Double Star Calculator - Orbit

Orbital Elements for HU1399AB
WDS: HU1399AB WDS ID/Discoverer
P: 67.450 Orbital period (years)
a: 0.946 Semi-major axis (arcseconds)
i: 101.2 Inclination (degrees)
Ω: 126.7 Longitude of ascending node (degrees)
T: 1997.850 Epoch of periastron passage (year)
e: 0.516 Eccentricity
ω: 278.5 Longitude of periastron (degrees)
Start-Year: 1991.275 Year
End-Year: 2058.725 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU1399AB
Position: 060019.69-310154.0 Epoch-2000 right ascension and declination
WDS-ID: 06003-3102 WDS designation
Discoverer Code: HU1399AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 40887 HD catalog number
Hipparcos number: 28442 Hipparcos catalog number
V1: 8.90 Magnitude of the primary
V2: 9.9 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2014a Reference

Double Star Orbit for HU1399AB



WDS 6th Orbit including measures of HU1399AB

-- 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 HU1399AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.277    45.43
--------------------------
1991.28    0.705   305.49
1991.38    0.698   305.33
1991.47    0.692   305.17
1991.57    0.685   305.00
1991.67    0.678   304.83
1991.77    0.671   304.65
1991.87    0.664   304.48
1991.97    0.657   304.29
1992.07    0.650   304.11
1992.17    0.642   303.92
1992.27    0.634   303.72
1992.37    0.626   303.52
1992.47    0.618   303.32
1992.57    0.610   303.11
1992.67    0.602   302.89
1992.77    0.593   302.67
1992.87    0.585   302.44
1992.97    0.576   302.20
1993.07    0.567   301.96
1993.17    0.558   301.71
1993.27    0.548   301.45
1993.37    0.539   301.18
1993.47    0.529   300.90
1993.57    0.519   300.61
1993.67    0.509   300.31
1993.77    0.499   300.00
1993.87    0.488   299.67
1993.97    0.478   299.33
1994.07    0.467   298.97
1994.17    0.456   298.60
1994.27    0.445   298.21
1994.37    0.434   297.80
1994.47    0.422   297.36
1994.57    0.411   296.90
1994.67    0.399   296.42
1994.77    0.387   295.90
1994.87    0.375   295.36
1994.97    0.363   294.77
1995.07    0.350   294.15
1995.17    0.338   293.47
1995.27    0.325   292.75
1995.37    0.312   291.97
1995.47    0.300   291.12
1995.57    0.287   290.19
1995.67    0.273   289.18
1995.77    0.260   288.06
1995.87    0.247   286.83
1995.97    0.234   285.45
1996.07    0.221   283.92
1996.17    0.208   282.18
1996.27    0.195   280.22
1996.37    0.182   277.97
1996.47    0.169   275.37
1996.57    0.156   272.36
1996.67    0.144   268.84
1996.77    0.133   264.69
1996.87    0.122   259.79
1996.97    0.112   253.97
1997.07    0.104   247.13
1997.17    0.097   239.18
1997.27    0.092   230.22
1997.37    0.090   220.52
1997.47    0.090   210.57
1997.57    0.092   200.94
1997.67    0.097   192.08
1997.77    0.105   184.27
1997.87    0.113   177.54
1997.97    0.123   171.84
1998.07    0.134   167.03
1998.17    0.146   162.96
1998.27    0.158   159.50
1998.37    0.170   156.54
1998.47    0.183   153.98
1998.57    0.196   151.77
1998.67    0.209   149.82
1998.77    0.222   148.11
1998.87    0.235   146.59
1998.97    0.248   145.22
1999.07    0.261   144.00
1999.17    0.274   142.89
1999.27    0.287   141.88
1999.37    0.300   140.95
1999.47    0.312   140.10
1999.57    0.325   139.32
1999.67    0.337   138.59
1999.77    0.349   137.92
1999.87    0.361   137.29
1999.97    0.373   136.70
2000.07    0.385   136.14
2000.17    0.396   135.62
2000.27    0.407   135.13
2000.37    0.418   134.66
2000.47    0.429   134.22
2000.57    0.440   133.80
2000.67    0.450   133.40
2000.77    0.460   133.01
2000.87    0.470   132.64
2000.97    0.480   132.29
2001.07    0.489   131.95
2001.17    0.499   131.63
2001.27    0.508   131.31
2001.37    0.517   131.01
2001.47    0.525   130.72
2001.57    0.534   130.44
2001.67    0.542   130.16
2001.77    0.550   129.90
2001.87    0.558   129.64
2001.97    0.566   129.38
2002.07    0.573   129.14
2002.17    0.580   128.90
2002.27    0.588   128.67
2002.37    0.594   128.44
2002.47    0.601   128.22
2002.57    0.608   128.00
2002.67    0.614   127.79
2002.77    0.620   127.58
2002.87    0.626   127.37
2002.97    0.632   127.17
2003.07    0.637   126.98
2003.17    0.643   126.78
2003.27    0.648   126.59
2003.37    0.653   126.40
2003.47    0.658   126.22
2003.57    0.663   126.04
2003.67    0.667   125.86
2003.77    0.672   125.68
2003.87    0.676   125.50
2003.97    0.680   125.33
2004.07    0.684   125.16
2004.17    0.688   124.99
2004.27    0.692   124.82
2004.37    0.695   124.66
2004.47    0.698   124.49
2004.57    0.702   124.33
2004.67    0.705   124.17
2004.77    0.708   124.01
2004.87    0.711   123.85
2004.97    0.713   123.70
2005.07    0.716   123.54
2005.17    0.719   123.39
2005.27    0.721   123.23
2005.37    0.723   123.08
2005.47    0.725   122.93
2005.57    0.727   122.78
2005.67    0.729   122.63
2005.77    0.731   122.48
2005.87    0.733   122.33
2005.97    0.734   122.18
2006.07    0.736   122.04
2006.17    0.737   121.89
2006.27    0.738   121.75
2006.37    0.740   121.60
2006.47    0.741   121.45
2006.57    0.742   121.31
2006.67    0.743   121.17
2006.77    0.743   121.02
2006.87    0.744   120.88
2006.97    0.745   120.73
2007.07    0.745   120.59
2007.17    0.746   120.45
2007.27    0.746   120.31
2007.37    0.746   120.16
2007.47    0.746   120.02
2007.57    0.747   119.88
2007.67    0.747   119.73
2007.77    0.747   119.59
2007.87    0.746   119.45
2007.97    0.746   119.31
2008.07    0.746   119.16
2008.17    0.746   119.02
2008.27    0.745   118.88
2008.37    0.745   118.74
2008.47    0.744   118.59
2008.57    0.744   118.45
2008.67    0.743   118.30
2008.77    0.742   118.16
2008.87    0.741   118.02
2008.97    0.741   117.87
2009.07    0.740   117.73
2009.17    0.739   117.58
2009.27    0.738   117.43
2009.37    0.736   117.29
2009.47    0.735   117.14
2009.57    0.734   116.99
2009.67    0.733   116.85
2009.77    0.731   116.70
2009.87    0.730   116.55
2009.97    0.729   116.40
2010.07    0.727   116.25
2010.17    0.726   116.10
2010.27    0.724   115.95
2010.37    0.722   115.80
2010.47    0.721   115.64
2010.57    0.719   115.49
2010.67    0.717   115.34
2010.77    0.715   115.18
2010.87    0.713   115.03
2010.97    0.712   114.87
2011.07    0.710   114.71
2011.17    0.708   114.55
2011.27    0.706   114.39
2011.37    0.703   114.23
2011.47    0.701   114.07
2011.57    0.699   113.91
2011.67    0.697   113.75
2011.77    0.695   113.58
2011.87    0.692   113.42
2011.97    0.690   113.25
2012.07    0.688   113.08
2012.17    0.685   112.92
2012.27    0.683   112.75
2012.37    0.681   112.58
2012.47    0.678   112.40
2012.57    0.676   112.23
2012.67    0.673   112.06
2012.77    0.670   111.88
2012.87    0.668   111.70
2012.97    0.665   111.52
2013.07    0.662   111.34
2013.17    0.660   111.16
2013.27    0.657   110.98
2013.37    0.654   110.79
2013.47    0.651   110.61
2013.57    0.649   110.42
2013.67    0.646   110.23
2013.77    0.643   110.04
2013.87    0.640   109.84
2013.97    0.637   109.65
2014.07    0.634   109.45
2014.17    0.631   109.25
2014.27    0.628   109.05
2014.37    0.625   108.85
2014.47    0.622   108.65
2014.57    0.619   108.44
2014.67    0.616   108.23
2014.77    0.613   108.02
2014.87    0.610   107.81
2014.97    0.607   107.59
2015.07    0.604   107.38
2015.17    0.600   107.16
2015.27    0.597   106.94
2015.37    0.594   106.71
2015.47    0.591   106.49
2015.57    0.587   106.26
2015.67    0.584   106.03
2015.77    0.581   105.79
2015.87    0.578   105.55
2015.97    0.574   105.31
2016.07    0.571   105.07
2016.17    0.568   104.83
2016.27    0.564   104.58
2016.37    0.561   104.33
2016.47    0.558   104.07
2016.57    0.554   103.82
2016.67    0.551   103.56
2016.77    0.547   103.29
2016.87    0.544   103.03
2016.97    0.541   102.76
2017.07    0.537   102.48
2017.17    0.534   102.21
2017.27    0.530   101.92
2017.37    0.527   101.64
2017.47    0.523   101.35
2017.57    0.520   101.06
2017.67    0.516   100.76
2017.77    0.513   100.46
2017.87    0.509   100.16
2017.97    0.506    99.85
2018.07    0.502    99.54
2018.17    0.499    99.22
2018.27    0.495    98.90
2018.37    0.492    98.57
2018.47    0.488    98.24
2018.57    0.485    97.91
2018.67    0.481    97.57
2018.77    0.478    97.22
2018.87    0.474    96.87
2018.97    0.471    96.52
2019.07    0.467    96.15
2019.17    0.464    95.79
2019.27    0.460    95.42
2019.37    0.457    95.04
2019.47    0.453    94.66
2019.57    0.450    94.27
2019.67    0.446    93.87
2019.77    0.443    93.47
2019.87    0.440    93.06
2019.97    0.436    92.65
2020.07    0.433    92.22
2020.17    0.429    91.80
2020.27    0.426    91.36
2020.37    0.422    90.92
2020.47    0.419    90.47
2020.57    0.416    90.01
2020.67    0.412    89.55
2020.77    0.409    89.08
2020.87    0.406    88.60
2020.97    0.402    88.11
2021.07    0.399    87.62
2021.17    0.396    87.11
2021.27    0.392    86.60
2021.37    0.389    86.08
2021.47    0.386    85.55
2021.57    0.383    85.01
2021.67    0.379    84.47
2021.77    0.376    83.91
2021.87    0.373    83.34
2021.97    0.370    82.77
2022.07    0.367    82.18
2022.17    0.364    81.59
2022.27    0.361    80.98
2022.37    0.358    80.37
2022.47    0.355    79.74
2022.57    0.352    79.11
2022.67    0.349    78.46
2022.77    0.346    77.80
2022.87    0.343    77.13
2022.97    0.341    76.45
2023.07    0.338    75.76
2023.17    0.335    75.06
2023.27    0.332    74.35
2023.37    0.330    73.62
2023.47    0.327    72.88
2023.57    0.325    72.14
2023.67    0.322    71.38
2023.77    0.320    70.60
2023.87    0.317    69.82
2023.97    0.315    69.03
2024.07    0.313    68.22
2024.17    0.310    67.40
2024.27    0.308    66.57
2024.37    0.306    65.73
2024.47    0.304    64.87
2024.57    0.302    64.01
2024.67    0.300    63.13
2024.77    0.298    62.24
2024.87    0.296    61.34
2024.97    0.295    60.43
2025.07    0.293    59.51
2025.17    0.291    58.58
2025.27    0.290    57.64
2025.37    0.288    56.69
2025.47    0.287    55.73
2025.57    0.286    54.76
2025.67    0.284    53.78
2025.77    0.283    52.79
2025.87    0.282    51.80
2025.97    0.281    50.80
2026.07    0.280    49.79
2026.17    0.279    48.77
2026.27    0.278    47.75
2026.37    0.278    46.72
2026.47    0.277    45.69
2026.57    0.277    44.65
2026.67    0.276    43.61
2026.77    0.276    42.57
2026.87    0.276    41.53
2026.97    0.275    40.48
2027.07    0.275    39.43
2027.17    0.275    38.38
2027.27    0.275    37.33
2027.37    0.275    36.28
2027.47    0.276    35.24
2027.57    0.276    34.19
2027.67    0.276    33.15
2027.77    0.277    32.11
2027.87    0.277    31.07
2027.97    0.278    30.04
2028.07    0.279    29.02
2028.17    0.280    28.00
2028.27    0.280    26.99
2028.37    0.281    25.98
2028.47    0.283    24.98
2028.57    0.284    23.99
2028.67    0.285    23.00
2028.77    0.286    22.03
2028.87    0.287    21.06
2028.97    0.289    20.11
2029.07    0.290    19.16
2029.17    0.292    18.22
2029.27    0.294    17.29
2029.37    0.295    16.38
2029.47    0.297    15.47
2029.57    0.299    14.58
2029.67    0.301    13.69
2029.77    0.303    12.82
2029.87    0.305    11.96
2029.97    0.307    11.11
2030.07    0.309    10.28
2030.17    0.311     9.45
2030.27    0.314     8.64
2030.37    0.316     7.83
2030.47    0.318     7.04
2030.57    0.321     6.27
2030.67    0.323     5.50
2030.77    0.326     4.75
2030.87    0.328     4.00
2030.97    0.331     3.27
2031.07    0.334     2.55
2031.17    0.336     1.84
2031.27    0.339     1.15
2031.37    0.342     0.46
2031.47    0.345   359.79
2031.57    0.348   359.12
2031.67    0.351   358.47
2031.77    0.353   357.83
2031.87    0.356   357.20
2031.97    0.359   356.58
2032.07    0.363   355.97
2032.17    0.366   355.37
2032.27    0.369   354.78
2032.37    0.372   354.20
2032.47    0.375   353.63
2032.57    0.378   353.07
2032.67    0.381   352.52
2032.77    0.385   351.98
2032.87    0.388   351.44
2032.97    0.391   350.92
2033.07    0.395   350.41
2033.17    0.398   349.90
2033.27    0.401   349.40
2033.37    0.405   348.91
2033.47    0.408   348.43
2033.57    0.411   347.96
2033.67    0.415   347.49
2033.77    0.418   347.03
2033.87    0.422   346.58
2033.97    0.425   346.14
2034.07    0.429   345.70
2034.17    0.432   345.27
2034.27    0.436   344.85
2034.37    0.439   344.44
2034.47    0.443   344.03
2034.57    0.446   343.63
2034.67    0.450   343.23
2034.77    0.453   342.84
2034.87    0.457   342.46
2034.97    0.461   342.08
2035.07    0.464   341.71
2035.17    0.468   341.34
2035.27    0.471   340.98
2035.37    0.475   340.63
2035.47    0.479   340.28
2035.57    0.482   339.93
2035.67    0.486   339.59
2035.77    0.490   339.26
2035.87    0.493   338.93
2035.97    0.497   338.61
2036.07    0.500   338.29
2036.17    0.504   337.97
2036.27    0.508   337.66
2036.37    0.511   337.36
2036.47    0.515   337.05
2036.57    0.519   336.76
2036.67    0.522   336.46
2036.77    0.526   336.17
2036.87    0.530   335.89
2036.97    0.533   335.61
2037.07    0.537   335.33
2037.17    0.541   335.06
2037.27    0.544   334.79
2037.37    0.548   334.52
2037.47    0.552   334.26
2037.57    0.555   334.00
2037.67    0.559   333.74
2037.77    0.563   333.49
2037.87    0.566   333.24
2037.97    0.570   332.99
2038.07    0.573   332.75
2038.17    0.577   332.51
2038.27    0.581   332.27
2038.37    0.584   332.04
2038.47    0.588   331.81
2038.57    0.591   331.58
2038.67    0.595   331.35
2038.77    0.599   331.13
2038.87    0.602   330.91
2038.97    0.606   330.69
2039.07    0.609   330.48
2039.17    0.613   330.26
2039.27    0.616   330.05
2039.37    0.620   329.84
2039.47    0.623   329.64
2039.57    0.627   329.44
2039.67    0.630   329.23
2039.77    0.634   329.04
2039.87    0.637   328.84
2039.97    0.641   328.64
2040.07    0.644   328.45
2040.17    0.648   328.26
2040.27    0.651   328.07
2040.37    0.655   327.89
2040.47    0.658   327.70
2040.57    0.661   327.52
2040.67    0.665   327.34
2040.77    0.668   327.16
2040.87    0.671   326.98
2040.97    0.675   326.81
2041.07    0.678   326.63
2041.17    0.681   326.46
2041.27    0.685   326.29
2041.37    0.688   326.12
2041.47    0.691   325.95
2041.57    0.694   325.79
2041.67    0.698   325.62
2041.77    0.701   325.46
2041.87    0.704   325.30
2041.97    0.707   325.14
2042.07    0.711   324.98
2042.17    0.714   324.83
2042.27    0.717   324.67
2042.37    0.720   324.52
2042.47    0.723   324.37
2042.57    0.726   324.21
2042.67    0.729   324.06
2042.77    0.732   323.91
2042.87    0.735   323.77
2042.97    0.738   323.62
2043.07    0.741   323.48
2043.17    0.744   323.33
2043.27    0.747   323.19
2043.37    0.750   323.05
2043.47    0.753   322.91
2043.57    0.756   322.77
2043.67    0.759   322.63
2043.77    0.762   322.49
2043.87    0.765   322.35
2043.97    0.767   322.22
2044.07    0.770   322.08
2044.17    0.773   321.95
2044.27    0.776   321.82
2044.37    0.778   321.69
2044.47    0.781   321.56
2044.57    0.784   321.43
2044.67    0.786   321.30
2044.77    0.789   321.17
2044.87    0.792   321.04
2044.97    0.794   320.92
2045.07    0.797   320.79
2045.17    0.799   320.66
2045.27    0.802   320.54
2045.37    0.804   320.42
2045.47    0.807   320.30
2045.57    0.809   320.17
2045.67    0.812   320.05
2045.77    0.814   319.93
2045.87    0.816   319.81
2045.97    0.819   319.69
2046.07    0.821   319.58
2046.17    0.823   319.46
2046.27    0.825   319.34
2046.37    0.827   319.22
2046.47    0.830   319.11
2046.57    0.832   318.99
2046.67    0.834   318.88
2046.77    0.836   318.76
2046.87    0.838   318.65
2046.97    0.840   318.54
2047.07    0.842   318.43
2047.17    0.844   318.31
2047.27    0.846   318.20
2047.37    0.848   318.09
2047.47    0.850   317.98
2047.57    0.851   317.87
2047.67    0.853   317.76
2047.77    0.855   317.65
2047.87    0.857   317.55
2047.97    0.858   317.44
2048.07    0.860   317.33
2048.17    0.862   317.22
2048.27    0.863   317.12
2048.37    0.865   317.01
2048.47    0.866   316.90
2048.57    0.868   316.80
2048.67    0.869   316.69
2048.77    0.871   316.59
2048.87    0.872   316.48
2048.97    0.873   316.38
2049.07    0.874   316.27
2049.17    0.876   316.17
2049.27    0.877   316.07
2049.37    0.878   315.96
2049.47    0.879   315.86
2049.57    0.880   315.76
2049.67    0.881   315.65
2049.77    0.882   315.55
2049.87    0.883   315.45
2049.97    0.884   315.35
2050.07    0.885   315.25
2050.17    0.886   315.15
2050.27    0.886   315.04
2050.37    0.887   314.94
2050.47    0.888   314.84
2050.57    0.888   314.74
2050.67    0.889   314.64
2050.77    0.889   314.54
2050.87    0.890   314.44
2050.97    0.890   314.34
2051.07    0.891   314.24
2051.17    0.891   314.14
2051.27    0.891   314.04
2051.37    0.892   313.94
2051.47    0.892   313.84
2051.57    0.892   313.74
2051.67    0.892   313.64
2051.77    0.892   313.54
2051.87    0.892   313.44
2051.97    0.892   313.34
2052.07    0.891   313.24
2052.17    0.891   313.14
2052.27    0.891   313.04
2052.37    0.891   312.94
2052.47    0.890   312.84
2052.57    0.890   312.74
2052.67    0.889   312.64
2052.77    0.889   312.54
2052.87    0.888   312.44
2052.97    0.887   312.34
2053.07    0.886   312.24
2053.17    0.886   312.13
2053.27    0.885   312.03
2053.37    0.884   311.93
2053.47    0.883   311.83
2053.57    0.882   311.73
2053.67    0.880   311.63
2053.77    0.879   311.52
2053.87    0.878   311.42
2053.97    0.876   311.32
2054.07    0.875   311.21
2054.17    0.873   311.11
2054.27    0.872   311.00
2054.37    0.870   310.90
2054.47    0.868   310.79
2054.57    0.866   310.69
2054.67    0.865   310.58
2054.77    0.863   310.48
2054.87    0.860   310.37
2054.97    0.858   310.26
2055.07    0.856   310.15
2055.17    0.854   310.04
2055.27    0.851   309.94
2055.37    0.849   309.83
2055.47    0.846   309.71
2055.57    0.843   309.60
2055.67    0.841   309.49
2055.77    0.838   309.38
2055.87    0.835   309.26
2055.97    0.832   309.15
2056.07    0.829   309.03
2056.17    0.825   308.92
2056.27    0.822   308.80
2056.37    0.819   308.68
2056.47    0.815   308.56
2056.57    0.811   308.44
2056.67    0.808   308.32
2056.77    0.804   308.20
2056.87    0.800   308.08
2056.97    0.796   307.95
2057.07    0.791   307.83
2057.17    0.787   307.70
2057.27    0.783   307.57
2057.37    0.778   307.44
2057.47    0.774   307.31
2057.57    0.769   307.17
2057.67    0.764   307.04
2057.77    0.759   306.90
2057.87    0.754   306.76
2057.97    0.748   306.62
2058.07    0.743   306.48
2058.17    0.738   306.33
2058.27    0.732   306.19
2058.37    0.726   306.04
2058.47    0.720   305.88
2058.57    0.714   305.73
2058.67    0.708   305.57






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 15:42:36



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