Double Star Calculator - Orbit

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: 1925.94 Year
End-Year: 2124.06 Year
Epoch: 2026.5 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
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: USN2019 Reference

Double Star Orbit for BU146



WDS 6th Orbit including measures of BU146

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of BU146
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.750   258.87
--------------------------
1925.94    0.904   328.95
1926.94    0.904   329.61
1927.94    0.903   330.27
1928.94    0.903   330.94
1929.94    0.902   331.60
1930.94    0.902   332.26
1931.94    0.901   332.93
1932.94    0.901   333.59
1933.94    0.900   334.26
1934.94    0.899   334.93
1935.94    0.898   335.60
1936.94    0.897   336.27
1937.94    0.896   336.94
1938.94    0.895   337.61
1939.94    0.894   338.29
1940.94    0.893   338.96
1941.94    0.892   339.64
1942.94    0.891   340.32
1943.94    0.889   341.01
1944.94    0.888   341.69
1945.94    0.886   342.38
1946.94    0.885   343.07
1947.94    0.883   343.76
1948.94    0.881   344.45
1949.94    0.879   345.15
1950.94    0.877   345.85
1951.94    0.875   346.55
1952.94    0.873   347.26
1953.94    0.870   347.97
1954.94    0.868   348.69
1955.94    0.865   349.41
1956.94    0.862   350.13
1957.94    0.859   350.86
1958.94    0.856   351.60
1959.94    0.853   352.34
1960.94    0.850   353.08
1961.94    0.846   353.84
1962.94    0.842   354.59
1963.94    0.838   355.36
1964.94    0.834   356.13
1965.94    0.829   356.91
1966.94    0.825   357.71
1967.94    0.820   358.50
1968.94    0.814   359.31
1969.94    0.809     0.13
1970.94    0.803     0.97
1971.94    0.797     1.81
1972.94    0.791     2.67
1973.94    0.784     3.54
1974.94    0.776     4.43
1975.94    0.769     5.33
1976.94    0.761     6.26
1977.94    0.752     7.20
1978.94    0.743     8.17
1979.94    0.733     9.16
1980.94    0.723    10.18
1981.94    0.712    11.23
1982.94    0.700    12.32
1983.94    0.687    13.44
1984.94    0.674    14.61
1985.94    0.659    15.83
1986.94    0.643    17.10
1987.94    0.626    18.44
1988.94    0.607    19.86
1989.94    0.587    21.38
1990.94    0.564    23.01
1991.94    0.539    24.79
1992.94    0.512    26.74
1993.94    0.480    28.94
1994.94    0.444    31.47
1995.94    0.402    34.49
1996.94    0.353    38.28
1997.94    0.292    43.50
1998.94    0.217    51.94
1999.94    0.126    71.51
2000.94    0.074   145.18
2001.94    0.152   198.06
2002.94    0.239   212.71
2003.94    0.308   219.98
2004.94    0.364   224.78
2005.94    0.409   228.39
2006.94    0.448   231.34
2007.94    0.481   233.84
2008.94    0.510   236.04
2009.94    0.535   238.02
2010.94    0.558   239.83
2011.94    0.579   241.50
2012.94    0.598   243.06
2013.94    0.615   244.53
2014.94    0.630   245.93
2015.94    0.645   247.26
2016.94    0.658   248.53
2017.94    0.671   249.75
2018.94    0.682   250.94
2019.94    0.693   252.08
2020.94    0.703   253.19
2021.94    0.713   254.26
2022.94    0.722   255.31
2023.94    0.730   256.34
2024.94    0.738   257.34
2025.94    0.746   258.32
2026.94    0.753   259.29
2027.94    0.759   260.23
2028.94    0.766   261.16
2029.94    0.772   262.08
2030.94    0.778   262.98
2031.94    0.783   263.86
2032.94    0.788   264.74
2033.94    0.793   265.60
2034.94    0.798   266.46
2035.94    0.802   267.30
2036.94    0.807   268.14
2037.94    0.811   268.96
2038.94    0.815   269.78
2039.94    0.818   270.59
2040.94    0.822   271.40
2041.94    0.825   272.19
2042.94    0.829   272.98
2043.94    0.832   273.77
2044.94    0.835   274.55
2045.94    0.838   275.32
2046.94    0.840   276.09
2047.94    0.843   276.85
2048.94    0.846   277.61
2049.94    0.848   278.36
2050.94    0.850   279.11
2051.94    0.853   279.86
2052.94    0.855   280.60
2053.94    0.857   281.34
2054.94    0.859   282.07
2055.94    0.861   282.80
2056.94    0.863   283.53
2057.94    0.864   284.26
2058.94    0.866   284.98
2059.94    0.868   285.70
2060.94    0.869   286.41
2061.94    0.871   287.13
2062.94    0.873   287.84
2063.94    0.874   288.55
2064.94    0.875   289.25
2065.94    0.877   289.96
2066.94    0.878   290.66
2067.94    0.879   291.36
2068.94    0.880   292.06
2069.94    0.882   292.75
2070.94    0.883   293.45
2071.94    0.884   294.14
2072.94    0.885   294.83
2073.94    0.886   295.52
2074.94    0.887   296.21
2075.94    0.888   296.89
2076.94    0.889   297.58
2077.94    0.890   298.26
2078.94    0.891   298.95
2079.94    0.891   299.63
2080.94    0.892   300.31
2081.94    0.893   300.98
2082.94    0.894   301.66
2083.94    0.894   302.34
2084.94    0.895   303.01
2085.94    0.896   303.69
2086.94    0.897   304.36
2087.94    0.897   305.03
2088.94    0.898   305.70
2089.94    0.898   306.37
2090.94    0.899   307.04
2091.94    0.899   307.71
2092.94    0.900   308.38
2093.94    0.900   309.04
2094.94    0.901   309.71
2095.94    0.901   310.38
2096.94    0.902   311.04
2097.94    0.902   311.71
2098.94    0.903   312.37
2099.94    0.903   313.03
2100.94    0.903   313.69
2101.94    0.904   314.36
2102.94    0.904   315.02
2103.94    0.904   315.68
2104.94    0.905   316.34
2105.94    0.905   317.00
2106.94    0.905   317.66
2107.94    0.905   318.32
2108.94    0.905   318.98
2109.94    0.905   319.64
2110.94    0.906   320.30
2111.94    0.906   320.96
2112.94    0.906   321.62
2113.94    0.906   322.27
2114.94    0.906   322.93
2115.94    0.906   323.59
2116.94    0.906   324.25
2117.94    0.905   324.91
2118.94    0.905   325.57
2119.94    0.905   326.23
2120.94    0.905   326.89
2121.94    0.905   327.55
2122.94    0.904   328.21
2123.94    0.904   328.87






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:08:40



www.stella-vega.de