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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:12:48
WDS:
J838
WDS ID/Discoverer
P:
239.840
Orbital period (years)
a:
7.451
Semi-major axis (arcseconds)
i:
77.6
Inclination (degrees)
Ω:
103.0
Longitude of ascending node (degrees)
T:
1967.510
Epoch of periastron passage (year)
e:
0.784
Eccentricity
ω:
258.1
Longitude of periastron (degrees)
Start-Year:
1906.0
Year
End-Year:
2144.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
202100.67+102821.0
Epoch-2000 right ascension and declination
WDS-ID:
20210+1028
WDS designation
Discoverer Code:
J838
Discover designation and components
ADS number:
13734
Aitken Double Star catalog
HD number:
357347
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
12.5
Magnitude of the primary
V2:
12.6
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1995
Date of last observation
Orbit grade:
5
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 6.133 121.3
-------------------------
1906.0 2.750 224.3
1907.0 2.770 225.8
1908.0 2.792 227.2
1909.0 2.814 228.6
1910.0 2.838 230.0
1911.0 2.863 231.4
1912.0 2.889 232.7
1913.0 2.915 234.0
1914.0 2.943 235.3
1915.0 2.971 236.6
1916.0 2.999 237.9
1917.0 3.029 239.1
1918.0 3.059 240.3
1919.0 3.089 241.5
1920.0 3.119 242.6
1921.0 3.150 243.7
1922.0 3.181 244.8
1923.0 3.212 245.9
1924.0 3.243 247.0
1925.0 3.274 248.0
1926.0 3.305 249.1
1927.0 3.336 250.1
1928.0 3.367 251.1
1929.0 3.396 252.0
1930.0 3.426 253.0
1931.0 3.455 253.9
1932.0 3.483 254.9
1933.0 3.510 255.8
1934.0 3.536 256.7
1935.0 3.561 257.5
1936.0 3.585 258.4
1937.0 3.607 259.3
1938.0 3.628 260.1
1939.0 3.646 261.0
1940.0 3.663 261.8
1941.0 3.678 262.6
1942.0 3.690 263.4
1943.0 3.700 264.2
1944.0 3.706 265.1
1945.0 3.710 265.9
1946.0 3.709 266.7
1947.0 3.705 267.5
1948.0 3.696 268.3
1949.0 3.682 269.1
1950.0 3.662 269.9
1951.0 3.635 270.8
1952.0 3.602 271.6
1953.0 3.560 272.5
1954.0 3.509 273.4
1955.0 3.447 274.3
1956.0 3.373 275.2
1957.0 3.284 276.2
1958.0 3.178 277.3
1959.0 3.052 278.4
1960.0 2.902 279.7
1961.0 2.723 281.1
1962.0 2.508 282.7
1963.0 2.251 284.7
1964.0 1.943 287.2
1965.0 1.576 290.8
1966.0 1.150 296.9
1967.0 0.688 310.9
1968.0 0.353 3.1
1969.0 0.603 67.5
1970.0 1.068 84.9
1971.0 1.525 91.7
1972.0 1.943 95.4
1973.0 2.320 97.9
1974.0 2.658 99.7
1975.0 2.961 101.1
1976.0 3.234 102.2
1977.0 3.482 103.2
1978.0 3.707 104.1
1979.0 3.912 104.8
1980.0 4.100 105.5
1981.0 4.273 106.2
1982.0 4.431 106.8
1983.0 4.578 107.3
1984.0 4.713 107.8
1985.0 4.838 108.3
1986.0 4.955 108.8
1987.0 5.062 109.2
1988.0 5.162 109.6
1989.0 5.255 110.0
1990.0 5.342 110.4
1991.0 5.422 110.8
1992.0 5.496 111.2
1993.0 5.565 111.6
1994.0 5.629 111.9
1995.0 5.689 112.3
1996.0 5.744 112.6
1997.0 5.795 112.9
1998.0 5.842 113.3
1999.0 5.885 113.6
2000.0 5.925 113.9
2001.0 5.961 114.2
2002.0 5.995 114.5
2003.0 6.025 114.8
2004.0 6.052 115.1
2005.0 6.077 115.4
2006.0 6.099 115.7
2007.0 6.118 116.0
2008.0 6.135 116.3
2009.0 6.150 116.6
2010.0 6.163 116.9
2011.0 6.173 117.2
2012.0 6.181 117.5
2013.0 6.188 117.8
2014.0 6.192 118.1
2015.0 6.195 118.4
2016.0 6.195 118.7
2017.0 6.195 119.0
2018.0 6.192 119.3
2019.0 6.188 119.5
2020.0 6.182 119.8
2021.0 6.175 120.1
2022.0 6.167 120.4
2023.0 6.157 120.7
2024.0 6.145 121.0
2025.0 6.133 121.3
2026.0 6.119 121.6
2027.0 6.104 121.9
2028.0 6.088 122.2
2029.0 6.070 122.5
2030.0 6.052 122.8
2031.0 6.032 123.1
2032.0 6.012 123.4
2033.0 5.990 123.7
2034.0 5.967 124.0
2035.0 5.944 124.3
2036.0 5.919 124.6
2037.0 5.894 125.0
2038.0 5.867 125.3
2039.0 5.840 125.6
2040.0 5.812 125.9
2041.0 5.783 126.3
2042.0 5.753 126.6
2043.0 5.723 126.9
2044.0 5.692 127.3
2045.0 5.660 127.6
2046.0 5.628 128.0
2047.0 5.594 128.3
2048.0 5.561 128.7
2049.0 5.526 129.0
2050.0 5.491 129.4
2051.0 5.455 129.8
2052.0 5.419 130.2
2053.0 5.382 130.5
2054.0 5.345 130.9
2055.0 5.307 131.3
2056.0 5.269 131.7
2057.0 5.230 132.1
2058.0 5.191 132.5
2059.0 5.151 132.9
2060.0 5.111 133.4
2061.0 5.070 133.8
2062.0 5.029 134.2
2063.0 4.988 134.7
2064.0 4.946 135.1
2065.0 4.904 135.6
2066.0 4.862 136.0
2067.0 4.819 136.5
2068.0 4.776 137.0
2069.0 4.733 137.5
2070.0 4.690 138.0
2071.0 4.646 138.5
2072.0 4.602 139.0
2073.0 4.558 139.6
2074.0 4.514 140.1
2075.0 4.469 140.6
2076.0 4.425 141.2
2077.0 4.380 141.8
2078.0 4.335 142.4
2079.0 4.291 143.0
2080.0 4.246 143.6
2081.0 4.201 144.2
2082.0 4.156 144.8
2083.0 4.111 145.5
2084.0 4.066 146.1
2085.0 4.022 146.8
2086.0 3.977 147.5
2087.0 3.932 148.2
2088.0 3.888 149.0
2089.0 3.844 149.7
2090.0 3.800 150.5
2091.0 3.756 151.2
2092.0 3.712 152.0
2093.0 3.669 152.8
2094.0 3.626 153.7
2095.0 3.584 154.5
2096.0 3.541 155.4
2097.0 3.500 156.3
2098.0 3.458 157.2
2099.0 3.417 158.2
2100.0 3.377 159.1
2101.0 3.337 160.1
2102.0 3.298 161.1
2103.0 3.259 162.2
2104.0 3.222 163.2
2105.0 3.184 164.3
2106.0 3.148 165.4
2107.0 3.112 166.5
2108.0 3.078 167.7
2109.0 3.044 168.9
2110.0 3.011 170.1
2111.0 2.979 171.3
2112.0 2.948 172.6
2113.0 2.918 173.9
2114.0 2.890 175.2
2115.0 2.862 176.6
2116.0 2.836 177.9
2117.0 2.811 179.3
2118.0 2.787 180.7
2119.0 2.765 182.2
2120.0 2.744 183.6
2121.0 2.724 185.1
2122.0 2.706 186.6
2123.0 2.689 188.2
2124.0 2.674 189.7
2125.0 2.661 191.3
2126.0 2.649 192.8
2127.0 2.639 194.4
2128.0 2.630 196.0
2129.0 2.623 197.6
2130.0 2.618 199.3
2131.0 2.614 200.9
2132.0 2.612 202.5
2133.0 2.612 204.1
2134.0 2.613 205.8
2135.0 2.616 207.4
2136.0 2.621 209.0
2137.0 2.628 210.6
2138.0 2.636 212.2
2139.0 2.645 213.8
2140.0 2.656 215.4
2141.0 2.669 217.0
2142.0 2.683 218.5
2143.0 2.698 220.1
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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