Double Star Calculator - Orbit

Orbital Elements for A2636
WDS: A2636 WDS ID/Discoverer
P: 390.000 Orbital period (years)
a: 0.35 Semi-major axis (arcseconds)
i: 42.0 Inclination (degrees)
Ω: 300.0 Longitude of ascending node (degrees)
T: 1947.500 Epoch of periastron passage (year)
e: 0.841 Eccentricity
ω: 82.0 Longitude of periastron (degrees)
Start-Year: 1830.0 Year
End-Year: 2220.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2636
Position: 050856.16+031307.6 Epoch-2000 right ascension and declination
WDS-ID: 05089+0313 WDS designation
Discoverer Code: A2636 Discover designation and components
ADS number: 3728 Aitken Double Star catalog
HD number: 33236 HD catalog number
Hipparcos number: 23957 Hipparcos catalog number
V1: 8.21 Magnitude of the primary
V2: 6.83 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 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: Hrt2010a Reference

Double Star Orbit for A2636



WDS 6th Orbit including measures of A2636

-- 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 A2636
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.389   173.57
--------------------------
1830.00    0.428   215.81
1831.00    0.426   216.06
1832.00    0.425   216.31
1833.00    0.424   216.56
1834.00    0.422   216.82
1835.00    0.421   217.07
1836.00    0.420   217.33
1837.00    0.418   217.59
1838.00    0.417   217.85
1839.00    0.415   218.11
1840.00    0.414   218.38
1841.00    0.412   218.64
1842.00    0.411   218.91
1843.00    0.409   219.18
1844.00    0.408   219.45
1845.00    0.406   219.73
1846.00    0.405   220.00
1847.00    0.403   220.28
1848.00    0.401   220.56
1849.00    0.400   220.85
1850.00    0.398   221.13
1851.00    0.396   221.42
1852.00    0.395   221.71
1853.00    0.393   222.01
1854.00    0.391   222.30
1855.00    0.389   222.60
1856.00    0.388   222.90
1857.00    0.386   223.21
1858.00    0.384   223.51
1859.00    0.382   223.82
1860.00    0.380   224.13
1861.00    0.378   224.45
1862.00    0.377   224.77
1863.00    0.375   225.09
1864.00    0.373   225.42
1865.00    0.371   225.75
1866.00    0.369   226.08
1867.00    0.367   226.42
1868.00    0.365   226.76
1869.00    0.363   227.10
1870.00    0.360   227.45
1871.00    0.358   227.80
1872.00    0.356   228.16
1873.00    0.354   228.52
1874.00    0.352   228.88
1875.00    0.350   229.25
1876.00    0.347   229.63
1877.00    0.345   230.01
1878.00    0.343   230.39
1879.00    0.340   230.78
1880.00    0.338   231.17
1881.00    0.336   231.57
1882.00    0.333   231.98
1883.00    0.331   232.39
1884.00    0.328   232.81
1885.00    0.326   233.24
1886.00    0.323   233.67
1887.00    0.321   234.11
1888.00    0.318   234.55
1889.00    0.316   235.00
1890.00    0.313   235.46
1891.00    0.310   235.93
1892.00    0.308   236.41
1893.00    0.305   236.89
1894.00    0.302   237.39
1895.00    0.299   237.89
1896.00    0.296   238.40
1897.00    0.294   238.92
1898.00    0.291   239.46
1899.00    0.288   240.00
1900.00    0.285   240.55
1901.00    0.282   241.12
1902.00    0.279   241.70
1903.00    0.275   242.29
1904.00    0.272   242.90
1905.00    0.269   243.52
1906.00    0.266   244.15
1907.00    0.263   244.81
1908.00    0.259   245.47
1909.00    0.256   246.16
1910.00    0.252   246.86
1911.00    0.249   247.59
1912.00    0.245   248.33
1913.00    0.242   249.10
1914.00    0.238   249.89
1915.00    0.234   250.71
1916.00    0.230   251.55
1917.00    0.226   252.42
1918.00    0.222   253.33
1919.00    0.218   254.26
1920.00    0.214   255.23
1921.00    0.210   256.24
1922.00    0.206   257.29
1923.00    0.202   258.39
1924.00    0.197   259.53
1925.00    0.192   260.73
1926.00    0.188   261.99
1927.00    0.183   263.31
1928.00    0.178   264.71
1929.00    0.173   266.18
1930.00    0.168   267.75
1931.00    0.162   269.41
1932.00    0.157   271.20
1933.00    0.151   273.11
1934.00    0.145   275.18
1935.00    0.139   277.42
1936.00    0.133   279.88
1937.00    0.126   282.59
1938.00    0.119   285.62
1939.00    0.112   289.02
1940.00    0.104   292.93
1941.00    0.096   297.48
1942.00    0.087   302.91
1943.00    0.078   309.59
1944.00    0.068   318.10
1945.00    0.059   329.44
1946.00    0.050   345.11
1947.00    0.043     6.59
1948.00    0.042    32.47
1949.00    0.046    56.72
1950.00    0.054    75.18
1951.00    0.064    88.29
1952.00    0.075    97.77
1953.00    0.085   104.93
1954.00    0.095   110.56
1955.00    0.104   115.14
1956.00    0.113   118.98
1957.00    0.122   122.26
1958.00    0.130   125.12
1959.00    0.138   127.65
1960.00    0.146   129.91
1961.00    0.153   131.95
1962.00    0.160   133.81
1963.00    0.166   135.53
1964.00    0.173   137.11
1965.00    0.179   138.58
1966.00    0.185   139.95
1967.00    0.191   141.24
1968.00    0.197   142.45
1969.00    0.202   143.59
1970.00    0.207   144.68
1971.00    0.213   145.71
1972.00    0.218   146.69
1973.00    0.223   147.63
1974.00    0.227   148.53
1975.00    0.232   149.39
1976.00    0.237   150.22
1977.00    0.241   151.01
1978.00    0.246   151.78
1979.00    0.250   152.52
1980.00    0.254   153.24
1981.00    0.258   153.93
1982.00    0.262   154.60
1983.00    0.266   155.25
1984.00    0.270   155.88
1985.00    0.274   156.49
1986.00    0.278   157.09
1987.00    0.282   157.67
1988.00    0.285   158.24
1989.00    0.289   158.79
1990.00    0.292   159.33
1991.00    0.296   159.86
1992.00    0.299   160.37
1993.00    0.302   160.87
1994.00    0.306   161.36
1995.00    0.309   161.85
1996.00    0.312   162.32
1997.00    0.315   162.78
1998.00    0.318   163.23
1999.00    0.321   163.68
2000.00    0.324   164.12
2001.00    0.327   164.54
2002.00    0.330   164.97
2003.00    0.333   165.38
2004.00    0.336   165.79
2005.00    0.338   166.19
2006.00    0.341   166.58
2007.00    0.344   166.97
2008.00    0.346   167.35
2009.00    0.349   167.73
2010.00    0.351   168.10
2011.00    0.354   168.46
2012.00    0.356   168.82
2013.00    0.359   169.18
2014.00    0.361   169.53
2015.00    0.364   169.88
2016.00    0.366   170.22
2017.00    0.368   170.56
2018.00    0.371   170.89
2019.00    0.373   171.22
2020.00    0.375   171.54
2021.00    0.377   171.86
2022.00    0.379   172.18
2023.00    0.381   172.50
2024.00    0.383   172.81
2025.00    0.386   173.11
2026.00    0.388   173.42
2027.00    0.390   173.72
2028.00    0.392   174.02
2029.00    0.393   174.31
2030.00    0.395   174.61
2031.00    0.397   174.90
2032.00    0.399   175.18
2033.00    0.401   175.47
2034.00    0.403   175.75
2035.00    0.405   176.03
2036.00    0.406   176.30
2037.00    0.408   176.58
2038.00    0.410   176.85
2039.00    0.411   177.12
2040.00    0.413   177.39
2041.00    0.415   177.65
2042.00    0.416   177.92
2043.00    0.418   178.18
2044.00    0.419   178.44
2045.00    0.421   178.69
2046.00    0.422   178.95
2047.00    0.424   179.20
2048.00    0.425   179.46
2049.00    0.427   179.71
2050.00    0.428   179.95
2051.00    0.430   180.20
2052.00    0.431   180.45
2053.00    0.432   180.69
2054.00    0.434   180.93
2055.00    0.435   181.17
2056.00    0.436   181.41
2057.00    0.438   181.65
2058.00    0.439   181.89
2059.00    0.440   182.12
2060.00    0.441   182.36
2061.00    0.443   182.59
2062.00    0.444   182.82
2063.00    0.445   183.05
2064.00    0.446   183.28
2065.00    0.447   183.51
2066.00    0.448   183.73
2067.00    0.449   183.96
2068.00    0.450   184.19
2069.00    0.451   184.41
2070.00    0.453   184.63
2071.00    0.454   184.85
2072.00    0.455   185.07
2073.00    0.455   185.29
2074.00    0.456   185.51
2075.00    0.457   185.73
2076.00    0.458   185.95
2077.00    0.459   186.16
2078.00    0.460   186.38
2079.00    0.461   186.59
2080.00    0.462   186.81
2081.00    0.463   187.02
2082.00    0.463   187.23
2083.00    0.464   187.44
2084.00    0.465   187.65
2085.00    0.466   187.86
2086.00    0.466   188.07
2087.00    0.467   188.28
2088.00    0.468   188.49
2089.00    0.469   188.70
2090.00    0.469   188.90
2091.00    0.470   189.11
2092.00    0.471   189.31
2093.00    0.471   189.52
2094.00    0.472   189.72
2095.00    0.472   189.93
2096.00    0.473   190.13
2097.00    0.473   190.33
2098.00    0.474   190.54
2099.00    0.475   190.74
2100.00    0.475   190.94
2101.00    0.476   191.14
2102.00    0.476   191.34
2103.00    0.476   191.54
2104.00    0.477   191.74
2105.00    0.477   191.94
2106.00    0.478   192.14
2107.00    0.478   192.34
2108.00    0.479   192.54
2109.00    0.479   192.74
2110.00    0.479   192.94
2111.00    0.480   193.13
2112.00    0.480   193.33
2113.00    0.480   193.53
2114.00    0.481   193.73
2115.00    0.481   193.92
2116.00    0.481   194.12
2117.00    0.481   194.32
2118.00    0.482   194.51
2119.00    0.482   194.71
2120.00    0.482   194.90
2121.00    0.482   195.10
2122.00    0.482   195.30
2123.00    0.482   195.49
2124.00    0.483   195.69
2125.00    0.483   195.88
2126.00    0.483   196.08
2127.00    0.483   196.27
2128.00    0.483   196.47
2129.00    0.483   196.66
2130.00    0.483   196.86
2131.00    0.483   197.05
2132.00    0.483   197.24
2133.00    0.483   197.44
2134.00    0.483   197.63
2135.00    0.483   197.83
2136.00    0.483   198.02
2137.00    0.483   198.22
2138.00    0.483   198.41
2139.00    0.483   198.61
2140.00    0.483   198.80
2141.00    0.483   199.00
2142.00    0.483   199.19
2143.00    0.483   199.39
2144.00    0.482   199.58
2145.00    0.482   199.78
2146.00    0.482   199.97
2147.00    0.482   200.17
2148.00    0.482   200.37
2149.00    0.481   200.56
2150.00    0.481   200.76
2151.00    0.481   200.96
2152.00    0.481   201.15
2153.00    0.480   201.35
2154.00    0.480   201.55
2155.00    0.480   201.74
2156.00    0.479   201.94
2157.00    0.479   202.14
2158.00    0.479   202.34
2159.00    0.478   202.54
2160.00    0.478   202.73
2161.00    0.478   202.93
2162.00    0.477   203.13
2163.00    0.477   203.33
2164.00    0.476   203.53
2165.00    0.476   203.73
2166.00    0.475   203.94
2167.00    0.475   204.14
2168.00    0.474   204.34
2169.00    0.474   204.54
2170.00    0.473   204.74
2171.00    0.473   204.95
2172.00    0.472   205.15
2173.00    0.472   205.35
2174.00    0.471   205.56
2175.00    0.471   205.76
2176.00    0.470   205.97
2177.00    0.469   206.18
2178.00    0.469   206.38
2179.00    0.468   206.59
2180.00    0.467   206.80
2181.00    0.467   207.01
2182.00    0.466   207.21
2183.00    0.465   207.42
2184.00    0.464   207.64
2185.00    0.464   207.85
2186.00    0.463   208.06
2187.00    0.462   208.27
2188.00    0.461   208.48
2189.00    0.461   208.70
2190.00    0.460   208.91
2191.00    0.459   209.13
2192.00    0.458   209.34
2193.00    0.457   209.56
2194.00    0.456   209.78
2195.00    0.455   210.00
2196.00    0.454   210.22
2197.00    0.454   210.44
2198.00    0.453   210.66
2199.00    0.452   210.88
2200.00    0.451   211.11
2201.00    0.450   211.33
2202.00    0.449   211.55
2203.00    0.448   211.78
2204.00    0.447   212.01
2205.00    0.446   212.24
2206.00    0.445   212.47
2207.00    0.443   212.70
2208.00    0.442   212.93
2209.00    0.441   213.16
2210.00    0.440   213.40
2211.00    0.439   213.63
2212.00    0.438   213.87
2213.00    0.437   214.11
2214.00    0.435   214.35
2215.00    0.434   214.59
2216.00    0.433   214.83
2217.00    0.432   215.07
2218.00    0.430   215.32
2219.00    0.429   215.56






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 15:34:34



www.stella-vega.de