Double Star Calculator - Orbit

Orbital Elements for WSI137AA,AB
WDS: WSI137AA,AB WDS ID/Discoverer
P: 38.000 Orbital period (years)
a: 0.49 Semi-major axis (arcseconds)
i: 72.1 Inclination (degrees)
Ω: 39.8 Longitude of ascending node (degrees)
T: 2007.120 Epoch of periastron passage (year)
e: 0.574 Eccentricity
ω: 135.3 Longitude of periastron (degrees)
Start-Year: 2006.0 Year
End-Year: 2044.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for WSI137AA,AB
Position: 222823.42-255407.7 Epoch-2000 right ascension and declination
WDS-ID: 22284-2553 WDS designation
Discoverer Code: WSI137AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 110922 Hipparcos catalog number
V1: 13.2 Magnitude of the primary
V2: 13.2 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2021c Reference

Double Star Orbit for WSI137AA,AB



WDS 6th Orbit including measures of WSI137AA,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 WSI137AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.583    23.53
--------------------------
2006.00    0.072   132.72
2006.10    0.072   143.82
2006.20    0.075   154.35
2006.30    0.081   163.79
2006.40    0.088   171.92
2006.50    0.096   178.77
2006.60    0.105   184.50
2006.70    0.114   189.30
2006.80    0.124   193.36
2006.90    0.134   196.81
2007.00    0.144   199.80
2007.10    0.153   202.40
2007.20    0.163   204.70
2007.30    0.172   206.75
2007.40    0.180   208.60
2007.50    0.188   210.28
2007.60    0.196   211.83
2007.70    0.203   213.26
2007.80    0.210   214.60
2007.90    0.216   215.86
2008.00    0.222   217.06
2008.10    0.227   218.19
2008.20    0.231   219.28
2008.30    0.235   220.33
2008.40    0.239   221.35
2008.50    0.242   222.34
2008.60    0.244   223.31
2008.70    0.246   224.26
2008.80    0.248   225.20
2008.90    0.249   226.12
2009.00    0.250   227.04
2009.10    0.251   227.95
2009.20    0.251   228.86
2009.30    0.251   229.77
2009.40    0.251   230.68
2009.50    0.250   231.59
2009.60    0.249   232.51
2009.70    0.248   233.44
2009.80    0.247   234.37
2009.90    0.245   235.32
2010.00    0.243   236.28
2010.10    0.242   237.25
2010.20    0.240   238.24
2010.30    0.237   239.25
2010.40    0.235   240.27
2010.50    0.233   241.32
2010.60    0.230   242.38
2010.70    0.228   243.47
2010.80    0.225   244.59
2010.90    0.223   245.73
2011.00    0.220   246.90
2011.10    0.217   248.10
2011.20    0.214   249.33
2011.30    0.212   250.59
2011.40    0.209   251.88
2011.50    0.206   253.21
2011.60    0.203   254.57
2011.70    0.201   255.98
2011.80    0.198   257.42
2011.90    0.195   258.90
2012.00    0.193   260.42
2012.10    0.190   261.98
2012.20    0.188   263.58
2012.30    0.185   265.23
2012.40    0.183   266.91
2012.50    0.181   268.64
2012.60    0.179   270.41
2012.70    0.177   272.22
2012.80    0.175   274.07
2012.90    0.173   275.96
2013.00    0.172   277.88
2013.10    0.170   279.84
2013.20    0.169   281.82
2013.30    0.168   283.84
2013.40    0.167   285.88
2013.50    0.166   287.94
2013.60    0.166   290.01
2013.70    0.165   292.10
2013.80    0.165   294.20
2013.90    0.165   296.30
2014.00    0.165   298.40
2014.10    0.166   300.49
2014.20    0.166   302.57
2014.30    0.167   304.64
2014.40    0.168   306.69
2014.50    0.169   308.71
2014.60    0.170   310.71
2014.70    0.171   312.68
2014.80    0.173   314.61
2014.90    0.175   316.50
2015.00    0.177   318.36
2015.10    0.179   320.18
2015.20    0.181   321.95
2015.30    0.183   323.68
2015.40    0.186   325.37
2015.50    0.188   327.01
2015.60    0.191   328.60
2015.70    0.194   330.15
2015.80    0.197   331.65
2015.90    0.200   333.11
2016.00    0.203   334.53
2016.10    0.206   335.90
2016.20    0.209   337.23
2016.30    0.213   338.52
2016.40    0.216   339.76
2016.50    0.220   340.97
2016.60    0.223   342.14
2016.70    0.227   343.27
2016.80    0.230   344.36
2016.90    0.234   345.43
2017.00    0.238   346.45
2017.10    0.242   347.45
2017.20    0.246   348.41
2017.30    0.250   349.34
2017.40    0.254   350.25
2017.50    0.258   351.12
2017.60    0.262   351.97
2017.70    0.266   352.79
2017.80    0.270   353.59
2017.90    0.274   354.37
2018.00    0.278   355.12
2018.10    0.282   355.85
2018.20    0.286   356.56
2018.30    0.290   357.25
2018.40    0.295   357.92
2018.50    0.299   358.57
2018.60    0.303   359.20
2018.70    0.307   359.82
2018.80    0.311     0.41
2018.90    0.315     1.00
2019.00    0.320     1.56
2019.10    0.324     2.12
2019.20    0.328     2.66
2019.30    0.332     3.18
2019.40    0.336     3.69
2019.50    0.341     4.19
2019.60    0.345     4.68
2019.70    0.349     5.16
2019.80    0.353     5.62
2019.90    0.357     6.08
2020.00    0.361     6.52
2020.10    0.365     6.95
2020.20    0.370     7.38
2020.30    0.374     7.79
2020.40    0.378     8.20
2020.50    0.382     8.60
2020.60    0.386     8.98
2020.70    0.390     9.37
2020.80    0.394     9.74
2020.90    0.398    10.10
2021.00    0.402    10.46
2021.10    0.406    10.81
2021.20    0.410    11.16
2021.30    0.414    11.49
2021.40    0.418    11.83
2021.50    0.422    12.15
2021.60    0.425    12.47
2021.70    0.429    12.78
2021.80    0.433    13.09
2021.90    0.437    13.39
2022.00    0.441    13.69
2022.10    0.444    13.98
2022.20    0.448    14.27
2022.30    0.452    14.55
2022.40    0.456    14.83
2022.50    0.459    15.11
2022.60    0.463    15.38
2022.70    0.466    15.64
2022.80    0.470    15.90
2022.90    0.474    16.16
2023.00    0.477    16.41
2023.10    0.481    16.66
2023.20    0.484    16.91
2023.30    0.488    17.15
2023.40    0.491    17.39
2023.50    0.495    17.62
2023.60    0.498    17.86
2023.70    0.501    18.09
2023.80    0.505    18.31
2023.90    0.508    18.54
2024.00    0.511    18.76
2024.10    0.514    18.97
2024.20    0.518    19.19
2024.30    0.521    19.40
2024.40    0.524    19.61
2024.50    0.527    19.82
2024.60    0.530    20.02
2024.70    0.533    20.23
2024.80    0.536    20.43
2024.90    0.539    20.63
2025.00    0.542    20.82
2025.10    0.545    21.01
2025.20    0.548    21.21
2025.30    0.551    21.40
2025.40    0.554    21.58
2025.50    0.556    21.77
2025.60    0.559    21.95
2025.70    0.562    22.14
2025.80    0.565    22.32
2025.90    0.567    22.50
2026.00    0.570    22.67
2026.10    0.572    22.85
2026.20    0.575    23.02
2026.30    0.578    23.19
2026.40    0.580    23.36
2026.50    0.583    23.53
2026.60    0.585    23.70
2026.70    0.587    23.87
2026.80    0.590    24.03
2026.90    0.592    24.20
2027.00    0.594    24.36
2027.10    0.596    24.52
2027.20    0.599    24.68
2027.30    0.601    24.84
2027.40    0.603    25.00
2027.50    0.605    25.16
2027.60    0.607    25.31
2027.70    0.609    25.47
2027.80    0.611    25.62
2027.90    0.613    25.77
2028.00    0.615    25.93
2028.10    0.617    26.08
2028.20    0.619    26.23
2028.30    0.620    26.38
2028.40    0.622    26.52
2028.50    0.624    26.67
2028.60    0.625    26.82
2028.70    0.627    26.97
2028.80    0.629    27.11
2028.90    0.630    27.26
2029.00    0.631    27.40
2029.10    0.633    27.54
2029.20    0.634    27.68
2029.30    0.636    27.83
2029.40    0.637    27.97
2029.50    0.638    28.11
2029.60    0.639    28.25
2029.70    0.641    28.39
2029.80    0.642    28.53
2029.90    0.643    28.67
2030.00    0.644    28.81
2030.10    0.645    28.94
2030.20    0.646    29.08
2030.30    0.647    29.22
2030.40    0.648    29.35
2030.50    0.648    29.49
2030.60    0.649    29.63
2030.70    0.650    29.76
2030.80    0.650    29.90
2030.90    0.651    30.03
2031.00    0.652    30.17
2031.10    0.652    30.30
2031.20    0.653    30.44
2031.30    0.653    30.57
2031.40    0.653    30.71
2031.50    0.654    30.84
2031.60    0.654    30.97
2031.70    0.654    31.11
2031.80    0.654    31.24
2031.90    0.654    31.37
2032.00    0.655    31.51
2032.10    0.655    31.64
2032.20    0.654    31.78
2032.30    0.654    31.91
2032.40    0.654    32.04
2032.50    0.654    32.18
2032.60    0.654    32.31
2032.70    0.653    32.44
2032.80    0.653    32.58
2032.90    0.653    32.71
2033.00    0.652    32.85
2033.10    0.651    32.98
2033.20    0.651    33.12
2033.30    0.650    33.25
2033.40    0.649    33.39
2033.50    0.649    33.52
2033.60    0.648    33.66
2033.70    0.647    33.80
2033.80    0.646    33.93
2033.90    0.645    34.07
2034.00    0.644    34.21
2034.10    0.642    34.35
2034.20    0.641    34.49
2034.30    0.640    34.63
2034.40    0.639    34.77
2034.50    0.637    34.91
2034.60    0.636    35.05
2034.70    0.634    35.19
2034.80    0.632    35.33
2034.90    0.631    35.48
2035.00    0.629    35.62
2035.10    0.627    35.77
2035.20    0.625    35.91
2035.30    0.623    36.06
2035.40    0.621    36.21
2035.50    0.619    36.36
2035.60    0.617    36.51
2035.70    0.614    36.66
2035.80    0.612    36.81
2035.90    0.609    36.96
2036.00    0.607    37.12
2036.10    0.604    37.28
2036.20    0.601    37.43
2036.30    0.599    37.59
2036.40    0.596    37.75
2036.50    0.593    37.91
2036.60    0.590    38.08
2036.70    0.587    38.24
2036.80    0.583    38.41
2036.90    0.580    38.58
2037.00    0.577    38.75
2037.10    0.573    38.92
2037.20    0.570    39.10
2037.30    0.566    39.28
2037.40    0.562    39.46
2037.50    0.558    39.64
2037.60    0.554    39.82
2037.70    0.550    40.01
2037.80    0.546    40.20
2037.90    0.542    40.40
2038.00    0.538    40.59
2038.10    0.533    40.79
2038.20    0.529    40.99
2038.30    0.524    41.20
2038.40    0.519    41.41
2038.50    0.514    41.63
2038.60    0.509    41.84
2038.70    0.504    42.07
2038.80    0.499    42.30
2038.90    0.493    42.53
2039.00    0.488    42.77
2039.10    0.482    43.01
2039.20    0.477    43.26
2039.30    0.471    43.51
2039.40    0.465    43.77
2039.50    0.459    44.04
2039.60    0.453    44.32
2039.70    0.446    44.60
2039.80    0.440    44.89
2039.90    0.433    45.19
2040.00    0.426    45.50
2040.10    0.419    45.82
2040.20    0.412    46.16
2040.30    0.405    46.50
2040.40    0.398    46.85
2040.50    0.390    47.22
2040.60    0.382    47.61
2040.70    0.375    48.01
2040.80    0.367    48.42
2040.90    0.359    48.86
2041.00    0.350    49.31
2041.10    0.342    49.79
2041.20    0.333    50.30
2041.30    0.324    50.83
2041.40    0.315    51.38
2041.50    0.306    51.98
2041.60    0.297    52.61
2041.70    0.288    53.28
2041.80    0.278    53.99
2041.90    0.268    54.76
2042.00    0.258    55.59
2042.10    0.248    56.48
2042.20    0.238    57.45
2042.30    0.228    58.51
2042.40    0.217    59.67
2042.50    0.206    60.95
2042.60    0.196    62.36
2042.70    0.185    63.95
2042.80    0.174    65.73
2042.90    0.163    67.76
2043.00    0.152    70.07
2043.10    0.141    72.75
2043.20    0.130    75.87
2043.30    0.120    79.54
2043.40    0.110    83.90
2043.50    0.100    89.12
2043.60    0.091    95.39
2043.70    0.084   102.89
2043.80    0.078   111.73
2043.90    0.074   121.80






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 18:40:23



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