Double Star Calculator - Orbit

Orbital Elements for BU513AB
WDS: BU513AB WDS ID/Discoverer
P: 60.430 Orbital period (years)
a: 0.624 Semi-major axis (arcseconds)
i: 18.9 Inclination (degrees)
Ω: 56.7 Longitude of ascending node (degrees)
T: 1964.520 Epoch of periastron passage (year)
e: 0.349 Eccentricity
ω: 10.3 Longitude of periastron (degrees)
Start-Year: 1994.785 Year
End-Year: 2055.215 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for BU513AB
Position: 020157.55+705425.4 Epoch-2000 right ascension and declination
WDS-ID: 02020+7054 WDS designation
Discoverer Code: BU513AB Discover designation and components
ADS number: 1598 Aitken Double Star catalog
HD number: 12111 HD catalog number
Hipparcos number: 9480 Hipparcos catalog number
V1: 4.65 Magnitude of the primary
V2: 6.74 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 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: Doc2024b Reference

Double Star Orbit for BU513AB



WDS 6th Orbit including measures of BU513AB

-- 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 BU513AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.407    85.83
--------------------------
1994.79    0.840   246.60
1994.88    0.840   246.89
1994.98    0.840   247.18
1995.08    0.840   247.48
1995.18    0.840   247.77
1995.28    0.840   248.06
1995.38    0.839   248.35
1995.48    0.839   248.64
1995.58    0.839   248.93
1995.68    0.839   249.23
1995.78    0.839   249.52
1995.88    0.838   249.81
1995.98    0.838   250.10
1996.08    0.838   250.40
1996.18    0.838   250.69
1996.28    0.837   250.98
1996.38    0.837   251.28
1996.48    0.837   251.57
1996.58    0.836   251.86
1996.68    0.836   252.16
1996.78    0.835   252.45
1996.88    0.835   252.75
1996.98    0.835   253.04
1997.08    0.834   253.34
1997.18    0.834   253.63
1997.28    0.833   253.93
1997.38    0.833   254.23
1997.48    0.832   254.52
1997.58    0.832   254.82
1997.68    0.831   255.12
1997.78    0.831   255.42
1997.88    0.830   255.71
1997.98    0.830   256.01
1998.08    0.829   256.31
1998.18    0.828   256.61
1998.28    0.828   256.91
1998.38    0.827   257.21
1998.48    0.827   257.51
1998.58    0.826   257.81
1998.68    0.825   258.11
1998.78    0.825   258.42
1998.88    0.824   258.72
1998.98    0.823   259.02
1999.08    0.822   259.33
1999.18    0.822   259.63
1999.28    0.821   259.94
1999.38    0.820   260.24
1999.48    0.819   260.55
1999.58    0.819   260.85
1999.68    0.818   261.16
1999.78    0.817   261.47
1999.88    0.816   261.78
1999.98    0.815   262.09
2000.08    0.814   262.40
2000.18    0.813   262.71
2000.28    0.813   263.02
2000.38    0.812   263.33
2000.48    0.811   263.64
2000.58    0.810   263.96
2000.68    0.809   264.27
2000.78    0.808   264.58
2000.88    0.807   264.90
2000.98    0.806   265.22
2001.08    0.805   265.53
2001.18    0.804   265.85
2001.28    0.803   266.17
2001.38    0.802   266.49
2001.48    0.801   266.81
2001.58    0.799   267.13
2001.68    0.798   267.45
2001.78    0.797   267.78
2001.88    0.796   268.10
2001.98    0.795   268.43
2002.08    0.794   268.75
2002.18    0.793   269.08
2002.28    0.791   269.41
2002.38    0.790   269.74
2002.48    0.789   270.06
2002.58    0.788   270.40
2002.68    0.787   270.73
2002.78    0.785   271.06
2002.88    0.784   271.39
2002.98    0.783   271.73
2003.08    0.781   272.07
2003.18    0.780   272.40
2003.28    0.779   272.74
2003.38    0.777   273.08
2003.48    0.776   273.42
2003.58    0.775   273.76
2003.68    0.773   274.11
2003.78    0.772   274.45
2003.88    0.771   274.80
2003.98    0.769   275.14
2004.08    0.768   275.49
2004.18    0.766   275.84
2004.28    0.765   276.19
2004.38    0.763   276.55
2004.48    0.762   276.90
2004.58    0.760   277.25
2004.68    0.759   277.61
2004.78    0.757   277.97
2004.88    0.756   278.33
2004.98    0.754   278.69
2005.08    0.753   279.05
2005.18    0.751   279.41
2005.28    0.750   279.78
2005.38    0.748   280.15
2005.48    0.746   280.52
2005.58    0.745   280.89
2005.68    0.743   281.26
2005.78    0.741   281.63
2005.88    0.740   282.01
2005.98    0.738   282.38
2006.08    0.736   282.76
2006.18    0.735   283.14
2006.28    0.733   283.52
2006.38    0.731   283.91
2006.48    0.730   284.29
2006.58    0.728   284.68
2006.68    0.726   285.07
2006.78    0.724   285.46
2006.88    0.722   285.85
2006.98    0.721   286.25
2007.08    0.719   286.64
2007.18    0.717   287.04
2007.28    0.715   287.44
2007.38    0.713   287.85
2007.48    0.712   288.25
2007.58    0.710   288.66
2007.68    0.708   289.07
2007.78    0.706   289.48
2007.88    0.704   289.89
2007.98    0.702   290.31
2008.08    0.700   290.73
2008.18    0.698   291.15
2008.28    0.696   291.57
2008.38    0.694   292.00
2008.48    0.692   292.43
2008.58    0.690   292.86
2008.68    0.689   293.29
2008.78    0.687   293.72
2008.88    0.685   294.16
2008.98    0.683   294.60
2009.08    0.681   295.04
2009.18    0.679   295.49
2009.28    0.676   295.94
2009.38    0.674   296.39
2009.48    0.672   296.84
2009.58    0.670   297.30
2009.68    0.668   297.76
2009.78    0.666   298.22
2009.88    0.664   298.68
2009.98    0.662   299.15
2010.08    0.660   299.62
2010.18    0.658   300.10
2010.28    0.656   300.57
2010.38    0.654   301.05
2010.48    0.651   301.54
2010.58    0.649   302.02
2010.68    0.647   302.51
2010.78    0.645   303.00
2010.88    0.643   303.50
2010.98    0.641   304.00
2011.08    0.639   304.50
2011.18    0.636   305.01
2011.28    0.634   305.52
2011.38    0.632   306.03
2011.48    0.630   306.55
2011.58    0.628   307.07
2011.68    0.625   307.59
2011.78    0.623   308.12
2011.88    0.621   308.65
2011.98    0.619   309.19
2012.08    0.616   309.73
2012.18    0.614   310.27
2012.28    0.612   310.82
2012.38    0.610   311.37
2012.48    0.608   311.92
2012.58    0.605   312.48
2012.68    0.603   313.05
2012.78    0.601   313.61
2012.88    0.599   314.18
2012.98    0.596   314.76
2013.08    0.594   315.34
2013.18    0.592   315.93
2013.28    0.589   316.52
2013.38    0.587   317.11
2013.48    0.585   317.71
2013.58    0.583   318.31
2013.68    0.580   318.92
2013.78    0.578   319.53
2013.88    0.576   320.15
2013.98    0.574   320.77
2014.08    0.571   321.40
2014.18    0.569   322.03
2014.28    0.567   322.67
2014.38    0.565   323.31
2014.48    0.562   323.96
2014.58    0.560   324.62
2014.68    0.558   325.27
2014.78    0.556   325.94
2014.88    0.553   326.61
2014.98    0.551   327.28
2015.08    0.549   327.96
2015.18    0.547   328.65
2015.28    0.544   329.34
2015.38    0.542   330.04
2015.48    0.540   330.74
2015.58    0.538   331.45
2015.68    0.535   332.16
2015.78    0.533   332.88
2015.88    0.531   333.61
2015.98    0.529   334.34
2016.08    0.527   335.08
2016.18    0.524   335.82
2016.28    0.522   336.57
2016.38    0.520   337.33
2016.48    0.518   338.09
2016.58    0.516   338.86
2016.68    0.514   339.64
2016.78    0.512   340.42
2016.88    0.509   341.21
2016.98    0.507   342.01
2017.08    0.505   342.81
2017.18    0.503   343.62
2017.28    0.501   344.44
2017.38    0.499   345.26
2017.48    0.497   346.09
2017.58    0.495   346.92
2017.68    0.493   347.77
2017.78    0.491   348.62
2017.88    0.489   349.47
2017.98    0.487   350.34
2018.08    0.485   351.21
2018.18    0.483   352.08
2018.28    0.481   352.97
2018.38    0.479   353.86
2018.48    0.477   354.76
2018.58    0.475   355.67
2018.68    0.474   356.58
2018.78    0.472   357.50
2018.88    0.470   358.43
2018.98    0.468   359.36
2019.08    0.466     0.30
2019.18    0.465     1.25
2019.28    0.463     2.21
2019.38    0.461     3.17
2019.48    0.459     4.14
2019.58    0.458     5.12
2019.68    0.456     6.11
2019.78    0.454     7.10
2019.88    0.453     8.10
2019.98    0.451     9.10
2020.08    0.450    10.12
2020.18    0.448    11.14
2020.28    0.447    12.16
2020.38    0.445    13.20
2020.48    0.444    14.24
2020.58    0.442    15.29
2020.68    0.441    16.34
2020.78    0.439    17.41
2020.88    0.438    18.47
2020.98    0.437    19.55
2021.08    0.435    20.63
2021.18    0.434    21.72
2021.28    0.433    22.81
2021.38    0.431    23.92
2021.48    0.430    25.02
2021.58    0.429    26.14
2021.68    0.428    27.26
2021.78    0.427    28.38
2021.88    0.426    29.52
2021.98    0.425    30.65
2022.08    0.423    31.80
2022.18    0.422    32.95
2022.28    0.421    34.10
2022.38    0.420    35.26
2022.48    0.420    36.43
2022.58    0.419    37.60
2022.68    0.418    38.78
2022.78    0.417    39.96
2022.88    0.416    41.14
2022.98    0.415    42.34
2023.08    0.414    43.53
2023.18    0.414    44.73
2023.28    0.413    45.93
2023.38    0.412    47.14
2023.48    0.412    48.35
2023.58    0.411    49.57
2023.68    0.410    50.79
2023.78    0.410    52.01
2023.88    0.409    53.24
2023.98    0.409    54.47
2024.08    0.408    55.70
2024.18    0.408    56.94
2024.28    0.407    58.17
2024.38    0.407    59.41
2024.48    0.407    60.66
2024.58    0.406    61.90
2024.68    0.406    63.15
2024.78    0.406    64.39
2024.88    0.406    65.64
2024.98    0.405    66.89
2025.08    0.405    68.14
2025.18    0.405    69.40
2025.28    0.405    70.65
2025.38    0.405    71.90
2025.48    0.405    73.16
2025.58    0.405    74.41
2025.68    0.405    75.66
2025.78    0.405    76.91
2025.88    0.405    78.16
2025.98    0.406    79.42
2026.08    0.406    80.66
2026.18    0.406    81.91
2026.28    0.406    83.16
2026.38    0.407    84.40
2026.48    0.407    85.64
2026.58    0.408    86.88
2026.68    0.408    88.12
2026.78    0.408    89.35
2026.88    0.409    90.59
2026.98    0.410    91.81
2027.08    0.410    93.04
2027.18    0.411    94.26
2027.28    0.411    95.48
2027.38    0.412    96.69
2027.48    0.413    97.90
2027.58    0.414    99.10
2027.68    0.415   100.30
2027.78    0.416   101.49
2027.88    0.416   102.68
2027.98    0.417   103.86
2028.08    0.418   105.04
2028.18    0.419   106.21
2028.28    0.421   107.38
2028.38    0.422   108.54
2028.48    0.423   109.69
2028.58    0.424   110.84
2028.68    0.425   111.98
2028.78    0.427   113.11
2028.88    0.428   114.24
2028.98    0.429   115.36
2029.08    0.431   116.47
2029.18    0.432   117.58
2029.28    0.433   118.68
2029.38    0.435   119.77
2029.48    0.436   120.85
2029.58    0.438   121.93
2029.68    0.440   122.99
2029.78    0.441   124.06
2029.88    0.443   125.11
2029.98    0.445   126.15
2030.08    0.446   127.19
2030.18    0.448   128.22
2030.28    0.450   129.24
2030.38    0.452   130.25
2030.48    0.454   131.25
2030.58    0.455   132.25
2030.68    0.457   133.23
2030.78    0.459   134.21
2030.88    0.461   135.18
2030.98    0.463   136.15
2031.08    0.465   137.10
2031.18    0.467   138.05
2031.28    0.469   138.98
2031.38    0.471   139.91
2031.48    0.474   140.83
2031.58    0.476   141.75
2031.68    0.478   142.65
2031.78    0.480   143.55
2031.88    0.482   144.44
2031.98    0.484   145.32
2032.08    0.487   146.19
2032.18    0.489   147.05
2032.28    0.491   147.91
2032.38    0.493   148.76
2032.48    0.496   149.60
2032.58    0.498   150.43
2032.68    0.500   151.26
2032.78    0.503   152.07
2032.88    0.505   152.88
2032.98    0.507   153.69
2033.08    0.510   154.48
2033.18    0.512   155.27
2033.28    0.515   156.05
2033.38    0.517   156.82
2033.48    0.519   157.59
2033.58    0.522   158.35
2033.68    0.524   159.10
2033.78    0.527   159.84
2033.88    0.529   160.58
2033.98    0.532   161.31
2034.08    0.534   162.03
2034.18    0.537   162.75
2034.28    0.539   163.46
2034.38    0.542   164.17
2034.48    0.544   164.87
2034.58    0.547   165.56
2034.68    0.549   166.24
2034.78    0.552   166.92
2034.88    0.554   167.59
2034.98    0.557   168.26
2035.08    0.559   168.92
2035.18    0.562   169.58
2035.28    0.564   170.23
2035.38    0.567   170.87
2035.48    0.569   171.51
2035.58    0.572   172.14
2035.68    0.574   172.77
2035.78    0.577   173.39
2035.88    0.579   174.00
2035.98    0.582   174.61
2036.08    0.584   175.22
2036.18    0.587   175.82
2036.28    0.589   176.42
2036.38    0.592   177.01
2036.48    0.594   177.59
2036.58    0.596   178.17
2036.68    0.599   178.75
2036.78    0.601   179.32
2036.88    0.604   179.89
2036.98    0.606   180.45
2037.08    0.609   181.00
2037.18    0.611   181.56
2037.28    0.614   182.11
2037.38    0.616   182.65
2037.48    0.618   183.19
2037.58    0.621   183.72
2037.68    0.623   184.26
2037.78    0.626   184.78
2037.88    0.628   185.31
2037.98    0.630   185.83
2038.08    0.633   186.34
2038.18    0.635   186.85
2038.28    0.638   187.36
2038.38    0.640   187.86
2038.48    0.642   188.36
2038.58    0.645   188.86
2038.68    0.647   189.35
2038.78    0.649   189.84
2038.88    0.652   190.33
2038.98    0.654   190.81
2039.08    0.656   191.29
2039.18    0.658   191.77
2039.28    0.661   192.24
2039.38    0.663   192.71
2039.48    0.665   193.18
2039.58    0.667   193.64
2039.68    0.670   194.10
2039.78    0.672   194.56
2039.88    0.674   195.01
2039.98    0.676   195.46
2040.08    0.678   195.91
2040.18    0.681   196.36
2040.28    0.683   196.80
2040.38    0.685   197.24
2040.48    0.687   197.68
2040.58    0.689   198.11
2040.68    0.691   198.54
2040.78    0.693   198.97
2040.88    0.695   199.40
2040.98    0.697   199.82
2041.08    0.699   200.24
2041.18    0.701   200.66
2041.28    0.703   201.08
2041.38    0.706   201.50
2041.48    0.707   201.91
2041.58    0.709   202.32
2041.68    0.711   202.72
2041.78    0.713   203.13
2041.88    0.715   203.53
2041.98    0.717   203.93
2042.08    0.719   204.33
2042.18    0.721   204.73
2042.28    0.723   205.12
2042.38    0.725   205.52
2042.48    0.727   205.91
2042.58    0.729   206.29
2042.68    0.730   206.68
2042.78    0.732   207.07
2042.88    0.734   207.45
2042.98    0.736   207.83
2043.08    0.738   208.21
2043.18    0.739   208.58
2043.28    0.741   208.96
2043.38    0.743   209.33
2043.48    0.745   209.71
2043.58    0.746   210.08
2043.68    0.748   210.44
2043.78    0.750   210.81
2043.88    0.751   211.18
2043.98    0.753   211.54
2044.08    0.755   211.90
2044.18    0.756   212.26
2044.28    0.758   212.62
2044.38    0.759   212.98
2044.48    0.761   213.33
2044.58    0.763   213.69
2044.68    0.764   214.04
2044.78    0.766   214.39
2044.88    0.767   214.74
2044.98    0.769   215.09
2045.08    0.770   215.44
2045.18    0.772   215.79
2045.28    0.773   216.13
2045.38    0.774   216.47
2045.48    0.776   216.82
2045.58    0.777   217.16
2045.68    0.779   217.50
2045.78    0.780   217.84
2045.88    0.781   218.17
2045.98    0.783   218.51
2046.08    0.784   218.84
2046.18    0.785   219.18
2046.28    0.787   219.51
2046.38    0.788   219.84
2046.48    0.789   220.17
2046.58    0.791   220.50
2046.68    0.792   220.83
2046.78    0.793   221.16
2046.88    0.794   221.49
2046.98    0.795   221.81
2047.08    0.797   222.14
2047.18    0.798   222.46
2047.28    0.799   222.78
2047.38    0.800   223.10
2047.48    0.801   223.42
2047.58    0.802   223.74
2047.68    0.803   224.06
2047.78    0.804   224.38
2047.88    0.805   224.70
2047.98    0.806   225.02
2048.08    0.807   225.33
2048.18    0.809   225.65
2048.28    0.809   225.96
2048.38    0.810   226.27
2048.48    0.811   226.59
2048.58    0.812   226.90
2048.68    0.813   227.21
2048.78    0.814   227.52
2048.88    0.815   227.83
2048.98    0.816   228.14
2049.08    0.817   228.45
2049.18    0.818   228.76
2049.28    0.819   229.06
2049.38    0.819   229.37
2049.48    0.820   229.68
2049.58    0.821   229.98
2049.68    0.822   230.29
2049.78    0.822   230.59
2049.88    0.823   230.89
2049.98    0.824   231.20
2050.08    0.825   231.50
2050.18    0.825   231.80
2050.28    0.826   232.10
2050.38    0.827   232.41
2050.48    0.827   232.71
2050.58    0.828   233.01
2050.68    0.829   233.31
2050.78    0.829   233.61
2050.88    0.830   233.90
2050.98    0.830   234.20
2051.08    0.831   234.50
2051.18    0.831   234.80
2051.28    0.832   235.10
2051.38    0.833   235.39
2051.48    0.833   235.69
2051.58    0.833   235.99
2051.68    0.834   236.28
2051.78    0.834   236.58
2051.88    0.835   236.87
2051.98    0.835   237.17
2052.08    0.836   237.46
2052.18    0.836   237.76
2052.28    0.836   238.05
2052.38    0.837   238.34
2052.48    0.837   238.64
2052.58    0.837   238.93
2052.68    0.838   239.22
2052.78    0.838   239.52
2052.88    0.838   239.81
2052.98    0.839   240.10
2053.08    0.839   240.39
2053.18    0.839   240.69
2053.28    0.839   240.98
2053.38    0.839   241.27
2053.48    0.840   241.56
2053.58    0.840   241.85
2053.68    0.840   242.15
2053.78    0.840   242.44
2053.88    0.840   242.73
2053.98    0.840   243.02
2054.08    0.840   243.31
2054.18    0.840   243.60
2054.28    0.841   243.89
2054.38    0.841   244.19
2054.48    0.841   244.48
2054.58    0.841   244.77
2054.68    0.841   245.06
2054.78    0.841   245.35
2054.88    0.841   245.64
2054.98    0.840   245.93
2055.08    0.840   246.22
2055.18    0.840   246.51



 

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 14:56:05


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