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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:12:47
WDS:
HU821
WDS ID/Discoverer
P:
140.980
Orbital period (years)
a:
0.653
Semi-major axis (arcseconds)
i:
40.5
Inclination (degrees)
Ω:
53.9
Longitude of ascending node (degrees)
T:
1971.260
Epoch of periastron passage (year)
e:
0.616
Eccentricity
ω:
312.9
Longitude of periastron (degrees)
Start-Year:
1955.0
Year
End-Year:
2095.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
051401.68+512551.8
Epoch-2000 right ascension and declination
WDS-ID:
05140+5126
WDS designation
Discoverer Code:
HU821
Discover designation and components
ADS number:
3780
Aitken Double Star catalog
HD number:
33580
HD catalog number
Hipparcos number:
24397
Hipparcos catalog number
V1:
7.43
Magnitude of the primary
V2:
9.94
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2012
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.835 180.7
-------------------------
1955.0 0.544 247.0
1956.0 0.520 249.4
1957.0 0.495 251.9
1958.0 0.469 254.7
1959.0 0.442 257.8
1960.0 0.415 261.4
1961.0 0.386 265.5
1962.0 0.357 270.2
1963.0 0.328 275.7
1964.0 0.299 282.4
1965.0 0.272 290.4
1966.0 0.247 300.2
1967.0 0.226 311.9
1968.0 0.211 325.7
1969.0 0.205 340.9
1970.0 0.207 356.5
1971.0 0.217 11.1
1972.0 0.232 24.0
1973.0 0.250 35.3
1974.0 0.268 45.1
1975.0 0.285 53.6
1976.0 0.301 61.2
1977.0 0.316 68.1
1978.0 0.330 74.3
1979.0 0.343 80.1
1980.0 0.355 85.5
1981.0 0.367 90.5
1982.0 0.378 95.2
1983.0 0.390 99.6
1984.0 0.401 103.8
1985.0 0.412 107.7
1986.0 0.424 111.5
1987.0 0.435 115.0
1988.0 0.446 118.4
1989.0 0.458 121.6
1990.0 0.470 124.6
1991.0 0.481 127.5
1992.0 0.493 130.2
1993.0 0.505 132.9
1994.0 0.517 135.4
1995.0 0.528 137.7
1996.0 0.540 140.0
1997.0 0.552 142.2
1998.0 0.564 144.3
1999.0 0.576 146.3
2000.0 0.587 148.2
2001.0 0.599 150.1
2002.0 0.610 151.9
2003.0 0.622 153.6
2004.0 0.633 155.3
2005.0 0.645 156.9
2006.0 0.656 158.4
2007.0 0.667 159.9
2008.0 0.677 161.3
2009.0 0.688 162.7
2010.0 0.699 164.1
2011.0 0.709 165.4
2012.0 0.719 166.7
2013.0 0.729 167.9
2014.0 0.739 169.1
2015.0 0.749 170.3
2016.0 0.759 171.5
2017.0 0.768 172.6
2018.0 0.777 173.7
2019.0 0.786 174.7
2020.0 0.795 175.8
2021.0 0.803 176.8
2022.0 0.812 177.8
2023.0 0.820 178.8
2024.0 0.828 179.8
2025.0 0.835 180.7
2026.0 0.843 181.6
2027.0 0.850 182.5
2028.0 0.857 183.4
2029.0 0.864 184.3
2030.0 0.870 185.2
2031.0 0.876 186.0
2032.0 0.883 186.9
2033.0 0.888 187.7
2034.0 0.894 188.5
2035.0 0.899 189.3
2036.0 0.904 190.1
2037.0 0.909 190.9
2038.0 0.914 191.7
2039.0 0.918 192.5
2040.0 0.922 193.3
2041.0 0.926 194.0
2042.0 0.929 194.8
2043.0 0.932 195.5
2044.0 0.935 196.3
2045.0 0.938 197.0
2046.0 0.940 197.8
2047.0 0.942 198.5
2048.0 0.944 199.3
2049.0 0.945 200.0
2050.0 0.946 200.7
2051.0 0.947 201.4
2052.0 0.948 202.2
2053.0 0.948 202.9
2054.0 0.948 203.6
2055.0 0.948 204.3
2056.0 0.947 205.1
2057.0 0.946 205.8
2058.0 0.944 206.5
2059.0 0.943 207.3
2060.0 0.940 208.0
2061.0 0.938 208.7
2062.0 0.935 209.5
2063.0 0.932 210.2
2064.0 0.928 211.0
2065.0 0.924 211.7
2066.0 0.920 212.5
2067.0 0.915 213.3
2068.0 0.910 214.1
2069.0 0.904 214.9
2070.0 0.898 215.7
2071.0 0.892 216.5
2072.0 0.885 217.3
2073.0 0.877 218.1
2074.0 0.870 219.0
2075.0 0.861 219.9
2076.0 0.852 220.8
2077.0 0.843 221.7
2078.0 0.833 222.6
2079.0 0.823 223.5
2080.0 0.812 224.5
2081.0 0.800 225.5
2082.0 0.788 226.6
2083.0 0.775 227.6
2084.0 0.762 228.7
2085.0 0.748 229.9
2086.0 0.733 231.1
2087.0 0.718 232.3
2088.0 0.702 233.6
2089.0 0.685 235.0
2090.0 0.667 236.4
2091.0 0.649 237.9
2092.0 0.629 239.5
2093.0 0.609 241.2
2094.0 0.588 243.0
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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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