Double Star Calculator - Orbit

Orbital Elements for HO213
WDS: HO213 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 0.354 Semi-major axis (arcseconds)
i: 33.2 Inclination (degrees)
Ω: 111.7 Longitude of ascending node (degrees)
T: 1995.820 Epoch of periastron passage (year)
e: 0.156 Eccentricity
ω: 353.2 Longitude of periastron (degrees)
Start-Year: 1775.0 Year
End-Year: 2275.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HO213
Position: 010358.75+352810.1 Epoch-2000 right ascension and declination
WDS-ID: 01040+3528 WDS designation
Discoverer Code: HO213 Discover designation and components
ADS number: 873 Aitken Double Star catalog
HD number: 6264 HD catalog number
Hipparcos number: 4990 Hipparcos catalog number
V1: 7.81 Magnitude of the primary
V2: 8.29 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2001 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: Doc2007d Reference

Double Star Orbit for HO213



WDS 6th Orbit including measures of HO213

-- 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 HO213
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.297   131.65
--------------------------
1775.00    0.405   299.08
1776.00    0.405   299.54
1777.00    0.404   299.99
1778.00    0.404   300.45
1779.00    0.403   300.91
1780.00    0.403   301.36
1781.00    0.403   301.82
1782.00    0.402   302.29
1783.00    0.402   302.75
1784.00    0.401   303.21
1785.00    0.401   303.67
1786.00    0.400   304.14
1787.00    0.399   304.61
1788.00    0.399   305.07
1789.00    0.398   305.54
1790.00    0.398   306.01
1791.00    0.397   306.49
1792.00    0.396   306.96
1793.00    0.396   307.43
1794.00    0.395   307.91
1795.00    0.395   308.39
1796.00    0.394   308.87
1797.00    0.393   309.35
1798.00    0.392   309.84
1799.00    0.392   310.32
1800.00    0.391   310.81
1801.00    0.390   311.30
1802.00    0.389   311.79
1803.00    0.389   312.28
1804.00    0.388   312.78
1805.00    0.387   313.27
1806.00    0.386   313.77
1807.00    0.385   314.27
1808.00    0.384   314.78
1809.00    0.384   315.28
1810.00    0.383   315.79
1811.00    0.382   316.30
1812.00    0.381   316.81
1813.00    0.380   317.33
1814.00    0.379   317.85
1815.00    0.378   318.37
1816.00    0.377   318.89
1817.00    0.376   319.42
1818.00    0.375   319.95
1819.00    0.374   320.48
1820.00    0.373   321.01
1821.00    0.372   321.55
1822.00    0.371   322.09
1823.00    0.370   322.63
1824.00    0.369   323.18
1825.00    0.368   323.73
1826.00    0.367   324.28
1827.00    0.366   324.84
1828.00    0.365   325.40
1829.00    0.364   325.96
1830.00    0.362   326.52
1831.00    0.361   327.09
1832.00    0.360   327.67
1833.00    0.359   328.24
1834.00    0.358   328.82
1835.00    0.357   329.41
1836.00    0.356   330.00
1837.00    0.354   330.59
1838.00    0.353   331.18
1839.00    0.352   331.78
1840.00    0.351   332.39
1841.00    0.350   332.99
1842.00    0.349   333.61
1843.00    0.347   334.22
1844.00    0.346   334.84
1845.00    0.345   335.47
1846.00    0.344   336.09
1847.00    0.343   336.73
1848.00    0.341   337.36
1849.00    0.340   338.01
1850.00    0.339   338.65
1851.00    0.338   339.30
1852.00    0.337   339.96
1853.00    0.335   340.62
1854.00    0.334   341.29
1855.00    0.333   341.96
1856.00    0.332   342.63
1857.00    0.331   343.31
1858.00    0.329   344.00
1859.00    0.328   344.69
1860.00    0.327   345.38
1861.00    0.326   346.08
1862.00    0.325   346.79
1863.00    0.323   347.50
1864.00    0.322   348.22
1865.00    0.321   348.94
1866.00    0.320   349.66
1867.00    0.319   350.40
1868.00    0.317   351.13
1869.00    0.316   351.88
1870.00    0.315   352.62
1871.00    0.314   353.38
1872.00    0.313   354.14
1873.00    0.312   354.90
1874.00    0.311   355.67
1875.00    0.310   356.45
1876.00    0.308   357.23
1877.00    0.307   358.02
1878.00    0.306   358.81
1879.00    0.305   359.61
1880.00    0.304     0.41
1881.00    0.303     1.22
1882.00    0.302     2.03
1883.00    0.301     2.85
1884.00    0.300     3.68
1885.00    0.299     4.51
1886.00    0.298     5.34
1887.00    0.297     6.19
1888.00    0.296     7.03
1889.00    0.295     7.88
1890.00    0.294     8.74
1891.00    0.294     9.60
1892.00    0.293    10.47
1893.00    0.292    11.34
1894.00    0.291    12.22
1895.00    0.290    13.10
1896.00    0.290    13.99
1897.00    0.289    14.88
1898.00    0.288    15.78
1899.00    0.287    16.68
1900.00    0.287    17.59
1901.00    0.286    18.50
1902.00    0.285    19.41
1903.00    0.285    20.33
1904.00    0.284    21.25
1905.00    0.283    22.18
1906.00    0.283    23.11
1907.00    0.282    24.04
1908.00    0.282    24.98
1909.00    0.281    25.92
1910.00    0.281    26.86
1911.00    0.280    27.81
1912.00    0.280    28.76
1913.00    0.280    29.71
1914.00    0.279    30.67
1915.00    0.279    31.62
1916.00    0.279    32.58
1917.00    0.278    33.54
1918.00    0.278    34.51
1919.00    0.278    35.47
1920.00    0.278    36.44
1921.00    0.277    37.41
1922.00    0.277    38.38
1923.00    0.277    39.35
1924.00    0.277    40.32
1925.00    0.277    41.29
1926.00    0.277    42.27
1927.00    0.277    43.24
1928.00    0.277    44.21
1929.00    0.277    45.19
1930.00    0.277    46.16
1931.00    0.277    47.14
1932.00    0.277    48.11
1933.00    0.277    49.08
1934.00    0.277    50.06
1935.00    0.277    51.03
1936.00    0.277    52.00
1937.00    0.277    52.97
1938.00    0.278    53.94
1939.00    0.278    54.90
1940.00    0.278    55.87
1941.00    0.278    56.83
1942.00    0.278    57.80
1943.00    0.279    58.76
1944.00    0.279    59.72
1945.00    0.279    60.67
1946.00    0.280    61.63
1947.00    0.280    62.58
1948.00    0.280    63.53
1949.00    0.281    64.48
1950.00    0.281    65.42
1951.00    0.281    66.37
1952.00    0.282    67.31
1953.00    0.282    68.25
1954.00    0.283    69.18
1955.00    0.283    70.12
1956.00    0.283    71.05
1957.00    0.284    71.97
1958.00    0.284    72.90
1959.00    0.285    73.82
1960.00    0.285    74.74
1961.00    0.285    75.66
1962.00    0.286    76.57
1963.00    0.286    77.48
1964.00    0.287    78.39
1965.00    0.287    79.29
1966.00    0.288    80.20
1967.00    0.288    81.09
1968.00    0.289    81.99
1969.00    0.289    82.89
1970.00    0.289    83.78
1971.00    0.290    84.67
1972.00    0.290    85.55
1973.00    0.291    86.43
1974.00    0.291    87.32
1975.00    0.292    88.19
1976.00    0.292    89.07
1977.00    0.292    89.94
1978.00    0.293    90.81
1979.00    0.293    91.68
1980.00    0.294    92.55
1981.00    0.294    93.41
1982.00    0.294    94.27
1983.00    0.295    95.13
1984.00    0.295    95.99
1985.00    0.295    96.85
1986.00    0.296    97.70
1987.00    0.296    98.55
1988.00    0.296    99.40
1989.00    0.297   100.25
1990.00    0.297   101.10
1991.00    0.297   101.94
1992.00    0.297   102.79
1993.00    0.298   103.63
1994.00    0.298   104.47
1995.00    0.298   105.31
1996.00    0.298   106.15
1997.00    0.298   106.99
1998.00    0.299   107.83
1999.00    0.299   108.67
2000.00    0.299   109.50
2001.00    0.299   110.34
2002.00    0.299   111.17
2003.00    0.299   112.00
2004.00    0.299   112.84
2005.00    0.299   113.67
2006.00    0.299   114.50
2007.00    0.299   115.34
2008.00    0.299   116.17
2009.00    0.299   117.00
2010.00    0.299   117.83
2011.00    0.299   118.67
2012.00    0.299   119.50
2013.00    0.299   120.33
2014.00    0.299   121.17
2015.00    0.299   122.00
2016.00    0.299   122.84
2017.00    0.299   123.67
2018.00    0.299   124.51
2019.00    0.298   125.34
2020.00    0.298   126.18
2021.00    0.298   127.02
2022.00    0.298   127.86
2023.00    0.298   128.70
2024.00    0.298   129.54
2025.00    0.297   130.38
2026.00    0.297   131.23
2027.00    0.297   132.07
2028.00    0.297   132.92
2029.00    0.296   133.77
2030.00    0.296   134.62
2031.00    0.296   135.47
2032.00    0.296   136.32
2033.00    0.295   137.17
2034.00    0.295   138.03
2035.00    0.295   138.88
2036.00    0.295   139.74
2037.00    0.294   140.60
2038.00    0.294   141.47
2039.00    0.294   142.33
2040.00    0.293   143.20
2041.00    0.293   144.06
2042.00    0.293   144.93
2043.00    0.292   145.80
2044.00    0.292   146.68
2045.00    0.292   147.55
2046.00    0.292   148.43
2047.00    0.291   149.31
2048.00    0.291   150.19
2049.00    0.291   151.07
2050.00    0.290   151.95
2051.00    0.290   152.84
2052.00    0.290   153.73
2053.00    0.289   154.62
2054.00    0.289   155.51
2055.00    0.289   156.40
2056.00    0.289   157.29
2057.00    0.288   158.19
2058.00    0.288   159.09
2059.00    0.288   159.98
2060.00    0.288   160.88
2061.00    0.287   161.79
2062.00    0.287   162.69
2063.00    0.287   163.59
2064.00    0.287   164.50
2065.00    0.287   165.41
2066.00    0.287   166.31
2067.00    0.286   167.22
2068.00    0.286   168.13
2069.00    0.286   169.04
2070.00    0.286   169.95
2071.00    0.286   170.86
2072.00    0.286   171.77
2073.00    0.286   172.69
2074.00    0.286   173.60
2075.00    0.286   174.51
2076.00    0.286   175.42
2077.00    0.286   176.34
2078.00    0.286   177.25
2079.00    0.286   178.16
2080.00    0.286   179.07
2081.00    0.286   179.98
2082.00    0.286   180.89
2083.00    0.286   181.80
2084.00    0.287   182.71
2085.00    0.287   183.62
2086.00    0.287   184.53
2087.00    0.287   185.43
2088.00    0.287   186.34
2089.00    0.288   187.24
2090.00    0.288   188.14
2091.00    0.288   189.04
2092.00    0.288   189.94
2093.00    0.289   190.83
2094.00    0.289   191.73
2095.00    0.289   192.62
2096.00    0.290   193.51
2097.00    0.290   194.39
2098.00    0.291   195.28
2099.00    0.291   196.16
2100.00    0.292   197.04
2101.00    0.292   197.91
2102.00    0.293   198.79
2103.00    0.293   199.66
2104.00    0.294   200.52
2105.00    0.294   201.38
2106.00    0.295   202.24
2107.00    0.295   203.10
2108.00    0.296   203.95
2109.00    0.297   204.80
2110.00    0.297   205.65
2111.00    0.298   206.49
2112.00    0.299   207.33
2113.00    0.299   208.16
2114.00    0.300   208.99
2115.00    0.301   209.82
2116.00    0.302   210.64
2117.00    0.302   211.45
2118.00    0.303   212.27
2119.00    0.304   213.08
2120.00    0.305   213.88
2121.00    0.306   214.68
2122.00    0.307   215.48
2123.00    0.307   216.27
2124.00    0.308   217.05
2125.00    0.309   217.84
2126.00    0.310   218.61
2127.00    0.311   219.39
2128.00    0.312   220.16
2129.00    0.313   220.92
2130.00    0.314   221.68
2131.00    0.315   222.43
2132.00    0.316   223.18
2133.00    0.317   223.93
2134.00    0.318   224.67
2135.00    0.319   225.40
2136.00    0.320   226.14
2137.00    0.321   226.86
2138.00    0.322   227.58
2139.00    0.323   228.30
2140.00    0.324   229.01
2141.00    0.325   229.72
2142.00    0.326   230.43
2143.00    0.327   231.13
2144.00    0.328   231.82
2145.00    0.329   232.51
2146.00    0.330   233.20
2147.00    0.331   233.88
2148.00    0.333   234.55
2149.00    0.334   235.23
2150.00    0.335   235.89
2151.00    0.336   236.56
2152.00    0.337   237.22
2153.00    0.338   237.87
2154.00    0.339   238.52
2155.00    0.340   239.17
2156.00    0.341   239.81
2157.00    0.342   240.45
2158.00    0.344   241.08
2159.00    0.345   241.71
2160.00    0.346   242.34
2161.00    0.347   242.96
2162.00    0.348   243.58
2163.00    0.349   244.19
2164.00    0.350   244.80
2165.00    0.351   245.41
2166.00    0.352   246.01
2167.00    0.353   246.61
2168.00    0.355   247.20
2169.00    0.356   247.79
2170.00    0.357   248.38
2171.00    0.358   248.97
2172.00    0.359   249.55
2173.00    0.360   250.12
2174.00    0.361   250.70
2175.00    0.362   251.27
2176.00    0.363   251.84
2177.00    0.364   252.40
2178.00    0.365   252.96
2179.00    0.366   253.52
2180.00    0.367   254.07
2181.00    0.368   254.63
2182.00    0.369   255.17
2183.00    0.370   255.72
2184.00    0.371   256.26
2185.00    0.372   256.80
2186.00    0.373   257.34
2187.00    0.374   257.87
2188.00    0.375   258.41
2189.00    0.376   258.94
2190.00    0.377   259.46
2191.00    0.378   259.99
2192.00    0.379   260.51
2193.00    0.380   261.02
2194.00    0.381   261.54
2195.00    0.381   262.05
2196.00    0.382   262.57
2197.00    0.383   263.08
2198.00    0.384   263.58
2199.00    0.385   264.09
2200.00    0.386   264.59
2201.00    0.386   265.09
2202.00    0.387   265.59
2203.00    0.388   266.08
2204.00    0.389   266.58
2205.00    0.390   267.07
2206.00    0.390   267.56
2207.00    0.391   268.05
2208.00    0.392   268.54
2209.00    0.393   269.02
2210.00    0.393   269.50
2211.00    0.394   269.99
2212.00    0.395   270.47
2213.00    0.395   270.94
2214.00    0.396   271.42
2215.00    0.397   271.90
2216.00    0.397   272.37
2217.00    0.398   272.84
2218.00    0.398   273.31
2219.00    0.399   273.78
2220.00    0.399   274.25
2221.00    0.400   274.72
2222.00    0.401   275.18
2223.00    0.401   275.65
2224.00    0.402   276.11
2225.00    0.402   276.57
2226.00    0.402   277.03
2227.00    0.403   277.49
2228.00    0.403   277.95
2229.00    0.404   278.41
2230.00    0.404   278.87
2231.00    0.405   279.32
2232.00    0.405   279.78
2233.00    0.405   280.23
2234.00    0.406   280.69
2235.00    0.406   281.14
2236.00    0.406   281.59
2237.00    0.407   282.04
2238.00    0.407   282.49
2239.00    0.407   282.94
2240.00    0.407   283.39
2241.00    0.408   283.84
2242.00    0.408   284.29
2243.00    0.408   284.74
2244.00    0.408   285.19
2245.00    0.408   285.64
2246.00    0.408   286.08
2247.00    0.409   286.53
2248.00    0.409   286.98
2249.00    0.409   287.42
2250.00    0.409   287.87
2251.00    0.409   288.32
2252.00    0.409   288.76
2253.00    0.409   289.21
2254.00    0.409   289.65
2255.00    0.409   290.10
2256.00    0.409   290.55
2257.00    0.409   290.99
2258.00    0.409   291.44
2259.00    0.409   291.88
2260.00    0.409   292.33
2261.00    0.408   292.78
2262.00    0.408   293.23
2263.00    0.408   293.67
2264.00    0.408   294.12
2265.00    0.408   294.57
2266.00    0.408   295.02
2267.00    0.407   295.47
2268.00    0.407   295.92
2269.00    0.407   296.37
2270.00    0.407   296.82
2271.00    0.406   297.27
2272.00    0.406   297.72
2273.00    0.406   298.17
2274.00    0.405   298.63






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 14:46:58



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