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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:26:09
WDS:
STF1879AB
WDS ID/Discoverer
P:
253.000
Orbital period (years)
a:
1.111
Semi-major axis (arcseconds)
i:
117.8
Inclination (degrees)
Ω:
251.24
Longitude of ascending node (degrees)
T:
1866.000
Epoch of periastron passage (year)
e:
0.6989
Eccentricity
ω:
327.8
Longitude of periastron (degrees)
Start-Year:
1899.0
Year
End-Year:
2151.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
144615.58+093848.2
Epoch-2000 right ascension and declination
WDS-ID:
14463+0939
WDS designation
Discoverer Code:
STF1879AB
Discover designation and components
ADS number:
9380
Aitken Double Star catalog
HD number:
130145
HD catalog number
Hipparcos number:
72221
Hipparcos catalog number
V1:
7.79
Magnitude of the primary
V2:
8.45
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
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 1.711 81.1
-------------------------
1899.0 0.525 140.7
1900.0 0.540 138.6
1901.0 0.556 136.7
1902.0 0.572 134.8
1903.0 0.589 133.1
1904.0 0.605 131.5
1905.0 0.622 129.9
1906.0 0.638 128.4
1907.0 0.655 127.0
1908.0 0.672 125.7
1909.0 0.689 124.4
1910.0 0.706 123.2
1911.0 0.723 122.1
1912.0 0.740 121.0
1913.0 0.757 119.9
1914.0 0.774 118.9
1915.0 0.791 118.0
1916.0 0.808 117.1
1917.0 0.825 116.2
1918.0 0.841 115.3
1919.0 0.858 114.5
1920.0 0.874 113.8
1921.0 0.891 113.0
1922.0 0.907 112.3
1923.0 0.923 111.6
1924.0 0.939 110.9
1925.0 0.955 110.2
1926.0 0.971 109.6
1927.0 0.987 109.0
1928.0 1.002 108.4
1929.0 1.017 107.8
1930.0 1.033 107.3
1931.0 1.048 106.7
1932.0 1.063 106.2
1933.0 1.078 105.7
1934.0 1.092 105.2
1935.0 1.107 104.7
1936.0 1.121 104.2
1937.0 1.135 103.8
1938.0 1.150 103.3
1939.0 1.163 102.9
1940.0 1.177 102.5
1941.0 1.191 102.0
1942.0 1.204 101.6
1943.0 1.218 101.2
1944.0 1.231 100.9
1945.0 1.244 100.5
1946.0 1.257 100.1
1947.0 1.269 99.7
1948.0 1.282 99.4
1949.0 1.294 99.0
1950.0 1.306 98.7
1951.0 1.318 98.3
1952.0 1.330 98.0
1953.0 1.342 97.7
1954.0 1.353 97.3
1955.0 1.364 97.0
1956.0 1.376 96.7
1957.0 1.387 96.4
1958.0 1.397 96.1
1959.0 1.408 95.8
1960.0 1.419 95.5
1961.0 1.429 95.2
1962.0 1.439 94.9
1963.0 1.449 94.7
1964.0 1.459 94.4
1965.0 1.468 94.1
1966.0 1.478 93.8
1967.0 1.487 93.6
1968.0 1.496 93.3
1969.0 1.505 93.0
1970.0 1.514 92.8
1971.0 1.523 92.5
1972.0 1.531 92.3
1973.0 1.539 92.0
1974.0 1.547 91.8
1975.0 1.555 91.5
1976.0 1.563 91.3
1977.0 1.571 91.1
1978.0 1.578 90.8
1979.0 1.585 90.6
1980.0 1.592 90.4
1981.0 1.599 90.1
1982.0 1.606 89.9
1983.0 1.612 89.7
1984.0 1.618 89.5
1985.0 1.625 89.2
1986.0 1.631 89.0
1987.0 1.636 88.8
1988.0 1.642 88.6
1989.0 1.647 88.4
1990.0 1.652 88.1
1991.0 1.657 87.9
1992.0 1.662 87.7
1993.0 1.667 87.5
1994.0 1.671 87.3
1995.0 1.676 87.1
1996.0 1.680 86.9
1997.0 1.684 86.7
1998.0 1.687 86.5
1999.0 1.691 86.3
2000.0 1.694 86.1
2001.0 1.697 85.8
2002.0 1.700 85.6
2003.0 1.703 85.4
2004.0 1.706 85.2
2005.0 1.708 85.0
2006.0 1.710 84.8
2007.0 1.712 84.6
2008.0 1.714 84.4
2009.0 1.715 84.2
2010.0 1.717 84.0
2011.0 1.718 83.8
2012.0 1.719 83.6
2013.0 1.719 83.4
2014.0 1.720 83.2
2015.0 1.720 83.0
2016.0 1.720 82.9
2017.0 1.720 82.7
2018.0 1.720 82.5
2019.0 1.719 82.3
2020.0 1.719 82.1
2021.0 1.718 81.9
2022.0 1.716 81.7
2023.0 1.715 81.5
2024.0 1.713 81.3
2025.0 1.711 81.1
2026.0 1.709 80.9
2027.0 1.707 80.7
2028.0 1.704 80.5
2029.0 1.702 80.3
2030.0 1.699 80.1
2031.0 1.695 79.9
2032.0 1.692 79.6
2033.0 1.688 79.4
2034.0 1.684 79.2
2035.0 1.680 79.0
2036.0 1.675 78.8
2037.0 1.671 78.6
2038.0 1.665 78.4
2039.0 1.660 78.2
2040.0 1.655 78.0
2041.0 1.649 77.8
2042.0 1.643 77.5
2043.0 1.637 77.3
2044.0 1.630 77.1
2045.0 1.623 76.9
2046.0 1.616 76.7
2047.0 1.608 76.4
2048.0 1.601 76.2
2049.0 1.593 76.0
2050.0 1.584 75.7
2051.0 1.576 75.5
2052.0 1.567 75.3
2053.0 1.558 75.0
2054.0 1.548 74.8
2055.0 1.538 74.5
2056.0 1.528 74.3
2057.0 1.517 74.0
2058.0 1.507 73.8
2059.0 1.495 73.5
2060.0 1.484 73.3
2061.0 1.472 73.0
2062.0 1.460 72.7
2063.0 1.447 72.4
2064.0 1.434 72.2
2065.0 1.421 71.9
2066.0 1.407 71.6
2067.0 1.393 71.3
2068.0 1.379 71.0
2069.0 1.364 70.7
2070.0 1.348 70.4
2071.0 1.333 70.0
2072.0 1.316 69.7
2073.0 1.300 69.3
2074.0 1.283 69.0
2075.0 1.265 68.6
2076.0 1.247 68.3
2077.0 1.229 67.9
2078.0 1.210 67.5
2079.0 1.190 67.1
2080.0 1.170 66.7
2081.0 1.150 66.2
2082.0 1.129 65.8
2083.0 1.107 65.3
2084.0 1.085 64.8
2085.0 1.062 64.3
2086.0 1.039 63.8
2087.0 1.015 63.2
2088.0 0.990 62.6
2089.0 0.964 62.0
2090.0 0.938 61.4
2091.0 0.912 60.7
2092.0 0.884 60.0
2093.0 0.856 59.2
2094.0 0.827 58.4
2095.0 0.797 57.5
2096.0 0.767 56.5
2097.0 0.736 55.5
2098.0 0.703 54.3
2099.0 0.670 53.1
2100.0 0.637 51.7
2101.0 0.602 50.2
2102.0 0.566 48.5
2103.0 0.530 46.5
2104.0 0.493 44.3
2105.0 0.455 41.7
2106.0 0.417 38.6
2107.0 0.378 34.9
2108.0 0.340 30.3
2109.0 0.303 24.6
2110.0 0.267 17.4
2111.0 0.236 8.0
2112.0 0.210 356.1
2113.0 0.193 341.6
2114.0 0.189 325.3
2115.0 0.197 309.4
2116.0 0.215 295.5
2117.0 0.240 284.1
2118.0 0.268 275.0
2119.0 0.295 267.6
2120.0 0.320 261.4
2121.0 0.341 256.0
2122.0 0.357 251.2
2123.0 0.369 246.8
2124.0 0.378 242.6
2125.0 0.383 238.6
2126.0 0.385 234.6
2127.0 0.385 230.6
2128.0 0.384 226.7
2129.0 0.382 222.7
2130.0 0.379 218.7
2131.0 0.377 214.6
2132.0 0.374 210.4
2133.0 0.372 206.2
2134.0 0.371 202.0
2135.0 0.371 197.7
2136.0 0.371 193.4
2137.0 0.373 189.2
2138.0 0.376 185.0
2139.0 0.380 180.9
2140.0 0.386 176.9
2141.0 0.392 173.1
2142.0 0.400 169.3
2143.0 0.409 165.8
2144.0 0.419 162.3
2145.0 0.430 159.1
2146.0 0.441 156.0
2147.0 0.454 153.1
2148.0 0.467 150.3
2149.0 0.481 147.7
2150.0 0.495 145.2
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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