Double Star Calculator - Orbit

Orbital Elements for BTM1AA,AB
WDS: BTM1AA,AB WDS ID/Discoverer
P: 52.800 Orbital period (years)
a: 0.62 Semi-major axis (arcseconds)
i: 137.0 Inclination (degrees)
Ω: 290.0 Longitude of ascending node (degrees)
T: 1958.500 Epoch of periastron passage (year)
e: 0.5 Eccentricity
ω: 231.0 Longitude of periastron (degrees)
Start-Year: 1998.6 Year
End-Year: 2051.4 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BTM1AA,AB
Position: 003919.60+305140.4 Epoch-2000 right ascension and declination
WDS-ID: 00393+3052 WDS designation
Discoverer Code: BTM1AA,AB Discover designation and components
ADS number: 548 Aitken Double Star catalog
HD number: 3627 HD catalog number
Hipparcos number: 3092 Hipparcos catalog number
V1: 3.28 Magnitude of the primary
V2: 10. Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 9 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Gon2002b Reference

Double Star Orbit for BTM1AA,AB



WDS 6th Orbit including measures of BTM1AA,AB

-- 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 BTM1AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.786   276.15
--------------------------
1998.60    0.542   196.10
1998.70    0.541   195.54
1998.80    0.539   194.97
1998.90    0.537   194.39
1999.00    0.535   193.82
1999.10    0.533   193.23
1999.20    0.531   192.65
1999.30    0.529   192.06
1999.40    0.527   191.46
1999.50    0.526   190.86
1999.60    0.524   190.26
1999.70    0.522   189.65
1999.80    0.520   189.04
1999.90    0.518   188.43
2000.00    0.517   187.81
2000.10    0.515   187.18
2000.20    0.513   186.55
2000.30    0.511   185.92
2000.40    0.509   185.28
2000.50    0.508   184.64
2000.60    0.506   184.00
2000.70    0.504   183.34
2000.80    0.503   182.69
2000.90    0.501   182.03
2001.00    0.499   181.37
2001.10    0.497   180.70
2001.20    0.496   180.02
2001.30    0.494   179.35
2001.40    0.493   178.67
2001.50    0.491   177.98
2001.60    0.489   177.29
2001.70    0.488   176.59
2001.80    0.486   175.89
2001.90    0.484   175.19
2002.00    0.483   174.48
2002.10    0.481   173.76
2002.20    0.480   173.04
2002.30    0.478   172.32
2002.40    0.477   171.59
2002.50    0.475   170.86
2002.60    0.473   170.12
2002.70    0.472   169.38
2002.80    0.470   168.63
2002.90    0.469   167.88
2003.00    0.467   167.12
2003.10    0.466   166.36
2003.20    0.464   165.59
2003.30    0.463   164.82
2003.40    0.461   164.04
2003.50    0.460   163.26
2003.60    0.459   162.47
2003.70    0.457   161.68
2003.80    0.456   160.88
2003.90    0.454   160.08
2004.00    0.453   159.27
2004.10    0.451   158.46
2004.20    0.450   157.64
2004.30    0.448   156.82
2004.40    0.447   155.99
2004.50    0.445   155.16
2004.60    0.444   154.32
2004.70    0.442   153.47
2004.80    0.441   152.62
2004.90    0.440   151.76
2005.00    0.438   150.90
2005.10    0.437   150.03
2005.20    0.435   149.16
2005.30    0.433   148.28
2005.40    0.432   147.39
2005.50    0.430   146.50
2005.60    0.429   145.60
2005.70    0.427   144.69
2005.80    0.426   143.78
2005.90    0.424   142.86
2006.00    0.422   141.93
2006.10    0.421   141.00
2006.20    0.419   140.06
2006.30    0.417   139.11
2006.40    0.415   138.15
2006.50    0.414   137.18
2006.60    0.412   136.21
2006.70    0.410   135.23
2006.80    0.408   134.23
2006.90    0.406   133.23
2007.00    0.404   132.22
2007.10    0.402   131.20
2007.20    0.400   130.17
2007.30    0.398   129.12
2007.40    0.396   128.07
2007.50    0.393   127.00
2007.60    0.391   125.92
2007.70    0.389   124.83
2007.80    0.386   123.73
2007.90    0.384   122.61
2008.00    0.381   121.47
2008.10    0.379   120.32
2008.20    0.376   119.16
2008.30    0.373   117.97
2008.40    0.370   116.77
2008.50    0.367   115.55
2008.60    0.364   114.31
2008.70    0.361   113.05
2008.80    0.358   111.77
2008.90    0.355   110.46
2009.00    0.352   109.13
2009.10    0.348   107.77
2009.20    0.345   106.39
2009.30    0.341   104.98
2009.40    0.337   103.53
2009.50    0.334   102.06
2009.60    0.330   100.55
2009.70    0.326    99.01
2009.80    0.322    97.43
2009.90    0.318    95.81
2010.00    0.314    94.15
2010.10    0.310    92.45
2010.20    0.306    90.70
2010.30    0.302    88.91
2010.40    0.298    87.06
2010.50    0.294    85.16
2010.60    0.290    83.21
2010.70    0.286    81.21
2010.80    0.282    79.14
2010.90    0.278    77.02
2011.00    0.274    74.84
2011.10    0.270    72.59
2011.20    0.266    70.28
2011.30    0.263    67.91
2011.40    0.260    65.48
2011.50    0.256    62.98
2011.60    0.253    60.43
2011.70    0.251    57.82
2011.80    0.248    55.15
2011.90    0.246    52.43
2012.00    0.244    49.67
2012.10    0.243    46.86
2012.20    0.241    44.03
2012.30    0.240    41.17
2012.40    0.240    38.29
2012.50    0.240    35.40
2012.60    0.240    32.51
2012.70    0.240    29.63
2012.80    0.241    26.76
2012.90    0.243    23.92
2013.00    0.244    21.12
2013.10    0.246    18.36
2013.20    0.248    15.64
2013.30    0.251    12.98
2013.40    0.254    10.38
2013.50    0.257     7.84
2013.60    0.261     5.37
2013.70    0.265     2.97
2013.80    0.269     0.64
2013.90    0.273   358.38
2014.00    0.278   356.19
2014.10    0.283   354.08
2014.20    0.288   352.04
2014.30    0.293   350.06
2014.40    0.298   348.16
2014.50    0.303   346.32
2014.60    0.309   344.55
2014.70    0.314   342.84
2014.80    0.320   341.19
2014.90    0.326   339.60
2015.00    0.332   338.06
2015.10    0.338   336.58
2015.20    0.344   335.15
2015.30    0.350   333.76
2015.40    0.356   332.43
2015.50    0.362   331.14
2015.60    0.368   329.89
2015.70    0.374   328.68
2015.80    0.380   327.51
2015.90    0.386   326.38
2016.00    0.392   325.28
2016.10    0.398   324.22
2016.20    0.404   323.19
2016.30    0.410   322.19
2016.40    0.416   321.22
2016.50    0.422   320.27
2016.60    0.428   319.36
2016.70    0.434   318.46
2016.80    0.440   317.59
2016.90    0.446   316.75
2017.00    0.452   315.92
2017.10    0.458   315.12
2017.20    0.463   314.34
2017.30    0.469   313.57
2017.40    0.475   312.83
2017.50    0.480   312.10
2017.60    0.486   311.39
2017.70    0.491   310.69
2017.80    0.497   310.01
2017.90    0.502   309.35
2018.00    0.508   308.70
2018.10    0.513   308.06
2018.20    0.518   307.44
2018.30    0.523   306.82
2018.40    0.529   306.22
2018.50    0.534   305.64
2018.60    0.539   305.06
2018.70    0.544   304.49
2018.80    0.549   303.94
2018.90    0.554   303.39
2019.00    0.558   302.85
2019.10    0.563   302.32
2019.20    0.568   301.81
2019.30    0.573   301.30
2019.40    0.577   300.79
2019.50    0.582   300.30
2019.60    0.586   299.81
2019.70    0.591   299.33
2019.80    0.595   298.86
2019.90    0.600   298.40
2020.00    0.604   297.94
2020.10    0.608   297.49
2020.20    0.612   297.04
2020.30    0.617   296.60
2020.40    0.621   296.17
2020.50    0.625   295.74
2020.60    0.629   295.32
2020.70    0.633   294.90
2020.80    0.637   294.49
2020.90    0.640   294.08
2021.00    0.644   293.68
2021.10    0.648   293.28
2021.20    0.652   292.89
2021.30    0.655   292.50
2021.40    0.659   292.11
2021.50    0.662   291.73
2021.60    0.666   291.36
2021.70    0.669   290.98
2021.80    0.673   290.61
2021.90    0.676   290.25
2022.00    0.680   289.89
2022.10    0.683   289.53
2022.20    0.686   289.18
2022.30    0.689   288.83
2022.40    0.692   288.48
2022.50    0.695   288.13
2022.60    0.698   287.79
2022.70    0.701   287.45
2022.80    0.704   287.12
2022.90    0.707   286.78
2023.00    0.710   286.45
2023.10    0.713   286.12
2023.20    0.716   285.80
2023.30    0.719   285.48
2023.40    0.721   285.16
2023.50    0.724   284.84
2023.60    0.727   284.52
2023.70    0.729   284.21
2023.80    0.732   283.90
2023.90    0.734   283.59
2024.00    0.737   283.28
2024.10    0.739   282.98
2024.20    0.741   282.67
2024.30    0.744   282.37
2024.40    0.746   282.07
2024.50    0.748   281.78
2024.60    0.750   281.48
2024.70    0.753   281.19
2024.80    0.755   280.90
2024.90    0.757   280.60
2025.00    0.759   280.32
2025.10    0.761   280.03
2025.20    0.763   279.74
2025.30    0.765   279.46
2025.40    0.767   279.17
2025.50    0.769   278.89
2025.60    0.771   278.61
2025.70    0.772   278.33
2025.80    0.774   278.06
2025.90    0.776   277.78
2026.00    0.778   277.51
2026.10    0.779   277.23
2026.20    0.781   276.96
2026.30    0.783   276.69
2026.40    0.784   276.42
2026.50    0.786   276.15
2026.60    0.787   275.88
2026.70    0.789   275.61
2026.80    0.790   275.34
2026.90    0.791   275.08
2027.00    0.793   274.81
2027.10    0.794   274.55
2027.20    0.795   274.29
2027.30    0.797   274.03
2027.40    0.798   273.76
2027.50    0.799   273.50
2027.60    0.800   273.24
2027.70    0.801   272.99
2027.80    0.803   272.73
2027.90    0.804   272.47
2028.00    0.805   272.21
2028.10    0.806   271.96
2028.20    0.807   271.70
2028.30    0.808   271.45
2028.40    0.809   271.19
2028.50    0.810   270.94
2028.60    0.810   270.69
2028.70    0.811   270.43
2028.80    0.812   270.18
2028.90    0.813   269.93
2029.00    0.814   269.68
2029.10    0.814   269.43
2029.20    0.815   269.18
2029.30    0.816   268.93
2029.40    0.816   268.68
2029.50    0.817   268.43
2029.60    0.818   268.18
2029.70    0.818   267.93
2029.80    0.819   267.69
2029.90    0.819   267.44
2030.00    0.820   267.19
2030.10    0.820   266.94
2030.20    0.821   266.70
2030.30    0.821   266.45
2030.40    0.821   266.21
2030.50    0.822   265.96
2030.60    0.822   265.71
2030.70    0.822   265.47
2030.80    0.823   265.22
2030.90    0.823   264.98
2031.00    0.823   264.73
2031.10    0.823   264.49
2031.20    0.823   264.24
2031.30    0.824   264.00
2031.40    0.824   263.75
2031.50    0.824   263.51
2031.60    0.824   263.26
2031.70    0.824   263.02
2031.80    0.824   262.77
2031.90    0.824   262.53
2032.00    0.824   262.29
2032.10    0.824   262.04
2032.20    0.824   261.80
2032.30    0.824   261.55
2032.40    0.824   261.31
2032.50    0.824   261.06
2032.60    0.823   260.82
2032.70    0.823   260.57
2032.80    0.823   260.33
2032.90    0.823   260.08
2033.00    0.823   259.84
2033.10    0.822   259.59
2033.20    0.822   259.35
2033.30    0.822   259.10
2033.40    0.821   258.85
2033.50    0.821   258.61
2033.60    0.821   258.36
2033.70    0.820   258.12
2033.80    0.820   257.87
2033.90    0.819   257.62
2034.00    0.819   257.37
2034.10    0.818   257.13
2034.20    0.818   256.88
2034.30    0.817   256.63
2034.40    0.817   256.38
2034.50    0.816   256.13
2034.60    0.816   255.88
2034.70    0.815   255.63
2034.80    0.815   255.38
2034.90    0.814   255.13
2035.00    0.813   254.88
2035.10    0.813   254.63
2035.20    0.812   254.38
2035.30    0.811   254.13
2035.40    0.810   253.88
2035.50    0.810   253.62
2035.60    0.809   253.37
2035.70    0.808   253.12
2035.80    0.807   252.86
2035.90    0.806   252.61
2036.00    0.806   252.35
2036.10    0.805   252.09
2036.20    0.804   251.84
2036.30    0.803   251.58
2036.40    0.802   251.32
2036.50    0.801   251.06
2036.60    0.800   250.81
2036.70    0.799   250.55
2036.80    0.798   250.29
2036.90    0.797   250.03
2037.00    0.796   249.76
2037.10    0.795   249.50
2037.20    0.794   249.24
2037.30    0.793   248.97
2037.40    0.792   248.71
2037.50    0.791   248.45
2037.60    0.790   248.18
2037.70    0.789   247.91
2037.80    0.787   247.65
2037.90    0.786   247.38
2038.00    0.785   247.11
2038.10    0.784   246.84
2038.20    0.783   246.57
2038.30    0.781   246.30
2038.40    0.780   246.03
2038.50    0.779   245.75
2038.60    0.778   245.48
2038.70    0.776   245.20
2038.80    0.775   244.93
2038.90    0.774   244.65
2039.00    0.772   244.37
2039.10    0.771   244.09
2039.20    0.770   243.81
2039.30    0.768   243.53
2039.40    0.767   243.25
2039.50    0.766   242.97
2039.60    0.764   242.69
2039.70    0.763   242.40
2039.80    0.761   242.12
2039.90    0.760   241.83
2040.00    0.758   241.54
2040.10    0.757   241.25
2040.20    0.755   240.96
2040.30    0.754   240.67
2040.40    0.752   240.38
2040.50    0.751   240.08
2040.60    0.749   239.79
2040.70    0.748   239.49
2040.80    0.746   239.19
2040.90    0.745   238.89
2041.00    0.743   238.59
2041.10    0.741   238.29
2041.20    0.740   237.99
2041.30    0.738   237.69
2041.40    0.736   237.38
2041.50    0.735   237.07
2041.60    0.733   236.77
2041.70    0.731   236.46
2041.80    0.730   236.15
2041.90    0.728   235.83
2042.00    0.726   235.52
2042.10    0.725   235.20
2042.20    0.723   234.89
2042.30    0.721   234.57
2042.40    0.719   234.25
2042.50    0.718   233.93
2042.60    0.716   233.60
2042.70    0.714   233.28
2042.80    0.712   232.95
2042.90    0.711   232.63
2043.00    0.709   232.30
2043.10    0.707   231.96
2043.20    0.705   231.63
2043.30    0.703   231.30
2043.40    0.701   230.96
2043.50    0.700   230.62
2043.60    0.698   230.28
2043.70    0.696   229.94
2043.80    0.694   229.60
2043.90    0.692   229.25
2044.00    0.690   228.90
2044.10    0.688   228.55
2044.20    0.686   228.20
2044.30    0.685   227.85
2044.40    0.683   227.49
2044.50    0.681   227.14
2044.60    0.679   226.78
2044.70    0.677   226.42
2044.80    0.675   226.05
2044.90    0.673   225.69
2045.00    0.671   225.32
2045.10    0.669   224.95
2045.20    0.667   224.58
2045.30    0.665   224.20
2045.40    0.663   223.83
2045.50    0.661   223.45
2045.60    0.659   223.07
2045.70    0.657   222.68
2045.80    0.655   222.30
2045.90    0.653   221.91
2046.00    0.651   221.52
2046.10    0.649   221.13
2046.20    0.647   220.73
2046.30    0.645   220.33
2046.40    0.643   219.93
2046.50    0.641   219.53
2046.60    0.639   219.13
2046.70    0.637   218.72
2046.80    0.635   218.31
2046.90    0.633   217.89
2047.00    0.631   217.48
2047.10    0.629   217.06
2047.20    0.627   216.64
2047.30    0.625   216.22
2047.40    0.623   215.79
2047.50    0.621   215.36
2047.60    0.619   214.93
2047.70    0.617   214.49
2047.80    0.615   214.05
2047.90    0.613   213.61
2048.00    0.610   213.17
2048.10    0.608   212.72
2048.20    0.606   212.27
2048.30    0.604   211.82
2048.40    0.602   211.36
2048.50    0.600   210.90
2048.60    0.598   210.44
2048.70    0.596   209.98
2048.80    0.594   209.51
2048.90    0.592   209.04
2049.00    0.590   208.56
2049.10    0.588   208.08
2049.20    0.586   207.60
2049.30    0.584   207.12
2049.40    0.582   206.63
2049.50    0.580   206.14
2049.60    0.578   205.64
2049.70    0.576   205.14
2049.80    0.574   204.64
2049.90    0.572   204.13
2050.00    0.570   203.62
2050.10    0.568   203.11
2050.20    0.566   202.59
2050.30    0.564   202.07
2050.40    0.562   201.55
2050.50    0.560   201.02
2050.60    0.558   200.49
2050.70    0.556   199.96
2050.80    0.554   199.42
2050.90    0.552   198.88
2051.00    0.550   198.33
2051.10    0.548   197.78
2051.20    0.546   197.22
2051.30    0.544   196.67
2051.40    0.542   196.10






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 14:41:46



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