Double Star Calculator - Orbit

Orbital Elements for A1580
WDS: A1580 WDS ID/Discoverer
P: 399.000 Orbital period (years)
a: 0.351 Semi-major axis (arcseconds)
i: 38.0 Inclination (degrees)
Ω: 117.0 Longitude of ascending node (degrees)
T: 1965.000 Epoch of periastron passage (year)
e: 0.29 Eccentricity
ω: 104.0 Longitude of periastron (degrees)
Start-Year: 1825.5 Year
End-Year: 2224.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1580
Position: 080144.53-083535.4 Epoch-2000 right ascension and declination
WDS-ID: 08017-0836 WDS designation
Discoverer Code: A1580 Discover designation and components
ADS number: 6526 Aitken Double Star catalog
HD number: 66094 HD catalog number
Hipparcos number: 39264 Hipparcos catalog number
V1: 7.81 Magnitude of the primary
V2: 8.70 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Hrt2010a Reference

Double Star Orbit for A1580



WDS 6th Orbit including measures of A1580

-- 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 A1580
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.316   306.49
--------------------------
1825.50    0.385    80.17
1826.50    0.386    80.73
1827.50    0.386    81.29
1828.50    0.386    81.86
1829.50    0.386    82.42
1830.50    0.386    82.98
1831.50    0.386    83.55
1832.50    0.386    84.11
1833.50    0.386    84.67
1834.50    0.386    85.24
1835.50    0.386    85.80
1836.50    0.385    86.37
1837.50    0.385    86.93
1838.50    0.385    87.49
1839.50    0.385    88.06
1840.50    0.385    88.63
1841.50    0.385    89.19
1842.50    0.384    89.76
1843.50    0.384    90.33
1844.50    0.384    90.89
1845.50    0.384    91.46
1846.50    0.383    92.03
1847.50    0.383    92.60
1848.50    0.383    93.18
1849.50    0.382    93.75
1850.50    0.382    94.32
1851.50    0.381    94.90
1852.50    0.381    95.48
1853.50    0.380    96.06
1854.50    0.380    96.64
1855.50    0.379    97.22
1856.50    0.379    97.80
1857.50    0.378    98.39
1858.50    0.378    98.97
1859.50    0.377    99.56
1860.50    0.376   100.15
1861.50    0.375   100.75
1862.50    0.375   101.34
1863.50    0.374   101.94
1864.50    0.373   102.54
1865.50    0.372   103.15
1866.50    0.371   103.75
1867.50    0.370   104.36
1868.50    0.369   104.98
1869.50    0.368   105.59
1870.50    0.367   106.21
1871.50    0.366   106.83
1872.50    0.365   107.46
1873.50    0.364   108.09
1874.50    0.363   108.72
1875.50    0.362   109.36
1876.50    0.361   110.00
1877.50    0.359   110.65
1878.50    0.358   111.30
1879.50    0.357   111.96
1880.50    0.355   112.62
1881.50    0.354   113.29
1882.50    0.353   113.96
1883.50    0.351   114.63
1884.50    0.350   115.32
1885.50    0.348   116.01
1886.50    0.346   116.70
1887.50    0.345   117.40
1888.50    0.343   118.11
1889.50    0.341   118.83
1890.50    0.340   119.55
1891.50    0.338   120.28
1892.50    0.336   121.02
1893.50    0.334   121.77
1894.50    0.332   122.52
1895.50    0.330   123.28
1896.50    0.328   124.06
1897.50    0.326   124.84
1898.50    0.324   125.63
1899.50    0.322   126.43
1900.50    0.320   127.24
1901.50    0.318   128.07
1902.50    0.316   128.90
1903.50    0.314   129.75
1904.50    0.311   130.61
1905.50    0.309   131.48
1906.50    0.307   132.36
1907.50    0.304   133.26
1908.50    0.302   134.17
1909.50    0.300   135.10
1910.50    0.297   136.04
1911.50    0.295   137.00
1912.50    0.292   137.97
1913.50    0.290   138.96
1914.50    0.287   139.97
1915.50    0.284   141.00
1916.50    0.282   142.05
1917.50    0.279   143.11
1918.50    0.277   144.20
1919.50    0.274   145.31
1920.50    0.271   146.43
1921.50    0.268   147.59
1922.50    0.266   148.76
1923.50    0.263   149.96
1924.50    0.260   151.18
1925.50    0.258   152.43
1926.50    0.255   153.71
1927.50    0.252   155.01
1928.50    0.250   156.34
1929.50    0.247   157.70
1930.50    0.244   159.09
1931.50    0.242   160.51
1932.50    0.239   161.97
1933.50    0.236   163.45
1934.50    0.234   164.97
1935.50    0.231   166.51
1936.50    0.229   168.10
1937.50    0.227   169.71
1938.50    0.224   171.36
1939.50    0.222   173.05
1940.50    0.220   174.77
1941.50    0.218   176.52
1942.50    0.215   178.31
1943.50    0.214   180.13
1944.50    0.212   181.99
1945.50    0.210   183.88
1946.50    0.208   185.80
1947.50    0.207   187.75
1948.50    0.205   189.73
1949.50    0.204   191.73
1950.50    0.202   193.77
1951.50    0.201   195.82
1952.50    0.200   197.90
1953.50    0.200   200.00
1954.50    0.199   202.11
1955.50    0.198   204.24
1956.50    0.198   206.38
1957.50    0.198   208.52
1958.50    0.197   210.67
1959.50    0.197   212.83
1960.50    0.198   214.98
1961.50    0.198   217.12
1962.50    0.198   219.26
1963.50    0.199   221.39
1964.50    0.199   223.51
1965.50    0.200   225.60
1966.50    0.201   227.68
1967.50    0.202   229.74
1968.50    0.204   231.78
1969.50    0.205   233.79
1970.50    0.206   235.78
1971.50    0.208   237.73
1972.50    0.209   239.66
1973.50    0.211   241.56
1974.50    0.213   243.42
1975.50    0.215   245.26
1976.50    0.217   247.06
1977.50    0.219   248.83
1978.50    0.221   250.56
1979.50    0.223   252.27
1980.50    0.225   253.94
1981.50    0.227   255.58
1982.50    0.230   257.18
1983.50    0.232   258.76
1984.50    0.234   260.31
1985.50    0.236   261.82
1986.50    0.239   263.30
1987.50    0.241   264.76
1988.50    0.243   266.19
1989.50    0.246   267.59
1990.50    0.248   268.96
1991.50    0.251   270.31
1992.50    0.253   271.63
1993.50    0.255   272.93
1994.50    0.258   274.20
1995.50    0.260   275.46
1996.50    0.262   276.69
1997.50    0.265   277.89
1998.50    0.267   279.08
1999.50    0.269   280.25
2000.50    0.271   281.40
2001.50    0.273   282.53
2002.50    0.275   283.64
2003.50    0.278   284.74
2004.50    0.280   285.82
2005.50    0.282   286.88
2006.50    0.284   287.93
2007.50    0.286   288.97
2008.50    0.288   289.99
2009.50    0.289   290.99
2010.50    0.291   291.99
2011.50    0.293   292.97
2012.50    0.295   293.94
2013.50    0.297   294.90
2014.50    0.298   295.84
2015.50    0.300   296.78
2016.50    0.302   297.71
2017.50    0.303   298.62
2018.50    0.305   299.53
2019.50    0.306   300.43
2020.50    0.308   301.32
2021.50    0.309   302.20
2022.50    0.310   303.07
2023.50    0.312   303.94
2024.50    0.313   304.80
2025.50    0.314   305.65
2026.50    0.316   306.49
2027.50    0.317   307.33
2028.50    0.318   308.16
2029.50    0.319   308.99
2030.50    0.320   309.81
2031.50    0.321   310.63
2032.50    0.322   311.44
2033.50    0.323   312.24
2034.50    0.324   313.04
2035.50    0.325   313.84
2036.50    0.326   314.63
2037.50    0.327   315.42
2038.50    0.328   316.20
2039.50    0.328   316.98
2040.50    0.329   317.75
2041.50    0.330   318.52
2042.50    0.331   319.29
2043.50    0.331   320.06
2044.50    0.332   320.82
2045.50    0.333   321.58
2046.50    0.333   322.34
2047.50    0.334   323.09
2048.50    0.334   323.84
2049.50    0.335   324.59
2050.50    0.335   325.34
2051.50    0.336   326.08
2052.50    0.336   326.83
2053.50    0.337   327.57
2054.50    0.337   328.31
2055.50    0.338   329.04
2056.50    0.338   329.78
2057.50    0.338   330.51
2058.50    0.339   331.24
2059.50    0.339   331.97
2060.50    0.339   332.70
2061.50    0.340   333.43
2062.50    0.340   334.16
2063.50    0.340   334.88
2064.50    0.340   335.61
2065.50    0.341   336.33
2066.50    0.341   337.05
2067.50    0.341   337.77
2068.50    0.341   338.49
2069.50    0.341   339.21
2070.50    0.342   339.93
2071.50    0.342   340.65
2072.50    0.342   341.36
2073.50    0.342   342.08
2074.50    0.342   342.80
2075.50    0.342   343.51
2076.50    0.343   344.23
2077.50    0.343   344.94
2078.50    0.343   345.65
2079.50    0.343   346.37
2080.50    0.343   347.08
2081.50    0.343   347.79
2082.50    0.343   348.50
2083.50    0.343   349.21
2084.50    0.344   349.92
2085.50    0.344   350.63
2086.50    0.344   351.34
2087.50    0.344   352.05
2088.50    0.344   352.76
2089.50    0.344   353.47
2090.50    0.344   354.18
2091.50    0.344   354.89
2092.50    0.344   355.59
2093.50    0.344   356.30
2094.50    0.344   357.01
2095.50    0.345   357.71
2096.50    0.345   358.42
2097.50    0.345   359.12
2098.50    0.345   359.83
2099.50    0.345     0.53
2100.50    0.345     1.24
2101.50    0.345     1.94
2102.50    0.345     2.65
2103.50    0.345     3.35
2104.50    0.346     4.05
2105.50    0.346     4.75
2106.50    0.346     5.45
2107.50    0.346     6.15
2108.50    0.346     6.86
2109.50    0.346     7.56
2110.50    0.346     8.25
2111.50    0.346     8.95
2112.50    0.347     9.65
2113.50    0.347    10.35
2114.50    0.347    11.05
2115.50    0.347    11.74
2116.50    0.347    12.44
2117.50    0.347    13.13
2118.50    0.348    13.83
2119.50    0.348    14.52
2120.50    0.348    15.21
2121.50    0.348    15.90
2122.50    0.348    16.59
2123.50    0.349    17.28
2124.50    0.349    17.97
2125.50    0.349    18.66
2126.50    0.349    19.35
2127.50    0.350    20.04
2128.50    0.350    20.72
2129.50    0.350    21.41
2130.50    0.350    22.09
2131.50    0.351    22.77
2132.50    0.351    23.45
2133.50    0.351    24.13
2134.50    0.352    24.81
2135.50    0.352    25.49
2136.50    0.352    26.17
2137.50    0.352    26.84
2138.50    0.353    27.52
2139.50    0.353    28.19
2140.50    0.353    28.86
2141.50    0.354    29.53
2142.50    0.354    30.20
2143.50    0.354    30.87
2144.50    0.355    31.53
2145.50    0.355    32.20
2146.50    0.356    32.86
2147.50    0.356    33.53
2148.50    0.356    34.19
2149.50    0.357    34.85
2150.50    0.357    35.50
2151.50    0.358    36.16
2152.50    0.358    36.82
2153.50    0.358    37.47
2154.50    0.359    38.12
2155.50    0.359    38.77
2156.50    0.360    39.42
2157.50    0.360    40.07
2158.50    0.360    40.71
2159.50    0.361    41.36
2160.50    0.361    42.00
2161.50    0.362    42.64
2162.50    0.362    43.28
2163.50    0.363    43.92
2164.50    0.363    44.56
2165.50    0.364    45.19
2166.50    0.364    45.83
2167.50    0.364    46.46
2168.50    0.365    47.09
2169.50    0.365    47.72
2170.50    0.366    48.34
2171.50    0.366    48.97
2172.50    0.367    49.59
2173.50    0.367    50.21
2174.50    0.368    50.84
2175.50    0.368    51.45
2176.50    0.369    52.07
2177.50    0.369    52.69
2178.50    0.370    53.30
2179.50    0.370    53.91
2180.50    0.371    54.53
2181.50    0.371    55.14
2182.50    0.372    55.74
2183.50    0.372    56.35
2184.50    0.372    56.96
2185.50    0.373    57.56
2186.50    0.373    58.16
2187.50    0.374    58.76
2188.50    0.374    59.36
2189.50    0.375    59.96
2190.50    0.375    60.55
2191.50    0.376    61.15
2192.50    0.376    61.74
2193.50    0.376    62.34
2194.50    0.377    62.93
2195.50    0.377    63.52
2196.50    0.378    64.10
2197.50    0.378    64.69
2198.50    0.379    65.28
2199.50    0.379    65.86
2200.50    0.379    66.44
2201.50    0.380    67.03
2202.50    0.380    67.61
2203.50    0.380    68.19
2204.50    0.381    68.77
2205.50    0.381    69.34
2206.50    0.381    69.92
2207.50    0.382    70.50
2208.50    0.382    71.07
2209.50    0.382    71.64
2210.50    0.383    72.22
2211.50    0.383    72.79
2212.50    0.383    73.36
2213.50    0.383    73.93
2214.50    0.384    74.50
2215.50    0.384    75.07
2216.50    0.384    75.64
2217.50    0.384    76.21
2218.50    0.385    76.77
2219.50    0.385    77.34
2220.50    0.385    77.91
2221.50    0.385    78.47
2222.50    0.385    79.04
2223.50    0.385    79.60






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 16:03:42



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