Double Star Calculator - Orbit

Orbital Elements for STT353AB
WDS: STT353AB WDS ID/Discoverer
P: 307.800 Orbital period (years)
a: 0.965 Semi-major axis (arcseconds)
i: 95.6 Inclination (degrees)
Ω: 70.3 Longitude of ascending node (degrees)
T: 2116.600 Epoch of periastron passage (year)
e: 0.752 Eccentricity
ω: 275.0 Longitude of periastron (degrees)
Start-Year: 1871.1 Year
End-Year: 2178.9 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT353AB
Position: 182045.44+712015.8 Epoch-2000 right ascension and declination
WDS-ID: 18208+7120 WDS designation
Discoverer Code: STT353AB Discover designation and components
ADS number: 11311 Aitken Double Star catalog
HD number: 170000 HD catalog number
Hipparcos number: 89908 Hipparcos catalog number
V1: 4.46 Magnitude of the primary
V2: 5.90 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1998 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: Ana2005 Reference

Double Star Orbit for STT353AB



WDS 6th Orbit including measures of STT353AB

-- 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 STT353AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.583   263.57
--------------------------
1871.10    0.502    57.45
1872.10    0.497    57.17
1873.10    0.492    56.88
1874.10    0.487    56.59
1875.10    0.483    56.29
1876.10    0.478    55.99
1877.10    0.472    55.67
1878.10    0.467    55.36
1879.10    0.462    55.03
1880.10    0.457    54.70
1881.10    0.451    54.36
1882.10    0.446    54.01
1883.10    0.441    53.66
1884.10    0.435    53.29
1885.10    0.430    52.92
1886.10    0.424    52.53
1887.10    0.418    52.14
1888.10    0.413    51.73
1889.10    0.407    51.32
1890.10    0.401    50.89
1891.10    0.396    50.45
1892.10    0.390    49.99
1893.10    0.384    49.52
1894.10    0.378    49.04
1895.10    0.373    48.55
1896.10    0.367    48.03
1897.10    0.361    47.50
1898.10    0.355    46.96
1899.10    0.349    46.39
1900.10    0.343    45.81
1901.10    0.337    45.20
1902.10    0.331    44.57
1903.10    0.326    43.92
1904.10    0.320    43.25
1905.10    0.314    42.55
1906.10    0.308    41.83
1907.10    0.302    41.07
1908.10    0.296    40.29
1909.10    0.291    39.48
1910.10    0.285    38.63
1911.10    0.279    37.75
1912.10    0.273    36.83
1913.10    0.268    35.87
1914.10    0.262    34.88
1915.10    0.257    33.83
1916.10    0.251    32.75
1917.10    0.246    31.61
1918.10    0.241    30.43
1919.10    0.235    29.19
1920.10    0.230    27.90
1921.10    0.225    26.55
1922.10    0.220    25.13
1923.10    0.215    23.66
1924.10    0.211    22.12
1925.10    0.206    20.51
1926.10    0.202    18.82
1927.10    0.198    17.07
1928.10    0.194    15.24
1929.10    0.190    13.34
1930.10    0.186    11.35
1931.10    0.183     9.30
1932.10    0.180     7.16
1933.10    0.177     4.95
1934.10    0.174     2.68
1935.10    0.172     0.33
1936.10    0.169   357.92
1937.10    0.168   355.45
1938.10    0.166   352.93
1939.10    0.165   350.37
1940.10    0.164   347.77
1941.10    0.163   345.16
1942.10    0.163   342.52
1943.10    0.163   339.89
1944.10    0.164   337.26
1945.10    0.164   334.65
1946.10    0.165   332.07
1947.10    0.167   329.53
1948.10    0.168   327.04
1949.10    0.170   324.59
1950.10    0.173   322.21
1951.10    0.175   319.90
1952.10    0.178   317.65
1953.10    0.181   315.48
1954.10    0.184   313.38
1955.10    0.188   311.36
1956.10    0.192   309.41
1957.10    0.196   307.54
1958.10    0.200   305.75
1959.10    0.204   304.03
1960.10    0.208   302.38
1961.10    0.213   300.81
1962.10    0.218   299.30
1963.10    0.223   297.85
1964.10    0.228   296.47
1965.10    0.233   295.15
1966.10    0.238   293.88
1967.10    0.243   292.67
1968.10    0.249   291.52
1969.10    0.254   290.41
1970.10    0.260   289.34
1971.10    0.265   288.33
1972.10    0.271   287.35
1973.10    0.277   286.42
1974.10    0.282   285.52
1975.10    0.288   284.66
1976.10    0.294   283.83
1977.10    0.300   283.03
1978.10    0.306   282.27
1979.10    0.312   281.54
1980.10    0.318   280.83
1981.10    0.324   280.15
1982.10    0.330   279.49
1983.10    0.336   278.86
1984.10    0.342   278.24
1985.10    0.348   277.65
1986.10    0.354   277.08
1987.10    0.360   276.53
1988.10    0.366   276.00
1989.10    0.372   275.49
1990.10    0.378   274.99
1991.10    0.384   274.51
1992.10    0.390   274.04
1993.10    0.396   273.58
1994.10    0.402   273.14
1995.10    0.408   272.72
1996.10    0.414   272.30
1997.10    0.420   271.90
1998.10    0.426   271.51
1999.10    0.432   271.13
2000.10    0.438   270.76
2001.10    0.444   270.40
2002.10    0.450   270.04
2003.10    0.456   269.70
2004.10    0.461   269.37
2005.10    0.467   269.04
2006.10    0.473   268.73
2007.10    0.479   268.42
2008.10    0.484   268.12
2009.10    0.490   267.82
2010.10    0.496   267.53
2011.10    0.501   267.25
2012.10    0.507   266.97
2013.10    0.513   266.71
2014.10    0.518   266.44
2015.10    0.524   266.18
2016.10    0.529   265.93
2017.10    0.534   265.68
2018.10    0.540   265.44
2019.10    0.545   265.20
2020.10    0.550   264.97
2021.10    0.555   264.74
2022.10    0.561   264.51
2023.10    0.566   264.29
2024.10    0.571   264.08
2025.10    0.576   263.86
2026.10    0.581   263.65
2027.10    0.585   263.45
2028.10    0.590   263.24
2029.10    0.595   263.04
2030.10    0.600   262.85
2031.10    0.604   262.65
2032.10    0.609   262.46
2033.10    0.613   262.28
2034.10    0.618   262.09
2035.10    0.622   261.91
2036.10    0.626   261.73
2037.10    0.631   261.55
2038.10    0.635   261.38
2039.10    0.639   261.20
2040.10    0.643   261.03
2041.10    0.646   260.87
2042.10    0.650   260.70
2043.10    0.654   260.53
2044.10    0.658   260.37
2045.10    0.661   260.21
2046.10    0.664   260.05
2047.10    0.668   259.89
2048.10    0.671   259.74
2049.10    0.674   259.58
2050.10    0.677   259.43
2051.10    0.680   259.28
2052.10    0.682   259.12
2053.10    0.685   258.97
2054.10    0.688   258.83
2055.10    0.690   258.68
2056.10    0.692   258.53
2057.10    0.694   258.39
2058.10    0.696   258.24
2059.10    0.698   258.10
2060.10    0.700   257.95
2061.10    0.701   257.81
2062.10    0.702   257.67
2063.10    0.704   257.53
2064.10    0.705   257.38
2065.10    0.705   257.24
2066.10    0.706   257.10
2067.10    0.707   256.96
2068.10    0.707   256.82
2069.10    0.707   256.68
2070.10    0.707   256.54
2071.10    0.706   256.40
2072.10    0.706   256.26
2073.10    0.705   256.12
2074.10    0.704   255.98
2075.10    0.702   255.84
2076.10    0.701   255.69
2077.10    0.699   255.55
2078.10    0.697   255.41
2079.10    0.694   255.26
2080.10    0.691   255.12
2081.10    0.688   254.97
2082.10    0.684   254.82
2083.10    0.681   254.67
2084.10    0.676   254.52
2085.10    0.671   254.36
2086.10    0.666   254.21
2087.10    0.661   254.05
2088.10    0.655   253.89
2089.10    0.648   253.72
2090.10    0.641   253.55
2091.10    0.633   253.38
2092.10    0.625   253.20
2093.10    0.616   253.02
2094.10    0.606   252.83
2095.10    0.595   252.64
2096.10    0.584   252.44
2097.10    0.572   252.23
2098.10    0.558   252.01
2099.10    0.544   251.78
2100.10    0.529   251.53
2101.10    0.512   251.27
2102.10    0.494   251.00
2103.10    0.475   250.70
2104.10    0.453   250.37
2105.10    0.431   250.02
2106.10    0.406   249.61
2107.10    0.379   249.16
2108.10    0.349   248.63
2109.10    0.317   248.00
2110.10    0.282   247.21
2111.10    0.243   246.19
2112.10    0.202   244.77
2113.10    0.157   242.57
2114.10    0.110   238.53
2115.10    0.062   228.21
2116.10    0.024   172.97
2117.10    0.052    96.42
2118.10    0.100    82.94
2119.10    0.147    78.20
2120.10    0.192    75.74
2121.10    0.233    74.18
2122.10    0.270    73.07
2123.10    0.304    72.22
2124.10    0.334    71.53
2125.10    0.362    70.95
2126.10    0.386    70.45
2127.10    0.408    70.01
2128.10    0.428    69.60
2129.10    0.446    69.24
2130.10    0.462    68.90
2131.10    0.476    68.58
2132.10    0.489    68.28
2133.10    0.501    67.99
2134.10    0.511    67.72
2135.10    0.521    67.46
2136.10    0.529    67.20
2137.10    0.537    66.95
2138.10    0.544    66.71
2139.10    0.550    66.48
2140.10    0.555    66.25
2141.10    0.560    66.02
2142.10    0.564    65.80
2143.10    0.567    65.58
2144.10    0.570    65.37
2145.10    0.573    65.15
2146.10    0.575    64.94
2147.10    0.577    64.73
2148.10    0.578    64.52
2149.10    0.579    64.31
2150.10    0.579    64.10
2151.10    0.580    63.89
2152.10    0.579    63.68
2153.10    0.579    63.47
2154.10    0.578    63.26
2155.10    0.577    63.06
2156.10    0.576    62.84
2157.10    0.575    62.63
2158.10    0.573    62.42
2159.10    0.571    62.21
2160.10    0.569    61.99
2161.10    0.567    61.77
2162.10    0.565    61.56
2163.10    0.562    61.33
2164.10    0.559    61.11
2165.10    0.556    60.89
2166.10    0.553    60.66
2167.10    0.550    60.43
2168.10    0.546    60.19
2169.10    0.543    59.96
2170.10    0.539    59.72
2171.10    0.535    59.48
2172.10    0.531    59.23
2173.10    0.527    58.98
2174.10    0.523    58.73
2175.10    0.519    58.47
2176.10    0.515    58.21
2177.10    0.510    57.94
2178.10    0.506    57.67






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 17:50:49



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