Double Star Calculator - Orbit

Orbital Elements for KAPDEL
WDS: KAPDEL WDS ID/Discoverer
P: 45.000 Orbital period (years)
a: 0.52 Semi-major axis (arcseconds)
i: 107.0 Inclination (degrees)
Ω: 326.0 Longitude of ascending node (degrees)
T: 1971.200 Epoch of periastron passage (year)
e: 0.8 Eccentricity
ω: 8.0 Longitude of periastron (degrees)
Start-Year: 2002.5 Year
End-Year: 2047.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for KAPDEL
Position: 203907.78+100510.3 Epoch-2000 right ascension and declination
WDS-ID: 20391+1005 WDS designation
Discoverer Code: KAPDEL Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 196755 HD catalog number
Hipparcos number: 101916 Hipparcos catalog number
V1: 5.1 Magnitude of the primary
V2: 9.1 > 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: Gon2010 Reference

Double Star Orbit for KAPDEL



WDS 6th Orbit including measures of KAPDEL

-- 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 KAPDEL
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.720   149.91
--------------------------
2002.50    0.780   139.25
2002.60    0.777   139.18
2002.70    0.774   139.12
2002.80    0.771   139.06
2002.90    0.767   138.99
2003.00    0.764   138.93
2003.10    0.761   138.86
2003.20    0.757   138.80
2003.30    0.754   138.73
2003.40    0.751   138.66
2003.50    0.747   138.60
2003.60    0.744   138.53
2003.70    0.740   138.46
2003.80    0.737   138.39
2003.90    0.733   138.32
2004.00    0.729   138.25
2004.10    0.726   138.18
2004.20    0.722   138.10
2004.30    0.718   138.03
2004.40    0.714   137.96
2004.50    0.710   137.88
2004.60    0.707   137.81
2004.70    0.703   137.73
2004.80    0.699   137.65
2004.90    0.695   137.57
2005.00    0.691   137.49
2005.10    0.687   137.41
2005.20    0.682   137.33
2005.30    0.678   137.25
2005.40    0.674   137.17
2005.50    0.670   137.08
2005.60    0.666   137.00
2005.70    0.661   136.91
2005.80    0.657   136.83
2005.90    0.652   136.74
2006.00    0.648   136.65
2006.10    0.643   136.56
2006.20    0.639   136.46
2006.30    0.634   136.37
2006.40    0.630   136.28
2006.50    0.625   136.18
2006.60    0.620   136.08
2006.70    0.615   135.98
2006.80    0.611   135.88
2006.90    0.606   135.78
2007.00    0.601   135.67
2007.10    0.596   135.57
2007.20    0.591   135.46
2007.30    0.586   135.35
2007.40    0.581   135.24
2007.50    0.576   135.13
2007.60    0.570   135.01
2007.70    0.565   134.89
2007.80    0.560   134.77
2007.90    0.554   134.65
2008.00    0.549   134.53
2008.10    0.544   134.40
2008.20    0.538   134.27
2008.30    0.533   134.14
2008.40    0.527   134.00
2008.50    0.521   133.86
2008.60    0.516   133.72
2008.70    0.510   133.58
2008.80    0.504   133.43
2008.90    0.498   133.28
2009.00    0.492   133.12
2009.10    0.486   132.97
2009.20    0.480   132.80
2009.30    0.474   132.64
2009.40    0.468   132.47
2009.50    0.462   132.29
2009.60    0.455   132.11
2009.70    0.449   131.92
2009.80    0.443   131.73
2009.90    0.436   131.54
2010.00    0.430   131.33
2010.10    0.423   131.13
2010.20    0.417   130.91
2010.30    0.410   130.69
2010.40    0.403   130.46
2010.50    0.396   130.22
2010.60    0.389   129.97
2010.70    0.382   129.72
2010.80    0.375   129.46
2010.90    0.368   129.18
2011.00    0.361   128.90
2011.10    0.354   128.60
2011.20    0.347   128.29
2011.30    0.339   127.97
2011.40    0.332   127.63
2011.50    0.324   127.28
2011.60    0.317   126.91
2011.70    0.309   126.52
2011.80    0.301   126.11
2011.90    0.293   125.68
2012.00    0.285   125.23
2012.10    0.277   124.75
2012.20    0.269   124.24
2012.30    0.261   123.70
2012.40    0.253   123.13
2012.50    0.245   122.52
2012.60    0.237   121.86
2012.70    0.228   121.16
2012.80    0.220   120.40
2012.90    0.211   119.58
2013.00    0.202   118.70
2013.10    0.194   117.73
2013.20    0.185   116.67
2013.30    0.176   115.51
2013.40    0.167   114.22
2013.50    0.159   112.79
2013.60    0.150   111.20
2013.70    0.141   109.40
2013.80    0.132   107.36
2013.90    0.123   105.03
2014.00    0.115   102.34
2014.10    0.106    99.22
2014.20    0.098    95.56
2014.30    0.090    91.23
2014.40    0.082    86.09
2014.50    0.075    79.97
2014.60    0.069    72.71
2014.70    0.065    64.22
2014.80    0.061    54.58
2014.90    0.060    44.12
2015.00    0.060    33.39
2015.10    0.062    23.05
2015.20    0.065    13.60
2015.30    0.070     5.29
2015.40    0.076   358.12
2015.50    0.082   351.97
2015.60    0.088   346.67
2015.70    0.093   342.05
2015.80    0.098   337.92
2015.90    0.102   334.15
2016.00    0.104   330.61
2016.10    0.105   327.15
2016.20    0.103   323.65
2016.30    0.099   319.95
2016.40    0.094   315.88
2016.50    0.086   311.20
2016.60    0.078   305.59
2016.70    0.070   298.64
2016.80    0.062   289.79
2016.90    0.055   278.45
2017.00    0.050   264.38
2017.10    0.048   248.36
2017.20    0.050   232.40
2017.30    0.055   218.49
2017.40    0.062   207.40
2017.50    0.071   198.88
2017.60    0.081   192.35
2017.70    0.092   187.28
2017.80    0.103   183.27
2017.90    0.114   180.04
2018.00    0.125   177.37
2018.10    0.136   175.15
2018.20    0.147   173.25
2018.30    0.158   171.63
2018.40    0.169   170.21
2018.50    0.180   168.96
2018.60    0.191   167.86
2018.70    0.201   166.87
2018.80    0.212   165.97
2018.90    0.222   165.17
2019.00    0.232   164.43
2019.10    0.242   163.75
2019.20    0.252   163.13
2019.30    0.261   162.55
2019.40    0.271   162.02
2019.50    0.281   161.52
2019.60    0.290   161.05
2019.70    0.299   160.61
2019.80    0.308   160.20
2019.90    0.317   159.81
2020.00    0.326   159.45
2020.10    0.335   159.10
2020.20    0.343   158.77
2020.30    0.352   158.45
2020.40    0.360   158.15
2020.50    0.368   157.87
2020.60    0.377   157.59
2020.70    0.385   157.33
2020.80    0.393   157.08
2020.90    0.400   156.84
2021.00    0.408   156.61
2021.10    0.416   156.38
2021.20    0.423   156.17
2021.30    0.431   155.96
2021.40    0.438   155.76
2021.50    0.445   155.56
2021.60    0.453   155.38
2021.70    0.460   155.19
2021.80    0.467   155.02
2021.90    0.474   154.85
2022.00    0.481   154.68
2022.10    0.487   154.52
2022.20    0.494   154.36
2022.30    0.501   154.21
2022.40    0.507   154.06
2022.50    0.514   153.91
2022.60    0.520   153.77
2022.70    0.526   153.63
2022.80    0.533   153.49
2022.90    0.539   153.36
2023.00    0.545   153.23
2023.10    0.551   153.11
2023.20    0.557   152.98
2023.30    0.563   152.86
2023.40    0.569   152.74
2023.50    0.574   152.63
2023.60    0.580   152.51
2023.70    0.586   152.40
2023.80    0.591   152.29
2023.90    0.597   152.18
2024.00    0.602   152.08
2024.10    0.608   151.98
2024.20    0.613   151.87
2024.30    0.618   151.77
2024.40    0.623   151.67
2024.50    0.628   151.58
2024.60    0.634   151.48
2024.70    0.639   151.39
2024.80    0.643   151.30
2024.90    0.648   151.21
2025.00    0.653   151.12
2025.10    0.658   151.03
2025.20    0.663   150.94
2025.30    0.667   150.86
2025.40    0.672   150.77
2025.50    0.677   150.69
2025.60    0.681   150.60
2025.70    0.686   150.52
2025.80    0.690   150.44
2025.90    0.694   150.36
2026.00    0.699   150.29
2026.10    0.703   150.21
2026.20    0.707   150.13
2026.30    0.711   150.06
2026.40    0.716   149.98
2026.50    0.720   149.91
2026.60    0.724   149.84
2026.70    0.728   149.76
2026.80    0.732   149.69
2026.90    0.735   149.62
2027.00    0.739   149.55
2027.10    0.743   149.48
2027.20    0.747   149.41
2027.30    0.750   149.35
2027.40    0.754   149.28
2027.50    0.758   149.21
2027.60    0.761   149.15
2027.70    0.765   149.08
2027.80    0.768   149.02
2027.90    0.772   148.95
2028.00    0.775   148.89
2028.10    0.778   148.83
2028.20    0.782   148.77
2028.30    0.785   148.70
2028.40    0.788   148.64
2028.50    0.791   148.58
2028.60    0.795   148.52
2028.70    0.798   148.46
2028.80    0.801   148.40
2028.90    0.804   148.34
2029.00    0.807   148.28
2029.10    0.810   148.23
2029.20    0.813   148.17
2029.30    0.815   148.11
2029.40    0.818   148.05
2029.50    0.821   148.00
2029.60    0.824   147.94
2029.70    0.826   147.89
2029.80    0.829   147.83
2029.90    0.832   147.78
2030.00    0.834   147.72
2030.10    0.837   147.67
2030.20    0.839   147.61
2030.30    0.842   147.56
2030.40    0.844   147.51
2030.50    0.847   147.45
2030.60    0.849   147.40
2030.70    0.851   147.35
2030.80    0.854   147.29
2030.90    0.856   147.24
2031.00    0.858   147.19
2031.10    0.860   147.14
2031.20    0.862   147.09
2031.30    0.864   147.04
2031.40    0.866   146.99
2031.50    0.869   146.94
2031.60    0.870   146.89
2031.70    0.872   146.84
2031.80    0.874   146.79
2031.90    0.876   146.74
2032.00    0.878   146.69
2032.10    0.880   146.64
2032.20    0.882   146.59
2032.30    0.883   146.54
2032.40    0.885   146.49
2032.50    0.887   146.44
2032.60    0.889   146.40
2032.70    0.890   146.35
2032.80    0.892   146.30
2032.90    0.893   146.25
2033.00    0.895   146.20
2033.10    0.896   146.16
2033.20    0.898   146.11
2033.30    0.899   146.06
2033.40    0.900   146.02
2033.50    0.902   145.97
2033.60    0.903   145.92
2033.70    0.904   145.88
2033.80    0.906   145.83
2033.90    0.907   145.78
2034.00    0.908   145.74
2034.10    0.909   145.69
2034.20    0.910   145.65
2034.30    0.911   145.60
2034.40    0.912   145.55
2034.50    0.913   145.51
2034.60    0.914   145.46
2034.70    0.915   145.42
2034.80    0.916   145.37
2034.90    0.917   145.33
2035.00    0.918   145.28
2035.10    0.919   145.24
2035.20    0.920   145.19
2035.30    0.920   145.15
2035.40    0.921   145.10
2035.50    0.922   145.06
2035.60    0.922   145.01
2035.70    0.923   144.97
2035.80    0.924   144.93
2035.90    0.924   144.88
2036.00    0.925   144.84
2036.10    0.925   144.79
2036.20    0.926   144.75
2036.30    0.926   144.70
2036.40    0.927   144.66
2036.50    0.927   144.62
2036.60    0.927   144.57
2036.70    0.928   144.53
2036.80    0.928   144.48
2036.90    0.928   144.44
2037.00    0.928   144.39
2037.10    0.929   144.35
2037.20    0.929   144.31
2037.30    0.929   144.26
2037.40    0.929   144.22
2037.50    0.929   144.17
2037.60    0.929   144.13
2037.70    0.929   144.09
2037.80    0.929   144.04
2037.90    0.929   144.00
2038.00    0.929   143.96
2038.10    0.929   143.91
2038.20    0.929   143.87
2038.30    0.929   143.82
2038.40    0.928   143.78
2038.50    0.928   143.74
2038.60    0.928   143.69
2038.70    0.928   143.65
2038.80    0.927   143.60
2038.90    0.927   143.56
2039.00    0.927   143.51
2039.10    0.926   143.47
2039.20    0.926   143.43
2039.30    0.925   143.38
2039.40    0.925   143.34
2039.50    0.924   143.29
2039.60    0.924   143.25
2039.70    0.923   143.20
2039.80    0.922   143.16
2039.90    0.922   143.11
2040.00    0.921   143.07
2040.10    0.920   143.03
2040.20    0.920   142.98
2040.30    0.919   142.94
2040.40    0.918   142.89
2040.50    0.917   142.85
2040.60    0.916   142.80
2040.70    0.915   142.76
2040.80    0.914   142.71
2040.90    0.914   142.66
2041.00    0.913   142.62
2041.10    0.912   142.57
2041.20    0.910   142.53
2041.30    0.909   142.48
2041.40    0.908   142.44
2041.50    0.907   142.39
2041.60    0.906   142.34
2041.70    0.905   142.30
2041.80    0.903   142.25
2041.90    0.902   142.20
2042.00    0.901   142.16
2042.10    0.900   142.11
2042.20    0.898   142.06
2042.30    0.897   142.02
2042.40    0.895   141.97
2042.50    0.894   141.92
2042.60    0.892   141.87
2042.70    0.891   141.83
2042.80    0.889   141.78
2042.90    0.888   141.73
2043.00    0.886   141.68
2043.10    0.885   141.63
2043.20    0.883   141.59
2043.30    0.881   141.54
2043.40    0.879   141.49
2043.50    0.878   141.44
2043.60    0.876   141.39
2043.70    0.874   141.34
2043.80    0.872   141.29
2043.90    0.870   141.24
2044.00    0.868   141.19
2044.10    0.866   141.14
2044.20    0.864   141.09
2044.30    0.862   141.04
2044.40    0.860   140.99
2044.50    0.858   140.94
2044.60    0.856   140.88
2044.70    0.854   140.83
2044.80    0.852   140.78
2044.90    0.850   140.73
2045.00    0.847   140.67
2045.10    0.845   140.62
2045.20    0.843   140.57
2045.30    0.840   140.51
2045.40    0.838   140.46
2045.50    0.836   140.41
2045.60    0.833   140.35
2045.70    0.831   140.30
2045.80    0.828   140.24
2045.90    0.826   140.19
2046.00    0.823   140.13
2046.10    0.820   140.07
2046.20    0.818   140.02
2046.30    0.815   139.96
2046.40    0.812   139.90
2046.50    0.810   139.85
2046.60    0.807   139.79
2046.70    0.804   139.73
2046.80    0.801   139.67
2046.90    0.798   139.61
2047.00    0.795   139.55
2047.10    0.792   139.49
2047.20    0.789   139.43
2047.30    0.786   139.37
2047.40    0.783   139.31






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 18:17:12



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