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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:54:01

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:	1879.0	Year
End-Year:	2171.0	Year
Epoch:	2025.0	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' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B188

WDS 6th Orbit including measures of B188

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

Ephemeris of B188

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.397    357.7
-------------------------
1879.0     0.671     25.1
1880.0     0.669     25.2
1881.0     0.667     25.4
1882.0     0.665     25.5
1883.0     0.663     25.7
1884.0     0.661     25.8
1885.0     0.658     26.0
1886.0     0.656     26.2
1887.0     0.654     26.3
1888.0     0.651     26.5
1889.0     0.649     26.7
1890.0     0.646     26.8
1891.0     0.643     27.0
1892.0     0.641     27.2
1893.0     0.638     27.3
1894.0     0.635     27.5
1895.0     0.632     27.7
1896.0     0.629     27.8
1897.0     0.626     28.0
1898.0     0.623     28.2
1899.0     0.620     28.4
1900.0     0.617     28.6
1901.0     0.614     28.7
1902.0     0.610     28.9
1903.0     0.607     29.1
1904.0     0.604     29.3
1905.0     0.600     29.5
1906.0     0.597     29.7
1907.0     0.593     29.9
1908.0     0.589     30.1
1909.0     0.586     30.3
1910.0     0.582     30.5
1911.0     0.578     30.7
1912.0     0.574     30.9
1913.0     0.570     31.1
1914.0     0.566     31.3
1915.0     0.562     31.5
1916.0     0.557     31.8
1917.0     0.553     32.0
1918.0     0.549     32.2
1919.0     0.544     32.5
1920.0     0.540     32.7
1921.0     0.535     32.9
1922.0     0.530     33.2
1923.0     0.525     33.4
1924.0     0.521     33.7
1925.0     0.516     33.9
1926.0     0.511     34.2
1927.0     0.505     34.5
1928.0     0.500     34.7
1929.0     0.495     35.0
1930.0     0.490     35.3
1931.0     0.484     35.6
1932.0     0.479     35.9
1933.0     0.473     36.2
1934.0     0.467     36.5
1935.0     0.461     36.8
1936.0     0.455     37.2
1937.0     0.449     37.5
1938.0     0.443     37.9
1939.0     0.437     38.2
1940.0     0.431     38.6
1941.0     0.424     39.0
1942.0     0.418     39.4
1943.0     0.411     39.8
1944.0     0.404     40.2
1945.0     0.397     40.6
1946.0     0.390     41.1
1947.0     0.383     41.5
1948.0     0.376     42.0
1949.0     0.368     42.5
1950.0     0.361     43.0
1951.0     0.353     43.6
1952.0     0.345     44.1
1953.0     0.337     44.7
1954.0     0.329     45.4
1955.0     0.321     46.0
1956.0     0.312     46.7
1957.0     0.304     47.4
1958.0     0.295     48.2
1959.0     0.286     49.0
1960.0     0.277     49.9
1961.0     0.268     50.8
1962.0     0.258     51.8
1963.0     0.248     52.9
1964.0     0.238     54.1
1965.0     0.228     55.4
1966.0     0.218     56.8
1967.0     0.207     58.3
1968.0     0.197     60.0
1969.0     0.186     61.9
1970.0     0.175     64.0
1971.0     0.163     66.5
1972.0     0.152     69.3
1973.0     0.140     72.5
1974.0     0.128     76.4
1975.0     0.116     81.1
1976.0     0.104     86.8
1977.0     0.093     93.9
1978.0     0.082    103.0
1979.0     0.073    114.5
1980.0     0.066    129.0
1981.0     0.062    146.3
1982.0     0.060    165.0
1983.0     0.061    183.8
1984.0     0.063    201.8
1985.0     0.063    219.1
1986.0     0.064    236.2
1987.0     0.066    252.6
1988.0     0.070    267.6
1989.0     0.077    280.6
1990.0     0.084    291.4
1991.0     0.094    300.1
1992.0     0.104    307.3
1993.0     0.114    313.1
1994.0     0.125    318.0
1995.0     0.135    322.1
1996.0     0.146    325.6
1997.0     0.157    328.7
1998.0     0.168    331.3
1999.0     0.178    333.6
2000.0     0.188    335.7
2001.0     0.198    337.5
2002.0     0.208    339.2
2003.0     0.218    340.7
2004.0     0.228    342.1
2005.0     0.237    343.4
2006.0     0.247    344.6
2007.0     0.256    345.7
2008.0     0.265    346.7
2009.0     0.274    347.7
2010.0     0.282    348.6
2011.0     0.291    349.4
2012.0     0.299    350.2
2013.0     0.308    351.0
2014.0     0.316    351.7
2015.0     0.324    352.3
2016.0     0.332    353.0
2017.0     0.339    353.6
2018.0     0.347    354.2
2019.0     0.354    354.8
2020.0     0.362    355.3
2021.0     0.369    355.8
2022.0     0.376    356.3
2023.0     0.383    356.8
2024.0     0.390    357.3
2025.0     0.397    357.7
2026.0     0.403    358.2
2027.0     0.410    358.6
2028.0     0.416    359.0
2029.0     0.423    359.4
2030.0     0.429    359.8
2031.0     0.435      0.1
2032.0     0.441      0.5
2033.0     0.447      0.8
2034.0     0.453      1.2
2035.0     0.459      1.5
2036.0     0.464      1.8
2037.0     0.470      2.2
2038.0     0.475      2.5
2039.0     0.481      2.8
2040.0     0.486      3.1
2041.0     0.491      3.4
2042.0     0.497      3.6
2043.0     0.502      3.9
2044.0     0.507      4.2
2045.0     0.512      4.5
2046.0     0.517      4.7
2047.0     0.521      5.0
2048.0     0.526      5.2
2049.0     0.531      5.5
2050.0     0.535      5.7
2051.0     0.540      6.0
2052.0     0.544      6.2
2053.0     0.549      6.4
2054.0     0.553      6.7
2055.0     0.557      6.9
2056.0     0.561      7.1
2057.0     0.565      7.3
2058.0     0.569      7.5
2059.0     0.573      7.8
2060.0     0.577      8.0
2061.0     0.581      8.2
2062.0     0.585      8.4
2063.0     0.588      8.6
2064.0     0.592      8.8
2065.0     0.596      9.0
2066.0     0.599      9.2
2067.0     0.603      9.4
2068.0     0.606      9.5
2069.0     0.609      9.7
2070.0     0.613      9.9
2071.0     0.616     10.1
2072.0     0.619     10.3
2073.0     0.622     10.5
2074.0     0.625     10.6
2075.0     0.628     10.8
2076.0     0.631     11.0
2077.0     0.634     11.2
2078.0     0.637     11.3
2079.0     0.639     11.5
2080.0     0.642     11.7
2081.0     0.645     11.8
2082.0     0.647     12.0
2083.0     0.650     12.2
2084.0     0.652     12.3
2085.0     0.655     12.5
2086.0     0.657     12.7
2087.0     0.659     12.8
2088.0     0.661     13.0
2089.0     0.664     13.1
2090.0     0.666     13.3
2091.0     0.668     13.5
2092.0     0.670     13.6
2093.0     0.672     13.8
2094.0     0.674     13.9
2095.0     0.676     14.1
2096.0     0.678     14.2
2097.0     0.679     14.4
2098.0     0.681     14.5
2099.0     0.683     14.7
2100.0     0.684     14.8
2101.0     0.686     15.0
2102.0     0.687     15.1
2103.0     0.689     15.3
2104.0     0.690     15.4
2105.0     0.692     15.6
2106.0     0.693     15.7
2107.0     0.694     15.8
2108.0     0.696     16.0
2109.0     0.697     16.1
2110.0     0.698     16.3
2111.0     0.699     16.4
2112.0     0.700     16.6
2113.0     0.701     16.7
2114.0     0.702     16.8
2115.0     0.703     17.0
2116.0     0.704     17.1
2117.0     0.704     17.3
2118.0     0.705     17.4
2119.0     0.706     17.5
2120.0     0.706     17.7
2121.0     0.707     17.8
2122.0     0.708     18.0
2123.0     0.708     18.1
2124.0     0.708     18.2
2125.0     0.709     18.4
2126.0     0.709     18.5
2127.0     0.709     18.6
2128.0     0.710     18.8
2129.0     0.710     18.9
2130.0     0.710     19.1
2131.0     0.710     19.2
2132.0     0.710     19.3
2133.0     0.710     19.5
2134.0     0.710     19.6
2135.0     0.710     19.7
2136.0     0.710     19.9
2137.0     0.710     20.0
2138.0     0.710     20.2
2139.0     0.709     20.3
2140.0     0.709     20.4
2141.0     0.708     20.6
2142.0     0.708     20.7
2143.0     0.708     20.8
2144.0     0.707     21.0
2145.0     0.706     21.1
2146.0     0.706     21.3
2147.0     0.705     21.4
2148.0     0.704     21.5
2149.0     0.704     21.7
2150.0     0.703     21.8
2151.0     0.702     22.0
2152.0     0.701     22.1
2153.0     0.700     22.2
2154.0     0.699     22.4
2155.0     0.698     22.5
2156.0     0.697     22.7
2157.0     0.696     22.8
2158.0     0.694     23.0
2159.0     0.693     23.1
2160.0     0.692     23.2
2161.0     0.690     23.4
2162.0     0.689     23.5
2163.0     0.687     23.7
2164.0     0.686     23.8
2165.0     0.684     24.0
2166.0     0.683     24.1
2167.0     0.681     24.3
2168.0     0.679     24.4
2169.0     0.677     24.6
2170.0     0.676     24.7

Disclaimer

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.