Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:08:42

Orbital Elements for BU146
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

Further data from the WDS Sixth Catalog of Orbits for BU146
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

Double Star Orbit for BU146



WDS 6th Orbit including measures of BU146

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of BU146
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






Disclaimer
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.


Acknowledgements
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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