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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:16:51
WDS:
STT118AB
WDS ID/Discoverer
P:
231.500
Orbital period (years)
a:
0.365
Semi-major axis (arcseconds)
i:
91.2
Inclination (degrees)
Ω:
137.9
Longitude of ascending node (degrees)
T:
2003.000
Epoch of periastron passage (year)
e:
0.834
Eccentricity
ω:
351.2
Longitude of periastron (degrees)
Start-Year:
1910.0
Year
End-Year:
2140.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
054822.36+205210.3
Epoch-2000 right ascension and declination
WDS-ID:
05484+2052
WDS designation
Discoverer Code:
STT118AB
Discover designation and components
ADS number:
4392
Aitken Double Star catalog
HD number:
38670
HD catalog number
Hipparcos number:
27421
Hipparcos catalog number
V1:
6.32
Magnitude of the primary
V2:
7.57
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2016
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 0.217 319.2
-------------------------
1910.0 0.651 318.0
1911.0 0.650 318.0
1912.0 0.648 317.9
1913.0 0.647 317.9
1914.0 0.645 317.9
1915.0 0.643 317.9
1916.0 0.641 317.9
1917.0 0.639 317.9
1918.0 0.637 317.9
1919.0 0.635 317.9
1920.0 0.633 317.9
1921.0 0.631 317.9
1922.0 0.628 317.9
1923.0 0.626 317.9
1924.0 0.623 317.9
1925.0 0.621 317.9
1926.0 0.618 317.9
1927.0 0.615 317.9
1928.0 0.612 317.9
1929.0 0.609 317.8
1930.0 0.606 317.8
1931.0 0.603 317.8
1932.0 0.599 317.8
1933.0 0.596 317.8
1934.0 0.592 317.8
1935.0 0.589 317.8
1936.0 0.585 317.8
1937.0 0.581 317.8
1938.0 0.577 317.8
1939.0 0.573 317.8
1940.0 0.569 317.8
1941.0 0.565 317.8
1942.0 0.561 317.8
1943.0 0.556 317.7
1944.0 0.551 317.7
1945.0 0.547 317.7
1946.0 0.542 317.7
1947.0 0.537 317.7
1948.0 0.532 317.7
1949.0 0.527 317.7
1950.0 0.521 317.7
1951.0 0.516 317.7
1952.0 0.510 317.7
1953.0 0.505 317.7
1954.0 0.499 317.7
1955.0 0.493 317.6
1956.0 0.487 317.6
1957.0 0.481 317.6
1958.0 0.474 317.6
1959.0 0.468 317.6
1960.0 0.461 317.6
1961.0 0.454 317.6
1962.0 0.447 317.6
1963.0 0.440 317.6
1964.0 0.433 317.5
1965.0 0.425 317.5
1966.0 0.418 317.5
1967.0 0.410 317.5
1968.0 0.402 317.5
1969.0 0.393 317.5
1970.0 0.385 317.5
1971.0 0.376 317.4
1972.0 0.368 317.4
1973.0 0.359 317.4
1974.0 0.349 317.4
1975.0 0.340 317.4
1976.0 0.330 317.3
1977.0 0.320 317.3
1978.0 0.310 317.3
1979.0 0.300 317.3
1980.0 0.289 317.2
1981.0 0.278 317.2
1982.0 0.266 317.2
1983.0 0.255 317.1
1984.0 0.243 317.1
1985.0 0.230 317.1
1986.0 0.218 317.0
1987.0 0.205 317.0
1988.0 0.191 316.9
1989.0 0.177 316.8
1990.0 0.163 316.7
1991.0 0.148 316.6
1992.0 0.132 316.5
1993.0 0.116 316.4
1994.0 0.099 316.2
1995.0 0.082 315.9
1996.0 0.064 315.4
1997.0 0.045 314.6
1998.0 0.025 312.5
1999.0 0.006 296.0
2000.0 0.015 144.9
2001.0 0.034 140.2
2002.0 0.050 138.9
2003.0 0.060 138.1
2004.0 0.060 137.4
2005.0 0.053 136.7
2006.0 0.040 135.6
2007.0 0.026 133.3
2008.0 0.011 124.7
2009.0 0.006 346.1
2010.0 0.021 326.2
2011.0 0.036 323.1
2012.0 0.051 321.8
2013.0 0.066 321.1
2014.0 0.080 320.7
2015.0 0.094 320.3
2016.0 0.108 320.1
2017.0 0.121 319.9
2018.0 0.134 319.8
2019.0 0.147 319.6
2020.0 0.159 319.5
2021.0 0.171 319.5
2022.0 0.183 319.4
2023.0 0.195 319.3
2024.0 0.206 319.3
2025.0 0.217 319.2
2026.0 0.228 319.2
2027.0 0.238 319.1
2028.0 0.249 319.1
2029.0 0.259 319.0
2030.0 0.269 319.0
2031.0 0.278 319.0
2032.0 0.288 318.9
2033.0 0.297 318.9
2034.0 0.306 318.9
2035.0 0.315 318.9
2036.0 0.324 318.8
2037.0 0.333 318.8
2038.0 0.341 318.8
2039.0 0.350 318.8
2040.0 0.358 318.7
2041.0 0.366 318.7
2042.0 0.374 318.7
2043.0 0.381 318.7
2044.0 0.389 318.7
2045.0 0.396 318.7
2046.0 0.404 318.7
2047.0 0.411 318.6
2048.0 0.418 318.6
2049.0 0.425 318.6
2050.0 0.431 318.6
2051.0 0.438 318.6
2052.0 0.445 318.6
2053.0 0.451 318.6
2054.0 0.457 318.5
2055.0 0.463 318.5
2056.0 0.470 318.5
2057.0 0.475 318.5
2058.0 0.481 318.5
2059.0 0.487 318.5
2060.0 0.493 318.5
2061.0 0.498 318.5
2062.0 0.504 318.5
2063.0 0.509 318.5
2064.0 0.514 318.4
2065.0 0.519 318.4
2066.0 0.524 318.4
2067.0 0.529 318.4
2068.0 0.534 318.4
2069.0 0.538 318.4
2070.0 0.543 318.4
2071.0 0.547 318.4
2072.0 0.552 318.4
2073.0 0.556 318.4
2074.0 0.560 318.4
2075.0 0.565 318.4
2076.0 0.569 318.3
2077.0 0.572 318.3
2078.0 0.576 318.3
2079.0 0.580 318.3
2080.0 0.584 318.3
2081.0 0.587 318.3
2082.0 0.591 318.3
2083.0 0.594 318.3
2084.0 0.598 318.3
2085.0 0.601 318.3
2086.0 0.604 318.3
2087.0 0.607 318.3
2088.0 0.610 318.3
2089.0 0.613 318.3
2090.0 0.616 318.3
2091.0 0.618 318.2
2092.0 0.621 318.2
2093.0 0.624 318.2
2094.0 0.626 318.2
2095.0 0.628 318.2
2096.0 0.631 318.2
2097.0 0.633 318.2
2098.0 0.635 318.2
2099.0 0.637 318.2
2100.0 0.639 318.2
2101.0 0.641 318.2
2102.0 0.643 318.2
2103.0 0.645 318.2
2104.0 0.646 318.2
2105.0 0.648 318.2
2106.0 0.649 318.2
2107.0 0.651 318.2
2108.0 0.652 318.1
2109.0 0.653 318.1
2110.0 0.655 318.1
2111.0 0.656 318.1
2112.0 0.657 318.1
2113.0 0.658 318.1
2114.0 0.658 318.1
2115.0 0.659 318.1
2116.0 0.660 318.1
2117.0 0.661 318.1
2118.0 0.661 318.1
2119.0 0.662 318.1
2120.0 0.662 318.1
2121.0 0.662 318.1
2122.0 0.663 318.1
2123.0 0.663 318.1
2124.0 0.663 318.1
2125.0 0.663 318.1
2126.0 0.663 318.0
2127.0 0.663 318.0
2128.0 0.662 318.0
2129.0 0.662 318.0
2130.0 0.662 318.0
2131.0 0.661 318.0
2132.0 0.661 318.0
2133.0 0.660 318.0
2134.0 0.659 318.0
2135.0 0.658 318.0
2136.0 0.658 318.0
2137.0 0.657 318.0
2138.0 0.656 318.0
2139.0 0.654 318.0
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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