Double Star Calculator - Orbit

Orbital Elements for A1971
WDS: A1971 WDS ID/Discoverer
P: 572.520 Orbital period (years)
a: 1.07 Semi-major axis (arcseconds)
i: 125.6 Inclination (degrees)
Ω: 202.8 Longitude of ascending node (degrees)
T: 1910.430 Epoch of periastron passage (year)
e: 0.409 Eccentricity
ω: 99.1 Longitude of periastron (degrees)
Start-Year: 1738.74 Year
End-Year: 2311.26 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1971
Position: 080603.52-004635.2 Epoch-2000 right ascension and declination
WDS-ID: 08061-0047 WDS designation
Discoverer Code: A1971 Discover designation and components
ADS number: 6582 Aitken Double Star catalog
HD number: 67010 HD catalog number
Hipparcos number: 39641 Hipparcos catalog number
V1: 9.20 Magnitude of the primary
V2: 9.43 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 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: Tok2015c Reference

Double Star Orbit for A1971



WDS 6th Orbit including measures of A1971

-- 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 A1971
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.962   357.68
--------------------------
1738.74    1.090   232.93
1739.74    1.091   232.61
1740.74    1.092   232.29
1741.74    1.093   231.97
1742.74    1.094   231.65
1743.74    1.095   231.33
1744.74    1.095   231.01
1745.74    1.096   230.69
1746.74    1.097   230.38
1747.74    1.097   230.06
1748.74    1.098   229.74
1749.74    1.099   229.42
1750.74    1.099   229.11
1751.74    1.100   228.79
1752.74    1.100   228.47
1753.74    1.100   228.16
1754.74    1.101   227.84
1755.74    1.101   227.53
1756.74    1.101   227.21
1757.74    1.102   226.90
1758.74    1.102   226.58
1759.74    1.102   226.27
1760.74    1.102   225.95
1761.74    1.102   225.64
1762.74    1.102   225.32
1763.74    1.102   225.01
1764.74    1.102   224.69
1765.74    1.101   224.38
1766.74    1.101   224.06
1767.74    1.101   223.75
1768.74    1.101   223.43
1769.74    1.100   223.11
1770.74    1.100   222.80
1771.74    1.099   222.48
1772.74    1.099   222.16
1773.74    1.098   221.85
1774.74    1.097   221.53
1775.74    1.097   221.21
1776.74    1.096   220.89
1777.74    1.095   220.58
1778.74    1.094   220.26
1779.74    1.093   219.94
1780.74    1.092   219.62
1781.74    1.091   219.30
1782.74    1.090   218.97
1783.74    1.088   218.65
1784.74    1.087   218.33
1785.74    1.086   218.00
1786.74    1.084   217.68
1787.74    1.083   217.35
1788.74    1.081   217.03
1789.74    1.080   216.70
1790.74    1.078   216.37
1791.74    1.076   216.04
1792.74    1.074   215.71
1793.74    1.072   215.38
1794.74    1.070   215.04
1795.74    1.068   214.71
1796.74    1.066   214.37
1797.74    1.064   214.04
1798.74    1.061   213.70
1799.74    1.059   213.36
1800.74    1.056   213.02
1801.74    1.054   212.67
1802.74    1.051   212.33
1803.74    1.048   211.98
1804.74    1.045   211.63
1805.74    1.042   211.28
1806.74    1.039   210.93
1807.74    1.036   210.57
1808.74    1.033   210.21
1809.74    1.030   209.86
1810.74    1.026   209.49
1811.74    1.023   209.13
1812.74    1.019   208.76
1813.74    1.016   208.39
1814.74    1.012   208.02
1815.74    1.008   207.65
1816.74    1.004   207.27
1817.74    1.000   206.89
1818.74    0.996   206.50
1819.74    0.992   206.12
1820.74    0.987   205.73
1821.74    0.983   205.33
1822.74    0.978   204.93
1823.74    0.974   204.53
1824.74    0.969   204.13
1825.74    0.964   203.72
1826.74    0.959   203.30
1827.74    0.954   202.89
1828.74    0.948   202.46
1829.74    0.943   202.04
1830.74    0.938   201.60
1831.74    0.932   201.17
1832.74    0.926   200.72
1833.74    0.921   200.27
1834.74    0.915   199.82
1835.74    0.909   199.36
1836.74    0.903   198.89
1837.74    0.896   198.42
1838.74    0.890   197.94
1839.74    0.883   197.45
1840.74    0.877   196.96
1841.74    0.870   196.46
1842.74    0.863   195.95
1843.74    0.856   195.43
1844.74    0.849   194.91
1845.74    0.842   194.37
1846.74    0.834   193.83
1847.74    0.827   193.27
1848.74    0.819   192.71
1849.74    0.812   192.13
1850.74    0.804   191.55
1851.74    0.796   190.95
1852.74    0.788   190.34
1853.74    0.780   189.72
1854.74    0.771   189.08
1855.74    0.763   188.43
1856.74    0.754   187.77
1857.74    0.746   187.09
1858.74    0.737   186.39
1859.74    0.728   185.68
1860.74    0.719   184.95
1861.74    0.710   184.20
1862.74    0.701   183.43
1863.74    0.692   182.64
1864.74    0.682   181.83
1865.74    0.673   181.00
1866.74    0.663   180.14
1867.74    0.654   179.26
1868.74    0.644   178.35
1869.74    0.634   177.42
1870.74    0.625   176.45
1871.74    0.615   175.46
1872.74    0.605   174.43
1873.74    0.595   173.37
1874.74    0.585   172.27
1875.74    0.575   171.13
1876.74    0.565   169.95
1877.74    0.555   168.74
1878.74    0.545   167.47
1879.74    0.535   166.16
1880.74    0.526   164.81
1881.74    0.516   163.40
1882.74    0.506   161.93
1883.74    0.497   160.41
1884.74    0.487   158.83
1885.74    0.478   157.19
1886.74    0.469   155.49
1887.74    0.460   153.71
1888.74    0.452   151.87
1889.74    0.443   149.96
1890.74    0.435   147.98
1891.74    0.427   145.92
1892.74    0.420   143.79
1893.74    0.413   141.59
1894.74    0.406   139.31
1895.74    0.400   136.96
1896.74    0.394   134.53
1897.74    0.389   132.04
1898.74    0.385   129.49
1899.74    0.381   126.88
1900.74    0.377   124.21
1901.74    0.374   121.50
1902.74    0.372   118.75
1903.74    0.370   115.98
1904.74    0.370   113.18
1905.74    0.369   110.38
1906.74    0.370   107.58
1907.74    0.371   104.79
1908.74    0.373   102.02
1909.74    0.375    99.28
1910.74    0.378    96.58
1911.74    0.382    93.93
1912.74    0.386    91.33
1913.74    0.391    88.80
1914.74    0.396    86.32
1915.74    0.402    83.92
1916.74    0.408    81.58
1917.74    0.414    79.32
1918.74    0.422    77.13
1919.74    0.429    75.01
1920.74    0.437    72.97
1921.74    0.445    71.00
1922.74    0.453    69.10
1923.74    0.461    67.27
1924.74    0.470    65.51
1925.74    0.479    63.81
1926.74    0.488    62.17
1927.74    0.497    60.59
1928.74    0.506    59.08
1929.74    0.516    57.61
1930.74    0.525    56.20
1931.74    0.534    54.83
1932.74    0.544    53.52
1933.74    0.553    52.25
1934.74    0.563    51.02
1935.74    0.572    49.83
1936.74    0.582    48.68
1937.74    0.591    47.57
1938.74    0.600    46.49
1939.74    0.609    45.44
1940.74    0.618    44.43
1941.74    0.628    43.44
1942.74    0.637    42.49
1943.74    0.645    41.56
1944.74    0.654    40.65
1945.74    0.663    39.77
1946.74    0.671    38.91
1947.74    0.680    38.07
1948.74    0.688    37.25
1949.74    0.696    36.46
1950.74    0.704    35.68
1951.74    0.712    34.91
1952.74    0.720    34.17
1953.74    0.728    33.44
1954.74    0.735    32.72
1955.74    0.743    32.02
1956.74    0.750    31.34
1957.74    0.757    30.66
1958.74    0.764    30.00
1959.74    0.771    29.35
1960.74    0.777    28.71
1961.74    0.784    28.09
1962.74    0.790    27.47
1963.74    0.797    26.86
1964.74    0.803    26.26
1965.74    0.809    25.67
1966.74    0.814    25.09
1967.74    0.820    24.52
1968.74    0.826    23.96
1969.74    0.831    23.40
1970.74    0.836    22.85
1971.74    0.842    22.31
1972.74    0.847    21.77
1973.74    0.851    21.24
1974.74    0.856    20.71
1975.74    0.861    20.20
1976.74    0.865    19.68
1977.74    0.870    19.17
1978.74    0.874    18.67
1979.74    0.878    18.17
1980.74    0.882    17.68
1981.74    0.886    17.19
1982.74    0.890    16.70
1983.74    0.893    16.22
1984.74    0.897    15.74
1985.74    0.900    15.27
1986.74    0.903    14.80
1987.74    0.907    14.33
1988.74    0.910    13.87
1989.74    0.913    13.41
1990.74    0.916    12.95
1991.74    0.918    12.50
1992.74    0.921    12.04
1993.74    0.923    11.60
1994.74    0.926    11.15
1995.74    0.928    10.70
1996.74    0.931    10.26
1997.74    0.933     9.82
1998.74    0.935     9.38
1999.74    0.937     8.94
2000.74    0.939     8.51
2001.74    0.940     8.08
2002.74    0.942     7.65
2003.74    0.944     7.22
2004.74    0.945     6.79
2005.74    0.947     6.36
2006.74    0.948     5.93
2007.74    0.950     5.51
2008.74    0.951     5.09
2009.74    0.952     4.66
2010.74    0.953     4.24
2011.74    0.954     3.82
2012.74    0.955     3.40
2013.74    0.956     2.98
2014.74    0.957     2.56
2015.74    0.957     2.15
2016.74    0.958     1.73
2017.74    0.959     1.31
2018.74    0.959     0.90
2019.74    0.960     0.48
2020.74    0.960     0.07
2021.74    0.961   359.65
2022.74    0.961   359.24
2023.74    0.961   358.82
2024.74    0.961   358.41
2025.74    0.961   358.00
2026.74    0.962   357.58
2027.74    0.962   357.17
2028.74    0.962   356.76
2029.74    0.962   356.34
2030.74    0.961   355.93
2031.74    0.961   355.51
2032.74    0.961   355.10
2033.74    0.961   354.69
2034.74    0.961   354.27
2035.74    0.960   353.86
2036.74    0.960   353.44
2037.74    0.959   353.03
2038.74    0.959   352.61
2039.74    0.959   352.20
2040.74    0.958   351.78
2041.74    0.957   351.36
2042.74    0.957   350.95
2043.74    0.956   350.53
2044.74    0.956   350.11
2045.74    0.955   349.69
2046.74    0.954   349.27
2047.74    0.953   348.85
2048.74    0.953   348.43
2049.74    0.952   348.01
2050.74    0.951   347.58
2051.74    0.950   347.16
2052.74    0.949   346.74
2053.74    0.948   346.31
2054.74    0.948   345.89
2055.74    0.947   345.46
2056.74    0.946   345.03
2057.74    0.945   344.61
2058.74    0.944   344.18
2059.74    0.943   343.75
2060.74    0.942   343.32
2061.74    0.941   342.88
2062.74    0.939   342.45
2063.74    0.938   342.02
2064.74    0.937   341.58
2065.74    0.936   341.15
2066.74    0.935   340.71
2067.74    0.934   340.27
2068.74    0.933   339.83
2069.74    0.932   339.39
2070.74    0.931   338.95
2071.74    0.929   338.51
2072.74    0.928   338.07
2073.74    0.927   337.62
2074.74    0.926   337.18
2075.74    0.925   336.73
2076.74    0.923   336.28
2077.74    0.922   335.83
2078.74    0.921   335.38
2079.74    0.920   334.93
2080.74    0.919   334.48
2081.74    0.917   334.02
2082.74    0.916   333.57
2083.74    0.915   333.11
2084.74    0.914   332.66
2085.74    0.913   332.20
2086.74    0.911   331.74
2087.74    0.910   331.28
2088.74    0.909   330.81
2089.74    0.908   330.35
2090.74    0.907   329.89
2091.74    0.905   329.42
2092.74    0.904   328.95
2093.74    0.903   328.49
2094.74    0.902   328.02
2095.74    0.901   327.55
2096.74    0.900   327.07
2097.74    0.899   326.60
2098.74    0.897   326.13
2099.74    0.896   325.65
2100.74    0.895   325.17
2101.74    0.894   324.70
2102.74    0.893   324.22
2103.74    0.892   323.74
2104.74    0.891   323.26
2105.74    0.890   322.77
2106.74    0.889   322.29
2107.74    0.888   321.81
2108.74    0.887   321.32
2109.74    0.886   320.83
2110.74    0.885   320.35
2111.74    0.884   319.86
2112.74    0.883   319.37
2113.74    0.882   318.88
2114.74    0.882   318.39
2115.74    0.881   317.89
2116.74    0.880   317.40
2117.74    0.879   316.91
2118.74    0.878   316.41
2119.74    0.878   315.92
2120.74    0.877   315.42
2121.74    0.876   314.92
2122.74    0.875   314.42
2123.74    0.875   313.92
2124.74    0.874   313.42
2125.74    0.873   312.92
2126.74    0.873   312.42
2127.74    0.872   311.92
2128.74    0.872   311.41
2129.74    0.871   310.91
2130.74    0.871   310.41
2131.74    0.870   309.90
2132.74    0.870   309.40
2133.74    0.869   308.89
2134.74    0.869   308.38
2135.74    0.868   307.88
2136.74    0.868   307.37
2137.74    0.868   306.86
2138.74    0.868   306.35
2139.74    0.867   305.85
2140.74    0.867   305.34
2141.74    0.867   304.83
2142.74    0.867   304.32
2143.74    0.866   303.81
2144.74    0.866   303.30
2145.74    0.866   302.79
2146.74    0.866   302.28
2147.74    0.866   301.77
2148.74    0.866   301.26
2149.74    0.866   300.75
2150.74    0.866   300.24
2151.74    0.866   299.73
2152.74    0.866   299.22
2153.74    0.866   298.71
2154.74    0.867   298.20
2155.74    0.867   297.69
2156.74    0.867   297.19
2157.74    0.867   296.68
2158.74    0.867   296.17
2159.74    0.868   295.66
2160.74    0.868   295.15
2161.74    0.868   294.65
2162.74    0.869   294.14
2163.74    0.869   293.63
2164.74    0.870   293.13
2165.74    0.870   292.62
2166.74    0.871   292.12
2167.74    0.871   291.61
2168.74    0.872   291.11
2169.74    0.872   290.61
2170.74    0.873   290.10
2171.74    0.874   289.60
2172.74    0.874   289.10
2173.74    0.875   288.60
2174.74    0.876   288.10
2175.74    0.877   287.61
2176.74    0.877   287.11
2177.74    0.878   286.61
2178.74    0.879   286.12
2179.74    0.880   285.62
2180.74    0.881   285.13
2181.74    0.882   284.64
2182.74    0.883   284.15
2183.74    0.884   283.66
2184.74    0.885   283.17
2185.74    0.886   282.68
2186.74    0.887   282.19
2187.74    0.888   281.71
2188.74    0.889   281.22
2189.74    0.890   280.74
2190.74    0.891   280.26
2191.74    0.893   279.78
2192.74    0.894   279.30
2193.74    0.895   278.82
2194.74    0.896   278.34
2195.74    0.898   277.87
2196.74    0.899   277.39
2197.74    0.900   276.92
2198.74    0.902   276.45
2199.74    0.903   275.98
2200.74    0.904   275.51
2201.74    0.906   275.04
2202.74    0.907   274.58
2203.74    0.909   274.11
2204.74    0.910   273.65
2205.74    0.912   273.19
2206.74    0.913   272.73
2207.74    0.915   272.27
2208.74    0.916   271.82
2209.74    0.918   271.36
2210.74    0.919   270.91
2211.74    0.921   270.46
2212.74    0.923   270.01
2213.74    0.924   269.56
2214.74    0.926   269.11
2215.74    0.928   268.67
2216.74    0.929   268.22
2217.74    0.931   267.78
2218.74    0.933   267.34
2219.74    0.934   266.90
2220.74    0.936   266.46
2221.74    0.938   266.03
2222.74    0.940   265.59
2223.74    0.942   265.16
2224.74    0.943   264.73
2225.74    0.945   264.30
2226.74    0.947   263.88
2227.74    0.949   263.45
2228.74    0.951   263.03
2229.74    0.952   262.60
2230.74    0.954   262.18
2231.74    0.956   261.76
2232.74    0.958   261.35
2233.74    0.960   260.93
2234.74    0.962   260.52
2235.74    0.964   260.10
2236.74    0.966   259.69
2237.74    0.968   259.28
2238.74    0.970   258.88
2239.74    0.971   258.47
2240.74    0.973   258.07
2241.74    0.975   257.66
2242.74    0.977   257.26
2243.74    0.979   256.86
2244.74    0.981   256.46
2245.74    0.983   256.07
2246.74    0.985   255.67
2247.74    0.987   255.28
2248.74    0.989   254.89
2249.74    0.991   254.50
2250.74    0.993   254.11
2251.74    0.995   253.72
2252.74    0.997   253.34
2253.74    0.999   252.95
2254.74    1.001   252.57
2255.74    1.003   252.19
2256.74    1.004   251.81
2257.74    1.006   251.43
2258.74    1.008   251.05
2259.74    1.010   250.68
2260.74    1.012   250.30
2261.74    1.014   249.93
2262.74    1.016   249.56
2263.74    1.018   249.19
2264.74    1.020   248.82
2265.74    1.022   248.45
2266.74    1.024   248.09
2267.74    1.025   247.72
2268.74    1.027   247.36
2269.74    1.029   247.00
2270.74    1.031   246.64
2271.74    1.033   246.28
2272.74    1.035   245.92
2273.74    1.036   245.57
2274.74    1.038   245.21
2275.74    1.040   244.86
2276.74    1.042   244.50
2277.74    1.044   244.15
2278.74    1.045   243.80
2279.74    1.047   243.45
2280.74    1.049   243.10
2281.74    1.050   242.76
2282.74    1.052   242.41
2283.74    1.054   242.06
2284.74    1.055   241.72
2285.74    1.057   241.38
2286.74    1.059   241.04
2287.74    1.060   240.70
2288.74    1.062   240.36
2289.74    1.063   240.02
2290.74    1.065   239.68
2291.74    1.066   239.34
2292.74    1.068   239.01
2293.74    1.069   238.67
2294.74    1.071   238.34
2295.74    1.072   238.00
2296.74    1.073   237.67
2297.74    1.075   237.34
2298.74    1.076   237.01
2299.74    1.077   236.68
2300.74    1.079   236.35
2301.74    1.080   236.02
2302.74    1.081   235.70
2303.74    1.082   235.37
2304.74    1.084   235.04
2305.74    1.085   234.72
2306.74    1.086   234.39
2307.74    1.087   234.07
2308.74    1.088   233.74
2309.74    1.089   233.42
2310.74    1.090   233.10






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 16:04:17



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