Double Star Calculator - Orbit

Orbital Elements for DUN5
WDS: DUN5 WDS ID/Discoverer
P: 467.700 Orbital period (years)
a: 7.95563 Semi-major axis (arcseconds)
i: 135.4299 Inclination (degrees)
Ω: 13.8831 Longitude of ascending node (degrees)
T: 1806.599 Epoch of periastron passage (year)
e: 0.462287 Eccentricity
ω: 18.0095 Longitude of periastron (degrees)
Start-Year: 1791.150213 Year
End-Year: 2258.849787 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for DUN5
Position: 013947.83-561136.0 Epoch-2000 right ascension and declination
WDS-ID: 01398-5612 WDS designation
Discoverer Code: DUN5 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 10361J HD catalog number
Hipparcos number: 7751 Hipparcos catalog number
V1: 5.78 Magnitude of the primary
V2: 5.90 Magnitude of the secondary
Equinox: Equinox
Date: 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: Kpp2020f Reference

Double Star Orbit for DUN5



WDS 6th Orbit including measures of DUN5

-- 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 DUN5
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   11.445   184.14
--------------------------
1791.15    4.441    26.19
1792.15    4.433    24.63
1793.15    4.423    23.06
1794.15    4.412    21.48
1795.15    4.401    19.90
1796.15    4.387    18.30
1797.15    4.373    16.70
1798.15    4.358    15.08
1799.15    4.341    13.46
1800.15    4.322    11.82
1801.15    4.303    10.16
1802.15    4.282     8.49
1803.15    4.260     6.81
1804.15    4.237     5.10
1805.15    4.213     3.38
1806.15    4.188     1.63
1807.15    4.161   359.87
1808.15    4.134   358.08
1809.15    4.107   356.27
1810.15    4.078   354.43
1811.15    4.050   352.57
1812.15    4.021   350.67
1813.15    3.992   348.76
1814.15    3.962   346.81
1815.15    3.934   344.84
1816.15    3.905   342.83
1817.15    3.877   340.80
1818.15    3.851   338.74
1819.15    3.825   336.65
1820.15    3.800   334.53
1821.15    3.777   332.39
1822.15    3.755   330.22
1823.15    3.735   328.02
1824.15    3.717   325.81
1825.15    3.701   323.57
1826.15    3.688   321.31
1827.15    3.677   319.04
1828.15    3.669   316.76
1829.15    3.663   314.47
1830.15    3.661   312.18
1831.15    3.661   309.88
1832.15    3.664   307.59
1833.15    3.671   305.30
1834.15    3.680   303.02
1835.15    3.693   300.76
1836.15    3.709   298.51
1837.15    3.728   296.28
1838.15    3.750   294.08
1839.15    3.775   291.91
1840.15    3.803   289.76
1841.15    3.835   287.65
1842.15    3.869   285.58
1843.15    3.905   283.54
1844.15    3.945   281.54
1845.15    3.987   279.59
1846.15    4.032   277.67
1847.15    4.079   275.80
1848.15    4.128   273.97
1849.15    4.179   272.19
1850.15    4.233   270.45
1851.15    4.288   268.75
1852.15    4.345   267.10
1853.15    4.404   265.49
1854.15    4.464   263.93
1855.15    4.525   262.40
1856.15    4.588   260.92
1857.15    4.653   259.48
1858.15    4.718   258.08
1859.15    4.785   256.71
1860.15    4.852   255.39
1861.15    4.920   254.10
1862.15    4.989   252.84
1863.15    5.059   251.62
1864.15    5.129   250.44
1865.15    5.200   249.28
1866.15    5.271   248.16
1867.15    5.343   247.07
1868.15    5.415   246.01
1869.15    5.488   244.97
1870.15    5.560   243.96
1871.15    5.633   242.98
1872.15    5.706   242.02
1873.15    5.779   241.09
1874.15    5.852   240.18
1875.15    5.925   239.29
1876.15    5.998   238.42
1877.15    6.071   237.58
1878.15    6.144   236.75
1879.15    6.217   235.95
1880.15    6.289   235.16
1881.15    6.362   234.39
1882.15    6.434   233.64
1883.15    6.506   232.91
1884.15    6.578   232.19
1885.15    6.649   231.48
1886.15    6.720   230.79
1887.15    6.791   230.12
1888.15    6.861   229.46
1889.15    6.931   228.81
1890.15    7.001   228.18
1891.15    7.070   227.56
1892.15    7.139   226.95
1893.15    7.207   226.35
1894.15    7.275   225.76
1895.15    7.342   225.18
1896.15    7.409   224.62
1897.15    7.476   224.06
1898.15    7.542   223.52
1899.15    7.608   222.98
1900.15    7.673   222.45
1901.15    7.737   221.94
1902.15    7.801   221.43
1903.15    7.865   220.92
1904.15    7.928   220.43
1905.15    7.991   219.95
1906.15    8.053   219.47
1907.15    8.114   219.00
1908.15    8.175   218.53
1909.15    8.235   218.07
1910.15    8.295   217.62
1911.15    8.354   217.18
1912.15    8.413   216.74
1913.15    8.471   216.31
1914.15    8.529   215.88
1915.15    8.586   215.46
1916.15    8.642   215.05
1917.15    8.698   214.64
1918.15    8.753   214.24
1919.15    8.808   213.84
1920.15    8.862   213.44
1921.15    8.915   213.05
1922.15    8.968   212.67
1923.15    9.021   212.29
1924.15    9.073   211.91
1925.15    9.124   211.54
1926.15    9.175   211.17
1927.15    9.225   210.81
1928.15    9.274   210.45
1929.15    9.323   210.09
1930.15    9.371   209.74
1931.15    9.419   209.39
1932.15    9.466   209.05
1933.15    9.513   208.71
1934.15    9.559   208.37
1935.15    9.604   208.03
1936.15    9.649   207.70
1937.15    9.693   207.37
1938.15    9.737   207.04
1939.15    9.780   206.72
1940.15    9.823   206.40
1941.15    9.865   206.08
1942.15    9.906   205.77
1943.15    9.947   205.46
1944.15    9.987   205.15
1945.15   10.027   204.84
1946.15   10.066   204.53
1947.15   10.104   204.23
1948.15   10.142   203.93
1949.15   10.180   203.63
1950.15   10.216   203.34
1951.15   10.253   203.04
1952.15   10.288   202.75
1953.15   10.323   202.46
1954.15   10.358   202.17
1955.15   10.392   201.89
1956.15   10.425   201.60
1957.15   10.458   201.32
1958.15   10.491   201.04
1959.15   10.522   200.76
1960.15   10.553   200.49
1961.15   10.584   200.21
1962.15   10.614   199.94
1963.15   10.644   199.66
1964.15   10.673   199.39
1965.15   10.701   199.12
1966.15   10.729   198.86
1967.15   10.756   198.59
1968.15   10.783   198.32
1969.15   10.809   198.06
1970.15   10.835   197.80
1971.15   10.860   197.53
1972.15   10.885   197.27
1973.15   10.909   197.02
1974.15   10.932   196.76
1975.15   10.955   196.50
1976.15   10.978   196.24
1977.15   11.000   195.99
1978.15   11.021   195.74
1979.15   11.042   195.48
1980.15   11.062   195.23
1981.15   11.082   194.98
1982.15   11.101   194.73
1983.15   11.120   194.48
1984.15   11.138   194.23
1985.15   11.156   193.98
1986.15   11.173   193.74
1987.15   11.190   193.49
1988.15   11.206   193.25
1989.15   11.222   193.00
1990.15   11.237   192.76
1991.15   11.251   192.51
1992.15   11.265   192.27
1993.15   11.279   192.03
1994.15   11.292   191.79
1995.15   11.305   191.55
1996.15   11.317   191.31
1997.15   11.328   191.07
1998.15   11.339   190.83
1999.15   11.350   190.59
2000.15   11.360   190.35
2001.15   11.369   190.11
2002.15   11.378   189.87
2003.15   11.387   189.63
2004.15   11.395   189.40
2005.15   11.402   189.16
2006.15   11.409   188.92
2007.15   11.416   188.69
2008.15   11.422   188.45
2009.15   11.427   188.22
2010.15   11.432   187.98
2011.15   11.437   187.74
2012.15   11.441   187.51
2013.15   11.444   187.27
2014.15   11.447   187.04
2015.15   11.450   186.80
2016.15   11.452   186.57
2017.15   11.454   186.34
2018.15   11.455   186.10
2019.15   11.455   185.87
2020.15   11.455   185.63
2021.15   11.455   185.40
2022.15   11.454   185.16
2023.15   11.453   184.93
2024.15   11.451   184.69
2025.15   11.449   184.46
2026.15   11.446   184.22
2027.15   11.443   183.99
2028.15   11.440   183.75
2029.15   11.435   183.52
2030.15   11.431   183.28
2031.15   11.426   183.05
2032.15   11.420   182.81
2033.15   11.414   182.58
2034.15   11.408   182.34
2035.15   11.401   182.10
2036.15   11.393   181.87
2037.15   11.385   181.63
2038.15   11.377   181.39
2039.15   11.368   181.15
2040.15   11.359   180.91
2041.15   11.349   180.68
2042.15   11.339   180.44
2043.15   11.329   180.20
2044.15   11.318   179.96
2045.15   11.306   179.72
2046.15   11.294   179.48
2047.15   11.282   179.23
2048.15   11.269   178.99
2049.15   11.255   178.75
2050.15   11.242   178.51
2051.15   11.227   178.26
2052.15   11.213   178.02
2053.15   11.198   177.77
2054.15   11.182   177.53
2055.15   11.166   177.28
2056.15   11.149   177.03
2057.15   11.133   176.79
2058.15   11.115   176.54
2059.15   11.097   176.29
2060.15   11.079   176.04
2061.15   11.061   175.79
2062.15   11.041   175.53
2063.15   11.022   175.28
2064.15   11.002   175.03
2065.15   10.982   174.77
2066.15   10.961   174.52
2067.15   10.939   174.26
2068.15   10.918   174.00
2069.15   10.896   173.74
2070.15   10.873   173.48
2071.15   10.850   173.22
2072.15   10.827   172.96
2073.15   10.803   172.70
2074.15   10.779   172.43
2075.15   10.754   172.17
2076.15   10.729   171.90
2077.15   10.703   171.63
2078.15   10.678   171.36
2079.15   10.651   171.09
2080.15   10.624   170.82
2081.15   10.597   170.55
2082.15   10.570   170.27
2083.15   10.542   170.00
2084.15   10.513   169.72
2085.15   10.485   169.44
2086.15   10.455   169.16
2087.15   10.426   168.88
2088.15   10.396   168.59
2089.15   10.365   168.31
2090.15   10.334   168.02
2091.15   10.303   167.73
2092.15   10.272   167.44
2093.15   10.240   167.15
2094.15   10.207   166.85
2095.15   10.174   166.56
2096.15   10.141   166.26
2097.15   10.108   165.96
2098.15   10.074   165.66
2099.15   10.039   165.35
2100.15   10.005   165.05
2101.15    9.970   164.74
2102.15    9.934   164.43
2103.15    9.898   164.11
2104.15    9.862   163.80
2105.15    9.825   163.48
2106.15    9.788   163.16
2107.15    9.751   162.84
2108.15    9.713   162.51
2109.15    9.675   162.19
2110.15    9.637   161.86
2111.15    9.598   161.52
2112.15    9.559   161.19
2113.15    9.519   160.85
2114.15    9.480   160.51
2115.15    9.439   160.16
2116.15    9.399   159.82
2117.15    9.358   159.47
2118.15    9.317   159.11
2119.15    9.275   158.76
2120.15    9.233   158.40
2121.15    9.191   158.04
2122.15    9.148   157.67
2123.15    9.105   157.30
2124.15    9.062   156.93
2125.15    9.019   156.55
2126.15    8.975   156.17
2127.15    8.931   155.79
2128.15    8.886   155.40
2129.15    8.841   155.01
2130.15    8.796   154.61
2131.15    8.751   154.21
2132.15    8.705   153.81
2133.15    8.659   153.40
2134.15    8.613   152.99
2135.15    8.567   152.57
2136.15    8.520   152.15
2137.15    8.473   151.72
2138.15    8.426   151.29
2139.15    8.378   150.86
2140.15    8.330   150.41
2141.15    8.282   149.97
2142.15    8.234   149.52
2143.15    8.186   149.06
2144.15    8.137   148.60
2145.15    8.088   148.13
2146.15    8.039   147.66
2147.15    7.989   147.18
2148.15    7.940   146.69
2149.15    7.890   146.20
2150.15    7.840   145.70
2151.15    7.790   145.20
2152.15    7.740   144.69
2153.15    7.689   144.17
2154.15    7.639   143.65
2155.15    7.588   143.12
2156.15    7.537   142.58
2157.15    7.486   142.04
2158.15    7.435   141.48
2159.15    7.384   140.92
2160.15    7.333   140.35
2161.15    7.281   139.78
2162.15    7.230   139.19
2163.15    7.178   138.60
2164.15    7.127   138.00
2165.15    7.075   137.39
2166.15    7.024   136.77
2167.15    6.972   136.14
2168.15    6.920   135.50
2169.15    6.869   134.85
2170.15    6.817   134.20
2171.15    6.766   133.53
2172.15    6.714   132.85
2173.15    6.663   132.16
2174.15    6.611   131.47
2175.15    6.560   130.76
2176.15    6.509   130.04
2177.15    6.458   129.30
2178.15    6.408   128.56
2179.15    6.357   127.80
2180.15    6.307   127.04
2181.15    6.256   126.26
2182.15    6.207   125.46
2183.15    6.157   124.66
2184.15    6.108   123.84
2185.15    6.058   123.01
2186.15    6.010   122.16
2187.15    5.961   121.30
2188.15    5.913   120.43
2189.15    5.866   119.54
2190.15    5.819   118.64
2191.15    5.772   117.73
2192.15    5.725   116.79
2193.15    5.680   115.85
2194.15    5.634   114.89
2195.15    5.590   113.91
2196.15    5.546   112.92
2197.15    5.502   111.91
2198.15    5.459   110.88
2199.15    5.417   109.84
2200.15    5.375   108.79
2201.15    5.335   107.71
2202.15    5.294   106.62
2203.15    5.255   105.52
2204.15    5.217   104.39
2205.15    5.179   103.26
2206.15    5.142   102.10
2207.15    5.106   100.93
2208.15    5.071    99.74
2209.15    5.037    98.53
2210.15    5.004    97.31
2211.15    4.971    96.08
2212.15    4.940    94.82
2213.15    4.910    93.55
2214.15    4.881    92.27
2215.15    4.853    90.97
2216.15    4.826    89.66
2217.15    4.800    88.33
2218.15    4.775    86.98
2219.15    4.751    85.63
2220.15    4.729    84.26
2221.15    4.707    82.88
2222.15    4.687    81.48
2223.15    4.668    80.07
2224.15    4.650    78.66
2225.15    4.633    77.23
2226.15    4.617    75.79
2227.15    4.602    74.34
2228.15    4.589    72.88
2229.15    4.576    71.42
2230.15    4.564    69.94
2231.15    4.554    68.46
2232.15    4.544    66.98
2233.15    4.536    65.48
2234.15    4.528    63.98
2235.15    4.521    62.48
2236.15    4.515    60.97
2237.15    4.510    59.46
2238.15    4.505    57.95
2239.15    4.501    56.43
2240.15    4.498    54.91
2241.15    4.495    53.39
2242.15    4.492    51.86
2243.15    4.490    50.34
2244.15    4.488    48.81
2245.15    4.487    47.28
2246.15    4.485    45.75
2247.15    4.484    44.22
2248.15    4.483    42.69
2249.15    4.481    41.16
2250.15    4.479    39.63
2251.15    4.477    38.09
2252.15    4.475    36.55
2253.15    4.472    35.02
2254.15    4.468    33.48
2255.15    4.464    31.93
2256.15    4.459    30.39
2257.15    4.453    28.84
2258.15    4.446    27.28






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 14:52:36



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