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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:38:40
WDS:
HU158
WDS ID/Discoverer
P:
260.300
Orbital period (years)
a:
0.306
Semi-major axis (arcseconds)
i:
108.7
Inclination (degrees)
Ω:
137.0
Longitude of ascending node (degrees)
T:
2001.600
Epoch of periastron passage (year)
e:
0.717
Eccentricity
ω:
181.7
Longitude of periastron (degrees)
Start-Year:
1895.0
Year
End-Year:
2155.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
162706.46-120528.0
Epoch-2000 right ascension and declination
WDS-ID:
16271-1205
WDS designation
Discoverer Code:
HU158
Discover designation and components
ADS number:
10064
Aitken Double Star catalog
HD number:
148246
HD catalog number
Hipparcos number:
80576
Hipparcos catalog number
V1:
9.5
Magnitude of the primary
V2:
9.7
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2022
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.142 163.6
-------------------------
1895.0 0.507 133.9
1896.0 0.505 133.8
1897.0 0.504 133.7
1898.0 0.502 133.6
1899.0 0.501 133.5
1900.0 0.499 133.3
1901.0 0.497 133.2
1902.0 0.495 133.1
1903.0 0.493 133.0
1904.0 0.491 132.9
1905.0 0.489 132.8
1906.0 0.487 132.6
1907.0 0.485 132.5
1908.0 0.483 132.4
1909.0 0.480 132.3
1910.0 0.478 132.1
1911.0 0.475 132.0
1912.0 0.473 131.9
1913.0 0.470 131.8
1914.0 0.468 131.6
1915.0 0.465 131.5
1916.0 0.462 131.4
1917.0 0.459 131.2
1918.0 0.457 131.1
1919.0 0.454 130.9
1920.0 0.450 130.8
1921.0 0.447 130.7
1922.0 0.444 130.5
1923.0 0.441 130.4
1924.0 0.438 130.2
1925.0 0.434 130.1
1926.0 0.431 129.9
1927.0 0.427 129.7
1928.0 0.424 129.6
1929.0 0.420 129.4
1930.0 0.416 129.3
1931.0 0.412 129.1
1932.0 0.409 128.9
1933.0 0.405 128.7
1934.0 0.401 128.6
1935.0 0.396 128.4
1936.0 0.392 128.2
1937.0 0.388 128.0
1938.0 0.384 127.8
1939.0 0.379 127.6
1940.0 0.375 127.4
1941.0 0.370 127.2
1942.0 0.365 127.0
1943.0 0.361 126.8
1944.0 0.356 126.5
1945.0 0.351 126.3
1946.0 0.346 126.1
1947.0 0.341 125.8
1948.0 0.336 125.6
1949.0 0.330 125.3
1950.0 0.325 125.0
1951.0 0.319 124.8
1952.0 0.314 124.5
1953.0 0.308 124.2
1954.0 0.303 123.9
1955.0 0.297 123.5
1956.0 0.291 123.2
1957.0 0.285 122.9
1958.0 0.279 122.5
1959.0 0.272 122.1
1960.0 0.266 121.7
1961.0 0.260 121.3
1962.0 0.253 120.9
1963.0 0.246 120.4
1964.0 0.240 119.9
1965.0 0.233 119.4
1966.0 0.226 118.8
1967.0 0.219 118.2
1968.0 0.212 117.6
1969.0 0.204 116.9
1970.0 0.197 116.2
1971.0 0.190 115.5
1972.0 0.182 114.6
1973.0 0.174 113.7
1974.0 0.166 112.7
1975.0 0.159 111.6
1976.0 0.151 110.4
1977.0 0.142 109.0
1978.0 0.134 107.5
1979.0 0.126 105.8
1980.0 0.118 103.9
1981.0 0.109 101.6
1982.0 0.101 99.0
1983.0 0.093 95.9
1984.0 0.085 92.3
1985.0 0.077 87.8
1986.0 0.070 82.4
1987.0 0.063 75.8
1988.0 0.057 67.6
1989.0 0.052 57.7
1990.0 0.049 46.1
1991.0 0.047 33.4
1992.0 0.048 20.6
1993.0 0.051 8.7
1994.0 0.055 358.4
1995.0 0.061 349.8
1996.0 0.066 342.6
1997.0 0.072 336.5
1998.0 0.078 331.4
1999.0 0.082 326.8
2000.0 0.085 322.7
2001.0 0.087 318.8
2002.0 0.086 314.9
2003.0 0.084 310.9
2004.0 0.080 306.7
2005.0 0.075 301.9
2006.0 0.070 296.4
2007.0 0.063 289.8
2008.0 0.057 281.8
2009.0 0.052 272.1
2010.0 0.048 260.3
2011.0 0.046 246.9
2012.0 0.046 233.0
2013.0 0.048 219.8
2014.0 0.053 208.4
2015.0 0.059 199.1
2016.0 0.066 191.7
2017.0 0.074 185.8
2018.0 0.082 181.0
2019.0 0.090 177.1
2020.0 0.099 173.8
2021.0 0.108 171.1
2022.0 0.116 168.8
2023.0 0.125 166.8
2024.0 0.134 165.1
2025.0 0.142 163.6
2026.0 0.150 162.2
2027.0 0.159 161.0
2028.0 0.167 159.9
2029.0 0.175 158.9
2030.0 0.183 158.0
2031.0 0.191 157.2
2032.0 0.199 156.4
2033.0 0.206 155.7
2034.0 0.214 155.1
2035.0 0.221 154.5
2036.0 0.228 153.9
2037.0 0.235 153.4
2038.0 0.242 152.8
2039.0 0.249 152.4
2040.0 0.256 151.9
2041.0 0.263 151.5
2042.0 0.269 151.1
2043.0 0.276 150.7
2044.0 0.282 150.3
2045.0 0.288 150.0
2046.0 0.294 149.6
2047.0 0.300 149.3
2048.0 0.306 149.0
2049.0 0.312 148.7
2050.0 0.318 148.4
2051.0 0.323 148.1
2052.0 0.329 147.8
2053.0 0.334 147.6
2054.0 0.340 147.3
2055.0 0.345 147.1
2056.0 0.350 146.8
2057.0 0.355 146.6
2058.0 0.360 146.4
2059.0 0.365 146.1
2060.0 0.370 145.9
2061.0 0.374 145.7
2062.0 0.379 145.5
2063.0 0.383 145.3
2064.0 0.388 145.1
2065.0 0.392 144.9
2066.0 0.396 144.7
2067.0 0.401 144.6
2068.0 0.405 144.4
2069.0 0.409 144.2
2070.0 0.413 144.0
2071.0 0.417 143.9
2072.0 0.420 143.7
2073.0 0.424 143.5
2074.0 0.428 143.4
2075.0 0.431 143.2
2076.0 0.435 143.1
2077.0 0.438 142.9
2078.0 0.442 142.8
2079.0 0.445 142.6
2080.0 0.448 142.5
2081.0 0.451 142.3
2082.0 0.454 142.2
2083.0 0.457 142.0
2084.0 0.460 141.9
2085.0 0.463 141.8
2086.0 0.466 141.6
2087.0 0.469 141.5
2088.0 0.471 141.4
2089.0 0.474 141.2
2090.0 0.476 141.1
2091.0 0.479 141.0
2092.0 0.481 140.9
2093.0 0.483 140.7
2094.0 0.486 140.6
2095.0 0.488 140.5
2096.0 0.490 140.4
2097.0 0.492 140.3
2098.0 0.494 140.1
2099.0 0.496 140.0
2100.0 0.498 139.9
2101.0 0.500 139.8
2102.0 0.501 139.7
2103.0 0.503 139.6
2104.0 0.505 139.4
2105.0 0.506 139.3
2106.0 0.508 139.2
2107.0 0.509 139.1
2108.0 0.510 139.0
2109.0 0.512 138.9
2110.0 0.513 138.8
2111.0 0.514 138.7
2112.0 0.515 138.6
2113.0 0.516 138.4
2114.0 0.517 138.3
2115.0 0.518 138.2
2116.0 0.519 138.1
2117.0 0.520 138.0
2118.0 0.521 137.9
2119.0 0.521 137.8
2120.0 0.522 137.7
2121.0 0.523 137.6
2122.0 0.523 137.5
2123.0 0.524 137.4
2124.0 0.524 137.3
2125.0 0.524 137.2
2126.0 0.525 137.1
2127.0 0.525 137.0
2128.0 0.525 136.8
2129.0 0.525 136.7
2130.0 0.525 136.6
2131.0 0.525 136.5
2132.0 0.525 136.4
2133.0 0.525 136.3
2134.0 0.525 136.2
2135.0 0.525 136.1
2136.0 0.524 136.0
2137.0 0.524 135.9
2138.0 0.524 135.8
2139.0 0.523 135.7
2140.0 0.523 135.6
2141.0 0.522 135.5
2142.0 0.521 135.4
2143.0 0.521 135.3
2144.0 0.520 135.2
2145.0 0.519 135.1
2146.0 0.518 134.9
2147.0 0.517 134.8
2148.0 0.516 134.7
2149.0 0.515 134.6
2150.0 0.514 134.5
2151.0 0.513 134.4
2152.0 0.512 134.3
2153.0 0.510 134.2
2154.0 0.509 134.1
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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