Double Star Calculator - Orbit

Orbital Elements for BU1007
WDS: BU1007 WDS ID/Discoverer
P: 111.020 Orbital period (years)
a: 0.245 Semi-major axis (arcseconds)
i: 80.5 Inclination (degrees)
Ω: 53.2 Longitude of ascending node (degrees)
T: 1938.130 Epoch of periastron passage (year)
e: 0.661 Eccentricity
ω: 40.9 Longitude of periastron (degrees)
Start-Year: 1969.49 Year
End-Year: 2080.51 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1007
Position: 054117.72+163203.1 Epoch-2000 right ascension and declination
WDS-ID: 05413+1632 WDS designation
Discoverer Code: BU1007 Discover designation and components
ADS number: 4265 Aitken Double Star catalog
HD number: 37711 HD catalog number
Hipparcos number: 26777 Hipparcos catalog number
V1: 5.04 Magnitude of the primary
V2: 6.56 Magnitude of the secondary
Equinox: Equinox
Date: 2011 Date of last observation
Orbit grade: 2 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Dru2014 Reference

Double Star Orbit for BU1007



WDS 6th Orbit including measures of BU1007

-- 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 BU1007
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.085   267.69
--------------------------
1969.49    0.335   236.15
1970.49    0.337   236.37
1971.49    0.339   236.58
1972.49    0.341   236.79
1973.49    0.342   236.99
1974.49    0.343   237.20
1975.49    0.344   237.40
1976.49    0.344   237.61
1977.49    0.344   237.81
1978.49    0.344   238.01
1979.49    0.344   238.22
1980.49    0.343   238.42
1981.49    0.342   238.63
1982.49    0.341   238.84
1983.49    0.339   239.04
1984.49    0.338   239.25
1985.49    0.336   239.47
1986.49    0.333   239.68
1987.49    0.331   239.90
1988.49    0.328   240.12
1989.49    0.325   240.35
1990.49    0.322   240.58
1991.49    0.319   240.81
1992.49    0.315   241.05
1993.49    0.311   241.30
1994.49    0.307   241.55
1995.49    0.303   241.81
1996.49    0.299   242.08
1997.49    0.294   242.35
1998.49    0.289   242.63
1999.49    0.284   242.93
2000.49    0.279   243.23
2001.49    0.273   243.55
2002.49    0.268   243.88
2003.49    0.262   244.22
2004.49    0.256   244.58
2005.49    0.250   244.96
2006.49    0.243   245.35
2007.49    0.237   245.77
2008.49    0.230   246.21
2009.49    0.223   246.68
2010.49    0.216   247.18
2011.49    0.209   247.71
2012.49    0.202   248.29
2013.49    0.194   248.90
2014.49    0.186   249.57
2015.49    0.178   250.29
2016.49    0.170   251.08
2017.49    0.162   251.96
2018.49    0.154   252.92
2019.49    0.146   253.99
2020.49    0.137   255.20
2021.49    0.128   256.57
2022.49    0.120   258.14
2023.49    0.111   259.95
2024.49    0.102   262.08
2025.49    0.093   264.61
2026.49    0.085   267.66
2027.49    0.076   271.41
2028.49    0.068   276.09
2029.49    0.060   282.06
2030.49    0.053   289.74
2031.49    0.047   299.62
2032.49    0.042   312.02
2033.49    0.040   326.53
2034.49    0.040   341.72
2035.49    0.043   355.71
2036.49    0.048     7.39
2037.49    0.054    16.64
2038.49    0.061    23.86
2039.49    0.069    29.56
2040.49    0.076    34.14
2041.49    0.083    37.93
2042.49    0.090    41.16
2043.49    0.095    43.99
2044.49    0.098    46.58
2045.49    0.099    49.06
2046.49    0.096    51.59
2047.49    0.088    54.42
2048.49    0.075    58.01
2049.49    0.057    63.62
2050.49    0.035    75.84
2051.49    0.017   121.95
2052.49    0.026   193.59
2053.49    0.049   212.41
2054.49    0.072   219.19
2055.49    0.094   222.72
2056.49    0.115   224.94
2057.49    0.134   226.50
2058.49    0.152   227.68
2059.49    0.168   228.62
2060.49    0.184   229.40
2061.49    0.198   230.06
2062.49    0.211   230.64
2063.49    0.224   231.15
2064.49    0.235   231.61
2065.49    0.246   232.02
2066.49    0.255   232.41
2067.49    0.265   232.77
2068.49    0.273   233.10
2069.49    0.281   233.41
2070.49    0.288   233.71
2071.49    0.295   233.99
2072.49    0.301   234.26
2073.49    0.307   234.52
2074.49    0.312   234.78
2075.49    0.317   235.02
2076.49    0.321   235.26
2077.49    0.325   235.49
2078.49    0.329   235.71
2079.49    0.332   235.93
2080.49    0.335   236.15






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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 15:39:50



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