Double Star Calculator - Orbit

Orbital Elements for A2576AB
WDS: A2576AB WDS ID/Discoverer
P: 373.700 Orbital period (years)
a: 0.645 Semi-major axis (arcseconds)
i: 55.6 Inclination (degrees)
Ω: 11.5 Longitude of ascending node (degrees)
T: 1871.400 Epoch of periastron passage (year)
e: 0.487 Eccentricity
ω: 95.6 Longitude of periastron (degrees)
Start-Year: 1838.15 Year
End-Year: 2211.85 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2576AB
Position: 113303.00+093738.8 Epoch-2000 right ascension and declination
WDS-ID: 11330+0938 WDS designation
Discoverer Code: A2576AB Discover designation and components
ADS number: 8211 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.15 Magnitude of the primary
V2: 10.23 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Sca2016a Reference

Double Star Orbit for A2576AB



WDS 6th Orbit including measures of A2576AB

-- 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 A2576AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.538   269.83
--------------------------
1838.15    0.456    18.75
1839.15    0.448    19.72
1840.15    0.440    20.72
1841.15    0.432    21.76
1842.15    0.423    22.84
1843.15    0.414    23.97
1844.15    0.405    25.14
1845.15    0.396    26.37
1846.15    0.387    27.67
1847.15    0.377    29.02
1848.15    0.367    30.45
1849.15    0.357    31.96
1850.15    0.347    33.56
1851.15    0.336    35.25
1852.15    0.326    37.06
1853.15    0.315    38.98
1854.15    0.305    41.03
1855.15    0.294    43.24
1856.15    0.284    45.61
1857.15    0.273    48.16
1858.15    0.263    50.91
1859.15    0.253    53.89
1860.15    0.243    57.11
1861.15    0.234    60.59
1862.15    0.225    64.37
1863.15    0.216    68.43
1864.15    0.209    72.81
1865.15    0.202    77.49
1866.15    0.197    82.46
1867.15    0.192    87.69
1868.15    0.189    93.13
1869.15    0.188    98.70
1870.15    0.187   104.34
1871.15    0.188   109.96
1872.15    0.191   115.46
1873.15    0.195   120.80
1874.15    0.200   125.89
1875.15    0.206   130.71
1876.15    0.213   135.24
1877.15    0.221   139.45
1878.15    0.229   143.37
1879.15    0.238   147.00
1880.15    0.248   150.35
1881.15    0.257   153.46
1882.15    0.267   156.33
1883.15    0.278   158.99
1884.15    0.288   161.47
1885.15    0.298   163.77
1886.15    0.308   165.92
1887.15    0.319   167.93
1888.15    0.329   169.82
1889.15    0.339   171.60
1890.15    0.348   173.28
1891.15    0.358   174.86
1892.15    0.367   176.37
1893.15    0.376   177.80
1894.15    0.385   179.16
1895.15    0.394   180.47
1896.15    0.402   181.72
1897.15    0.411   182.91
1898.15    0.418   184.06
1899.15    0.426   185.17
1900.15    0.434   186.24
1901.15    0.441   187.28
1902.15    0.448   188.28
1903.15    0.454   189.25
1904.15    0.461   190.20
1905.15    0.467   191.12
1906.15    0.473   192.01
1907.15    0.479   192.88
1908.15    0.484   193.73
1909.15    0.490   194.57
1910.15    0.495   195.38
1911.15    0.500   196.18
1912.15    0.505   196.97
1913.15    0.509   197.74
1914.15    0.513   198.49
1915.15    0.518   199.24
1916.15    0.521   199.97
1917.15    0.525   200.69
1918.15    0.529   201.41
1919.15    0.532   202.11
1920.15    0.536   202.80
1921.15    0.539   203.49
1922.15    0.542   204.16
1923.15    0.545   204.83
1924.15    0.547   205.50
1925.15    0.550   206.16
1926.15    0.552   206.81
1927.15    0.554   207.45
1928.15    0.557   208.09
1929.15    0.559   208.73
1930.15    0.560   209.36
1931.15    0.562   209.99
1932.15    0.564   210.61
1933.15    0.566   211.23
1934.15    0.567   211.85
1935.15    0.568   212.46
1936.15    0.570   213.07
1937.15    0.571   213.68
1938.15    0.572   214.29
1939.15    0.573   214.89
1940.15    0.574   215.49
1941.15    0.575   216.09
1942.15    0.575   216.69
1943.15    0.576   217.29
1944.15    0.576   217.88
1945.15    0.577   218.48
1946.15    0.577   219.07
1947.15    0.578   219.67
1948.15    0.578   220.26
1949.15    0.578   220.85
1950.15    0.579   221.44
1951.15    0.579   222.03
1952.15    0.579   222.62
1953.15    0.579   223.21
1954.15    0.579   223.80
1955.15    0.579   224.39
1956.15    0.578   224.98
1957.15    0.578   225.57
1958.15    0.578   226.17
1959.15    0.578   226.76
1960.15    0.577   227.35
1961.15    0.577   227.94
1962.15    0.577   228.54
1963.15    0.576   229.13
1964.15    0.576   229.73
1965.15    0.575   230.33
1966.15    0.575   230.92
1967.15    0.574   231.52
1968.15    0.574   232.12
1969.15    0.573   232.72
1970.15    0.573   233.33
1971.15    0.572   233.93
1972.15    0.571   234.53
1973.15    0.571   235.14
1974.15    0.570   235.75
1975.15    0.569   236.36
1976.15    0.569   236.97
1977.15    0.568   237.58
1978.15    0.567   238.20
1979.15    0.566   238.81
1980.15    0.566   239.43
1981.15    0.565   240.05
1982.15    0.564   240.67
1983.15    0.563   241.29
1984.15    0.562   241.92
1985.15    0.562   242.54
1986.15    0.561   243.17
1987.15    0.560   243.80
1988.15    0.559   244.43
1989.15    0.559   245.06
1990.15    0.558   245.70
1991.15    0.557   246.33
1992.15    0.556   246.97
1993.15    0.555   247.61
1994.15    0.555   248.26
1995.15    0.554   248.90
1996.15    0.553   249.54
1997.15    0.552   250.19
1998.15    0.552   250.84
1999.15    0.551   251.49
2000.15    0.550   252.14
2001.15    0.549   252.80
2002.15    0.549   253.45
2003.15    0.548   254.11
2004.15    0.547   254.77
2005.15    0.547   255.43
2006.15    0.546   256.09
2007.15    0.546   256.76
2008.15    0.545   257.42
2009.15    0.544   258.09
2010.15    0.544   258.76
2011.15    0.543   259.43
2012.15    0.543   260.10
2013.15    0.542   260.77
2014.15    0.542   261.44
2015.15    0.541   262.12
2016.15    0.541   262.79
2017.15    0.541   263.47
2018.15    0.540   264.15
2019.15    0.540   264.82
2020.15    0.539   265.50
2021.15    0.539   266.18
2022.15    0.539   266.86
2023.15    0.539   267.54
2024.15    0.538   268.23
2025.15    0.538   268.91
2026.15    0.538   269.59
2027.15    0.538   270.28
2028.15    0.538   270.96
2029.15    0.538   271.64
2030.15    0.538   272.33
2031.15    0.538   273.01
2032.15    0.538   273.70
2033.15    0.538   274.38
2034.15    0.538   275.07
2035.15    0.538   275.75
2036.15    0.538   276.43
2037.15    0.538   277.12
2038.15    0.538   277.80
2039.15    0.538   278.48
2040.15    0.538   279.17
2041.15    0.539   279.85
2042.15    0.539   280.53
2043.15    0.539   281.21
2044.15    0.540   281.89
2045.15    0.540   282.57
2046.15    0.540   283.25
2047.15    0.541   283.92
2048.15    0.541   284.60
2049.15    0.542   285.27
2050.15    0.542   285.95
2051.15    0.543   286.62
2052.15    0.543   287.29
2053.15    0.544   287.96
2054.15    0.545   288.62
2055.15    0.545   289.29
2056.15    0.546   289.96
2057.15    0.547   290.62
2058.15    0.547   291.28
2059.15    0.548   291.94
2060.15    0.549   292.60
2061.15    0.550   293.25
2062.15    0.550   293.91
2063.15    0.551   294.56
2064.15    0.552   295.21
2065.15    0.553   295.86
2066.15    0.554   296.50
2067.15    0.555   297.14
2068.15    0.556   297.79
2069.15    0.557   298.42
2070.15    0.558   299.06
2071.15    0.559   299.70
2072.15    0.560   300.33
2073.15    0.561   300.96
2074.15    0.562   301.58
2075.15    0.563   302.21
2076.15    0.564   302.83
2077.15    0.565   303.45
2078.15    0.567   304.07
2079.15    0.568   304.68
2080.15    0.569   305.30
2081.15    0.570   305.91
2082.15    0.571   306.51
2083.15    0.572   307.12
2084.15    0.574   307.72
2085.15    0.575   308.32
2086.15    0.576   308.92
2087.15    0.577   309.51
2088.15    0.579   310.10
2089.15    0.580   310.69
2090.15    0.581   311.28
2091.15    0.583   311.86
2092.15    0.584   312.44
2093.15    0.585   313.02
2094.15    0.587   313.60
2095.15    0.588   314.17
2096.15    0.589   314.74
2097.15    0.591   315.31
2098.15    0.592   315.88
2099.15    0.593   316.44
2100.15    0.595   317.00
2101.15    0.596   317.56
2102.15    0.597   318.11
2103.15    0.599   318.67
2104.15    0.600   319.22
2105.15    0.601   319.77
2106.15    0.602   320.31
2107.15    0.604   320.86
2108.15    0.605   321.40
2109.15    0.606   321.94
2110.15    0.608   322.47
2111.15    0.609   323.01
2112.15    0.610   323.54
2113.15    0.611   324.07
2114.15    0.613   324.60
2115.15    0.614   325.12
2116.15    0.615   325.65
2117.15    0.616   326.17
2118.15    0.618   326.69
2119.15    0.619   327.21
2120.15    0.620   327.72
2121.15    0.621   328.24
2122.15    0.622   328.75
2123.15    0.623   329.26
2124.15    0.624   329.77
2125.15    0.625   330.27
2126.15    0.626   330.78
2127.15    0.627   331.28
2128.15    0.628   331.78
2129.15    0.629   332.28
2130.15    0.630   332.78
2131.15    0.631   333.28
2132.15    0.632   333.77
2133.15    0.633   334.27
2134.15    0.634   334.76
2135.15    0.634   335.25
2136.15    0.635   335.75
2137.15    0.636   336.24
2138.15    0.636   336.72
2139.15    0.637   337.21
2140.15    0.638   337.70
2141.15    0.638   338.18
2142.15    0.639   338.67
2143.15    0.639   339.15
2144.15    0.639   339.64
2145.15    0.640   340.12
2146.15    0.640   340.60
2147.15    0.640   341.09
2148.15    0.641   341.57
2149.15    0.641   342.05
2150.15    0.641   342.53
2151.15    0.641   343.01
2152.15    0.641   343.50
2153.15    0.641   343.98
2154.15    0.641   344.46
2155.15    0.640   344.94
2156.15    0.640   345.42
2157.15    0.640   345.91
2158.15    0.639   346.39
2159.15    0.639   346.87
2160.15    0.639   347.36
2161.15    0.638   347.84
2162.15    0.637   348.33
2163.15    0.636   348.82
2164.15    0.636   349.31
2165.15    0.635   349.80
2166.15    0.634   350.29
2167.15    0.633   350.78
2168.15    0.632   351.28
2169.15    0.630   351.77
2170.15    0.629   352.27
2171.15    0.628   352.77
2172.15    0.626   353.28
2173.15    0.624   353.78
2174.15    0.623   354.29
2175.15    0.621   354.80
2176.15    0.619   355.32
2177.15    0.617   355.83
2178.15    0.615   356.36
2179.15    0.613   356.88
2180.15    0.610   357.41
2181.15    0.608   357.94
2182.15    0.605   358.48
2183.15    0.602   359.02
2184.15    0.599   359.57
2185.15    0.596     0.12
2186.15    0.593     0.68
2187.15    0.590     1.25
2188.15    0.587     1.82
2189.15    0.583     2.40
2190.15    0.579     2.98
2191.15    0.576     3.57
2192.15    0.572     4.18
2193.15    0.568     4.79
2194.15    0.563     5.40
2195.15    0.559     6.03
2196.15    0.554     6.67
2197.15    0.549     7.32
2198.15    0.544     7.98
2199.15    0.539     8.66
2200.15    0.534     9.34
2201.15    0.528    10.04
2202.15    0.523    10.76
2203.15    0.517    11.49
2204.15    0.511    12.24
2205.15    0.504    13.01
2206.15    0.498    13.80
2207.15    0.491    14.61
2208.15    0.484    15.44
2209.15    0.477    16.30
2210.15    0.469    17.18
2211.15    0.462    18.09






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 16:39:27



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