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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:18:52
WDS:
STF1757AB
WDS ID/Discoverer
P:
344.113
Orbital period (years)
a:
2.2042
Semi-major axis (arcseconds)
i:
50.025
Inclination (degrees)
Ω:
97.408
Longitude of ascending node (degrees)
T:
2088.166
Epoch of periastron passage (year)
e:
0.25953
Eccentricity
ω:
160.383
Longitude of periastron (degrees)
Start-Year:
1853.0
Year
End-Year:
2197.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
133416.38-001849.8
Epoch-2000 right ascension and declination
WDS-ID:
13343-0019
WDS designation
Discoverer Code:
STF1757AB
Discover designation and components
ADS number:
8949
Aitken Double Star catalog
HD number:
118036
HD catalog number
Hipparcos number:
66212
Hipparcos catalog number
V1:
7.82
Magnitude of the primary
V2:
8.75
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
Date of last observation
Orbit grade:
3
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 1.526 150.8
-------------------------
1853.0 1.866 46.7
1854.0 1.883 47.6
1855.0 1.899 48.5
1856.0 1.916 49.3
1857.0 1.933 50.2
1858.0 1.949 51.0
1859.0 1.966 51.8
1860.0 1.983 52.6
1861.0 1.999 53.4
1862.0 2.016 54.2
1863.0 2.032 55.0
1864.0 2.049 55.7
1865.0 2.065 56.5
1866.0 2.082 57.2
1867.0 2.098 57.9
1868.0 2.114 58.7
1869.0 2.130 59.4
1870.0 2.146 60.0
1871.0 2.162 60.7
1872.0 2.178 61.4
1873.0 2.194 62.1
1874.0 2.209 62.7
1875.0 2.225 63.4
1876.0 2.240 64.0
1877.0 2.255 64.6
1878.0 2.270 65.2
1879.0 2.285 65.8
1880.0 2.299 66.4
1881.0 2.314 67.0
1882.0 2.328 67.6
1883.0 2.342 68.2
1884.0 2.356 68.8
1885.0 2.370 69.3
1886.0 2.384 69.9
1887.0 2.397 70.4
1888.0 2.410 71.0
1889.0 2.423 71.5
1890.0 2.436 72.1
1891.0 2.449 72.6
1892.0 2.461 73.1
1893.0 2.473 73.6
1894.0 2.485 74.1
1895.0 2.496 74.6
1896.0 2.508 75.1
1897.0 2.519 75.6
1898.0 2.530 76.1
1899.0 2.541 76.6
1900.0 2.551 77.1
1901.0 2.561 77.6
1902.0 2.571 78.1
1903.0 2.581 78.6
1904.0 2.590 79.0
1905.0 2.599 79.5
1906.0 2.608 80.0
1907.0 2.617 80.4
1908.0 2.625 80.9
1909.0 2.633 81.3
1910.0 2.641 81.8
1911.0 2.649 82.2
1912.0 2.656 82.7
1913.0 2.663 83.1
1914.0 2.670 83.6
1915.0 2.676 84.0
1916.0 2.682 84.5
1917.0 2.688 84.9
1918.0 2.693 85.3
1919.0 2.699 85.8
1920.0 2.704 86.2
1921.0 2.708 86.6
1922.0 2.713 87.1
1923.0 2.717 87.5
1924.0 2.720 87.9
1925.0 2.724 88.3
1926.0 2.727 88.8
1927.0 2.730 89.2
1928.0 2.732 89.6
1929.0 2.734 90.0
1930.0 2.736 90.5
1931.0 2.738 90.9
1932.0 2.739 91.3
1933.0 2.740 91.7
1934.0 2.741 92.1
1935.0 2.741 92.6
1936.0 2.741 93.0
1937.0 2.741 93.4
1938.0 2.740 93.8
1939.0 2.739 94.2
1940.0 2.738 94.7
1941.0 2.736 95.1
1942.0 2.734 95.5
1943.0 2.732 95.9
1944.0 2.729 96.3
1945.0 2.726 96.8
1946.0 2.723 97.2
1947.0 2.719 97.6
1948.0 2.715 98.0
1949.0 2.711 98.5
1950.0 2.706 98.9
1951.0 2.701 99.3
1952.0 2.696 99.8
1953.0 2.690 100.2
1954.0 2.684 100.6
1955.0 2.678 101.1
1956.0 2.671 101.5
1957.0 2.664 102.0
1958.0 2.657 102.4
1959.0 2.649 102.9
1960.0 2.641 103.3
1961.0 2.633 103.8
1962.0 2.624 104.2
1963.0 2.615 104.7
1964.0 2.606 105.1
1965.0 2.596 105.6
1966.0 2.586 106.1
1967.0 2.576 106.5
1968.0 2.566 107.0
1969.0 2.555 107.5
1970.0 2.543 108.0
1971.0 2.532 108.5
1972.0 2.520 109.0
1973.0 2.507 109.5
1974.0 2.495 110.0
1975.0 2.482 110.5
1976.0 2.468 111.0
1977.0 2.455 111.5
1978.0 2.441 112.1
1979.0 2.427 112.6
1980.0 2.412 113.1
1981.0 2.397 113.7
1982.0 2.382 114.2
1983.0 2.366 114.8
1984.0 2.351 115.3
1985.0 2.335 115.9
1986.0 2.318 116.5
1987.0 2.301 117.1
1988.0 2.284 117.7
1989.0 2.267 118.3
1990.0 2.250 118.9
1991.0 2.232 119.6
1992.0 2.214 120.2
1993.0 2.195 120.8
1994.0 2.177 121.5
1995.0 2.158 122.2
1996.0 2.139 122.9
1997.0 2.119 123.5
1998.0 2.100 124.3
1999.0 2.080 125.0
2000.0 2.060 125.7
2001.0 2.040 126.5
2002.0 2.019 127.2
2003.0 1.999 128.0
2004.0 1.978 128.8
2005.0 1.957 129.6
2006.0 1.936 130.5
2007.0 1.914 131.3
2008.0 1.893 132.2
2009.0 1.871 133.1
2010.0 1.850 134.0
2011.0 1.828 134.9
2012.0 1.806 135.9
2013.0 1.784 136.8
2014.0 1.763 137.8
2015.0 1.741 138.9
2016.0 1.719 139.9
2017.0 1.697 141.0
2018.0 1.675 142.1
2019.0 1.653 143.3
2020.0 1.632 144.4
2021.0 1.610 145.6
2022.0 1.589 146.9
2023.0 1.568 148.1
2024.0 1.547 149.4
2025.0 1.526 150.8
2026.0 1.506 152.1
2027.0 1.485 153.5
2028.0 1.466 155.0
2029.0 1.446 156.5
2030.0 1.427 158.0
2031.0 1.409 159.6
2032.0 1.391 161.2
2033.0 1.373 162.8
2034.0 1.356 164.5
2035.0 1.340 166.3
2036.0 1.324 168.0
2037.0 1.309 169.9
2038.0 1.295 171.7
2039.0 1.282 173.6
2040.0 1.269 175.6
2041.0 1.258 177.5
2042.0 1.247 179.6
2043.0 1.237 181.6
2044.0 1.228 183.7
2045.0 1.220 185.8
2046.0 1.213 187.9
2047.0 1.208 190.1
2048.0 1.203 192.2
2049.0 1.199 194.4
2050.0 1.197 196.6
2051.0 1.195 198.8
2052.0 1.195 201.0
2053.0 1.196 203.2
2054.0 1.197 205.4
2055.0 1.200 207.6
2056.0 1.204 209.8
2057.0 1.209 212.0
2058.0 1.215 214.1
2059.0 1.221 216.3
2060.0 1.229 218.4
2061.0 1.237 220.4
2062.0 1.247 222.5
2063.0 1.257 224.5
2064.0 1.267 226.5
2065.0 1.278 228.4
2066.0 1.290 230.3
2067.0 1.302 232.2
2068.0 1.315 234.0
2069.0 1.328 235.9
2070.0 1.341 237.6
2071.0 1.355 239.4
2072.0 1.369 241.1
2073.0 1.383 242.7
2074.0 1.397 244.4
2075.0 1.411 246.0
2076.0 1.425 247.5
2077.0 1.439 249.1
2078.0 1.453 250.6
2079.0 1.466 252.1
2080.0 1.480 253.5
2081.0 1.493 254.9
2082.0 1.506 256.3
2083.0 1.519 257.7
2084.0 1.531 259.1
2085.0 1.543 260.4
2086.0 1.554 261.7
2087.0 1.565 263.0
2088.0 1.576 264.3
2089.0 1.585 265.6
2090.0 1.595 266.8
2091.0 1.604 268.0
2092.0 1.612 269.3
2093.0 1.619 270.5
2094.0 1.627 271.7
2095.0 1.633 272.9
2096.0 1.639 274.0
2097.0 1.644 275.2
2098.0 1.648 276.4
2099.0 1.652 277.5
2100.0 1.656 278.7
2101.0 1.658 279.8
2102.0 1.660 281.0
2103.0 1.661 282.1
2104.0 1.662 283.3
2105.0 1.662 284.4
2106.0 1.662 285.5
2107.0 1.661 286.7
2108.0 1.659 287.8
2109.0 1.657 289.0
2110.0 1.655 290.1
2111.0 1.651 291.3
2112.0 1.648 292.4
2113.0 1.644 293.6
2114.0 1.639 294.8
2115.0 1.634 295.9
2116.0 1.628 297.1
2117.0 1.623 298.3
2118.0 1.617 299.5
2119.0 1.610 300.7
2120.0 1.603 302.0
2121.0 1.596 303.2
2122.0 1.589 304.4
2123.0 1.582 305.7
2124.0 1.574 307.0
2125.0 1.566 308.2
2126.0 1.558 309.5
2127.0 1.550 310.8
2128.0 1.542 312.2
2129.0 1.534 313.5
2130.0 1.526 314.8
2131.0 1.518 316.2
2132.0 1.510 317.6
2133.0 1.503 319.0
2134.0 1.495 320.4
2135.0 1.487 321.8
2136.0 1.480 323.2
2137.0 1.473 324.7
2138.0 1.466 326.1
2139.0 1.459 327.6
2140.0 1.453 329.1
2141.0 1.447 330.6
2142.0 1.441 332.1
2143.0 1.436 333.6
2144.0 1.431 335.2
2145.0 1.427 336.7
2146.0 1.423 338.2
2147.0 1.420 339.8
2148.0 1.416 341.4
2149.0 1.414 343.0
2150.0 1.412 344.5
2151.0 1.410 346.1
2152.0 1.410 347.7
2153.0 1.409 349.3
2154.0 1.409 350.9
2155.0 1.410 352.5
2156.0 1.411 354.0
2157.0 1.413 355.6
2158.0 1.416 357.2
2159.0 1.419 358.8
2160.0 1.423 0.3
2161.0 1.427 1.9
2162.0 1.432 3.4
2163.0 1.437 5.0
2164.0 1.443 6.5
2165.0 1.449 8.0
2166.0 1.456 9.5
2167.0 1.464 11.0
2168.0 1.472 12.4
2169.0 1.481 13.9
2170.0 1.490 15.3
2171.0 1.499 16.7
2172.0 1.509 18.1
2173.0 1.520 19.5
2174.0 1.531 20.8
2175.0 1.542 22.2
2176.0 1.554 23.5
2177.0 1.566 24.8
2178.0 1.579 26.1
2179.0 1.591 27.3
2180.0 1.605 28.6
2181.0 1.618 29.8
2182.0 1.632 31.0
2183.0 1.646 32.1
2184.0 1.660 33.3
2185.0 1.675 34.4
2186.0 1.690 35.5
2187.0 1.705 36.6
2188.0 1.720 37.7
2189.0 1.736 38.8
2190.0 1.751 39.8
2191.0 1.767 40.8
2192.0 1.783 41.8
2193.0 1.799 42.8
2194.0 1.815 43.8
2195.0 1.832 44.7
2196.0 1.848 45.7
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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