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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:29:24
WDS:
STT295
WDS ID/Discoverer
P:
233.000
Orbital period (years)
a:
0.487
Semi-major axis (arcseconds)
i:
41.7
Inclination (degrees)
Ω:
133.8
Longitude of ascending node (degrees)
T:
2021.000
Epoch of periastron passage (year)
e:
0.94
Eccentricity
ω:
173.3
Longitude of periastron (degrees)
Start-Year:
1909.0
Year
End-Year:
2141.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
151503.25+364948.9
Epoch-2000 right ascension and declination
WDS-ID:
15151+3650
WDS designation
Discoverer Code:
STT295
Discover designation and components
ADS number:
9554
Aitken Double Star catalog
HD number:
135657
HD catalog number
Hipparcos number:
74643
Hipparcos catalog number
V1:
8.80
Magnitude of the primary
V2:
9.45
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2009
Date of last observation
Orbit grade:
4
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 0.126 86.8
-------------------------
1909.0 0.942 129.3
1910.0 0.941 129.4
1911.0 0.941 129.5
1912.0 0.940 129.6
1913.0 0.940 129.7
1914.0 0.939 129.8
1915.0 0.938 129.9
1916.0 0.937 130.0
1917.0 0.936 130.1
1918.0 0.935 130.2
1919.0 0.934 130.3
1920.0 0.933 130.4
1921.0 0.931 130.5
1922.0 0.930 130.6
1923.0 0.929 130.8
1924.0 0.927 130.9
1925.0 0.925 131.0
1926.0 0.923 131.1
1927.0 0.921 131.2
1928.0 0.919 131.3
1929.0 0.917 131.4
1930.0 0.915 131.5
1931.0 0.913 131.6
1932.0 0.910 131.7
1933.0 0.908 131.9
1934.0 0.905 132.0
1935.0 0.903 132.1
1936.0 0.900 132.2
1937.0 0.897 132.3
1938.0 0.894 132.4
1939.0 0.891 132.5
1940.0 0.888 132.7
1941.0 0.885 132.8
1942.0 0.881 132.9
1943.0 0.878 133.0
1944.0 0.874 133.1
1945.0 0.870 133.3
1946.0 0.866 133.4
1947.0 0.863 133.5
1948.0 0.859 133.6
1949.0 0.854 133.8
1950.0 0.850 133.9
1951.0 0.846 134.0
1952.0 0.841 134.2
1953.0 0.837 134.3
1954.0 0.832 134.4
1955.0 0.827 134.6
1956.0 0.822 134.7
1957.0 0.817 134.8
1958.0 0.812 135.0
1959.0 0.807 135.1
1960.0 0.801 135.3
1961.0 0.796 135.4
1962.0 0.790 135.6
1963.0 0.784 135.7
1964.0 0.778 135.9
1965.0 0.772 136.0
1966.0 0.766 136.2
1967.0 0.760 136.3
1968.0 0.753 136.5
1969.0 0.747 136.7
1970.0 0.740 136.8
1971.0 0.733 137.0
1972.0 0.726 137.2
1973.0 0.719 137.4
1974.0 0.711 137.5
1975.0 0.704 137.7
1976.0 0.696 137.9
1977.0 0.688 138.1
1978.0 0.680 138.3
1979.0 0.672 138.5
1980.0 0.664 138.7
1981.0 0.655 138.9
1982.0 0.646 139.2
1983.0 0.637 139.4
1984.0 0.628 139.6
1985.0 0.619 139.9
1986.0 0.609 140.1
1987.0 0.600 140.4
1988.0 0.590 140.6
1989.0 0.579 140.9
1990.0 0.569 141.2
1991.0 0.558 141.5
1992.0 0.548 141.8
1993.0 0.536 142.1
1994.0 0.525 142.4
1995.0 0.513 142.8
1996.0 0.501 143.1
1997.0 0.489 143.5
1998.0 0.476 143.9
1999.0 0.463 144.4
2000.0 0.450 144.8
2001.0 0.436 145.3
2002.0 0.422 145.8
2003.0 0.408 146.3
2004.0 0.393 146.9
2005.0 0.378 147.5
2006.0 0.362 148.2
2007.0 0.345 149.0
2008.0 0.328 149.8
2009.0 0.311 150.7
2010.0 0.292 151.7
2011.0 0.273 152.9
2012.0 0.253 154.2
2013.0 0.232 155.8
2014.0 0.210 157.7
2015.0 0.187 160.1
2016.0 0.162 163.2
2017.0 0.135 167.5
2018.0 0.106 174.0
2019.0 0.074 185.7
2020.0 0.042 215.8
2021.0 0.029 308.8
2022.0 0.042 33.9
2023.0 0.070 66.0
2024.0 0.099 79.4
2025.0 0.126 86.8
2026.0 0.152 91.7
2027.0 0.176 95.2
2028.0 0.198 97.9
2029.0 0.219 100.0
2030.0 0.240 101.8
2031.0 0.259 103.3
2032.0 0.278 104.6
2033.0 0.296 105.7
2034.0 0.313 106.7
2035.0 0.330 107.6
2036.0 0.346 108.4
2037.0 0.362 109.2
2038.0 0.377 109.9
2039.0 0.392 110.5
2040.0 0.406 111.1
2041.0 0.420 111.6
2042.0 0.434 112.2
2043.0 0.447 112.6
2044.0 0.460 113.1
2045.0 0.472 113.5
2046.0 0.485 113.9
2047.0 0.497 114.3
2048.0 0.508 114.7
2049.0 0.520 115.0
2050.0 0.531 115.4
2051.0 0.542 115.7
2052.0 0.553 116.0
2053.0 0.563 116.3
2054.0 0.573 116.6
2055.0 0.583 116.9
2056.0 0.593 117.1
2057.0 0.603 117.4
2058.0 0.612 117.7
2059.0 0.621 117.9
2060.0 0.631 118.1
2061.0 0.639 118.4
2062.0 0.648 118.6
2063.0 0.657 118.8
2064.0 0.665 119.0
2065.0 0.673 119.2
2066.0 0.681 119.4
2067.0 0.689 119.6
2068.0 0.696 119.8
2069.0 0.704 120.0
2070.0 0.711 120.2
2071.0 0.719 120.4
2072.0 0.726 120.6
2073.0 0.733 120.8
2074.0 0.739 120.9
2075.0 0.746 121.1
2076.0 0.753 121.3
2077.0 0.759 121.4
2078.0 0.765 121.6
2079.0 0.771 121.7
2080.0 0.777 121.9
2081.0 0.783 122.1
2082.0 0.789 122.2
2083.0 0.795 122.4
2084.0 0.800 122.5
2085.0 0.805 122.6
2086.0 0.811 122.8
2087.0 0.816 122.9
2088.0 0.821 123.1
2089.0 0.826 123.2
2090.0 0.831 123.3
2091.0 0.835 123.5
2092.0 0.840 123.6
2093.0 0.844 123.7
2094.0 0.849 123.9
2095.0 0.853 124.0
2096.0 0.857 124.1
2097.0 0.861 124.3
2098.0 0.865 124.4
2099.0 0.869 124.5
2100.0 0.872 124.6
2101.0 0.876 124.8
2102.0 0.880 124.9
2103.0 0.883 125.0
2104.0 0.886 125.1
2105.0 0.889 125.2
2106.0 0.893 125.3
2107.0 0.896 125.5
2108.0 0.899 125.6
2109.0 0.901 125.7
2110.0 0.904 125.8
2111.0 0.907 125.9
2112.0 0.909 126.0
2113.0 0.912 126.2
2114.0 0.914 126.3
2115.0 0.916 126.4
2116.0 0.918 126.5
2117.0 0.920 126.6
2118.0 0.922 126.7
2119.0 0.924 126.8
2120.0 0.926 126.9
2121.0 0.928 127.0
2122.0 0.929 127.1
2123.0 0.931 127.2
2124.0 0.932 127.4
2125.0 0.933 127.5
2126.0 0.935 127.6
2127.0 0.936 127.7
2128.0 0.937 127.8
2129.0 0.938 127.9
2130.0 0.938 128.0
2131.0 0.939 128.1
2132.0 0.940 128.2
2133.0 0.940 128.3
2134.0 0.941 128.4
2135.0 0.941 128.5
2136.0 0.942 128.6
2137.0 0.942 128.7
2138.0 0.942 128.8
2139.0 0.942 128.9
2140.0 0.942 129.1
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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