Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:08:42
WDS:
BU146
WDS ID/Discoverer
P:
198.120
Orbital period (years)
a:
1.166
Semi-major axis (arcseconds)
i:
65.3
Inclination (degrees)
Ω:
220.6
Longitude of ascending node (degrees)
T:
2198.940
Epoch of periastron passage (year)
e:
0.852
Eccentricity
ω:
271.0
Longitude of periastron (degrees)
Start-Year:
1926.0
Year
End-Year:
2124.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
194706.75-195250.4
Epoch-2000 right ascension and declination
WDS-ID:
19471-1953
WDS designation
Discoverer Code:
BU146
Discover designation and components
ADS number:
12909
Aitken Double Star catalog
HD number:
186752
HD catalog number
Hipparcos number:
97348
Hipparcos catalog number
V1:
8.61
Magnitude of the primary
V2:
9.52
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2018
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 0.739 257.4
-------------------------
1926.0 0.904 329.0
1927.0 0.904 329.7
1928.0 0.903 330.3
1929.0 0.903 331.0
1930.0 0.902 331.6
1931.0 0.902 332.3
1932.0 0.901 333.0
1933.0 0.901 333.6
1934.0 0.900 334.3
1935.0 0.899 335.0
1936.0 0.898 335.6
1937.0 0.897 336.3
1938.0 0.896 337.0
1939.0 0.895 337.7
1940.0 0.894 338.3
1941.0 0.893 339.0
1942.0 0.892 339.7
1943.0 0.891 340.4
1944.0 0.889 341.0
1945.0 0.888 341.7
1946.0 0.886 342.4
1947.0 0.885 343.1
1948.0 0.883 343.8
1949.0 0.881 344.5
1950.0 0.879 345.2
1951.0 0.877 345.9
1952.0 0.875 346.6
1953.0 0.873 347.3
1954.0 0.870 348.0
1955.0 0.868 348.7
1956.0 0.865 349.5
1957.0 0.862 350.2
1958.0 0.859 350.9
1959.0 0.856 351.6
1960.0 0.853 352.4
1961.0 0.849 353.1
1962.0 0.846 353.9
1963.0 0.842 354.6
1964.0 0.838 355.4
1965.0 0.834 356.2
1966.0 0.829 357.0
1967.0 0.824 357.8
1968.0 0.819 358.6
1969.0 0.814 359.4
1970.0 0.809 0.2
1971.0 0.803 1.0
1972.0 0.797 1.9
1973.0 0.790 2.7
1974.0 0.783 3.6
1975.0 0.776 4.5
1976.0 0.768 5.4
1977.0 0.760 6.3
1978.0 0.751 7.3
1979.0 0.742 8.2
1980.0 0.732 9.2
1981.0 0.722 10.2
1982.0 0.711 11.3
1983.0 0.699 12.4
1984.0 0.686 13.5
1985.0 0.673 14.7
1986.0 0.658 15.9
1987.0 0.642 17.2
1988.0 0.625 18.5
1989.0 0.606 20.0
1990.0 0.586 21.5
1991.0 0.563 23.1
1992.0 0.538 24.9
1993.0 0.510 26.9
1994.0 0.478 29.1
1995.0 0.442 31.6
1996.0 0.399 34.7
1997.0 0.349 38.5
1998.0 0.288 43.9
1999.0 0.212 52.6
2000.0 0.121 73.6
2001.0 0.076 150.9
2002.0 0.158 199.4
2003.0 0.243 213.3
2004.0 0.312 220.3
2005.0 0.367 225.0
2006.0 0.412 228.6
2007.0 0.450 231.5
2008.0 0.483 234.0
2009.0 0.511 236.2
2010.0 0.537 238.1
2011.0 0.559 239.9
2012.0 0.580 241.6
2013.0 0.599 243.2
2014.0 0.616 244.6
2015.0 0.631 246.0
2016.0 0.646 247.3
2017.0 0.659 248.6
2018.0 0.671 249.8
2019.0 0.683 251.0
2020.0 0.694 252.1
2021.0 0.704 253.3
2022.0 0.713 254.3
2023.0 0.722 255.4
2024.0 0.731 256.4
2025.0 0.739 257.4
2026.0 0.746 258.4
2027.0 0.753 259.3
2028.0 0.760 260.3
2029.0 0.766 261.2
2030.0 0.772 262.1
2031.0 0.778 263.0
2032.0 0.783 263.9
2033.0 0.788 264.8
2034.0 0.793 265.7
2035.0 0.798 266.5
2036.0 0.803 267.4
2037.0 0.807 268.2
2038.0 0.811 269.0
2039.0 0.815 269.8
2040.0 0.819 270.6
2041.0 0.822 271.4
2042.0 0.826 272.2
2043.0 0.829 273.0
2044.0 0.832 273.8
2045.0 0.835 274.6
2046.0 0.838 275.4
2047.0 0.841 276.1
2048.0 0.843 276.9
2049.0 0.846 277.7
2050.0 0.848 278.4
2051.0 0.850 279.2
2052.0 0.853 279.9
2053.0 0.855 280.6
2054.0 0.857 281.4
2055.0 0.859 282.1
2056.0 0.861 282.8
2057.0 0.863 283.6
2058.0 0.865 284.3
2059.0 0.866 285.0
2060.0 0.868 285.7
2061.0 0.870 286.5
2062.0 0.871 287.2
2063.0 0.873 287.9
2064.0 0.874 288.6
2065.0 0.875 289.3
2066.0 0.877 290.0
2067.0 0.878 290.7
2068.0 0.879 291.4
2069.0 0.881 292.1
2070.0 0.882 292.8
2071.0 0.883 293.5
2072.0 0.884 294.2
2073.0 0.885 294.9
2074.0 0.886 295.6
2075.0 0.887 296.2
2076.0 0.888 296.9
2077.0 0.889 297.6
2078.0 0.890 298.3
2079.0 0.891 299.0
2080.0 0.891 299.7
2081.0 0.892 300.3
2082.0 0.893 301.0
2083.0 0.894 301.7
2084.0 0.895 302.4
2085.0 0.895 303.1
2086.0 0.896 303.7
2087.0 0.897 304.4
2088.0 0.897 305.1
2089.0 0.898 305.7
2090.0 0.898 306.4
2091.0 0.899 307.1
2092.0 0.899 307.8
2093.0 0.900 308.4
2094.0 0.901 309.1
2095.0 0.901 309.8
2096.0 0.901 310.4
2097.0 0.902 311.1
2098.0 0.902 311.7
2099.0 0.903 312.4
2100.0 0.903 313.1
2101.0 0.903 313.7
2102.0 0.904 314.4
2103.0 0.904 315.1
2104.0 0.904 315.7
2105.0 0.905 316.4
2106.0 0.905 317.0
2107.0 0.905 317.7
2108.0 0.905 318.4
2109.0 0.905 319.0
2110.0 0.905 319.7
2111.0 0.906 320.3
2112.0 0.906 321.0
2113.0 0.906 321.7
2114.0 0.906 322.3
2115.0 0.906 323.0
2116.0 0.906 323.6
2117.0 0.906 324.3
2118.0 0.905 324.9
2119.0 0.905 325.6
2120.0 0.905 326.3
2121.0 0.905 326.9
2122.0 0.905 327.6
2123.0 0.904 328.2
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 .
www.stella-vega.de