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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:00:32

Orbital Elements for BU1186
WDS: BU1186 WDS ID/Discoverer
P: 160.590 Orbital period (years)
a: 0.401 Semi-major axis (arcseconds)
i: 118.6 Inclination (degrees)
Ω: 5.4 Longitude of ascending node (degrees)
T: 2005.800 Epoch of periastron passage (year)
e: 0.74 Eccentricity
ω: 27.3 Longitude of periastron (degrees)
Start-Year: 1945.0 Year
End-Year: 2105.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1186
Position: 042728.77+111244.4 Epoch-2000 right ascension and declination
WDS-ID: 04275+1113 WDS designation
Discoverer Code: BU1186 Discover designation and components
ADS number: 3228 Aitken Double Star catalog
HD number: 28217 HD catalog number
Hipparcos number: 20804 Hipparcos catalog number
V1: 6.07 Magnitude of the primary
V2: 7.94 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1996 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU1186



WDS 6th Orbit including measures of BU1186

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


Ephemeris of BU1186
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.362    194.4
-------------------------
1945.0     0.566    165.4
1946.0     0.561    165.0
1947.0     0.555    164.6
1948.0     0.550    164.3
1949.0     0.544    163.9
1950.0     0.538    163.5
1951.0     0.532    163.1
1952.0     0.525    162.7
1953.0     0.519    162.2
1954.0     0.512    161.8
1955.0     0.505    161.3
1956.0     0.498    160.9
1957.0     0.491    160.4
1958.0     0.483    159.9
1959.0     0.476    159.4
1960.0     0.468    158.9
1961.0     0.460    158.3
1962.0     0.452    157.8
1963.0     0.444    157.2
1964.0     0.436    156.6
1965.0     0.427    156.0
1966.0     0.418    155.3
1967.0     0.409    154.7
1968.0     0.400    154.0
1969.0     0.391    153.2
1970.0     0.382    152.4
1971.0     0.372    151.6
1972.0     0.362    150.8
1973.0     0.352    149.9
1974.0     0.342    148.9
1975.0     0.332    147.9
1976.0     0.322    146.8
1977.0     0.311    145.6
1978.0     0.301    144.4
1979.0     0.290    143.1
1980.0     0.279    141.6
1981.0     0.268    140.1
1982.0     0.257    138.4
1983.0     0.246    136.5
1984.0     0.234    134.5
1985.0     0.223    132.3
1986.0     0.212    129.8
1987.0     0.201    127.1
1988.0     0.189    124.1
1989.0     0.179    120.6
1990.0     0.168    116.8
1991.0     0.158    112.4
1992.0     0.148    107.4
1993.0     0.139    101.8
1994.0     0.132     95.5
1995.0     0.125     88.4
1996.0     0.119     80.6
1997.0     0.116     72.2
1998.0     0.114     63.3
1999.0     0.113     54.3
2000.0     0.114     45.2
2001.0     0.115     36.4
2002.0     0.116     27.8
2003.0     0.116     19.2
2004.0     0.113     10.4
2005.0     0.105      0.7
2006.0     0.093    348.9
2007.0     0.077    332.7
2008.0     0.065    309.4
2009.0     0.064    280.5
2010.0     0.075    255.4
2011.0     0.093    238.5
2012.0     0.115    227.7
2013.0     0.138    220.3
2014.0     0.160    215.1
2015.0     0.183    211.1
2016.0     0.204    208.0
2017.0     0.225    205.5
2018.0     0.244    203.4
2019.0     0.263    201.6
2020.0     0.282    200.0
2021.0     0.299    198.6
2022.0     0.316    197.4
2023.0     0.332    196.3
2024.0     0.347    195.3
2025.0     0.362    194.4
2026.0     0.376    193.5
2027.0     0.390    192.7
2028.0     0.403    192.0
2029.0     0.416    191.3
2030.0     0.428    190.6
2031.0     0.440    190.0
2032.0     0.451    189.4
2033.0     0.462    188.9
2034.0     0.472    188.3
2035.0     0.482    187.8
2036.0     0.492    187.3
2037.0     0.501    186.9
2038.0     0.510    186.4
2039.0     0.519    186.0
2040.0     0.527    185.6
2041.0     0.535    185.1
2042.0     0.542    184.7
2043.0     0.549    184.4
2044.0     0.556    184.0
2045.0     0.563    183.6
2046.0     0.569    183.2
2047.0     0.575    182.9
2048.0     0.581    182.5
2049.0     0.587    182.2
2050.0     0.592    181.9
2051.0     0.597    181.5
2052.0     0.602    181.2
2053.0     0.606    180.9
2054.0     0.611    180.6
2055.0     0.615    180.3
2056.0     0.619    180.0
2057.0     0.622    179.7
2058.0     0.626    179.4
2059.0     0.629    179.1
2060.0     0.632    178.8
2061.0     0.634    178.5
2062.0     0.637    178.2
2063.0     0.639    177.9
2064.0     0.641    177.6
2065.0     0.643    177.4
2066.0     0.645    177.1
2067.0     0.646    176.8
2068.0     0.648    176.5
2069.0     0.649    176.2
2070.0     0.649    176.0
2071.0     0.650    175.7
2072.0     0.651    175.4
2073.0     0.651    175.1
2074.0     0.651    174.9
2075.0     0.651    174.6
2076.0     0.651    174.3
2077.0     0.650    174.1
2078.0     0.650    173.8
2079.0     0.649    173.5
2080.0     0.648    173.2
2081.0     0.647    173.0
2082.0     0.646    172.7
2083.0     0.644    172.4
2084.0     0.643    172.1
2085.0     0.641    171.8
2086.0     0.639    171.5
2087.0     0.637    171.3
2088.0     0.634    171.0
2089.0     0.632    170.7
2090.0     0.629    170.4
2091.0     0.626    170.1
2092.0     0.623    169.8
2093.0     0.620    169.5
2094.0     0.617    169.2
2095.0     0.613    168.9
2096.0     0.610    168.6
2097.0     0.606    168.3
2098.0     0.602    168.0
2099.0     0.598    167.6
2100.0     0.594    167.3
2101.0     0.589    167.0
2102.0     0.584    166.6
2103.0     0.580    166.3
2104.0     0.575    165.9



 

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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