888   255.78
1891.24    1.899   256.04
1892.24    1.910   256.30
1893.24    1.920   256.55
1894.24    1.930   256.80
1895.24    1.940   257.05
1896.24    1.949   257.30
1897.24    1.958   257.54
1898.24    1.966   257.78
1899.24    1.975   258.02
1900.24    1.983   258.26
1901.24    1.990   258.50
1902.24    1.998   258.73
1903.24    2.005   258.96
1904.24    2.011   259.20
1905.24    2.018   259.43
1906.24    2.024   259.65
1907.24    2.030   259.88
1908.24    2.035   260.11
1909.24    2.040   260.33
1910.24    2.045   260.55
1911.24    2.050   260.77
1912.24    2.055   261.00
1913.24    2.059   261.22
1914.24    2.063   261.44
1915.24    2.066   261.65
1916.24    2.070   261.87
1917.24    2.073   262.09
1918.24    2.076   262.31
1919.24    2.079   262.52
1920.24    2.081   262.74
1921.24    2.083   262.95
1922.24    2.085   263.17
1923.24    2.087   263.38
1924.24    2.089   263.59
1925.24    2.090   263.81
1926.24    2.091   264.02
1927.24    2.092   264.23
1928.24    2.092   264.45
1929.24    2.093   264.66
1930.24    2.093   264.87
1931.24    2.093   265.08
1932.24    2.093   265.30
1933.24    2.093   265.51
1934.24    2.092   265.72
1935.24    2.091   265.93
1936.24    2.090   266.15
1937.24    2.089   266.36
1938.24    2.088   266.57
1939.24    2.086   266.79
1940.24    2.084   267.00
1941.24    2.082   267.22
1942.24    2.080   267.43
1943.24    2.078   267.65
1944.24    2.076   267.86
1945.24    2.073   268.08
1946.24    2.070   268.30
1947.24    2.067   268.51
1948.24    2.064   268.73
1949.24    2.060   268.95
1950.24    2.057   269.17
1951.24    2.053   269.39
1952.24    2.049   269.61
1953.24    2.045   269.84
1954.24    2.041   270.06
1955.24    2.037   270.28
1956.24    2.032   270.51
1957.24    2.028   270.73
1958.24    2.023   270.96
1959.24    2.018   271.19
1960.24    2.013   271.42
1961.24    2.007   271.65
1962.24    2.002   271.88
1963.24    1.996   272.11
1964.24    1.990   272.35
1965.24    1.984   272.58
1966.24    1.978   272.82
1967.24    1.972   273.06
1968.24    1.966   273.30
1969.24    1.959   273.54
1970.24    1.952   273.79
1971.24    1.946   274.03
1972.24    1.939   274.28
1973.24    1.932   274.53
1974.24    1.924   274.78
1975.24    1.917   275.03
1976.24    1.909   275.28
1977.24    1.902   275.54
1978.24    1.894   275.80
1979.24    1.886   276.06
1980.24    1.878   276.32
1981.24    1.870   276.59
1982.24    1.861   276.86
1983.24    1.853   277.13
1984.24    1.844   277.40
1985.24    1.836   277.67
1986.24    1.827   277.95
1987.24    1.818   278.23
1988.24    1.809   278.51
1989.24    1.800   278.80
1990.24    1.790   279.09
1991.24    1.781   279.38
1992.24    1.771   279.68
1993.24    1.761   279.98
1994.24    1.752   280.28
1995.24    1.742   280.58
1996.24    1.732   280.89
1997.24    1.721   281.20
1998.24    1.711   281.52
1999.24    1.701   281.84
2000.24    1.690   282.16
2001.24    1.679   282.49
2002.24    1.669   282.82
2003.24    1.658   283.16
2004.24    1.647   283.50
2005.24    1.636   283.85
2006.24    1.624   284.20
2007.24    1.613   284.55
2008.24    1.602   284.91
2009.24    1.590   285.28
2010.24    1.579   285.65
2011.24    1.567   286.03
2012.24    1.555   286.41
2013.24    1.543   286.80
2014.24    1.531   287.19
2015.24    1.519   287.59
2016.24    1.507   288.00
2017.24    1.494   288.41
2018.24    1.482   288.83
2019.24    1.470   289.26
2020.24    1.457   289.70
2021.24    1.444   290.14
2022.24    1.432   290.59
2023.24    1.419   291.05
2024.24    1.406   291.52
2025.24    1.393   291.99
2026.24    1.380   292.48
2027.24    1.367   292.97
2028.24    1.353   293.47
2029.24    1.340   293.99
2030.24    1.327   294.51
2031.24    1.313   295.04
2032.24    1.300   295.59
2033.24    1.286   296.15
2034.24    1.273   296.72
2035.24    1.259   297.30
2036.24    1.246   297.89
2037.24    1.232   298.50
2038.24    1.218   299.12
2039.24    1.204   299.75
2040.24    1.190   300.40
2041.24    1.176   301.07
2042.24    1.163   301.75
2043.24    1.149   302.45
2044.24    1.135   303.16
2045.24    1.121   303.89
2046.24    1.107   304.64
2047.24    1.093   305.41
2048.24    1.079   306.20
2049.24    1.065   307.02
2050.24    1.051   307.85
2051.24    1.037   308.70
2052.24    1.023   309.58
2053.24    1.009   310.48
2054.24    0.995   311.41
2055.24    0.982   312.36
2056.24    0.968   313.34
2057.24    0.954   314.35
2058.24    0.941   315.39
2059.24    0.927   316.46
2060.24    0.914   317.56
2061.24    0.901   318.69
2062.24    0.888   319.85
2063.24    0.875   321.05
2064.24    0.862   322.29
2065.24    0.849   323.56
2066.24    0.836   324.87
2067.24    0.824   326.23
2068.24    0.812   327.62
2069.24    0.800   329.05
2070.24    0.789   330.53
2071.24    0.777   332.05
2072.24    0.766   333.61
2073.24    0.755   335.22
2074.24    0.745   336.88
2075.24    0.734   338.58
2076.24    0.724   340.33
2077.24    0.715   342.13
2078.24    0.706   343.98
2079.24    0.697   345.87
2080.24    0.688   347.82
2081.24    0.680   349.81
2082.24    0.673   351.84
2083.24    0.665   353.92
2084.24    0.659   356.05
2085.24    0.652   358.22
2086.24    0.646     0.43
2087.24    0.641     2.68
2088.24    0.636     4.96
2089.24    0.631     7.29
2090.24    0.626     9.65
2091.24    0.622    12.04
2092.24    0.618    14.46
2093.24    0.615    16.91
2094.24    0.611    19.39
2095.24    0.608    21.89
2096.24    0.604    24.43
2097.24    0.601    26.99
2098.24    0.597    29.59
2099.24    0.593    32.22
2100.24    0.588    34.90
2101.24    0.582    37.62
2102.24    0.574    40.41
2103.24    0.565    43.28
2104.24    0.554    46.25
2105.24    0.540    49.35
2106.24    0.523    52.64
2107.24    0.502    56.18
2108.24    0.475    60.08
2109.24    0.442    64.51
2110.24    0.402    69.74
2111.24    0.354    76.28
2112.24    0.301    85.01
2113.24    0.246    97.63
2114.24    0.200   116.77
2115.24    0.180   143.42
2116.24    0.197   170.58
2117.24    0.243   190.36
2118.24    0.303   203.08
2119.24    0.368   211.45
2120.24    0.433   217.30
2121.24    0.497   221.62
2122.24    0.559   224.97
2123.24    0.619   227.66
2124.24    0.676   229.89
2125.24    0.730   231.78
2126.24    0.782   233.41
2127.24    0.832   234.83
2128.24    0.880   236.11
2129.24    0.926   237.25
2130.24    0.970   238.28
2131.24    1.012   239.23
2132.24    1.052   240.11
2133.24    1.091   240.92
2134.24    1.129   241.67
2135.24    1.165   242.38
2136.24    1.200   243.05
2137.24    1.233   243.68
2138.24    1.265   244.28
2139.24    1.296   244.84
2140.24    1.327   245.38
2141.24    1.356   245.90
2142.24    1.384   246.40
2143.24    1.411   246.88
2144.24    1.437   247.33
2145.24    1.463   247.78
2146.24    1.487   248.21
2147.24    1.511   248.62
2148.24    1.534   249.02
2149.24    1.557   249.41
2150.24    1.578   249.79
2151.24    1.599   250.16
2152.24    1.619   250.52
2153.24    1.639   250.87
2154.24    1.658   251.21
2155.24    1.677   251.55
2156.24    1.695   251.88
2157.24    1.712   252.20
2158.24    1.729   252.51
2159.24    1.745   252.82
2160.24    1.761   253.12
2161.24    1.776   253.42
2162.24    1.791   253.71
2163.24    1.805   254.00
2164.24    1.819   254.29






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 17:46:36



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