Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:36:54
WDS:
HU1216AB
WDS ID/Discoverer
P:
351.000
Orbital period (years)
a:
1.01
Semi-major axis (arcseconds)
i:
64.4
Inclination (degrees)
Ω:
277.0
Longitude of ascending node (degrees)
T:
1902.000
Epoch of periastron passage (year)
e:
0.508
Eccentricity
ω:
309.0
Longitude of periastron (degrees)
Start-Year:
1850.0
Year
End-Year:
2200.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
023708.62-111151.1
Epoch-2000 right ascension and declination
WDS-ID:
02371-1112
WDS designation
Discoverer Code:
HU1216AB
Discover designation and components
ADS number:
1990
Aitken Double Star catalog
HD number:
16355
HD catalog number
Hipparcos number:
12204
Hipparcos catalog number
V1:
8.53
Magnitude of the primary
V2:
9.18
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2013
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 0.727 43.4
-------------------------
1850.0 0.913 103.8
1851.0 0.899 104.3
1852.0 0.886 104.8
1853.0 0.872 105.3
1854.0 0.858 105.8
1855.0 0.843 106.3
1856.0 0.828 106.9
1857.0 0.813 107.5
1858.0 0.798 108.1
1859.0 0.782 108.7
1860.0 0.766 109.4
1861.0 0.750 110.0
1862.0 0.733 110.7
1863.0 0.716 111.5
1864.0 0.698 112.3
1865.0 0.681 113.1
1866.0 0.663 113.9
1867.0 0.644 114.9
1868.0 0.626 115.8
1869.0 0.607 116.8
1870.0 0.588 117.9
1871.0 0.568 119.1
1872.0 0.548 120.4
1873.0 0.528 121.7
1874.0 0.508 123.1
1875.0 0.488 124.7
1876.0 0.468 126.4
1877.0 0.447 128.3
1878.0 0.427 130.3
1879.0 0.406 132.6
1880.0 0.386 135.1
1881.0 0.366 137.8
1882.0 0.347 140.9
1883.0 0.328 144.3
1884.0 0.310 148.1
1885.0 0.293 152.4
1886.0 0.277 157.2
1887.0 0.263 162.6
1888.0 0.251 168.5
1889.0 0.242 174.9
1890.0 0.235 181.8
1891.0 0.231 189.0
1892.0 0.231 196.2
1893.0 0.234 203.5
1894.0 0.240 210.4
1895.0 0.248 217.0
1896.0 0.259 223.0
1897.0 0.272 228.6
1898.0 0.287 233.5
1899.0 0.303 238.0
1900.0 0.320 242.0
1901.0 0.337 245.7
1902.0 0.354 248.9
1903.0 0.372 251.9
1904.0 0.390 254.6
1905.0 0.407 257.0
1906.0 0.424 259.3
1907.0 0.440 261.4
1908.0 0.456 263.3
1909.0 0.471 265.1
1910.0 0.486 266.8
1911.0 0.500 268.4
1912.0 0.512 269.9
1913.0 0.525 271.4
1914.0 0.536 272.8
1915.0 0.546 274.1
1916.0 0.556 275.4
1917.0 0.565 276.6
1918.0 0.573 277.8
1919.0 0.581 279.0
1920.0 0.587 280.1
1921.0 0.593 281.2
1922.0 0.599 282.3
1923.0 0.603 283.4
1924.0 0.607 284.5
1925.0 0.610 285.5
1926.0 0.613 286.6
1927.0 0.616 287.6
1928.0 0.617 288.6
1929.0 0.619 289.6
1930.0 0.619 290.7
1931.0 0.620 291.7
1932.0 0.620 292.7
1933.0 0.619 293.7
1934.0 0.619 294.7
1935.0 0.618 295.7
1936.0 0.616 296.8
1937.0 0.615 297.8
1938.0 0.613 298.8
1939.0 0.611 299.9
1940.0 0.608 300.9
1941.0 0.606 302.0
1942.0 0.603 303.0
1943.0 0.600 304.1
1944.0 0.597 305.2
1945.0 0.594 306.3
1946.0 0.591 307.4
1947.0 0.588 308.5
1948.0 0.584 309.7
1949.0 0.581 310.8
1950.0 0.578 312.0
1951.0 0.574 313.1
1952.0 0.571 314.3
1953.0 0.567 315.5
1954.0 0.564 316.7
1955.0 0.560 318.0
1956.0 0.557 319.2
1957.0 0.554 320.5
1958.0 0.550 321.8
1959.0 0.547 323.1
1960.0 0.544 324.4
1961.0 0.541 325.7
1962.0 0.539 327.0
1963.0 0.536 328.4
1964.0 0.533 329.7
1965.0 0.531 331.1
1966.0 0.529 332.5
1967.0 0.526 333.9
1968.0 0.525 335.3
1969.0 0.523 336.7
1970.0 0.521 338.2
1971.0 0.520 339.6
1972.0 0.519 341.0
1973.0 0.518 342.5
1974.0 0.517 343.9
1975.0 0.516 345.4
1976.0 0.516 346.9
1977.0 0.516 348.3
1978.0 0.516 349.8
1979.0 0.516 351.2
1980.0 0.517 352.7
1981.0 0.518 354.2
1982.0 0.519 355.6
1983.0 0.520 357.1
1984.0 0.521 358.5
1985.0 0.523 359.9
1986.0 0.525 1.3
1987.0 0.527 2.7
1988.0 0.529 4.1
1989.0 0.532 5.5
1990.0 0.535 6.9
1991.0 0.538 8.2
1992.0 0.541 9.6
1993.0 0.544 10.9
1994.0 0.548 12.2
1995.0 0.552 13.5
1996.0 0.556 14.8
1997.0 0.560 16.0
1998.0 0.564 17.3
1999.0 0.569 18.5
2000.0 0.573 19.7
2001.0 0.578 20.8
2002.0 0.583 22.0
2003.0 0.588 23.1
2004.0 0.593 24.2
2005.0 0.599 25.3
2006.0 0.604 26.4
2007.0 0.610 27.5
2008.0 0.616 28.5
2009.0 0.622 29.5
2010.0 0.628 30.5
2011.0 0.634 31.5
2012.0 0.640 32.5
2013.0 0.646 33.4
2014.0 0.653 34.3
2015.0 0.659 35.2
2016.0 0.666 36.1
2017.0 0.672 37.0
2018.0 0.679 37.8
2019.0 0.686 38.7
2020.0 0.693 39.5
2021.0 0.699 40.3
2022.0 0.706 41.1
2023.0 0.713 41.9
2024.0 0.720 42.6
2025.0 0.727 43.4
2026.0 0.734 44.1
2027.0 0.742 44.8
2028.0 0.749 45.5
2029.0 0.756 46.2
2030.0 0.763 46.9
2031.0 0.770 47.5
2032.0 0.777 48.2
2033.0 0.785 48.8
2034.0 0.792 49.5
2035.0 0.799 50.1
2036.0 0.807 50.7
2037.0 0.814 51.3
2038.0 0.821 51.9
2039.0 0.828 52.4
2040.0 0.836 53.0
2041.0 0.843 53.5
2042.0 0.850 54.1
2043.0 0.857 54.6
2044.0 0.865 55.1
2045.0 0.872 55.7
2046.0 0.879 56.2
2047.0 0.886 56.7
2048.0 0.893 57.2
2049.0 0.900 57.6
2050.0 0.907 58.1
2051.0 0.915 58.6
2052.0 0.922 59.1
2053.0 0.929 59.5
2054.0 0.936 60.0
2055.0 0.943 60.4
2056.0 0.949 60.8
2057.0 0.956 61.3
2058.0 0.963 61.7
2059.0 0.970 62.1
2060.0 0.977 62.5
2061.0 0.983 62.9
2062.0 0.990 63.3
2063.0 0.997 63.7
2064.0 1.003 64.1
2065.0 1.010 64.5
2066.0 1.016 64.9
2067.0 1.023 65.2
2068.0 1.029 65.6
2069.0 1.035 66.0
2070.0 1.041 66.3
2071.0 1.048 66.7
2072.0 1.054 67.0
2073.0 1.060 67.4
2074.0 1.066 67.7
2075.0 1.072 68.1
2076.0 1.078 68.4
2077.0 1.084 68.8
2078.0 1.089 69.1
2079.0 1.095 69.4
2080.0 1.101 69.7
2081.0 1.106 70.1
2082.0 1.112 70.4
2083.0 1.117 70.7
2084.0 1.122 71.0
2085.0 1.128 71.3
2086.0 1.133 71.6
2087.0 1.138 71.9
2088.0 1.143 72.2
2089.0 1.148 72.5
2090.0 1.153 72.8
2091.0 1.158 73.1
2092.0 1.162 73.4
2093.0 1.167 73.7
2094.0 1.172 73.9
2095.0 1.176 74.2
2096.0 1.181 74.5
2097.0 1.185 74.8
2098.0 1.189 75.1
2099.0 1.193 75.3
2100.0 1.197 75.6
2101.0 1.201 75.9
2102.0 1.205 76.2
2103.0 1.209 76.4
2104.0 1.213 76.7
2105.0 1.216 76.9
2106.0 1.220 77.2
2107.0 1.223 77.5
2108.0 1.227 77.7
2109.0 1.230 78.0
2110.0 1.233 78.2
2111.0 1.236 78.5
2112.0 1.239 78.8
2113.0 1.242 79.0
2114.0 1.244 79.3
2115.0 1.247 79.5
2116.0 1.250 79.8
2117.0 1.252 80.0
2118.0 1.254 80.3
2119.0 1.256 80.5
2120.0 1.258 80.8
2121.0 1.260 81.0
2122.0 1.262 81.2
2123.0 1.264 81.5
2124.0 1.266 81.7
2125.0 1.267 82.0
2126.0 1.269 82.2
2127.0 1.270 82.5
2128.0 1.271 82.7
2129.0 1.272 82.9
2130.0 1.273 83.2
2131.0 1.274 83.4
2132.0 1.274 83.7
2133.0 1.275 83.9
2134.0 1.275 84.1
2135.0 1.276 84.4
2136.0 1.276 84.6
2137.0 1.276 84.9
2138.0 1.276 85.1
2139.0 1.275 85.3
2140.0 1.275 85.6
2141.0 1.274 85.8
2142.0 1.274 86.1
2143.0 1.273 86.3
2144.0 1.272 86.5
2145.0 1.271 86.8
2146.0 1.270 87.0
2147.0 1.268 87.3
2148.0 1.267 87.5
2149.0 1.265 87.7
2150.0 1.263 88.0
2151.0 1.261 88.2
2152.0 1.259 88.5
2153.0 1.257 88.7
2154.0 1.254 89.0
2155.0 1.252 89.2
2156.0 1.249 89.5
2157.0 1.246 89.7
2158.0 1.243 90.0
2159.0 1.239 90.2
2160.0 1.236 90.5
2161.0 1.232 90.7
2162.0 1.228 91.0
2163.0 1.224 91.2
2164.0 1.220 91.5
2165.0 1.216 91.8
2166.0 1.211 92.0
2167.0 1.207 92.3
2168.0 1.202 92.6
2169.0 1.196 92.8
2170.0 1.191 93.1
2171.0 1.186 93.4
2172.0 1.180 93.7
2173.0 1.174 94.0
2174.0 1.168 94.2
2175.0 1.161 94.5
2176.0 1.155 94.8
2177.0 1.148 95.1
2178.0 1.141 95.4
2179.0 1.134 95.7
2180.0 1.126 96.0
2181.0 1.119 96.3
2182.0 1.111 96.6
2183.0 1.103 96.9
2184.0 1.094 97.3
2185.0 1.086 97.6
2186.0 1.077 97.9
2187.0 1.068 98.3
2188.0 1.059 98.6
2189.0 1.049 99.0
2190.0 1.039 99.3
2191.0 1.029 99.7
2192.0 1.019 100.1
2193.0 1.008 100.4
2194.0 0.997 100.8
2195.0 0.986 101.2
2196.0 0.974 101.6
2197.0 0.962 102.0
2198.0 0.950 102.5
2199.0 0.938 102.9
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 .
www.stella-vega.de