Double Star Calculator - Orbit

Orbital Elements for A578AA,AB
WDS: A578AA,AB WDS ID/Discoverer
P: 361.254 Orbital period (years)
a: 0.4534 Semi-major axis (arcseconds)
i: 118.7 Inclination (degrees)
Ω: 0.7 Longitude of ascending node (degrees)
T: 2260.179 Epoch of periastron passage (year)
e: 0.487 Eccentricity
ω: 312.2 Longitude of periastron (degrees)
Start-Year: 1844.373 Year
End-Year: 2205.627 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A578AA,AB
Position: 181749.51+435032.0 Epoch-2000 right ascension and declination
WDS-ID: 18178+4351 WDS designation
Discoverer Code: A578AA,AB Discover designation and components
ADS number: 11247 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 89655 Hipparcos catalog number
V1: 9.55 Magnitude of the primary
V2: 10.64 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Cve2022 Reference

Double Star Orbit for A578AA,AB



WDS 6th Orbit including measures of A578AA,AB

-- 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 A578AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.359   232.97
--------------------------
1844.37    0.403   170.63
1845.37    0.397   170.09
1846.37    0.391   169.54
1847.37    0.385   168.96
1848.37    0.378   168.37
1849.37    0.372   167.76
1850.37    0.366   167.13
1851.37    0.359   166.48
1852.37    0.352   165.80
1853.37    0.345   165.09
1854.37    0.338   164.36
1855.37    0.331   163.59
1856.37    0.324   162.79
1857.37    0.317   161.95
1858.37    0.310   161.08
1859.37    0.302   160.16
1860.37    0.294   159.19
1861.37    0.287   158.18
1862.37    0.279   157.10
1863.37    0.271   155.97
1864.37    0.263   154.76
1865.37    0.255   153.48
1866.37    0.247   152.12
1867.37    0.239   150.66
1868.37    0.231   149.10
1869.37    0.223   147.43
1870.37    0.214   145.63
1871.37    0.206   143.68
1872.37    0.198   141.58
1873.37    0.190   139.30
1874.37    0.182   136.82
1875.37    0.174   134.11
1876.37    0.167   131.16
1877.37    0.160   127.94
1878.37    0.153   124.42
1879.37    0.146   120.58
1880.37    0.141   116.41
1881.37    0.135   111.89
1882.37    0.131   107.02
1883.37    0.127   101.83
1884.37    0.124    96.36
1885.37    0.122    90.67
1886.37    0.121    84.85
1887.37    0.121    79.00
1888.37    0.122    73.21
1889.37    0.125    67.57
1890.37    0.128    62.17
1891.37    0.132    57.06
1892.37    0.136    52.27
1893.37    0.142    47.81
1894.37    0.147    43.69
1895.37    0.153    39.88
1896.37    0.160    36.37
1897.37    0.166    33.14
1898.37    0.173    30.16
1899.37    0.180    27.40
1900.37    0.187    24.83
1901.37    0.193    22.45
1902.37    0.200    20.23
1903.37    0.206    18.14
1904.37    0.212    16.18
1905.37    0.218    14.33
1906.37    0.224    12.57
1907.37    0.230    10.90
1908.37    0.235     9.31
1909.37    0.240     7.79
1910.37    0.244     6.32
1911.37    0.249     4.91
1912.37    0.253     3.54
1913.37    0.257     2.22
1914.37    0.260     0.93
1915.37    0.263   359.67
1916.37    0.266   358.45
1917.37    0.269   357.25
1918.37    0.271   356.07
1919.37    0.273   354.91
1920.37    0.275   353.76
1921.37    0.277   352.63
1922.37    0.278   351.51
1923.37    0.279   350.40
1924.37    0.280   349.31
1925.37    0.281   348.21
1926.37    0.281   347.12
1927.37    0.282   346.04
1928.37    0.282   344.96
1929.37    0.282   343.88
1930.37    0.282   342.79
1931.37    0.282   341.71
1932.37    0.281   340.63
1933.37    0.281   339.54
1934.37    0.280   338.45
1935.37    0.280   337.35
1936.37    0.279   336.25
1937.37    0.278   335.14
1938.37    0.277   334.02
1939.37    0.276   332.90
1940.37    0.275   331.77
1941.37    0.274   330.63
1942.37    0.273   329.48
1943.37    0.272   328.32
1944.37    0.271   327.15
1945.37    0.269   325.98
1946.37    0.268   324.79
1947.37    0.267   323.59
1948.37    0.266   322.37
1949.37    0.264   321.15
1950.37    0.263   319.92
1951.37    0.262   318.67
1952.37    0.261   317.42
1953.37    0.260   316.15
1954.37    0.259   314.87
1955.37    0.258   313.58
1956.37    0.257   312.28
1957.37    0.256   310.97
1958.37    0.255   309.65
1959.37    0.254   308.32
1960.37    0.253   306.98
1961.37    0.252   305.63
1962.37    0.251   304.27
1963.37    0.251   302.91
1964.37    0.250   301.54
1965.37    0.250   300.16
1966.37    0.249   298.78
1967.37    0.249   297.40
1968.37    0.249   296.01
1969.37    0.248   294.62
1970.37    0.248   293.22
1971.37    0.248   291.83
1972.37    0.248   290.44
1973.37    0.249   289.05
1974.37    0.249   287.66
1975.37    0.249   286.27
1976.37    0.250   284.89
1977.37    0.250   283.51
1978.37    0.251   282.14
1979.37    0.251   280.78
1980.37    0.252   279.43
1981.37    0.253   278.08
1982.37    0.254   276.75
1983.37    0.255   275.42
1984.37    0.256   274.11
1985.37    0.258   272.81
1986.37    0.259   271.52
1987.37    0.260   270.25
1988.37    0.262   268.99
1989.37    0.263   267.74
1990.37    0.265   266.51
1991.37    0.267   265.29
1992.37    0.269   264.09
1993.37    0.270   262.91
1994.37    0.272   261.74
1995.37    0.274   260.59
1996.37    0.276   259.46
1997.37    0.279   258.35
1998.37    0.281   257.25
1999.37    0.283   256.17
2000.37    0.285   255.10
2001.37    0.288   254.06
2002.37    0.290   253.03
2003.37    0.293   252.01
2004.37    0.295   251.02
2005.37    0.298   250.04
2006.37    0.300   249.08
2007.37    0.303   248.14
2008.37    0.306   247.21
2009.37    0.308   246.30
2010.37    0.311   245.40
2011.37    0.314   244.52
2012.37    0.317   243.66
2013.37    0.320   242.81
2014.37    0.323   241.98
2015.37    0.325   241.16
2016.37    0.328   240.35
2017.37    0.331   239.56
2018.37    0.334   238.79
2019.37    0.337   238.03
2020.37    0.340   237.28
2021.37    0.343   236.54
2022.37    0.347   235.82
2023.37    0.350   235.11
2024.37    0.353   234.42
2025.37    0.356   233.73
2026.37    0.359   233.06
2027.37    0.362   232.40
2028.37    0.365   231.75
2029.37    0.368   231.11
2030.37    0.371   230.48
2031.37    0.375   229.86
2032.37    0.378   229.25
2033.37    0.381   228.66
2034.37    0.384   228.07
2035.37    0.387   227.49
2036.37    0.390   226.92
2037.37    0.393   226.36
2038.37    0.396   225.81
2039.37    0.400   225.27
2040.37    0.403   224.74
2041.37    0.406   224.21
2042.37    0.409   223.69
2043.37    0.412   223.18
2044.37    0.415   222.68
2045.37    0.418   222.19
2046.37    0.421   221.70
2047.37    0.424   221.22
2048.37    0.427   220.74
2049.37    0.430   220.28
2050.37    0.433   219.82
2051.37    0.436   219.36
2052.37    0.439   218.91
2053.37    0.442   218.47
2054.37    0.445   218.04
2055.37    0.448   217.60
2056.37    0.451   217.18
2057.37    0.454   216.76
2058.37    0.457   216.35
2059.37    0.460   215.94
2060.37    0.463   215.53
2061.37    0.465   215.13
2062.37    0.468   214.74
2063.37    0.471   214.35
2064.37    0.474   213.97
2065.37    0.477   213.59
2066.37    0.479   213.21
2067.37    0.482   212.84
2068.37    0.485   212.47
2069.37    0.487   212.11
2070.37    0.490   211.75
2071.37    0.492   211.39
2072.37    0.495   211.04
2073.37    0.497   210.69
2074.37    0.500   210.34
2075.37    0.502   210.00
2076.37    0.505   209.66
2077.37    0.507   209.33
2078.37    0.510   208.99
2079.37    0.512   208.66
2080.37    0.514   208.34
2081.37    0.517   208.02
2082.37    0.519   207.69
2083.37    0.521   207.38
2084.37    0.523   207.06
2085.37    0.526   206.75
2086.37    0.528   206.44
2087.37    0.530   206.13
2088.37    0.532   205.83
2089.37    0.534   205.52
2090.37    0.536   205.22
2091.37    0.538   204.93
2092.37    0.540   204.63
2093.37    0.542   204.34
2094.37    0.543   204.04
2095.37    0.545   203.75
2096.37    0.547   203.47
2097.37    0.549   203.18
2098.37    0.551   202.90
2099.37    0.552   202.61
2100.37    0.554   202.33
2101.37    0.555   202.05
2102.37    0.557   201.78
2103.37    0.558   201.50
2104.37    0.560   201.22
2105.37    0.561   200.95
2106.37    0.563   200.68
2107.37    0.564   200.41
2108.37    0.565   200.14
2109.37    0.567   199.87
2110.37    0.568   199.60
2111.37    0.569   199.34
2112.37    0.570   199.07
2113.37    0.571   198.81
2114.37    0.572   198.55
2115.37    0.573   198.28
2116.37    0.574   198.02
2117.37    0.575   197.76
2118.37    0.576   197.50
2119.37    0.577   197.24
2120.37    0.578   196.99
2121.37    0.578   196.73
2122.37    0.579   196.47
2123.37    0.580   196.22
2124.37    0.580   195.96
2125.37    0.581   195.71
2126.37    0.581   195.45
2127.37    0.581   195.20
2128.37    0.582   194.94
2129.37    0.582   194.69
2130.37    0.582   194.44
2131.37    0.583   194.18
2132.37    0.583   193.93
2133.37    0.583   193.68
2134.37    0.583   193.42
2135.37    0.583   193.17
2136.37    0.583   192.92
2137.37    0.583   192.67
2138.37    0.583   192.41
2139.37    0.582   192.16
2140.37    0.582   191.91
2141.37    0.582   191.65
2142.37    0.581   191.40
2143.37    0.581   191.14
2144.37    0.580   190.89
2145.37    0.580   190.63
2146.37    0.579   190.38
2147.37    0.578   190.12
2148.37    0.578   189.86
2149.37    0.577   189.60
2150.37    0.576   189.35
2151.37    0.575   189.09
2152.37    0.574   188.83
2153.37    0.573   188.56
2154.37    0.572   188.30
2155.37    0.570   188.04
2156.37    0.569   187.77
2157.37    0.568   187.51
2158.37    0.566   187.24
2159.37    0.565   186.97
2160.37    0.563   186.70
2161.37    0.561   186.43
2162.37    0.560   186.16
2163.37    0.558   185.88
2164.37    0.556   185.60
2165.37    0.554   185.33
2166.37    0.552   185.04
2167.37    0.550   184.76
2168.37    0.548   184.48
2169.37    0.546   184.19
2170.37    0.543   183.90
2171.37    0.541   183.61
2172.37    0.538   183.31
2173.37    0.536   183.01
2174.37    0.533   182.71
2175.37    0.530   182.41
2176.37    0.528   182.10
2177.37    0.525   181.79
2178.37    0.522   181.48
2179.37    0.519   181.16
2180.37    0.515   180.84
2181.37    0.512   180.51
2182.37    0.509   180.18
2183.37    0.505   179.85
2184.37    0.502   179.51
2185.37    0.498   179.17
2186.37    0.494   178.82
2187.37    0.491   178.46
2188.37    0.487   178.10
2189.37    0.483   177.74
2190.37    0.479   177.37
2191.37    0.474   176.99
2192.37    0.470   176.60
2193.37    0.466   176.21
2194.37    0.461   175.81
2195.37    0.456   175.40
2196.37    0.452   174.98
2197.37    0.447   174.56
2198.37    0.442   174.12
2199.37    0.437   173.68
2200.37    0.432   173.22
2201.37    0.426   172.76
2202.37    0.421   172.28
2203.37    0.415   171.79
2204.37    0.410   171.28
2205.37    0.404   170.76






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 17:50:09



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