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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:56:29
WDS:
HO44
WDS ID/Discoverer
P:
256.040
Orbital period (years)
a:
0.433
Semi-major axis (arcseconds)
i:
143.6
Inclination (degrees)
Ω:
65.2
Longitude of ascending node (degrees)
T:
1942.680
Epoch of periastron passage (year)
e:
0.984
Eccentricity
ω:
52.7
Longitude of periastron (degrees)
Start-Year:
1897.0
Year
End-Year:
2153.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
101201.24-061210.3
Epoch-2000 right ascension and declination
WDS-ID:
10120-0612
WDS designation
Discoverer Code:
HO44
Discover designation and components
ADS number:
7675
Aitken Double Star catalog
HD number:
88478
HD catalog number
Hipparcos number:
49961
Hipparcos catalog number
V1:
8.53
Magnitude of the primary
V2:
8.93
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2004
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 0.704 201.8
-------------------------
1897.0 0.529 191.7
1898.0 0.523 191.6
1899.0 0.517 191.4
1900.0 0.510 191.3
1901.0 0.504 191.1
1902.0 0.497 191.0
1903.0 0.491 190.8
1904.0 0.484 190.7
1905.0 0.477 190.5
1906.0 0.470 190.3
1907.0 0.463 190.2
1908.0 0.456 190.0
1909.0 0.448 189.8
1910.0 0.441 189.6
1911.0 0.433 189.4
1912.0 0.425 189.2
1913.0 0.417 189.0
1914.0 0.409 188.8
1915.0 0.401 188.5
1916.0 0.392 188.3
1917.0 0.384 188.1
1918.0 0.375 187.8
1919.0 0.365 187.5
1920.0 0.356 187.2
1921.0 0.347 186.9
1922.0 0.337 186.6
1923.0 0.327 186.2
1924.0 0.316 185.9
1925.0 0.306 185.5
1926.0 0.295 185.1
1927.0 0.284 184.6
1928.0 0.272 184.1
1929.0 0.260 183.6
1930.0 0.248 183.0
1931.0 0.235 182.4
1932.0 0.222 181.6
1933.0 0.208 180.8
1934.0 0.193 179.9
1935.0 0.178 178.8
1936.0 0.162 177.5
1937.0 0.146 175.9
1938.0 0.127 173.8
1939.0 0.108 171.1
1940.0 0.087 167.1
1941.0 0.062 160.1
1942.0 0.033 142.1
1943.0 0.023 255.8
1944.0 0.064 232.2
1945.0 0.094 226.0
1946.0 0.119 222.7
1947.0 0.141 220.4
1948.0 0.161 218.7
1949.0 0.179 217.4
1950.0 0.197 216.4
1951.0 0.213 215.5
1952.0 0.228 214.7
1953.0 0.243 214.0
1954.0 0.257 213.4
1955.0 0.270 212.8
1956.0 0.283 212.4
1957.0 0.295 211.9
1958.0 0.307 211.5
1959.0 0.319 211.1
1960.0 0.330 210.7
1961.0 0.341 210.4
1962.0 0.352 210.1
1963.0 0.362 209.8
1964.0 0.372 209.5
1965.0 0.382 209.2
1966.0 0.391 209.0
1967.0 0.401 208.8
1968.0 0.410 208.5
1969.0 0.418 208.3
1970.0 0.427 208.1
1971.0 0.435 207.9
1972.0 0.443 207.7
1973.0 0.452 207.5
1974.0 0.459 207.3
1975.0 0.467 207.1
1976.0 0.475 207.0
1977.0 0.482 206.8
1978.0 0.489 206.6
1979.0 0.496 206.5
1980.0 0.503 206.3
1981.0 0.510 206.2
1982.0 0.516 206.0
1983.0 0.523 205.9
1984.0 0.529 205.8
1985.0 0.535 205.6
1986.0 0.541 205.5
1987.0 0.547 205.4
1988.0 0.553 205.3
1989.0 0.559 205.1
1990.0 0.565 205.0
1991.0 0.570 204.9
1992.0 0.576 204.8
1993.0 0.581 204.7
1994.0 0.586 204.6
1995.0 0.591 204.4
1996.0 0.596 204.3
1997.0 0.601 204.2
1998.0 0.606 204.1
1999.0 0.611 204.0
2000.0 0.615 203.9
2001.0 0.620 203.8
2002.0 0.624 203.7
2003.0 0.629 203.6
2004.0 0.633 203.5
2005.0 0.637 203.4
2006.0 0.641 203.4
2007.0 0.645 203.3
2008.0 0.649 203.2
2009.0 0.653 203.1
2010.0 0.657 203.0
2011.0 0.660 202.9
2012.0 0.664 202.8
2013.0 0.667 202.7
2014.0 0.671 202.7
2015.0 0.674 202.6
2016.0 0.678 202.5
2017.0 0.681 202.4
2018.0 0.684 202.3
2019.0 0.687 202.2
2020.0 0.690 202.2
2021.0 0.693 202.1
2022.0 0.696 202.0
2023.0 0.699 201.9
2024.0 0.701 201.9
2025.0 0.704 201.8
2026.0 0.706 201.7
2027.0 0.709 201.6
2028.0 0.711 201.5
2029.0 0.714 201.5
2030.0 0.716 201.4
2031.0 0.718 201.3
2032.0 0.720 201.3
2033.0 0.723 201.2
2034.0 0.725 201.1
2035.0 0.727 201.0
2036.0 0.729 201.0
2037.0 0.730 200.9
2038.0 0.732 200.8
2039.0 0.734 200.8
2040.0 0.736 200.7
2041.0 0.737 200.6
2042.0 0.739 200.5
2043.0 0.740 200.5
2044.0 0.742 200.4
2045.0 0.743 200.3
2046.0 0.744 200.3
2047.0 0.745 200.2
2048.0 0.747 200.1
2049.0 0.748 200.1
2050.0 0.749 200.0
2051.0 0.750 199.9
2052.0 0.751 199.9
2053.0 0.752 199.8
2054.0 0.752 199.7
2055.0 0.753 199.7
2056.0 0.754 199.6
2057.0 0.754 199.5
2058.0 0.755 199.5
2059.0 0.756 199.4
2060.0 0.756 199.3
2061.0 0.756 199.3
2062.0 0.757 199.2
2063.0 0.757 199.1
2064.0 0.757 199.1
2065.0 0.757 199.0
2066.0 0.758 198.9
2067.0 0.758 198.9
2068.0 0.758 198.8
2069.0 0.758 198.7
2070.0 0.757 198.7
2071.0 0.757 198.6
2072.0 0.757 198.5
2073.0 0.757 198.5
2074.0 0.756 198.4
2075.0 0.756 198.3
2076.0 0.756 198.3
2077.0 0.755 198.2
2078.0 0.754 198.1
2079.0 0.754 198.1
2080.0 0.753 198.0
2081.0 0.752 197.9
2082.0 0.752 197.9
2083.0 0.751 197.8
2084.0 0.750 197.7
2085.0 0.749 197.7
2086.0 0.748 197.6
2087.0 0.747 197.5
2088.0 0.746 197.5
2089.0 0.744 197.4
2090.0 0.743 197.3
2091.0 0.742 197.3
2092.0 0.740 197.2
2093.0 0.739 197.1
2094.0 0.737 197.1
2095.0 0.736 197.0
2096.0 0.734 196.9
2097.0 0.733 196.8
2098.0 0.731 196.8
2099.0 0.729 196.7
2100.0 0.727 196.6
2101.0 0.725 196.6
2102.0 0.723 196.5
2103.0 0.721 196.4
2104.0 0.719 196.3
2105.0 0.717 196.3
2106.0 0.715 196.2
2107.0 0.712 196.1
2108.0 0.710 196.0
2109.0 0.708 196.0
2110.0 0.705 195.9
2111.0 0.702 195.8
2112.0 0.700 195.7
2113.0 0.697 195.7
2114.0 0.694 195.6
2115.0 0.692 195.5
2116.0 0.689 195.4
2117.0 0.686 195.4
2118.0 0.683 195.3
2119.0 0.680 195.2
2120.0 0.677 195.1
2121.0 0.673 195.0
2122.0 0.670 194.9
2123.0 0.667 194.9
2124.0 0.663 194.8
2125.0 0.660 194.7
2126.0 0.656 194.6
2127.0 0.653 194.5
2128.0 0.649 194.4
2129.0 0.645 194.3
2130.0 0.641 194.2
2131.0 0.637 194.1
2132.0 0.633 194.1
2133.0 0.629 194.0
2134.0 0.625 193.9
2135.0 0.621 193.8
2136.0 0.616 193.7
2137.0 0.612 193.6
2138.0 0.607 193.5
2139.0 0.603 193.4
2140.0 0.598 193.3
2141.0 0.593 193.1
2142.0 0.589 193.0
2143.0 0.584 192.9
2144.0 0.579 192.8
2145.0 0.573 192.7
2146.0 0.568 192.6
2147.0 0.563 192.5
2148.0 0.558 192.3
2149.0 0.552 192.2
2150.0 0.546 192.1
2151.0 0.541 192.0
2152.0 0.535 191.8
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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