Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:20:18

Orbital Elements for HWE28AB
WDS: HWE28AB WDS ID/Discoverer
P: 362.998 Orbital period (years)
a: 1.4886 Semi-major axis (arcseconds)
i: 74.536 Inclination (degrees)
Ω: 113.094 Longitude of ascending node (degrees)
T: 1958.521 Epoch of periastron passage (year)
e: 0.76736 Eccentricity
ω: 89.984 Longitude of periastron (degrees)
Start-Year: 1844.0 Year
End-Year: 2206.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HWE28AB
Position: 135332.75-353951.2 Epoch-2000 right ascension and declination
WDS-ID: 13535-3540 WDS designation
Discoverer Code: HWE28AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 120987 HD catalog number
Hipparcos number: 67819 Hipparcos catalog number
V1: 6.27 Magnitude of the primary
V2: 6.38 Magnitude of the secondary
Equinox: Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HWE28AB



WDS 6th Orbit including measures of HWE28AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of HWE28AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.004    318.2
-------------------------
1844.0     0.857     67.4
1845.0     0.861     67.9
1846.0     0.864     68.4
1847.0     0.868     68.9
1848.0     0.872     69.4
1849.0     0.875     69.9
1850.0     0.879     70.3
1851.0     0.883     70.8
1852.0     0.887     71.3
1853.0     0.890     71.8
1854.0     0.894     72.3
1855.0     0.897     72.7
1856.0     0.901     73.2
1857.0     0.905     73.7
1858.0     0.908     74.1
1859.0     0.912     74.6
1860.0     0.915     75.0
1861.0     0.919     75.5
1862.0     0.922     75.9
1863.0     0.926     76.3
1864.0     0.929     76.8
1865.0     0.933     77.2
1866.0     0.936     77.6
1867.0     0.940     78.1
1868.0     0.943     78.5
1869.0     0.946     78.9
1870.0     0.949     79.3
1871.0     0.952     79.7
1872.0     0.956     80.2
1873.0     0.959     80.6
1874.0     0.962     81.0
1875.0     0.965     81.4
1876.0     0.967     81.8
1877.0     0.970     82.2
1878.0     0.973     82.6
1879.0     0.976     83.0
1880.0     0.978     83.4
1881.0     0.981     83.8
1882.0     0.983     84.2
1883.0     0.986     84.5
1884.0     0.988     84.9
1885.0     0.990     85.3
1886.0     0.993     85.7
1887.0     0.995     86.1
1888.0     0.996     86.5
1889.0     0.998     86.8
1890.0     1.000     87.2
1891.0     1.002     87.6
1892.0     1.003     88.0
1893.0     1.005     88.3
1894.0     1.006     88.7
1895.0     1.007     89.1
1896.0     1.008     89.4
1897.0     1.009     89.8
1898.0     1.010     90.2
1899.0     1.010     90.5
1900.0     1.011     90.9
1901.0     1.011     91.3
1902.0     1.011     91.7
1903.0     1.011     92.0
1904.0     1.011     92.4
1905.0     1.011     92.8
1906.0     1.010     93.1
1907.0     1.009     93.5
1908.0     1.008     93.9
1909.0     1.007     94.2
1910.0     1.005     94.6
1911.0     1.004     95.0
1912.0     1.002     95.3
1913.0     1.000     95.7
1914.0     0.997     96.1
1915.0     0.994     96.5
1916.0     0.991     96.9
1917.0     0.988     97.2
1918.0     0.984     97.6
1919.0     0.980     98.0
1920.0     0.976     98.4
1921.0     0.971     98.8
1922.0     0.966     99.2
1923.0     0.961     99.6
1924.0     0.955    100.0
1925.0     0.949    100.4
1926.0     0.942    100.9
1927.0     0.934    101.3
1928.0     0.926    101.7
1929.0     0.918    102.2
1930.0     0.909    102.6
1931.0     0.899    103.1
1932.0     0.889    103.5
1933.0     0.878    104.0
1934.0     0.866    104.5
1935.0     0.853    105.0
1936.0     0.839    105.6
1937.0     0.825    106.1
1938.0     0.809    106.7
1939.0     0.792    107.2
1940.0     0.774    107.9
1941.0     0.755    108.5
1942.0     0.734    109.2
1943.0     0.712    109.9
1944.0     0.688    110.7
1945.0     0.662    111.5
1946.0     0.634    112.4
1947.0     0.604    113.4
1948.0     0.571    114.4
1949.0     0.535    115.7
1950.0     0.497    117.1
1951.0     0.455    118.7
1952.0     0.410    120.8
1953.0     0.360    123.3
1954.0     0.308    126.7
1955.0     0.252    131.5
1956.0     0.195    139.2
1957.0     0.140    153.1
1958.0     0.099    181.1
1959.0     0.098    223.3
1960.0     0.138    252.2
1961.0     0.192    266.6
1962.0     0.249    274.4
1963.0     0.305    279.3
1964.0     0.358    282.7
1965.0     0.407    285.3
1966.0     0.453    287.4
1967.0     0.495    289.0
1968.0     0.534    290.4
1969.0     0.569    291.7
1970.0     0.602    292.8
1971.0     0.633    293.8
1972.0     0.661    294.7
1973.0     0.687    295.5
1974.0     0.711    296.3
1975.0     0.733    297.0
1976.0     0.754    297.7
1977.0     0.774    298.3
1978.0     0.792    298.9
1979.0     0.808    299.5
1980.0     0.824    300.1
1981.0     0.839    300.6
1982.0     0.853    301.1
1983.0     0.865    301.6
1984.0     0.877    302.1
1985.0     0.889    302.6
1986.0     0.899    303.1
1987.0     0.909    303.5
1988.0     0.918    304.0
1989.0     0.926    304.4
1990.0     0.934    304.9
1991.0     0.942    305.3
1992.0     0.949    305.7
1993.0     0.955    306.1
1994.0     0.961    306.5
1995.0     0.967    306.9
1996.0     0.972    307.3
1997.0     0.976    307.7
1998.0     0.981    308.1
1999.0     0.985    308.5
2000.0     0.988    308.9
2001.0     0.992    309.3
2002.0     0.995    309.7
2003.0     0.998    310.1
2004.0     1.000    310.4
2005.0     1.002    310.8
2006.0     1.004    311.2
2007.0     1.006    311.5
2008.0     1.007    311.9
2009.0     1.009    312.3
2010.0     1.010    312.7
2011.0     1.011    313.0
2012.0     1.011    313.4
2013.0     1.012    313.8
2014.0     1.012    314.1
2015.0     1.012    314.5
2016.0     1.012    314.9
2017.0     1.012    315.2
2018.0     1.011    315.6
2019.0     1.010    316.0
2020.0     1.010    316.3
2021.0     1.009    316.7
2022.0     1.008    317.1
2023.0     1.007    317.4
2024.0     1.005    317.8
2025.0     1.004    318.2
2026.0     1.003    318.6
2027.0     1.001    318.9
2028.0     0.999    319.3
2029.0     0.997    319.7
2030.0     0.995    320.1
2031.0     0.993    320.4
2032.0     0.991    320.8
2033.0     0.989    321.2
2034.0     0.987    321.6
2035.0     0.984    322.0
2036.0     0.982    322.4
2037.0     0.979    322.8
2038.0     0.977    323.2
2039.0     0.974    323.5
2040.0     0.971    323.9
2041.0     0.968    324.3
2042.0     0.966    324.7
2043.0     0.963    325.2
2044.0     0.960    325.6
2045.0     0.957    326.0
2046.0     0.953    326.4
2047.0     0.950    326.8
2048.0     0.947    327.2
2049.0     0.944    327.6
2050.0     0.941    328.1
2051.0     0.937    328.5
2052.0     0.934    328.9
2053.0     0.930    329.3
2054.0     0.927    329.8
2055.0     0.924    330.2
2056.0     0.920    330.7
2057.0     0.916    331.1
2058.0     0.913    331.6
2059.0     0.909    332.0
2060.0     0.906    332.5
2061.0     0.902    332.9
2062.0     0.899    333.4
2063.0     0.895    333.9
2064.0     0.891    334.3
2065.0     0.888    334.8
2066.0     0.884    335.3
2067.0     0.880    335.8
2068.0     0.876    336.2
2069.0     0.873    336.7
2070.0     0.869    337.2
2071.0     0.865    337.7
2072.0     0.862    338.2
2073.0     0.858    338.7
2074.0     0.854    339.3
2075.0     0.851    339.8
2076.0     0.847    340.3
2077.0     0.843    340.8
2078.0     0.840    341.4
2079.0     0.836    341.9
2080.0     0.832    342.4
2081.0     0.829    343.0
2082.0     0.825    343.5
2083.0     0.822    344.1
2084.0     0.818    344.6
2085.0     0.814    345.2
2086.0     0.811    345.8
2087.0     0.807    346.3
2088.0     0.804    346.9
2089.0     0.801    347.5
2090.0     0.797    348.1
2091.0     0.794    348.7
2092.0     0.791    349.3
2093.0     0.787    349.9
2094.0     0.784    350.5
2095.0     0.781    351.1
2096.0     0.778    351.7
2097.0     0.775    352.4
2098.0     0.772    353.0
2099.0     0.769    353.6
2100.0     0.766    354.3
2101.0     0.763    354.9
2102.0     0.760    355.5
2103.0     0.757    356.2
2104.0     0.754    356.9
2105.0     0.752    357.5
2106.0     0.749    358.2
2107.0     0.746    358.9
2108.0     0.744    359.5
2109.0     0.741      0.2
2110.0     0.739      0.9
2111.0     0.737      1.6
2112.0     0.734      2.3
2113.0     0.732      3.0
2114.0     0.730      3.7
2115.0     0.728      4.4
2116.0     0.726      5.1
2117.0     0.724      5.8
2118.0     0.722      6.5
2119.0     0.720      7.3
2120.0     0.719      8.0
2121.0     0.717      8.7
2122.0     0.715      9.5
2123.0     0.714     10.2
2124.0     0.713     10.9
2125.0     0.711     11.7
2126.0     0.710     12.4
2127.0     0.709     13.2
2128.0     0.708     13.9
2129.0     0.707     14.7
2130.0     0.706     15.4
2131.0     0.705     16.2
2132.0     0.704     16.9
2133.0     0.704     17.7
2134.0     0.703     18.4
2135.0     0.703     19.2
2136.0     0.702     20.0
2137.0     0.702     20.7
2138.0     0.702     21.5
2139.0     0.702     22.3
2140.0     0.701     23.0
2141.0     0.702     23.8
2142.0     0.702     24.5
2143.0     0.702     25.3
2144.0     0.702     26.1
2145.0     0.703     26.8
2146.0     0.703     27.6
2147.0     0.704     28.4
2148.0     0.704     29.1
2149.0     0.705     29.9
2150.0     0.706     30.6
2151.0     0.707     31.4
2152.0     0.708     32.1
2153.0     0.709     32.9
2154.0     0.710     33.6
2155.0     0.711     34.4
2156.0     0.712     35.1
2157.0     0.714     35.9
2158.0     0.715     36.6
2159.0     0.717     37.3
2160.0     0.718     38.1
2161.0     0.720     38.8
2162.0     0.722     39.5
2163.0     0.723     40.2
2164.0     0.725     40.9
2165.0     0.727     41.6
2166.0     0.729     42.4
2167.0     0.732     43.1
2168.0     0.734     43.8
2169.0     0.736     44.5
2170.0     0.738     45.1
2171.0     0.741     45.8
2172.0     0.743     46.5
2173.0     0.746     47.2
2174.0     0.748     47.9
2175.0     0.751     48.5
2176.0     0.754     49.2
2177.0     0.756     49.9
2178.0     0.759     50.5
2179.0     0.762     51.2
2180.0     0.765     51.8
2181.0     0.768     52.4
2182.0     0.771     53.1
2183.0     0.774     53.7
2184.0     0.777     54.3
2185.0     0.780     55.0
2186.0     0.783     55.6
2187.0     0.786     56.2
2188.0     0.790     56.8
2189.0     0.793     57.4
2190.0     0.796     58.0
2191.0     0.800     58.6
2192.0     0.803     59.2
2193.0     0.807     59.7
2194.0     0.810     60.3
2195.0     0.814     60.9
2196.0     0.817     61.4
2197.0     0.821     62.0
2198.0     0.824     62.6
2199.0     0.828     63.1
2200.0     0.831     63.7
2201.0     0.835     64.2
2202.0     0.839     64.7
2203.0     0.842     65.3
2204.0     0.846     65.8
2205.0     0.850     66.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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