Double Star Calculator - Orbit

Orbital Elements for TOK537AA,AB
WDS: TOK537AA,AB WDS ID/Discoverer
P: 29.180 Orbital period (years)
a: 0.32 Semi-major axis (arcseconds)
i: 54.7 Inclination (degrees)
Ω: 158.0 Longitude of ascending node (degrees)
T: 2021.841 Epoch of periastron passage (year)
e: 0.68 Eccentricity
ω: 370.7 Longitude of periastron (degrees)
Start-Year: 2010.41 Year
End-Year: 2039.59 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for TOK537AA,AB
Position: 102817.22-241556.1 Epoch-2000 right ascension and declination
WDS-ID: 10283-2416 WDS designation
Discoverer Code: TOK537AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 51263 Hipparcos catalog number
V1: 9.4 Magnitude of the primary
V2: 11.4 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2023a Reference

Double Star Orbit for TOK537AA,AB



WDS 6th Orbit including measures of TOK537AA,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 TOK537AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.310   318.10
--------------------------
2010.41    0.497   350.54
2010.51    0.495   350.76
2010.61    0.493   350.98
2010.71    0.491   351.20
2010.81    0.489   351.42
2010.91    0.487   351.65
2011.01    0.485   351.87
2011.11    0.483   352.10
2011.21    0.481   352.33
2011.31    0.478   352.57
2011.41    0.476   352.80
2011.51    0.474   353.04
2011.61    0.471   353.28
2011.71    0.469   353.52
2011.81    0.467   353.77
2011.91    0.464   354.01
2012.01    0.462   354.26
2012.11    0.459   354.51
2012.21    0.456   354.77
2012.31    0.454   355.03
2012.41    0.451   355.29
2012.51    0.448   355.56
2012.61    0.445   355.82
2012.71    0.442   356.10
2012.81    0.439   356.37
2012.91    0.436   356.65
2013.01    0.433   356.93
2013.11    0.430   357.22
2013.21    0.427   357.51
2013.31    0.424   357.81
2013.41    0.421   358.11
2013.51    0.417   358.41
2013.61    0.414   358.72
2013.71    0.410   359.04
2013.81    0.407   359.36
2013.91    0.403   359.69
2014.01    0.400     0.02
2014.11    0.396     0.36
2014.21    0.393     0.70
2014.31    0.389     1.05
2014.41    0.385     1.41
2014.51    0.381     1.77
2014.61    0.377     2.14
2014.71    0.374     2.52
2014.81    0.370     2.91
2014.91    0.366     3.31
2015.01    0.361     3.71
2015.11    0.357     4.13
2015.21    0.353     4.55
2015.31    0.349     4.99
2015.41    0.345     5.43
2015.51    0.340     5.89
2015.61    0.336     6.36
2015.71    0.331     6.84
2015.81    0.327     7.33
2015.91    0.322     7.84
2016.01    0.318     8.36
2016.11    0.313     8.90
2016.21    0.308     9.46
2016.31    0.303    10.03
2016.41    0.299    10.62
2016.51    0.294    11.23
2016.61    0.289    11.86
2016.71    0.284    12.52
2016.81    0.279    13.19
2016.91    0.274    13.90
2017.01    0.268    14.63
2017.11    0.263    15.38
2017.21    0.258    16.17
2017.31    0.253    16.99
2017.41    0.247    17.85
2017.51    0.242    18.75
2017.61    0.236    19.68
2017.71    0.231    20.66
2017.81    0.225    21.69
2017.91    0.220    22.77
2018.01    0.214    23.90
2018.11    0.209    25.10
2018.21    0.203    26.36
2018.31    0.198    27.70
2018.41    0.192    29.11
2018.51    0.186    30.61
2018.61    0.181    32.20
2018.71    0.175    33.89
2018.81    0.169    35.70
2018.91    0.164    37.63
2019.01    0.158    39.69
2019.11    0.153    41.90
2019.21    0.148    44.27
2019.31    0.142    46.82
2019.41    0.137    49.56
2019.51    0.132    52.51
2019.61    0.128    55.68
2019.71    0.123    59.08
2019.81    0.119    62.74
2019.91    0.115    66.66
2020.01    0.111    70.84
2020.11    0.108    75.28
2020.21    0.106    79.97
2020.31    0.103    84.89
2020.41    0.101    90.00
2020.51    0.100    95.27
2020.61    0.099   100.65
2020.71    0.099   106.08
2020.81    0.099   111.52
2020.91    0.100   116.93
2021.01    0.101   122.27
2021.11    0.101   127.52
2021.21    0.102   132.66
2021.31    0.103   137.72
2021.41    0.104   142.69
2021.51    0.104   147.63
2021.61    0.104   152.55
2021.71    0.103   157.53
2021.81    0.102   162.62
2021.91    0.100   167.89
2022.01    0.097   173.41
2022.11    0.094   179.25
2022.21    0.091   185.48
2022.31    0.088   192.14
2022.41    0.085   199.25
2022.51    0.083   206.78
2022.61    0.082   214.61
2022.71    0.082   222.61
2022.81    0.082   230.57
2022.91    0.084   238.30
2023.01    0.087   245.61
2023.11    0.091   252.39
2023.21    0.095   258.57
2023.31    0.101   264.15
2023.41    0.106   269.15
2023.51    0.113   273.62
2023.61    0.119   277.61
2023.71    0.126   281.17
2023.81    0.133   284.37
2023.91    0.140   287.25
2024.01    0.147   289.84
2024.11    0.154   292.20
2024.21    0.162   294.34
2024.31    0.169   296.30
2024.41    0.176   298.10
2024.51    0.183   299.76
2024.61    0.190   301.29
2024.71    0.197   302.72
2024.81    0.204   304.04
2024.91    0.211   305.28
2025.01    0.218   306.44
2025.11    0.225   307.53
2025.21    0.232   308.56
2025.31    0.238   309.53
2025.41    0.245   310.45
2025.51    0.251   311.32
2025.61    0.257   312.15
2025.71    0.264   312.94
2025.81    0.270   313.69
2025.91    0.276   314.41
2026.01    0.282   315.10
2026.11    0.288   315.76
2026.21    0.293   316.39
2026.31    0.299   317.00
2026.41    0.305   317.59
2026.51    0.310   318.16
2026.61    0.316   318.70
2026.71    0.321   319.23
2026.81    0.326   319.74
2026.91    0.331   320.24
2027.01    0.336   320.72
2027.11    0.341   321.19
2027.21    0.346   321.64
2027.31    0.351   322.08
2027.41    0.356   322.51
2027.51    0.361   322.92
2027.61    0.365   323.33
2027.71    0.370   323.73
2027.81    0.374   324.11
2027.91    0.379   324.49
2028.01    0.383   324.86
2028.11    0.387   325.22
2028.21    0.391   325.57
2028.31    0.395   325.92
2028.41    0.399   326.26
2028.51    0.403   326.59
2028.61    0.407   326.92
2028.71    0.411   327.24
2028.81    0.415   327.55
2028.91    0.418   327.86
2029.01    0.422   328.16
2029.11    0.426   328.46
2029.21    0.429   328.75
2029.31    0.432   329.04
2029.41    0.436   329.33
2029.51    0.439   329.61
2029.61    0.442   329.88
2029.71    0.445   330.15
2029.81    0.448   330.42
2029.91    0.451   330.69
2030.01    0.454   330.95
2030.11    0.457   331.21
2030.21    0.460   331.46
2030.31    0.463   331.71
2030.41    0.466   331.96
2030.51    0.468   332.20
2030.61    0.471   332.45
2030.71    0.473   332.69
2030.81    0.476   332.93
2030.91    0.478   333.16
2031.01    0.481   333.39
2031.11    0.483   333.62
2031.21    0.485   333.85
2031.31    0.487   334.08
2031.41    0.490   334.30
2031.51    0.492   334.53
2031.61    0.494   334.75
2031.71    0.496   334.97
2031.81    0.498   335.18
2031.91    0.499   335.40
2032.01    0.501   335.61
2032.11    0.503   335.82
2032.21    0.505   336.03
2032.31    0.506   336.24
2032.41    0.508   336.45
2032.51    0.509   336.66
2032.61    0.511   336.86
2032.71    0.512   337.07
2032.81    0.514   337.27
2032.91    0.515   337.47
2033.01    0.516   337.68
2033.11    0.518   337.88
2033.21    0.519   338.08
2033.31    0.520   338.27
2033.41    0.521   338.47
2033.51    0.522   338.67
2033.61    0.523   338.86
2033.71    0.524   339.06
2033.81    0.525   339.25
2033.91    0.526   339.45
2034.01    0.527   339.64
2034.11    0.527   339.83
2034.21    0.528   340.03
2034.31    0.529   340.22
2034.41    0.529   340.41
2034.51    0.530   340.60
2034.61    0.530   340.79
2034.71    0.531   340.98
2034.81    0.531   341.17
2034.91    0.532   341.36
2035.01    0.532   341.55
2035.11    0.532   341.74
2035.21    0.532   341.93
2035.31    0.533   342.12
2035.41    0.533   342.30
2035.51    0.533   342.49
2035.61    0.533   342.68
2035.71    0.533   342.87
2035.81    0.533   343.06
2035.91    0.533   343.25
2036.01    0.533   343.44
2036.11    0.532   343.62
2036.21    0.532   343.81
2036.31    0.532   344.00
2036.41    0.531   344.19
2036.51    0.531   344.38
2036.61    0.531   344.57
2036.71    0.530   344.76
2036.81    0.530   344.95
2036.91    0.529   345.14
2037.01    0.528   345.33
2037.11    0.528   345.53
2037.21    0.527   345.72
2037.31    0.526   345.91
2037.41    0.526   346.11
2037.51    0.525   346.30
2037.61    0.524   346.49
2037.71    0.523   346.69
2037.81    0.522   346.89
2037.91    0.521   347.08
2038.01    0.520   347.28
2038.11    0.519   347.48
2038.21    0.518   347.68
2038.31    0.516   347.88
2038.41    0.515   348.08
2038.51    0.514   348.28
2038.61    0.512   348.48
2038.71    0.511   348.69
2038.81    0.510   348.89
2038.91    0.508   349.10
2039.01    0.507   349.31
2039.11    0.505   349.52
2039.21    0.503   349.73
2039.31    0.502   349.94
2039.41    0.500   350.15
2039.51    0.498   350.37






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 16:28:14



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