Double Star Calculator - Orbit

Orbital Elements for B188
WDS: B188 WDS ID/Discoverer
P: 293.200 Orbital period (years)
a: 0.387 Semi-major axis (arcseconds)
i: 46.3 Inclination (degrees)
Ω: 22.3 Longitude of ascending node (degrees)
T: 1983.850 Epoch of periastron passage (year)
e: 0.838 Eccentricity
ω: 175.4 Longitude of periastron (degrees)
Start-Year: 1878.4 Year
End-Year: 2171.6 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for B188
Position: 094528.20-282419.6 Epoch-2000 right ascension and declination
WDS-ID: 09455-2824 WDS designation
Discoverer Code: B188 Discover designation and components
ADS number: 7510 Aitken Double Star catalog
HD number: 84566 HD catalog number
Hipparcos number: 47878 Hipparcos catalog number
V1: 9.2 Magnitude of the primary
V2: 9.7 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 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: Tok2023a Reference

Double Star Orbit for B188



WDS 6th Orbit including measures of B188

-- 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 B188
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.406   358.36
--------------------------
1878.40    0.673    24.97
1879.40    0.671    25.13
1880.40    0.669    25.28
1881.40    0.666    25.44
1882.40    0.664    25.59
1883.40    0.662    25.75
1884.40    0.660    25.91
1885.40    0.657    26.07
1886.40    0.655    26.23
1887.40    0.653    26.39
1888.40    0.650    26.55
1889.40    0.648    26.72
1890.40    0.645    26.89
1891.40    0.642    27.05
1892.40    0.640    27.22
1893.40    0.637    27.39
1894.40    0.634    27.56
1895.40    0.631    27.74
1896.40    0.628    27.91
1897.40    0.625    28.09
1898.40    0.622    28.27
1899.40    0.619    28.45
1900.40    0.616    28.63
1901.40    0.612    28.81
1902.40    0.609    29.00
1903.40    0.606    29.19
1904.40    0.602    29.38
1905.40    0.599    29.57
1906.40    0.595    29.76
1907.40    0.592    29.96
1908.40    0.588    30.16
1909.40    0.584    30.36
1910.40    0.580    30.56
1911.40    0.576    30.77
1912.40    0.572    30.98
1913.40    0.568    31.20
1914.40    0.564    31.41
1915.40    0.560    31.63
1916.40    0.556    31.85
1917.40    0.551    32.08
1918.40    0.547    32.31
1919.40    0.542    32.54
1920.40    0.538    32.78
1921.40    0.533    33.02
1922.40    0.528    33.27
1923.40    0.523    33.52
1924.40    0.519    33.78
1925.40    0.514    34.04
1926.40    0.509    34.30
1927.40    0.503    34.57
1928.40    0.498    34.85
1929.40    0.493    35.13
1930.40    0.487    35.42
1931.40    0.482    35.72
1932.40    0.476    36.02
1933.40    0.471    36.33
1934.40    0.465    36.64
1935.40    0.459    36.97
1936.40    0.453    37.30
1937.40    0.447    37.64
1938.40    0.441    38.00
1939.40    0.434    38.36
1940.40    0.428    38.73
1941.40    0.422    39.12
1942.40    0.415    39.51
1943.40    0.408    39.92
1944.40    0.401    40.34
1945.40    0.394    40.78
1946.40    0.387    41.24
1947.40    0.380    41.71
1948.40    0.373    42.20
1949.40    0.365    42.71
1950.40    0.358    43.24
1951.40    0.350    43.79
1952.40    0.342    44.37
1953.40    0.334    44.98
1954.40    0.326    45.61
1955.40    0.317    46.29
1956.40    0.309    46.99
1957.40    0.300    47.74
1958.40    0.291    48.53
1959.40    0.282    49.38
1960.40    0.273    50.27
1961.40    0.264    51.24
1962.40    0.254    52.27
1963.40    0.244    53.39
1964.40    0.234    54.60
1965.40    0.224    55.92
1966.40    0.214    57.36
1967.40    0.203    58.96
1968.40    0.192    60.73
1969.40    0.181    62.72
1970.40    0.170    64.97
1971.40    0.159    67.54
1972.40    0.147    70.51
1973.40    0.135    74.00
1974.40    0.123    78.16
1975.40    0.111    83.21
1976.40    0.100    89.44
1977.40    0.089    97.29
1978.40    0.078   107.27
1979.40    0.070   119.96
1980.40    0.064   135.63
1981.40    0.061   153.68
1982.40    0.061   172.62
1983.40    0.062   191.08
1984.40    0.063   208.77
1985.40    0.064   226.02
1986.40    0.065   242.91
1987.40    0.068   258.86
1988.40    0.073   273.09
1989.40    0.080   285.16
1990.40    0.088   295.08
1991.40    0.098   303.16
1992.40    0.108   309.76
1993.40    0.118   315.21
1994.40    0.129   319.75
1995.40    0.140   323.60
1996.40    0.151   326.89
1997.40    0.161   329.75
1998.40    0.172   332.25
1999.40    0.182   334.47
2000.40    0.192   336.45
2001.40    0.202   338.23
2002.40    0.212   339.84
2003.40    0.222   341.31
2004.40    0.232   342.65
2005.40    0.241   343.89
2006.40    0.250   345.04
2007.40    0.260   346.11
2008.40    0.268   347.10
2009.40    0.277   348.03
2010.40    0.286   348.91
2011.40    0.294   349.73
2012.40    0.303   350.51
2013.40    0.311   351.24
2014.40    0.319   351.94
2015.40    0.327   352.61
2016.40    0.335   353.24
2017.40    0.342   353.85
2018.40    0.350   354.43
2019.40    0.357   354.98
2020.40    0.365   355.51
2021.40    0.372   356.03
2022.40    0.379   356.52
2023.40    0.386   356.99
2024.40    0.393   357.45
2025.40    0.399   357.89
2026.40    0.406   358.32
2027.40    0.412   358.73
2028.40    0.419   359.14
2029.40    0.425   359.53
2030.40    0.431   359.90
2031.40    0.437     0.27
2032.40    0.443     0.63
2033.40    0.449     0.98
2034.40    0.455     1.32
2035.40    0.461     1.65
2036.40    0.467     1.97
2037.40    0.472     2.28
2038.40    0.478     2.59
2039.40    0.483     2.89
2040.40    0.488     3.19
2041.40    0.494     3.47
2042.40    0.499     3.75
2043.40    0.504     4.03
2044.40    0.509     4.30
2045.40    0.514     4.57
2046.40    0.519     4.83
2047.40    0.523     5.08
2048.40    0.528     5.33
2049.40    0.533     5.58
2050.40    0.537     5.82
2051.40    0.542     6.06
2052.40    0.546     6.29
2053.40    0.550     6.53
2054.40    0.555     6.75
2055.40    0.559     6.98
2056.40    0.563     7.20
2057.40    0.567     7.41
2058.40    0.571     7.63
2059.40    0.575     7.84
2060.40    0.579     8.05
2061.40    0.583     8.25
2062.40    0.586     8.46
2063.40    0.590     8.66
2064.40    0.594     8.85
2065.40    0.597     9.05
2066.40    0.601     9.24
2067.40    0.604     9.43
2068.40    0.607     9.62
2069.40    0.611     9.81
2070.40    0.614    10.00
2071.40    0.617    10.18
2072.40    0.620    10.36
2073.40    0.623    10.54
2074.40    0.626    10.72
2075.40    0.629    10.89
2076.40    0.632    11.07
2077.40    0.635    11.24
2078.40    0.638    11.41
2079.40    0.640    11.58
2080.40    0.643    11.75
2081.40    0.646    11.92
2082.40    0.648    12.08
2083.40    0.651    12.25
2084.40    0.653    12.41
2085.40    0.656    12.57
2086.40    0.658    12.73
2087.40    0.660    12.89
2088.40    0.662    13.05
2089.40    0.665    13.21
2090.40    0.667    13.36
2091.40    0.669    13.52
2092.40    0.671    13.67
2093.40    0.673    13.83
2094.40    0.675    13.98
2095.40    0.676    14.13
2096.40    0.678    14.28
2097.40    0.680    14.43
2098.40    0.682    14.58
2099.40    0.683    14.73
2100.40    0.685    14.88
2101.40    0.687    15.03
2102.40    0.688    15.17
2103.40    0.690    15.32
2104.40    0.691    15.47
2105.40    0.692    15.61
2106.40    0.694    15.76
2107.40    0.695    15.90
2108.40    0.696    16.04
2109.40    0.697    16.19
2110.40    0.698    16.33
2111.40    0.699    16.47
2112.40    0.700    16.61
2113.40    0.701    16.75
2114.40    0.702    16.89
2115.40    0.703    17.03
2116.40    0.704    17.17
2117.40    0.705    17.31
2118.40    0.705    17.45
2119.40    0.706    17.59
2120.40    0.707    17.73
2121.40    0.707    17.87
2122.40    0.708    18.01
2123.40    0.708    18.15
2124.40    0.709    18.29
2125.40    0.709    18.42
2126.40    0.709    18.56
2127.40    0.710    18.70
2128.40    0.710    18.84
2129.40    0.710    18.97
2130.40    0.710    19.11
2131.40    0.710    19.25
2132.40    0.710    19.39
2133.40    0.710    19.52
2134.40    0.710    19.66
2135.40    0.710    19.80
2136.40    0.710    19.94
2137.40    0.710    20.07
2138.40    0.709    20.21
2139.40    0.709    20.35
2140.40    0.709    20.49
2141.40    0.708    20.63
2142.40    0.708    20.76
2143.40    0.707    20.90
2144.40    0.707    21.04
2145.40    0.706    21.18
2146.40    0.706    21.32
2147.40    0.705    21.46
2148.40    0.704    21.60
2149.40    0.703    21.74
2150.40    0.702    21.88
2151.40    0.702    22.02
2152.40    0.701    22.16
2153.40    0.700    22.30
2154.40    0.699    22.44
2155.40    0.697    22.59
2156.40    0.696    22.73
2157.40    0.695    22.87
2158.40    0.694    23.02
2159.40    0.693    23.16
2160.40    0.691    23.30
2161.40    0.690    23.45
2162.40    0.688    23.60
2163.40    0.687    23.74
2164.40    0.685    23.89
2165.40    0.684    24.04
2166.40    0.682    24.19
2167.40    0.680    24.34
2168.40    0.679    24.49
2169.40    0.677    24.64
2170.40    0.675    24.79
2171.40    0.673    24.94






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 16:20:38



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