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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:22:05
WDS:
STT18AB
WDS ID/Discoverer
P:
386.510
Orbital period (years)
a:
3.296
Semi-major axis (arcseconds)
i:
75.3
Inclination (degrees)
Ω:
76.5
Longitude of ascending node (degrees)
T:
1828.130
Epoch of periastron passage (year)
e:
0.834
Eccentricity
ω:
284.3
Longitude of periastron (degrees)
Start-Year:
1832.0
Year
End-Year:
2218.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
004223.21+041000.0
Epoch-2000 right ascension and declination
WDS-ID:
00424+0410
WDS designation
Discoverer Code:
STT18AB
Discover designation and components
ADS number:
588
Aitken Double Star catalog
HD number:
3972
HD catalog number
Hipparcos number:
3326
Hipparcos catalog number
V1:
7.86
Magnitude of the primary
V2:
9.71
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1999
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 2.144 212.8
-------------------------
1832.0 0.685 72.5
1833.0 0.779 75.1
1834.0 0.859 77.2
1835.0 0.928 79.0
1836.0 0.987 80.5
1837.0 1.037 81.9
1838.0 1.081 83.2
1839.0 1.119 84.3
1840.0 1.152 85.4
1841.0 1.181 86.5
1842.0 1.207 87.5
1843.0 1.229 88.4
1844.0 1.249 89.4
1845.0 1.266 90.2
1846.0 1.281 91.1
1847.0 1.295 92.0
1848.0 1.306 92.8
1849.0 1.316 93.6
1850.0 1.325 94.4
1851.0 1.333 95.3
1852.0 1.339 96.0
1853.0 1.345 96.8
1854.0 1.349 97.6
1855.0 1.353 98.4
1856.0 1.356 99.2
1857.0 1.359 99.9
1858.0 1.361 100.7
1859.0 1.362 101.5
1860.0 1.363 102.2
1861.0 1.363 103.0
1862.0 1.363 103.7
1863.0 1.362 104.5
1864.0 1.361 105.3
1865.0 1.360 106.0
1866.0 1.358 106.8
1867.0 1.357 107.6
1868.0 1.355 108.3
1869.0 1.353 109.1
1870.0 1.350 109.9
1871.0 1.348 110.7
1872.0 1.345 111.5
1873.0 1.342 112.2
1874.0 1.339 113.0
1875.0 1.336 113.8
1876.0 1.333 114.6
1877.0 1.330 115.4
1878.0 1.327 116.2
1879.0 1.323 117.0
1880.0 1.320 117.8
1881.0 1.317 118.7
1882.0 1.314 119.5
1883.0 1.310 120.3
1884.0 1.307 121.1
1885.0 1.304 122.0
1886.0 1.301 122.8
1887.0 1.298 123.6
1888.0 1.295 124.5
1889.0 1.292 125.3
1890.0 1.289 126.2
1891.0 1.286 127.0
1892.0 1.283 127.9
1893.0 1.281 128.7
1894.0 1.278 129.6
1895.0 1.276 130.5
1896.0 1.274 131.3
1897.0 1.272 132.2
1898.0 1.270 133.1
1899.0 1.268 134.0
1900.0 1.266 134.9
1901.0 1.265 135.7
1902.0 1.263 136.6
1903.0 1.262 137.5
1904.0 1.261 138.4
1905.0 1.260 139.3
1906.0 1.260 140.2
1907.0 1.259 141.1
1908.0 1.259 142.0
1909.0 1.258 142.9
1910.0 1.258 143.8
1911.0 1.259 144.7
1912.0 1.259 145.6
1913.0 1.260 146.5
1914.0 1.260 147.3
1915.0 1.261 148.2
1916.0 1.262 149.1
1917.0 1.264 150.0
1918.0 1.265 150.9
1919.0 1.267 151.8
1920.0 1.269 152.7
1921.0 1.271 153.5
1922.0 1.273 154.4
1923.0 1.276 155.3
1924.0 1.279 156.2
1925.0 1.281 157.0
1926.0 1.284 157.9
1927.0 1.288 158.7
1928.0 1.291 159.6
1929.0 1.295 160.4
1930.0 1.299 161.3
1931.0 1.303 162.1
1932.0 1.307 163.0
1933.0 1.311 163.8
1934.0 1.316 164.6
1935.0 1.321 165.4
1936.0 1.326 166.2
1937.0 1.331 167.0
1938.0 1.336 167.8
1939.0 1.341 168.6
1940.0 1.347 169.4
1941.0 1.353 170.2
1942.0 1.359 171.0
1943.0 1.365 171.7
1944.0 1.371 172.5
1945.0 1.378 173.2
1946.0 1.384 174.0
1947.0 1.391 174.7
1948.0 1.398 175.4
1949.0 1.405 176.2
1950.0 1.412 176.9
1951.0 1.419 177.6
1952.0 1.426 178.3
1953.0 1.434 179.0
1954.0 1.442 179.7
1955.0 1.449 180.3
1956.0 1.457 181.0
1957.0 1.465 181.7
1958.0 1.474 182.3
1959.0 1.482 183.0
1960.0 1.490 183.6
1961.0 1.499 184.2
1962.0 1.507 184.9
1963.0 1.516 185.5
1964.0 1.525 186.1
1965.0 1.533 186.7
1966.0 1.542 187.3
1967.0 1.551 187.9
1968.0 1.561 188.5
1969.0 1.570 189.1
1970.0 1.579 189.6
1971.0 1.588 190.2
1972.0 1.598 190.8
1973.0 1.607 191.3
1974.0 1.617 191.9
1975.0 1.627 192.4
1976.0 1.636 192.9
1977.0 1.646 193.5
1978.0 1.656 194.0
1979.0 1.666 194.5
1980.0 1.676 195.0
1981.0 1.686 195.5
1982.0 1.696 196.0
1983.0 1.706 196.5
1984.0 1.716 197.0
1985.0 1.726 197.4
1986.0 1.736 197.9
1987.0 1.746 198.4
1988.0 1.757 198.8
1989.0 1.767 199.3
1990.0 1.777 199.8
1991.0 1.788 200.2
1992.0 1.798 200.6
1993.0 1.809 201.1
1994.0 1.819 201.5
1995.0 1.830 201.9
1996.0 1.840 202.4
1997.0 1.850 202.8
1998.0 1.861 203.2
1999.0 1.872 203.6
2000.0 1.882 204.0
2001.0 1.893 204.4
2002.0 1.903 204.8
2003.0 1.914 205.2
2004.0 1.924 205.6
2005.0 1.935 205.9
2006.0 1.945 206.3
2007.0 1.956 206.7
2008.0 1.967 207.1
2009.0 1.977 207.4
2010.0 1.988 207.8
2011.0 1.998 208.1
2012.0 2.009 208.5
2013.0 2.019 208.8
2014.0 2.030 209.2
2015.0 2.040 209.5
2016.0 2.051 209.9
2017.0 2.061 210.2
2018.0 2.072 210.5
2019.0 2.082 210.9
2020.0 2.092 211.2
2021.0 2.103 211.5
2022.0 2.113 211.8
2023.0 2.124 212.1
2024.0 2.134 212.5
2025.0 2.144 212.8
2026.0 2.154 213.1
2027.0 2.165 213.4
2028.0 2.175 213.7
2029.0 2.185 214.0
2030.0 2.195 214.3
2031.0 2.205 214.6
2032.0 2.215 214.8
2033.0 2.225 215.1
2034.0 2.235 215.4
2035.0 2.245 215.7
2036.0 2.255 216.0
2037.0 2.265 216.3
2038.0 2.274 216.5
2039.0 2.284 216.8
2040.0 2.294 217.1
2041.0 2.303 217.3
2042.0 2.313 217.6
2043.0 2.323 217.9
2044.0 2.332 218.1
2045.0 2.342 218.4
2046.0 2.351 218.7
2047.0 2.360 218.9
2048.0 2.369 219.2
2049.0 2.379 219.4
2050.0 2.388 219.7
2051.0 2.397 219.9
2052.0 2.406 220.2
2053.0 2.415 220.4
2054.0 2.424 220.6
2055.0 2.432 220.9
2056.0 2.441 221.1
2057.0 2.450 221.4
2058.0 2.459 221.6
2059.0 2.467 221.8
2060.0 2.475 222.1
2061.0 2.484 222.3
2062.0 2.492 222.5
2063.0 2.500 222.7
2064.0 2.509 223.0
2065.0 2.517 223.2
2066.0 2.525 223.4
2067.0 2.533 223.6
2068.0 2.540 223.9
2069.0 2.548 224.1
2070.0 2.556 224.3
2071.0 2.563 224.5
2072.0 2.571 224.7
2073.0 2.578 224.9
2074.0 2.585 225.2
2075.0 2.593 225.4
2076.0 2.600 225.6
2077.0 2.607 225.8
2078.0 2.614 226.0
2079.0 2.620 226.2
2080.0 2.627 226.4
2081.0 2.634 226.6
2082.0 2.640 226.8
2083.0 2.647 227.0
2084.0 2.653 227.2
2085.0 2.659 227.4
2086.0 2.665 227.6
2087.0 2.671 227.8
2088.0 2.677 228.0
2089.0 2.683 228.2
2090.0 2.688 228.4
2091.0 2.694 228.6
2092.0 2.699 228.8
2093.0 2.704 229.0
2094.0 2.709 229.2
2095.0 2.714 229.4
2096.0 2.719 229.6
2097.0 2.724 229.8
2098.0 2.729 230.0
2099.0 2.733 230.1
2100.0 2.737 230.3
2101.0 2.742 230.5
2102.0 2.746 230.7
2103.0 2.750 230.9
2104.0 2.753 231.1
2105.0 2.757 231.3
2106.0 2.760 231.5
2107.0 2.764 231.6
2108.0 2.767 231.8
2109.0 2.770 232.0
2110.0 2.773 232.2
2111.0 2.775 232.4
2112.0 2.778 232.6
2113.0 2.780 232.8
2114.0 2.782 232.9
2115.0 2.784 233.1
2116.0 2.786 233.3
2117.0 2.788 233.5
2118.0 2.789 233.7
2119.0 2.790 233.8
2120.0 2.791 234.0
2121.0 2.792 234.2
2122.0 2.793 234.4
2123.0 2.794 234.6
2124.0 2.794 234.8
2125.0 2.794 234.9
2126.0 2.794 235.1
2127.0 2.793 235.3
2128.0 2.793 235.5
2129.0 2.792 235.7
2130.0 2.791 235.8
2131.0 2.790 236.0
2132.0 2.788 236.2
2133.0 2.787 236.4
2134.0 2.785 236.6
2135.0 2.783 236.8
2136.0 2.780 236.9
2137.0 2.777 237.1
2138.0 2.774 237.3
2139.0 2.771 237.5
2140.0 2.768 237.7
2141.0 2.764 237.9
2142.0 2.760 238.0
2143.0 2.755 238.2
2144.0 2.751 238.4
2145.0 2.746 238.6
2146.0 2.740 238.8
2147.0 2.735 239.0
2148.0 2.729 239.2
2149.0 2.722 239.4
2150.0 2.716 239.6
2151.0 2.709 239.8
2152.0 2.701 239.9
2153.0 2.694 240.1
2154.0 2.686 240.3
2155.0 2.677 240.5
2156.0 2.668 240.7
2157.0 2.659 240.9
2158.0 2.649 241.1
2159.0 2.639 241.3
2160.0 2.628 241.5
2161.0 2.617 241.7
2162.0 2.606 242.0
2163.0 2.594 242.2
2164.0 2.581 242.4
2165.0 2.568 242.6
2166.0 2.554 242.8
2167.0 2.540 243.0
2168.0 2.525 243.2
2169.0 2.510 243.5
2170.0 2.494 243.7
2171.0 2.477 243.9
2172.0 2.460 244.2
2173.0 2.442 244.4
2174.0 2.424 244.6
2175.0 2.404 244.9
2176.0 2.384 245.1
2177.0 2.363 245.4
2178.0 2.341 245.6
2179.0 2.318 245.9
2180.0 2.295 246.2
2181.0 2.270 246.4
2182.0 2.245 246.7
2183.0 2.218 247.0
2184.0 2.190 247.3
2185.0 2.161 247.6
2186.0 2.131 247.9
2187.0 2.100 248.2
2188.0 2.067 248.5
2189.0 2.033 248.9
2190.0 1.997 249.2
2191.0 1.959 249.6
2192.0 1.920 250.0
2193.0 1.879 250.3
2194.0 1.836 250.8
2195.0 1.790 251.2
2196.0 1.742 251.6
2197.0 1.692 252.1
2198.0 1.639 252.6
2199.0 1.583 253.2
2200.0 1.523 253.8
2201.0 1.460 254.4
2202.0 1.392 255.1
2203.0 1.320 255.9
2204.0 1.243 256.7
2205.0 1.160 257.7
2206.0 1.071 258.9
2207.0 0.974 260.2
2208.0 0.868 261.9
2209.0 0.753 264.0
2210.0 0.628 267.0
2211.0 0.492 271.6
2212.0 0.347 279.9
2213.0 0.208 299.8
2214.0 0.142 356.0
2215.0 0.236 43.0
2216.0 0.376 59.1
2217.0 0.511 66.4
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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