Double Star Calculator - Orbit

Orbital Elements for HEN4
WDS: HEN4 WDS ID/Discoverer
P: 50.787 Orbital period (years)
a: 2.5021 Semi-major axis (arcseconds)
i: 78.9718 Inclination (degrees)
Ω: 85.7961 Longitude of ascending node (degrees)
T: 2020.134 Epoch of periastron passage (year)
e: 0.80091 Eccentricity
ω: 83.2061 Longitude of periastron (degrees)
Start-Year: 1999.6062825 Year
End-Year: 2050.3937175 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HEN4
Position: 063046.61-764309.0 Epoch-2000 right ascension and declination
WDS-ID: 06308-7643 WDS designation
Discoverer Code: HEN4 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 15.5 Magnitude of the primary
V2: 15.7 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Kpp2020f Reference

Double Star Orbit for HEN4



WDS 6th Orbit including measures of HEN4

-- 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 HEN4
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.766   277.40
--------------------------
1999.61    0.841   354.14
1999.71    0.840   354.86
1999.81    0.839   355.58
1999.91    0.838   356.31
2000.01    0.837   357.03
2000.11    0.836   357.76
2000.21    0.836   358.49
2000.31    0.835   359.21
2000.41    0.835   359.94
2000.51    0.834     0.67
2000.61    0.834     1.40
2000.71    0.834     2.13
2000.81    0.834     2.86
2000.91    0.835     3.59
2001.01    0.835     4.32
2001.11    0.835     5.05
2001.21    0.836     5.78
2001.31    0.836     6.51
2001.41    0.837     7.23
2001.51    0.838     7.96
2001.61    0.839     8.68
2001.71    0.840     9.40
2001.81    0.841    10.12
2001.91    0.843    10.84
2002.01    0.844    11.55
2002.11    0.845    12.26
2002.21    0.847    12.97
2002.31    0.849    13.68
2002.41    0.851    14.39
2002.51    0.852    15.09
2002.61    0.854    15.78
2002.71    0.857    16.48
2002.81    0.859    17.17
2002.91    0.861    17.86
2003.01    0.863    18.54
2003.11    0.866    19.22
2003.21    0.868    19.90
2003.31    0.871    20.57
2003.41    0.874    21.24
2003.51    0.877    21.90
2003.61    0.880    22.56
2003.71    0.883    23.21
2003.81    0.886    23.86
2003.91    0.889    24.51
2004.01    0.892    25.15
2004.11    0.896    25.79
2004.21    0.899    26.42
2004.31    0.902    27.05
2004.41    0.906    27.67
2004.51    0.910    28.28
2004.61    0.913    28.90
2004.71    0.917    29.50
2004.81    0.921    30.10
2004.91    0.925    30.70
2005.01    0.929    31.29
2005.11    0.933    31.88
2005.21    0.937    32.46
2005.31    0.941    33.04
2005.41    0.946    33.61
2005.51    0.950    34.17
2005.61    0.954    34.73
2005.71    0.959    35.29
2005.81    0.963    35.84
2005.91    0.967    36.39
2006.01    0.972    36.93
2006.11    0.977    37.46
2006.21    0.981    37.99
2006.31    0.986    38.52
2006.41    0.991    39.04
2006.51    0.995    39.55
2006.61    1.000    40.06
2006.71    1.005    40.57
2006.81    1.010    41.07
2006.91    1.015    41.57
2007.01    1.020    42.06
2007.11    1.025    42.55
2007.21    1.030    43.03
2007.31    1.035    43.50
2007.41    1.040    43.98
2007.51    1.045    44.44
2007.61    1.050    44.91
2007.71    1.055    45.37
2007.81    1.060    45.82
2007.91    1.065    46.27
2008.01    1.070    46.72
2008.11    1.075    47.16
2008.21    1.080    47.60
2008.31    1.086    48.03
2008.41    1.091    48.46
2008.51    1.096    48.89
2008.61    1.101    49.31
2008.71    1.106    49.72
2008.81    1.111    50.14
2008.91    1.116    50.55
2009.01    1.122    50.95
2009.11    1.127    51.36
2009.21    1.132    51.75
2009.31    1.137    52.15
2009.41    1.142    52.54
2009.51    1.147    52.93
2009.61    1.152    53.31
2009.71    1.157    53.70
2009.81    1.162    54.07
2009.91    1.167    54.45
2010.01    1.172    54.82
2010.11    1.177    55.19
2010.21    1.182    55.55
2010.31    1.187    55.92
2010.41    1.192    56.27
2010.51    1.197    56.63
2010.61    1.201    56.98
2010.71    1.206    57.34
2010.81    1.211    57.68
2010.91    1.215    58.03
2011.01    1.220    58.37
2011.11    1.224    58.71
2011.21    1.229    59.05
2011.31    1.233    59.39
2011.41    1.238    59.72
2011.51    1.242    60.05
2011.61    1.246    60.38
2011.71    1.250    60.70
2011.81    1.254    61.03
2011.91    1.258    61.35
2012.01    1.262    61.67
2012.11    1.266    61.99
2012.21    1.270    62.30
2012.31    1.274    62.62
2012.41    1.277    62.93
2012.51    1.281    63.24
2012.61    1.284    63.55
2012.71    1.287    63.86
2012.81    1.291    64.16
2012.91    1.294    64.47
2013.01    1.297    64.77
2013.11    1.300    65.07
2013.21    1.302    65.37
2013.31    1.305    65.67
2013.41    1.307    65.97
2013.51    1.310    66.27
2013.61    1.312    66.56
2013.71    1.314    66.86
2013.81    1.316    67.15
2013.91    1.317    67.44
2014.01    1.319    67.74
2014.11    1.320    68.03
2014.21    1.322    68.32
2014.31    1.323    68.61
2014.41    1.323    68.90
2014.51    1.324    69.19
2014.61    1.324    69.48
2014.71    1.325    69.77
2014.81    1.325    70.06
2014.91    1.324    70.35
2015.01    1.324    70.64
2015.11    1.323    70.93
2015.21    1.322    71.22
2015.31    1.321    71.51
2015.41    1.319    71.80
2015.51    1.317    72.10
2015.61    1.315    72.39
2015.71    1.312    72.69
2015.81    1.309    72.98
2015.91    1.306    73.28
2016.01    1.302    73.58
2016.11    1.298    73.88
2016.21    1.294    74.18
2016.31    1.289    74.49
2016.41    1.283    74.79
2016.51    1.277    75.10
2016.61    1.271    75.42
2016.71    1.264    75.73
2016.81    1.256    76.05
2016.91    1.248    76.38
2017.01    1.239    76.71
2017.11    1.229    77.04
2017.21    1.219    77.38
2017.31    1.208    77.72
2017.41    1.196    78.08
2017.51    1.183    78.43
2017.61    1.170    78.80
2017.71    1.155    79.18
2017.81    1.139    79.56
2017.91    1.122    79.96
2018.01    1.104    80.37
2018.11    1.084    80.80
2018.21    1.063    81.24
2018.31    1.040    81.70
2018.41    1.016    82.18
2018.51    0.989    82.68
2018.61    0.960    83.22
2018.71    0.930    83.79
2018.81    0.896    84.40
2018.91    0.860    85.06
2019.01    0.820    85.78
2019.11    0.778    86.57
2019.21    0.731    87.47
2019.31    0.680    88.49
2019.41    0.625    89.68
2019.51    0.565    91.12
2019.61    0.500    92.91
2019.71    0.430    95.28
2019.81    0.355    98.60
2019.91    0.276   103.78
2020.01    0.197   113.13
2020.11    0.126   133.99
2020.21    0.096   180.89
2020.31    0.139   222.38
2020.41    0.213   239.74
2020.51    0.293   247.87
2020.61    0.373   252.52
2020.71    0.449   255.56
2020.81    0.521   257.73
2020.91    0.589   259.38
2021.01    0.653   260.70
2021.11    0.713   261.79
2021.21    0.769   262.72
2021.31    0.822   263.52
2021.41    0.872   264.23
2021.51    0.919   264.86
2021.61    0.963   265.44
2021.71    1.004   265.96
2021.81    1.044   266.45
2021.91    1.081   266.90
2022.01    1.116   267.32
2022.11    1.149   267.72
2022.21    1.181   268.09
2022.31    1.211   268.45
2022.41    1.239   268.78
2022.51    1.267   269.11
2022.61    1.293   269.42
2022.71    1.317   269.72
2022.81    1.341   270.00
2022.91    1.364   270.28
2023.01    1.385   270.55
2023.11    1.406   270.81
2023.21    1.426   271.07
2023.31    1.445   271.31
2023.41    1.463   271.55
2023.51    1.480   271.79
2023.61    1.497   272.02
2023.71    1.512   272.24
2023.81    1.528   272.46
2023.91    1.542   272.68
2024.01    1.556   272.89
2024.11    1.570   273.10
2024.21    1.583   273.30
2024.31    1.595   273.50
2024.41    1.607   273.70
2024.51    1.618   273.90
2024.61    1.629   274.09
2024.71    1.640   274.28
2024.81    1.650   274.47
2024.91    1.659   274.65
2025.01    1.668   274.84
2025.11    1.677   275.02
2025.21    1.686   275.20
2025.31    1.694   275.38
2025.41    1.701   275.55
2025.51    1.709   275.73
2025.61    1.716   275.90
2025.71    1.723   276.07
2025.81    1.729   276.24
2025.91    1.735   276.41
2026.01    1.741   276.58
2026.11    1.747   276.75
2026.21    1.752   276.92
2026.31    1.757   277.08
2026.41    1.762   277.24
2026.51    1.766   277.41
2026.61    1.770   277.57
2026.71    1.774   277.73
2026.81    1.778   277.89
2026.91    1.782   278.05
2027.01    1.785   278.21
2027.11    1.788   278.37
2027.21    1.791   278.53
2027.31    1.794   278.69
2027.41    1.796   278.85
2027.51    1.799   279.01
2027.61    1.801   279.16
2027.71    1.803   279.32
2027.81    1.804   279.47
2027.91    1.806   279.63
2028.01    1.808   279.79
2028.11    1.809   279.94
2028.21    1.810   280.10
2028.31    1.811   280.25
2028.41    1.812   280.41
2028.51    1.812   280.56
2028.61    1.813   280.72
2028.71    1.813   280.87
2028.81    1.813   281.03
2028.91    1.813   281.18
2029.01    1.813   281.34
2029.11    1.813   281.49
2029.21    1.812   281.64
2029.31    1.812   281.80
2029.41    1.811   281.95
2029.51    1.811   282.11
2029.61    1.810   282.26
2029.71    1.809   282.42
2029.81    1.808   282.58
2029.91    1.806   282.73
2030.01    1.805   282.89
2030.11    1.804   283.04
2030.21    1.802   283.20
2030.31    1.800   283.36
2030.41    1.799   283.51
2030.51    1.797   283.67
2030.61    1.795   283.83
2030.71    1.793   283.99
2030.81    1.790   284.14
2030.91    1.788   284.30
2031.01    1.786   284.46
2031.11    1.783   284.62
2031.21    1.781   284.78
2031.31    1.778   284.94
2031.41    1.775   285.10
2031.51    1.773   285.27
2031.61    1.770   285.43
2031.71    1.767   285.59
2031.81    1.764   285.75
2031.91    1.761   285.92
2032.01    1.757   286.08
2032.11    1.754   286.25
2032.21    1.751   286.41
2032.31    1.747   286.58
2032.41    1.744   286.74
2032.51    1.740   286.91
2032.61    1.737   287.08
2032.71    1.733   287.25
2032.81    1.729   287.42
2032.91    1.725   287.59
2033.01    1.721   287.76
2033.11    1.717   287.93
2033.21    1.713   288.10
2033.31    1.709   288.28
2033.41    1.705   288.45
2033.51    1.701   288.63
2033.61    1.696   288.80
2033.71    1.692   288.98
2033.81    1.688   289.16
2033.91    1.683   289.34
2034.01    1.679   289.52
2034.11    1.674   289.70
2034.21    1.669   289.88
2034.31    1.665   290.06
2034.41    1.660   290.25
2034.51    1.655   290.43
2034.61    1.650   290.62
2034.71    1.646   290.81
2034.81    1.641   290.99
2034.91    1.636   291.18
2035.01    1.631   291.37
2035.11    1.626   291.57
2035.21    1.621   291.76
2035.31    1.615   291.95
2035.41    1.610   292.15
2035.51    1.605   292.35
2035.61    1.600   292.54
2035.71    1.594   292.74
2035.81    1.589   292.94
2035.91    1.584   293.15
2036.01    1.578   293.35
2036.11    1.573   293.55
2036.21    1.567   293.76
2036.31    1.562   293.97
2036.41    1.556   294.18
2036.51    1.551   294.39
2036.61    1.545   294.60
2036.71    1.539   294.81
2036.81    1.534   295.03
2036.91    1.528   295.25
2037.01    1.522   295.46
2037.11    1.516   295.68
2037.21    1.511   295.91
2037.31    1.505   296.13
2037.41    1.499   296.35
2037.51    1.493   296.58
2037.61    1.487   296.81
2037.71    1.481   297.04
2037.81    1.475   297.27
2037.91    1.469   297.51
2038.01    1.463   297.75
2038.11    1.457   297.98
2038.21    1.451   298.22
2038.31    1.445   298.47
2038.41    1.439   298.71
2038.51    1.433   298.96
2038.61    1.427   299.21
2038.71    1.421   299.46
2038.81    1.414   299.71
2038.91    1.408   299.96
2039.01    1.402   300.22
2039.11    1.396   300.48
2039.21    1.390   300.74
2039.31    1.384   301.01
2039.41    1.377   301.28
2039.51    1.371   301.54
2039.61    1.365   301.82
2039.71    1.359   302.09
2039.81    1.352   302.37
2039.91    1.346   302.65
2040.01    1.340   302.93
2040.11    1.333   303.21
2040.21    1.327   303.50
2040.31    1.321   303.79
2040.41    1.315   304.08
2040.51    1.308   304.38
2040.61    1.302   304.68
2040.71    1.296   304.98
2040.81    1.289   305.28
2040.91    1.283   305.59
2041.01    1.277   305.90
2041.11    1.270   306.21
2041.21    1.264   306.53
2041.31    1.258   306.85
2041.41    1.252   307.17
2041.51    1.245   307.50
2041.61    1.239   307.83
2041.71    1.233   308.16
2041.81    1.226   308.50
2041.91    1.220   308.84
2042.01    1.214   309.18
2042.11    1.208   309.53
2042.21    1.201   309.88
2042.31    1.195   310.23
2042.41    1.189   310.59
2042.51    1.183   310.95
2042.61    1.177   311.31
2042.71    1.171   311.68
2042.81    1.164   312.06
2042.91    1.158   312.43
2043.01    1.152   312.81
2043.11    1.146   313.20
2043.21    1.140   313.59
2043.31    1.134   313.98
2043.41    1.128   314.38
2043.51    1.122   314.78
2043.61    1.116   315.19
2043.71    1.110   315.60
2043.81    1.104   316.01
2043.91    1.098   316.43
2044.01    1.093   316.85
2044.11    1.087   317.28
2044.21    1.081   317.71
2044.31    1.075   318.15
2044.41    1.070   318.59
2044.51    1.064   319.04
2044.61    1.058   319.49
2044.71    1.053   319.95
2044.81    1.047   320.41
2044.91    1.042   320.88
2045.01    1.036   321.35
2045.11    1.031   321.82
2045.21    1.025   322.30
2045.31    1.020   322.79
2045.41    1.015   323.28
2045.51    1.009   323.78
2045.61    1.004   324.28
2045.71    0.999   324.79
2045.81    0.994   325.30
2045.91    0.989   325.81
2046.01    0.984   326.34
2046.11    0.979   326.86
2046.21    0.974   327.40
2046.31    0.969   327.94
2046.41    0.965   328.48
2046.51    0.960   329.03
2046.61    0.955   329.58
2046.71    0.951   330.14
2046.81    0.946   330.71
2046.91    0.942   331.28
2047.01    0.938   331.85
2047.11    0.933   332.43
2047.21    0.929   333.02
2047.31    0.925   333.61
2047.41    0.921   334.21
2047.51    0.917   334.81
2047.61    0.913   335.42
2047.71    0.909   336.03
2047.81    0.905   336.65
2047.91    0.902   337.27
2048.01    0.898   337.90
2048.11    0.895   338.53
2048.21    0.891   339.17
2048.31    0.888   339.81
2048.41    0.885   340.45
2048.51    0.882   341.11
2048.61    0.879   341.76
2048.71    0.876   342.42
2048.81    0.873   343.09
2048.91    0.870   343.76
2049.01    0.867   344.43
2049.11    0.865   345.11
2049.21    0.862   345.79
2049.31    0.860   346.48
2049.41    0.858   347.17
2049.51    0.855   347.86
2049.61    0.853   348.55
2049.71    0.851   349.25
2049.81    0.850   349.96
2049.91    0.848   350.66
2050.01    0.846   351.37
2050.11    0.845   352.08
2050.21    0.843   352.80
2050.31    0.842   353.51






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 15:47:29



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