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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:08:17

Orbital Elements for HWE71
WDS: HWE71 WDS ID/Discoverer
P: 248.800 Orbital period (years)
a: 1.004 Semi-major axis (arcseconds)
i: 99.6 Inclination (degrees)
Ω: 276.3 Longitude of ascending node (degrees)
T: 2008.480 Epoch of periastron passage (year)
e: 0.72 Eccentricity
ω: 162.0 Longitude of periastron (degrees)
Start-Year: 1901.0 Year
End-Year: 2149.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HWE71
Position: 115425.81-374456.1 Epoch-2000 right ascension and declination
WDS-ID: 11544-3745 WDS designation
Discoverer Code: HWE71 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 103437 HD catalog number
Hipparcos number: 58057 Hipparcos catalog number
V1: 6.75 Magnitude of the primary
V2: 8.60 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HWE71



WDS 6th Orbit including measures of HWE71

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


Ephemeris of HWE71
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.107    357.5
-------------------------
1901.0     1.667    278.4
1902.0     1.666    278.3
1903.0     1.666    278.2
1904.0     1.665    278.2
1905.0     1.663    278.1
1906.0     1.662    278.1
1907.0     1.660    278.0
1908.0     1.658    277.9
1909.0     1.656    277.9
1910.0     1.654    277.8
1911.0     1.651    277.8
1912.0     1.649    277.7
1913.0     1.646    277.6
1914.0     1.642    277.6
1915.0     1.639    277.5
1916.0     1.635    277.4
1917.0     1.631    277.4
1918.0     1.627    277.3
1919.0     1.623    277.3
1920.0     1.618    277.2
1921.0     1.613    277.1
1922.0     1.608    277.1
1923.0     1.603    277.0
1924.0     1.597    276.9
1925.0     1.591    276.9
1926.0     1.585    276.8
1927.0     1.578    276.7
1928.0     1.572    276.7
1929.0     1.565    276.6
1930.0     1.558    276.5
1931.0     1.550    276.4
1932.0     1.543    276.4
1933.0     1.535    276.3
1934.0     1.526    276.2
1935.0     1.518    276.2
1936.0     1.509    276.1
1937.0     1.500    276.0
1938.0     1.491    275.9
1939.0     1.481    275.9
1940.0     1.471    275.8
1941.0     1.461    275.7
1942.0     1.450    275.6
1943.0     1.440    275.5
1944.0     1.428    275.5
1945.0     1.417    275.4
1946.0     1.405    275.3
1947.0     1.393    275.2
1948.0     1.381    275.1
1949.0     1.368    275.0
1950.0     1.355    274.9
1951.0     1.342    274.8
1952.0     1.328    274.8
1953.0     1.314    274.7
1954.0     1.299    274.6
1955.0     1.284    274.5
1956.0     1.269    274.4
1957.0     1.254    274.2
1958.0     1.238    274.1
1959.0     1.222    274.0
1960.0     1.205    273.9
1961.0     1.188    273.8
1962.0     1.170    273.7
1963.0     1.152    273.5
1964.0     1.134    273.4
1965.0     1.115    273.3
1966.0     1.096    273.1
1967.0     1.076    273.0
1968.0     1.056    272.9
1969.0     1.035    272.7
1970.0     1.014    272.5
1971.0     0.993    272.4
1972.0     0.970    272.2
1973.0     0.948    272.0
1974.0     0.925    271.8
1975.0     0.901    271.6
1976.0     0.876    271.4
1977.0     0.851    271.2
1978.0     0.826    270.9
1979.0     0.800    270.7
1980.0     0.773    270.4
1981.0     0.746    270.1
1982.0     0.718    269.8
1983.0     0.689    269.5
1984.0     0.659    269.1
1985.0     0.629    268.7
1986.0     0.598    268.2
1987.0     0.566    267.7
1988.0     0.533    267.2
1989.0     0.500    266.5
1990.0     0.466    265.8
1991.0     0.431    265.0
1992.0     0.395    264.0
1993.0     0.358    262.8
1994.0     0.320    261.3
1995.0     0.282    259.4
1996.0     0.243    257.0
1997.0     0.203    253.6
1998.0     0.164    248.5
1999.0     0.126    240.3
2000.0     0.091    225.4
2001.0     0.068    197.2
2002.0     0.070    159.5
2003.0     0.095    133.6
2004.0     0.130    119.8
2005.0     0.166    112.0
2006.0     0.201    107.0
2007.0     0.232    103.4
2008.0     0.258    100.6
2009.0     0.277     98.2
2010.0     0.288     96.1
2011.0     0.292     94.1
2012.0     0.289     92.1
2013.0     0.280     90.0
2014.0     0.267     87.8
2015.0     0.251     85.3
2016.0     0.232     82.4
2017.0     0.212     78.9
2018.0     0.191     74.8
2019.0     0.169     69.5
2020.0     0.149     62.8
2021.0     0.130     54.1
2022.0     0.115     42.8
2023.0     0.106     28.8
2024.0     0.103     13.0
2025.0     0.107    357.5
2026.0     0.119    344.2
2027.0     0.135    333.6
2028.0     0.155    325.5
2029.0     0.176    319.3
2030.0     0.199    314.5
2031.0     0.223    310.7
2032.0     0.248    307.6
2033.0     0.272    305.1
2034.0     0.297    303.0
2035.0     0.322    301.3
2036.0     0.346    299.7
2037.0     0.371    298.4
2038.0     0.395    297.3
2039.0     0.419    296.3
2040.0     0.443    295.3
2041.0     0.467    294.5
2042.0     0.491    293.8
2043.0     0.514    293.1
2044.0     0.537    292.5
2045.0     0.560    292.0
2046.0     0.583    291.4
2047.0     0.605    291.0
2048.0     0.627    290.5
2049.0     0.649    290.1
2050.0     0.670    289.7
2051.0     0.691    289.3
2052.0     0.712    289.0
2053.0     0.733    288.7
2054.0     0.754    288.4
2055.0     0.774    288.1
2056.0     0.794    287.8
2057.0     0.813    287.5
2058.0     0.833    287.3
2059.0     0.852    287.1
2060.0     0.871    286.8
2061.0     0.889    286.6
2062.0     0.908    286.4
2063.0     0.926    286.2
2064.0     0.944    286.0
2065.0     0.961    285.8
2066.0     0.979    285.6
2067.0     0.996    285.5
2068.0     1.013    285.3
2069.0     1.030    285.1
2070.0     1.046    285.0
2071.0     1.062    284.8
2072.0     1.078    284.7
2073.0     1.094    284.5
2074.0     1.109    284.4
2075.0     1.125    284.3
2076.0     1.140    284.1
2077.0     1.154    284.0
2078.0     1.169    283.9
2079.0     1.183    283.8
2080.0     1.198    283.6
2081.0     1.211    283.5
2082.0     1.225    283.4
2083.0     1.239    283.3
2084.0     1.252    283.2
2085.0     1.265    283.1
2086.0     1.278    283.0
2087.0     1.290    282.9
2088.0     1.303    282.8
2089.0     1.315    282.7
2090.0     1.327    282.6
2091.0     1.338    282.5
2092.0     1.350    282.4
2093.0     1.361    282.3
2094.0     1.372    282.2
2095.0     1.383    282.1
2096.0     1.394    282.0
2097.0     1.404    282.0
2098.0     1.415    281.9
2099.0     1.425    281.8
2100.0     1.434    281.7
2101.0     1.444    281.6
2102.0     1.454    281.5
2103.0     1.463    281.5
2104.0     1.472    281.4
2105.0     1.481    281.3
2106.0     1.489    281.2
2107.0     1.498    281.2
2108.0     1.506    281.1
2109.0     1.514    281.0
2110.0     1.522    280.9
2111.0     1.529    280.9
2112.0     1.537    280.8
2113.0     1.544    280.7
2114.0     1.551    280.6
2115.0     1.558    280.6
2116.0     1.564    280.5
2117.0     1.570    280.4
2118.0     1.577    280.4
2119.0     1.583    280.3
2120.0     1.588    280.2
2121.0     1.594    280.2
2122.0     1.599    280.1
2123.0     1.605    280.0
2124.0     1.610    280.0
2125.0     1.614    279.9
2126.0     1.619    279.8
2127.0     1.623    279.8
2128.0     1.627    279.7
2129.0     1.631    279.6
2130.0     1.635    279.6
2131.0     1.639    279.5
2132.0     1.642    279.5
2133.0     1.645    279.4
2134.0     1.648    279.3
2135.0     1.651    279.3
2136.0     1.653    279.2
2137.0     1.656    279.1
2138.0     1.658    279.1
2139.0     1.660    279.0
2140.0     1.661    279.0
2141.0     1.663    278.9
2142.0     1.664    278.8
2143.0     1.665    278.8
2144.0     1.666    278.7
2145.0     1.667    278.7
2146.0     1.667    278.6
2147.0     1.668    278.5
2148.0     1.668    278.5






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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