Double Star Calculator - Orbit

Orbital Elements for WSI127AB

WDS:	WSI127AB	WDS ID/Discoverer
P:	31.980	Orbital period (years)
a:	0.3907	Semi-major axis (arcseconds)
i:	0.0	Inclination (degrees)
Ω:	284.0	Longitude of ascending node (degrees)
T:	2010.470	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2009.01	Year
End-Year:	2040.99	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI127AB
Position:	093657.83-261011.2	Epoch-2000 right ascension and declination
WDS-ID:	09370-2610	WDS designation
Discoverer Code:	WSI127AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	13.8	Magnitude of the primary
V2:	14.3	Magnitude of the secondary
Equinox:		Equinox
Date:	2019	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2020e	Reference

Double Star Orbit for WSI127AB

WDS 6th Orbit including measures of WSI127AB

-- 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 WSI127AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.391   104.45
--------------------------
2009.01    0.391   267.56
2009.11    0.391   268.69
2009.21    0.391   269.82
2009.31    0.391   270.94
2009.41    0.391   272.07
2009.51    0.391   273.19
2009.61    0.391   274.32
2009.71    0.391   275.44
2009.81    0.391   276.57
2009.91    0.391   277.70
2010.01    0.391   278.82
2010.11    0.391   279.95
2010.21    0.391   281.07
2010.31    0.391   282.20
2010.41    0.391   283.32
2010.51    0.391   284.45
2010.61    0.391   285.58
2010.71    0.391   286.70
2010.81    0.391   287.83
2010.91    0.391   288.95
2011.01    0.391   290.08
2011.11    0.391   291.20
2011.21    0.391   292.33
2011.31    0.391   293.46
2011.41    0.391   294.58
2011.51    0.391   295.71
2011.61    0.391   296.83
2011.71    0.391   297.96
2011.81    0.391   299.08
2011.91    0.391   300.21
2012.01    0.391   301.34
2012.11    0.391   302.46
2012.21    0.391   303.59
2012.31    0.391   304.71
2012.41    0.391   305.84
2012.51    0.391   306.96
2012.61    0.391   308.09
2012.71    0.391   309.22
2012.81    0.391   310.34
2012.91    0.391   311.47
2013.01    0.391   312.59
2013.11    0.391   313.72
2013.21    0.391   314.84
2013.31    0.391   315.97
2013.41    0.391   317.10
2013.51    0.391   318.22
2013.61    0.391   319.35
2013.71    0.391   320.47
2013.81    0.391   321.60
2013.91    0.391   322.72
2014.01    0.391   323.85
2014.11    0.391   324.98
2014.21    0.391   326.10
2014.31    0.391   327.23
2014.41    0.391   328.35
2014.51    0.391   329.48
2014.61    0.391   330.60
2014.71    0.391   331.73
2014.81    0.391   332.86
2014.91    0.391   333.98
2015.01    0.391   335.11
2015.11    0.391   336.23
2015.21    0.391   337.36
2015.31    0.391   338.48
2015.41    0.391   339.61
2015.51    0.391   340.74
2015.61    0.391   341.86
2015.71    0.391   342.99
2015.81    0.391   344.11
2015.91    0.391   345.24
2016.01    0.391   346.36
2016.11    0.391   347.49
2016.21    0.391   348.62
2016.31    0.391   349.74
2016.41    0.391   350.87
2016.51    0.391   351.99
2016.61    0.391   353.12
2016.71    0.391   354.24
2016.81    0.391   355.37
2016.91    0.391   356.50
2017.01    0.391   357.62
2017.11    0.391   358.75
2017.21    0.391   359.87
2017.31    0.391     1.00
2017.41    0.391     2.12
2017.51    0.391     3.25
2017.61    0.391     4.38
2017.71    0.391     5.50
2017.81    0.391     6.63
2017.91    0.391     7.75
2018.01    0.391     8.88
2018.11    0.391    10.00
2018.21    0.391    11.13
2018.31    0.391    12.26
2018.41    0.391    13.38
2018.51    0.391    14.51
2018.61    0.391    15.63
2018.71    0.391    16.76
2018.81    0.391    17.88
2018.91    0.391    19.01
2019.01    0.391    20.14
2019.11    0.391    21.26
2019.21    0.391    22.39
2019.31    0.391    23.51
2019.41    0.391    24.64
2019.51    0.391    25.76
2019.61    0.391    26.89
2019.71    0.391    28.02
2019.81    0.391    29.14
2019.91    0.391    30.27
2020.01    0.391    31.39
2020.11    0.391    32.52
2020.21    0.391    33.64
2020.31    0.391    34.77
2020.41    0.391    35.89
2020.51    0.391    37.02
2020.61    0.391    38.15
2020.71    0.391    39.27
2020.81    0.391    40.40
2020.91    0.391    41.52
2021.01    0.391    42.65
2021.11    0.391    43.77
2021.21    0.391    44.90
2021.31    0.391    46.03
2021.41    0.391    47.15
2021.51    0.391    48.28
2021.61    0.391    49.40
2021.71    0.391    50.53
2021.81    0.391    51.65
2021.91    0.391    52.78
2022.01    0.391    53.91
2022.11    0.391    55.03
2022.21    0.391    56.16
2022.31    0.391    57.28
2022.41    0.391    58.41
2022.51    0.391    59.53
2022.61    0.391    60.66
2022.71    0.391    61.79
2022.81    0.391    62.91
2022.91    0.391    64.04
2023.01    0.391    65.16
2023.11    0.391    66.29
2023.21    0.391    67.41
2023.31    0.391    68.54
2023.41    0.391    69.67
2023.51    0.391    70.79
2023.61    0.391    71.92
2023.71    0.391    73.04
2023.81    0.391    74.17
2023.91    0.391    75.29
2024.01    0.391    76.42
2024.11    0.391    77.55
2024.21    0.391    78.67
2024.31    0.391    79.80
2024.41    0.391    80.92
2024.51    0.391    82.05
2024.61    0.391    83.17
2024.71    0.391    84.30
2024.81    0.391    85.43
2024.91    0.391    86.55
2025.01    0.391    87.68
2025.11    0.391    88.80
2025.21    0.391    89.93
2025.31    0.391    91.05
2025.41    0.391    92.18
2025.51    0.391    93.31
2025.61    0.391    94.43
2025.71    0.391    95.56
2025.81    0.391    96.68
2025.91    0.391    97.81
2026.01    0.391    98.93
2026.11    0.391   100.06
2026.21    0.391   101.19
2026.31    0.391   102.31
2026.41    0.391   103.44
2026.51    0.391   104.56
2026.61    0.391   105.69
2026.71    0.391   106.81
2026.81    0.391   107.94
2026.91    0.391   109.07
2027.01    0.391   110.19
2027.11    0.391   111.32
2027.21    0.391   112.44
2027.31    0.391   113.57
2027.41    0.391   114.69
2027.51    0.391   115.82
2027.61    0.391   116.95
2027.71    0.391   118.07
2027.81    0.391   119.20
2027.91    0.391   120.32
2028.01    0.391   121.45
2028.11    0.391   122.57
2028.21    0.391   123.70
2028.31    0.391   124.83
2028.41    0.391   125.95
2028.51    0.391   127.08
2028.61    0.391   128.20
2028.71    0.391   129.33
2028.81    0.391   130.45
2028.91    0.391   131.58
2029.01    0.391   132.71
2029.11    0.391   133.83
2029.21    0.391   134.96
2029.31    0.391   136.08
2029.41    0.391   137.21
2029.51    0.391   138.33
2029.61    0.391   139.46
2029.71    0.391   140.59
2029.81    0.391   141.71
2029.91    0.391   142.84
2030.01    0.391   143.96
2030.11    0.391   145.09
2030.21    0.391   146.21
2030.31    0.391   147.34
2030.41    0.391   148.47
2030.51    0.391   149.59
2030.61    0.391   150.72
2030.71    0.391   151.84
2030.81    0.391   152.97
2030.91    0.391   154.09
2031.01    0.391   155.22
2031.11    0.391   156.35
2031.21    0.391   157.47
2031.31    0.391   158.60
2031.41    0.391   159.72
2031.51    0.391   160.85
2031.61    0.391   161.97
2031.71    0.391   163.10
2031.81    0.391   164.23
2031.91    0.391   165.35
2032.01    0.391   166.48
2032.11    0.391   167.60
2032.21    0.391   168.73
2032.31    0.391   169.85
2032.41    0.391   170.98
2032.51    0.391   172.11
2032.61    0.391   173.23
2032.71    0.391   174.36
2032.81    0.391   175.48
2032.91    0.391   176.61
2033.01    0.391   177.73
2033.11    0.391   178.86
2033.21    0.391   179.98
2033.31    0.391   181.11
2033.41    0.391   182.24
2033.51    0.391   183.36
2033.61    0.391   184.49
2033.71    0.391   185.61
2033.81    0.391   186.74
2033.91    0.391   187.86
2034.01    0.391   188.99
2034.11    0.391   190.12
2034.21    0.391   191.24
2034.31    0.391   192.37
2034.41    0.391   193.49
2034.51    0.391   194.62
2034.61    0.391   195.74
2034.71    0.391   196.87
2034.81    0.391   198.00
2034.91    0.391   199.12
2035.01    0.391   200.25
2035.11    0.391   201.37
2035.21    0.391   202.50
2035.31    0.391   203.62
2035.41    0.391   204.75
2035.51    0.391   205.88
2035.61    0.391   207.00
2035.71    0.391   208.13
2035.81    0.391   209.25
2035.91    0.391   210.38
2036.01    0.391   211.50
2036.11    0.391   212.63
2036.21    0.391   213.76
2036.31    0.391   214.88
2036.41    0.391   216.01
2036.51    0.391   217.13
2036.61    0.391   218.26
2036.71    0.391   219.38
2036.81    0.391   220.51
2036.91    0.391   221.64
2037.01    0.391   222.76
2037.11    0.391   223.89
2037.21    0.391   225.01
2037.31    0.391   226.14
2037.41    0.391   227.26
2037.51    0.391   228.39
2037.61    0.391   229.52
2037.71    0.391   230.64
2037.81    0.391   231.77
2037.91    0.391   232.89
2038.01    0.391   234.02
2038.11    0.391   235.14
2038.21    0.391   236.27
2038.31    0.391   237.40
2038.41    0.391   238.52
2038.51    0.391   239.65
2038.61    0.391   240.77
2038.71    0.391   241.90
2038.81    0.391   243.02
2038.91    0.391   244.15
2039.01    0.391   245.28
2039.11    0.391   246.40
2039.21    0.391   247.53
2039.31    0.391   248.65
2039.41    0.391   249.78
2039.51    0.391   250.90
2039.61    0.391   252.03
2039.71    0.391   253.16
2039.81    0.391   254.28
2039.91    0.391   255.41
2040.01    0.391   256.53
2040.11    0.391   257.66
2040.21    0.391   258.78
2040.31    0.391   259.91
2040.41    0.391   261.04
2040.51    0.391   262.16
2040.61    0.391   263.29
2040.71    0.391   264.41
2040.81    0.391   265.54
2040.91    0.391   266.66

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 16:19:28