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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:23:40
WDS:
HU201
WDS ID/Discoverer
P:
128.900
Orbital period (years)
a:
0.542
Semi-major axis (arcseconds)
i:
44.1
Inclination (degrees)
Ω:
124.6
Longitude of ascending node (degrees)
T:
1932.970
Epoch of periastron passage (year)
e:
0.688
Eccentricity
ω:
160.0
Longitude of periastron (degrees)
Start-Year:
1961.0
Year
End-Year:
2089.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
005207.81-131350.0
Epoch-2000 right ascension and declination
WDS-ID:
00521-1314
WDS designation
Discoverer Code:
HU201
Discover designation and components
ADS number:
713
Aitken Double Star catalog
HD number:
5041
HD catalog number
Hipparcos number:
4066
Hipparcos catalog number
V1:
10.09
Magnitude of the primary
V2:
10.47
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2008
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.792 125.7
-------------------------
1961.0 0.584 83.0
1962.0 0.599 84.2
1963.0 0.614 85.3
1964.0 0.628 86.5
1965.0 0.642 87.5
1966.0 0.655 88.5
1967.0 0.668 89.5
1968.0 0.681 90.5
1969.0 0.693 91.4
1970.0 0.705 92.2
1971.0 0.716 93.1
1972.0 0.727 93.9
1973.0 0.738 94.7
1974.0 0.748 95.5
1975.0 0.758 96.2
1976.0 0.768 97.0
1977.0 0.777 97.7
1978.0 0.786 98.4
1979.0 0.795 99.1
1980.0 0.803 99.7
1981.0 0.811 100.4
1982.0 0.818 101.0
1983.0 0.825 101.7
1984.0 0.832 102.3
1985.0 0.839 102.9
1986.0 0.845 103.5
1987.0 0.850 104.1
1988.0 0.856 104.7
1989.0 0.861 105.3
1990.0 0.865 105.8
1991.0 0.870 106.4
1992.0 0.873 107.0
1993.0 0.877 107.5
1994.0 0.880 108.1
1995.0 0.883 108.6
1996.0 0.886 109.2
1997.0 0.888 109.7
1998.0 0.890 110.3
1999.0 0.891 110.8
2000.0 0.892 111.3
2001.0 0.893 111.9
2002.0 0.893 112.4
2003.0 0.893 113.0
2004.0 0.893 113.5
2005.0 0.892 114.0
2006.0 0.891 114.6
2007.0 0.889 115.1
2008.0 0.887 115.6
2009.0 0.885 116.2
2010.0 0.882 116.7
2011.0 0.879 117.3
2012.0 0.876 117.8
2013.0 0.872 118.4
2014.0 0.868 119.0
2015.0 0.863 119.5
2016.0 0.858 120.1
2017.0 0.852 120.7
2018.0 0.846 121.3
2019.0 0.840 121.9
2020.0 0.833 122.5
2021.0 0.826 123.1
2022.0 0.818 123.8
2023.0 0.810 124.4
2024.0 0.801 125.1
2025.0 0.792 125.7
2026.0 0.783 126.4
2027.0 0.772 127.1
2028.0 0.762 127.9
2029.0 0.751 128.6
2030.0 0.739 129.4
2031.0 0.727 130.2
2032.0 0.714 131.0
2033.0 0.701 131.9
2034.0 0.687 132.7
2035.0 0.672 133.7
2036.0 0.657 134.6
2037.0 0.641 135.7
2038.0 0.624 136.7
2039.0 0.607 137.8
2040.0 0.589 139.0
2041.0 0.571 140.3
2042.0 0.551 141.7
2043.0 0.531 143.1
2044.0 0.510 144.7
2045.0 0.488 146.4
2046.0 0.466 148.3
2047.0 0.442 150.4
2048.0 0.418 152.7
2049.0 0.393 155.3
2050.0 0.366 158.3
2051.0 0.340 161.7
2052.0 0.312 165.7
2053.0 0.284 170.6
2054.0 0.256 176.5
2055.0 0.228 183.8
2056.0 0.202 193.1
2057.0 0.179 205.0
2058.0 0.161 220.0
2059.0 0.151 237.8
2060.0 0.150 257.0
2061.0 0.156 275.4
2062.0 0.166 292.0
2063.0 0.175 306.8
2064.0 0.182 320.2
2065.0 0.188 332.7
2066.0 0.195 344.3
2067.0 0.203 355.1
2068.0 0.213 5.1
2069.0 0.225 14.0
2070.0 0.238 22.0
2071.0 0.254 29.1
2072.0 0.270 35.3
2073.0 0.288 40.8
2074.0 0.306 45.7
2075.0 0.324 50.0
2076.0 0.343 53.9
2077.0 0.362 57.3
2078.0 0.380 60.4
2079.0 0.399 63.2
2080.0 0.418 65.8
2081.0 0.436 68.2
2082.0 0.454 70.3
2083.0 0.472 72.3
2084.0 0.489 74.2
2085.0 0.506 75.9
2086.0 0.523 77.5
2087.0 0.539 79.0
2088.0 0.555 80.5
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 .
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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