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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:36:06

Orbital Elements for BU948AB
WDS: BU948AB WDS ID/Discoverer
P: 300.000 Orbital period (years)
a: 0.877 Semi-major axis (arcseconds)
i: 155.0 Inclination (degrees)
Ω: 107.6 Longitude of ascending node (degrees)
T: 2048.500 Epoch of periastron passage (year)
e: 0.611 Eccentricity
ω: 141.1 Longitude of periastron (degrees)
Start-Year: 1875.0 Year
End-Year: 2175.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU948AB
Position: 160544.53-061728.1 Epoch-2000 right ascension and declination
WDS-ID: 16057-0617 WDS designation
Discoverer Code: BU948AB Discover designation and components
ADS number: 9918 Aitken Double Star catalog
HD number: 144362 HD catalog number
Hipparcos number: 78849 Hipparcos catalog number
V1: 6.46 Magnitude of the primary
V2: 9.01 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU948AB



WDS 6th Orbit including measures of BU948AB

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


Ephemeris of BU948AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.565     66.0
-------------------------
1875.0     1.318    152.4
1876.0     1.321    152.0
1877.0     1.324    151.6
1878.0     1.327    151.3
1879.0     1.329    150.9
1880.0     1.332    150.5
1881.0     1.334    150.1
1882.0     1.337    149.8
1883.0     1.339    149.4
1884.0     1.341    149.0
1885.0     1.343    148.7
1886.0     1.345    148.3
1887.0     1.347    147.9
1888.0     1.349    147.6
1889.0     1.350    147.2
1890.0     1.352    146.8
1891.0     1.354    146.5
1892.0     1.355    146.1
1893.0     1.356    145.7
1894.0     1.358    145.4
1895.0     1.359    145.0
1896.0     1.360    144.7
1897.0     1.361    144.3
1898.0     1.362    144.0
1899.0     1.363    143.6
1900.0     1.363    143.2
1901.0     1.364    142.9
1902.0     1.364    142.5
1903.0     1.365    142.2
1904.0     1.365    141.8
1905.0     1.366    141.5
1906.0     1.366    141.1
1907.0     1.366    140.8
1908.0     1.366    140.4
1909.0     1.366    140.0
1910.0     1.366    139.7
1911.0     1.365    139.3
1912.0     1.365    139.0
1913.0     1.364    138.6
1914.0     1.364    138.3
1915.0     1.363    137.9
1916.0     1.363    137.6
1917.0     1.362    137.2
1918.0     1.361    136.8
1919.0     1.360    136.5
1920.0     1.359    136.1
1921.0     1.357    135.8
1922.0     1.356    135.4
1923.0     1.355    135.0
1924.0     1.353    134.7
1925.0     1.351    134.3
1926.0     1.350    134.0
1927.0     1.348    133.6
1928.0     1.346    133.2
1929.0     1.344    132.9
1930.0     1.342    132.5
1931.0     1.340    132.1
1932.0     1.337    131.8
1933.0     1.335    131.4
1934.0     1.333    131.0
1935.0     1.330    130.6
1936.0     1.327    130.3
1937.0     1.324    129.9
1938.0     1.322    129.5
1939.0     1.318    129.1
1940.0     1.315    128.8
1941.0     1.312    128.4
1942.0     1.309    128.0
1943.0     1.305    127.6
1944.0     1.302    127.2
1945.0     1.298    126.8
1946.0     1.294    126.4
1947.0     1.291    126.0
1948.0     1.287    125.6
1949.0     1.282    125.2
1950.0     1.278    124.8
1951.0     1.274    124.4
1952.0     1.269    124.0
1953.0     1.265    123.6
1954.0     1.260    123.2
1955.0     1.255    122.8
1956.0     1.251    122.3
1957.0     1.246    121.9
1958.0     1.240    121.5
1959.0     1.235    121.0
1960.0     1.230    120.6
1961.0     1.224    120.2
1962.0     1.219    119.7
1963.0     1.213    119.3
1964.0     1.207    118.8
1965.0     1.201    118.4
1966.0     1.195    117.9
1967.0     1.189    117.4
1968.0     1.183    117.0
1969.0     1.176    116.5
1970.0     1.169    116.0
1971.0     1.163    115.5
1972.0     1.156    115.0
1973.0     1.149    114.5
1974.0     1.142    114.0
1975.0     1.134    113.5
1976.0     1.127    113.0
1977.0     1.119    112.5
1978.0     1.112    111.9
1979.0     1.104    111.4
1980.0     1.096    110.9
1981.0     1.088    110.3
1982.0     1.079    109.7
1983.0     1.071    109.2
1984.0     1.062    108.6
1985.0     1.054    108.0
1986.0     1.045    107.4
1987.0     1.036    106.8
1988.0     1.027    106.2
1989.0     1.017    105.5
1990.0     1.008    104.9
1991.0     0.998    104.2
1992.0     0.988    103.5
1993.0     0.978    102.9
1994.0     0.968    102.2
1995.0     0.958    101.4
1996.0     0.947    100.7
1997.0     0.937    100.0
1998.0     0.926     99.2
1999.0     0.915     98.4
2000.0     0.904     97.6
2001.0     0.892     96.8
2002.0     0.881     96.0
2003.0     0.869     95.1
2004.0     0.857     94.2
2005.0     0.845     93.3
2006.0     0.833     92.4
2007.0     0.820     91.4
2008.0     0.808     90.4
2009.0     0.795     89.3
2010.0     0.782     88.3
2011.0     0.768     87.2
2012.0     0.755     86.0
2013.0     0.741     84.9
2014.0     0.728     83.6
2015.0     0.714     82.4
2016.0     0.700     81.0
2017.0     0.685     79.6
2018.0     0.671     78.2
2019.0     0.656     76.7
2020.0     0.641     75.1
2021.0     0.626     73.5
2022.0     0.611     71.8
2023.0     0.596     69.9
2024.0     0.581     68.0
2025.0     0.565     66.0
2026.0     0.550     63.9
2027.0     0.534     61.6
2028.0     0.519     59.2
2029.0     0.503     56.7
2030.0     0.488     54.0
2031.0     0.472     51.1
2032.0     0.457     48.1
2033.0     0.443     44.8
2034.0     0.428     41.3
2035.0     0.414     37.5
2036.0     0.401     33.6
2037.0     0.388     29.3
2038.0     0.376     24.7
2039.0     0.365     19.9
2040.0     0.355     14.8
2041.0     0.346      9.4
2042.0     0.339      3.7
2043.0     0.333    357.9
2044.0     0.329    351.8
2045.0     0.326    345.6
2046.0     0.325    339.3
2047.0     0.325    333.1
2048.0     0.327    326.9
2049.0     0.331    320.7
2050.0     0.335    314.8
2051.0     0.341    309.0
2052.0     0.348    303.4
2053.0     0.355    298.0
2054.0     0.363    292.9
2055.0     0.372    288.0
2056.0     0.381    283.3
2057.0     0.390    278.8
2058.0     0.400    274.6
2059.0     0.410    270.6
2060.0     0.420    266.7
2061.0     0.431    263.1
2062.0     0.442    259.6
2063.0     0.452    256.3
2064.0     0.463    253.1
2065.0     0.474    250.1
2066.0     0.485    247.2
2067.0     0.496    244.5
2068.0     0.508    241.8
2069.0     0.519    239.3
2070.0     0.530    236.9
2071.0     0.541    234.6
2072.0     0.553    232.4
2073.0     0.564    230.3
2074.0     0.575    228.2
2075.0     0.586    226.3
2076.0     0.598    224.4
2077.0     0.609    222.6
2078.0     0.620    220.8
2079.0     0.631    219.1
2080.0     0.642    217.5
2081.0     0.653    215.9
2082.0     0.664    214.4
2083.0     0.675    212.9
2084.0     0.686    211.5
2085.0     0.697    210.1
2086.0     0.708    208.8
2087.0     0.719    207.5
2088.0     0.729    206.2
2089.0     0.740    205.0
2090.0     0.750    203.8
2091.0     0.761    202.6
2092.0     0.771    201.5
2093.0     0.781    200.4
2094.0     0.792    199.3
2095.0     0.802    198.3
2096.0     0.812    197.2
2097.0     0.822    196.3
2098.0     0.831    195.3
2099.0     0.841    194.3
2100.0     0.851    193.4
2101.0     0.860    192.5
2102.0     0.870    191.6
2103.0     0.879    190.8
2104.0     0.889    189.9
2105.0     0.898    189.1
2106.0     0.907    188.3
2107.0     0.916    187.5
2108.0     0.925    186.7
2109.0     0.934    185.9
2110.0     0.943    185.2
2111.0     0.951    184.4
2112.0     0.960    183.7
2113.0     0.968    183.0
2114.0     0.977    182.3
2115.0     0.985    181.6
2116.0     0.993    180.9
2117.0     1.001    180.3
2118.0     1.009    179.6
2119.0     1.017    179.0
2120.0     1.025    178.3
2121.0     1.033    177.7
2122.0     1.041    177.1
2123.0     1.048    176.5
2124.0     1.056    175.9
2125.0     1.063    175.3
2126.0     1.070    174.7
2127.0     1.078    174.1
2128.0     1.085    173.6
2129.0     1.092    173.0
2130.0     1.099    172.5
2131.0     1.106    171.9
2132.0     1.112    171.4
2133.0     1.119    170.8
2134.0     1.126    170.3
2135.0     1.132    169.8
2136.0     1.138    169.3
2137.0     1.145    168.8
2138.0     1.151    168.3
2139.0     1.157    167.8
2140.0     1.163    167.3
2141.0     1.169    166.8
2142.0     1.175    166.3
2143.0     1.181    165.8
2144.0     1.186    165.4
2145.0     1.192    164.9
2146.0     1.197    164.4
2147.0     1.203    164.0
2148.0     1.208    163.5
2149.0     1.213    163.1
2150.0     1.219    162.6
2151.0     1.224    162.2
2152.0     1.229    161.7
2153.0     1.233    161.3
2154.0     1.238    160.9
2155.0     1.243    160.4
2156.0     1.248    160.0
2157.0     1.252    159.6
2158.0     1.256    159.2
2159.0     1.261    158.7
2160.0     1.265    158.3
2161.0     1.269    157.9
2162.0     1.273    157.5
2163.0     1.277    157.1
2164.0     1.281    156.7
2165.0     1.285    156.3
2166.0     1.289    155.9
2167.0     1.292    155.5
2168.0     1.296    155.1
2169.0     1.299    154.7
2170.0     1.303    154.3
2171.0     1.306    153.9
2172.0     1.309    153.5
2173.0     1.312    153.2
2174.0     1.315    152.8






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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