Double Star Calculator - Orbit

Orbital Elements for SIG4
WDS: SIG4 WDS ID/Discoverer
P: 54.130 Orbital period (years)
a: 0.501 Semi-major axis (arcseconds)
i: 180.0 Inclination (degrees)
Ω: 105.1 Longitude of ascending node (degrees)
T: 1978.220 Epoch of periastron passage (year)
e: 0.056 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1997.935 Year
End-Year: 2052.065 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for SIG4
Position: 042918.43-312356.8 Epoch-2000 right ascension and declination
WDS-ID: 04293-3124 WDS designation
Discoverer Code: SIG4 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 11.18 Magnitude of the primary
V2: 12.38 Magnitude of the secondary
Equinox: Equinox
Date: 2020 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: Tok2021f Reference

Double Star Orbit for SIG4



WDS 6th Orbit including measures of SIG4

-- 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 SIG4
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.480   148.26
--------------------------
1997.93    0.520   329.37
1998.03    0.521   328.75
1998.13    0.521   328.14
1998.23    0.521   327.52
1998.33    0.521   326.91
1998.43    0.521   326.29
1998.53    0.522   325.68
1998.63    0.522   325.07
1998.73    0.522   324.46
1998.83    0.522   323.85
1998.93    0.522   323.23
1999.03    0.523   322.62
1999.13    0.523   322.01
1999.23    0.523   321.41
1999.33    0.523   320.80
1999.43    0.523   320.19
1999.53    0.524   319.58
1999.63    0.524   318.97
1999.73    0.524   318.36
1999.83    0.524   317.76
1999.93    0.524   317.15
2000.03    0.524   316.54
2000.13    0.525   315.94
2000.23    0.525   315.33
2000.33    0.525   314.73
2000.43    0.525   314.12
2000.53    0.525   313.52
2000.63    0.525   312.92
2000.73    0.526   312.31
2000.83    0.526   311.71
2000.93    0.526   311.11
2001.03    0.526   310.50
2001.13    0.526   309.90
2001.23    0.526   309.30
2001.33    0.526   308.70
2001.43    0.527   308.10
2001.53    0.527   307.50
2001.63    0.527   306.90
2001.73    0.527   306.30
2001.83    0.527   305.70
2001.93    0.527   305.10
2002.03    0.527   304.50
2002.13    0.527   303.90
2002.23    0.527   303.30
2002.33    0.528   302.70
2002.43    0.528   302.10
2002.53    0.528   301.50
2002.63    0.528   300.90
2002.73    0.528   300.31
2002.83    0.528   299.71
2002.93    0.528   299.11
2003.03    0.528   298.51
2003.13    0.528   297.92
2003.23    0.528   297.32
2003.33    0.528   296.72
2003.43    0.528   296.12
2003.53    0.529   295.53
2003.63    0.529   294.93
2003.73    0.529   294.33
2003.83    0.529   293.74
2003.93    0.529   293.14
2004.03    0.529   292.55
2004.13    0.529   291.95
2004.23    0.529   291.35
2004.33    0.529   290.76
2004.43    0.529   290.16
2004.53    0.529   289.57
2004.63    0.529   288.97
2004.73    0.529   288.38
2004.83    0.529   287.78
2004.93    0.529   287.18
2005.03    0.529   286.59
2005.13    0.529   285.99
2005.23    0.529   285.40
2005.33    0.529   284.80
2005.43    0.529   284.21
2005.53    0.529   283.61
2005.63    0.529   283.02
2005.73    0.529   282.42
2005.83    0.529   281.82
2005.93    0.529   281.23
2006.03    0.529   280.63
2006.13    0.529   280.04
2006.23    0.529   279.44
2006.33    0.529   278.85
2006.43    0.529   278.25
2006.53    0.529   277.65
2006.63    0.529   277.06
2006.73    0.529   276.46
2006.83    0.529   275.87
2006.93    0.529   275.27
2007.03    0.529   274.67
2007.13    0.528   274.08
2007.23    0.528   273.48
2007.33    0.528   272.88
2007.43    0.528   272.28
2007.53    0.528   271.69
2007.63    0.528   271.09
2007.73    0.528   270.49
2007.83    0.528   269.89
2007.93    0.528   269.30
2008.03    0.528   268.70
2008.13    0.528   268.10
2008.23    0.528   267.50
2008.33    0.527   266.90
2008.43    0.527   266.30
2008.53    0.527   265.70
2008.63    0.527   265.10
2008.73    0.527   264.50
2008.83    0.527   263.90
2008.93    0.527   263.30
2009.03    0.527   262.70
2009.13    0.527   262.10
2009.23    0.526   261.50
2009.33    0.526   260.90
2009.43    0.526   260.30
2009.53    0.526   259.70
2009.63    0.526   259.09
2009.73    0.526   258.49
2009.83    0.526   257.89
2009.93    0.525   257.28
2010.03    0.525   256.68
2010.13    0.525   256.08
2010.23    0.525   255.47
2010.33    0.525   254.87
2010.43    0.525   254.26
2010.53    0.524   253.66
2010.63    0.524   253.05
2010.73    0.524   252.44
2010.83    0.524   251.84
2010.93    0.524   251.23
2011.03    0.524   250.62
2011.13    0.523   250.01
2011.23    0.523   249.40
2011.33    0.523   248.79
2011.43    0.523   248.19
2011.53    0.523   247.58
2011.63    0.522   246.97
2011.73    0.522   246.35
2011.83    0.522   245.74
2011.93    0.522   245.13
2012.03    0.522   244.52
2012.13    0.521   243.91
2012.23    0.521   243.29
2012.33    0.521   242.68
2012.43    0.521   242.06
2012.53    0.521   241.45
2012.63    0.520   240.83
2012.73    0.520   240.22
2012.83    0.520   239.60
2012.93    0.520   238.98
2013.03    0.519   238.37
2013.13    0.519   237.75
2013.23    0.519   237.13
2013.33    0.519   236.51
2013.43    0.518   235.89
2013.53    0.518   235.27
2013.63    0.518   234.65
2013.73    0.518   234.03
2013.83    0.517   233.41
2013.93    0.517   232.78
2014.03    0.517   232.16
2014.13    0.517   231.53
2014.23    0.516   230.91
2014.33    0.516   230.28
2014.43    0.516   229.66
2014.53    0.516   229.03
2014.63    0.515   228.40
2014.73    0.515   227.78
2014.83    0.515   227.15
2014.93    0.514   226.52
2015.03    0.514   225.89
2015.13    0.514   225.26
2015.23    0.514   224.63
2015.33    0.513   223.99
2015.43    0.513   223.36
2015.53    0.513   222.73
2015.63    0.512   222.09
2015.73    0.512   221.46
2015.83    0.512   220.82
2015.93    0.512   220.18
2016.03    0.511   219.55
2016.13    0.511   218.91
2016.23    0.511   218.27
2016.33    0.510   217.63
2016.43    0.510   216.99
2016.53    0.510   216.35
2016.63    0.509   215.71
2016.73    0.509   215.07
2016.83    0.509   214.42
2016.93    0.509   213.78
2017.03    0.508   213.13
2017.13    0.508   212.49
2017.23    0.508   211.84
2017.33    0.507   211.19
2017.43    0.507   210.55
2017.53    0.507   209.90
2017.63    0.506   209.25
2017.73    0.506   208.60
2017.83    0.506   207.95
2017.93    0.505   207.29
2018.03    0.505   206.64
2018.13    0.505   205.99
2018.23    0.504   205.33
2018.33    0.504   204.68
2018.43    0.504   204.02
2018.53    0.503   203.36
2018.63    0.503   202.71
2018.73    0.503   202.05
2018.83    0.503   201.39
2018.93    0.502   200.73
2019.03    0.502   200.07
2019.13    0.502   199.40
2019.23    0.501   198.74
2019.33    0.501   198.08
2019.43    0.501   197.41
2019.53    0.500   196.75
2019.63    0.500   196.08
2019.73    0.500   195.41
2019.83    0.499   194.74
2019.93    0.499   194.08
2020.03    0.499   193.41
2020.13    0.498   192.73
2020.23    0.498   192.06
2020.33    0.498   191.39
2020.43    0.497   190.72
2020.53    0.497   190.04
2020.63    0.497   189.37
2020.73    0.496   188.69
2020.83    0.496   188.01
2020.93    0.496   187.34
2021.03    0.495   186.66
2021.13    0.495   185.98
2021.23    0.495   185.30
2021.33    0.494   184.62
2021.43    0.494   183.93
2021.53    0.494   183.25
2021.63    0.493   182.57
2021.73    0.493   181.88
2021.83    0.493   181.20
2021.93    0.492   180.51
2022.03    0.492   179.82
2022.13    0.492   179.13
2022.23    0.492   178.44
2022.33    0.491   177.75
2022.43    0.491   177.06
2022.53    0.491   176.37
2022.63    0.490   175.68
2022.73    0.490   174.98
2022.83    0.490   174.29
2022.93    0.489   173.59
2023.03    0.489   172.90
2023.13    0.489   172.20
2023.23    0.488   171.50
2023.33    0.488   170.80
2023.43    0.488   170.10
2023.53    0.488   169.40
2023.63    0.487   168.70
2023.73    0.487   168.00
2023.83    0.487   167.29
2023.93    0.486   166.59
2024.03    0.486   165.89
2024.13    0.486   165.18
2024.23    0.486   164.47
2024.33    0.485   163.77
2024.43    0.485   163.06
2024.53    0.485   162.35
2024.63    0.484   161.64
2024.73    0.484   160.93
2024.83    0.484   160.22
2024.93    0.484   159.51
2025.03    0.483   158.79
2025.13    0.483   158.08
2025.23    0.483   157.37
2025.33    0.483   156.65
2025.43    0.482   155.93
2025.53    0.482   155.22
2025.63    0.482   154.50
2025.73    0.482   153.78
2025.83    0.481   153.06
2025.93    0.481   152.34
2026.03    0.481   151.62
2026.13    0.481   150.90
2026.23    0.480   150.18
2026.33    0.480   149.46
2026.43    0.480   148.73
2026.53    0.480   148.01
2026.63    0.480   147.29
2026.73    0.479   146.56
2026.83    0.479   145.84
2026.93    0.479   145.11
2027.03    0.479   144.38
2027.13    0.478   143.65
2027.23    0.478   142.93
2027.33    0.478   142.20
2027.43    0.478   141.47
2027.53    0.478   140.74
2027.63    0.477   140.01
2027.73    0.477   139.28
2027.83    0.477   138.54
2027.93    0.477   137.81
2028.03    0.477   137.08
2028.13    0.477   136.34
2028.23    0.476   135.61
2028.33    0.476   134.88
2028.43    0.476   134.14
2028.53    0.476   133.41
2028.63    0.476   132.67
2028.73    0.476   131.93
2028.83    0.476   131.20
2028.93    0.475   130.46
2029.03    0.475   129.72
2029.13    0.475   128.98
2029.23    0.475   128.24
2029.33    0.475   127.51
2029.43    0.475   126.77
2029.53    0.475   126.03
2029.63    0.474   125.29
2029.73    0.474   124.55
2029.83    0.474   123.81
2029.93    0.474   123.06
2030.03    0.474   122.32
2030.13    0.474   121.58
2030.23    0.474   120.84
2030.33    0.474   120.10
2030.43    0.474   119.35
2030.53    0.474   118.61
2030.63    0.474   117.87
2030.73    0.473   117.12
2030.83    0.473   116.38
2030.93    0.473   115.64
2031.03    0.473   114.89
2031.13    0.473   114.15
2031.23    0.473   113.41
2031.33    0.473   112.66
2031.43    0.473   111.92
2031.53    0.473   111.17
2031.63    0.473   110.43
2031.73    0.473   109.68
2031.83    0.473   108.94
2031.93    0.473   108.19
2032.03    0.473   107.45
2032.13    0.473   106.70
2032.23    0.473   105.96
2032.33    0.473   105.21
2032.43    0.473   104.47
2032.53    0.473   103.72
2032.63    0.473   102.98
2032.73    0.473   102.23
2032.83    0.473   101.49
2032.93    0.473   100.74
2033.03    0.473   100.00
2033.13    0.473    99.25
2033.23    0.473    98.51
2033.33    0.473    97.76
2033.43    0.473    97.02
2033.53    0.473    96.27
2033.63    0.473    95.53
2033.73    0.473    94.79
2033.83    0.473    94.04
2033.93    0.473    93.30
2034.03    0.474    92.55
2034.13    0.474    91.81
2034.23    0.474    91.07
2034.33    0.474    90.33
2034.43    0.474    89.58
2034.53    0.474    88.84
2034.63    0.474    88.10
2034.73    0.474    87.36
2034.83    0.474    86.62
2034.93    0.474    85.88
2035.03    0.474    85.14
2035.13    0.475    84.40
2035.23    0.475    83.66
2035.33    0.475    82.92
2035.43    0.475    82.18
2035.53    0.475    81.44
2035.63    0.475    80.70
2035.73    0.475    79.96
2035.83    0.475    79.22
2035.93    0.476    78.49
2036.03    0.476    77.75
2036.13    0.476    77.01
2036.23    0.476    76.28
2036.33    0.476    75.54
2036.43    0.476    74.81
2036.53    0.477    74.08
2036.63    0.477    73.34
2036.73    0.477    72.61
2036.83    0.477    71.88
2036.93    0.477    71.14
2037.03    0.477    70.41
2037.13    0.478    69.68
2037.23    0.478    68.95
2037.33    0.478    68.22
2037.43    0.478    67.49
2037.53    0.478    66.76
2037.63    0.479    66.04
2037.73    0.479    65.31
2037.83    0.479    64.58
2037.93    0.479    63.86
2038.03    0.479    63.13
2038.13    0.480    62.41
2038.23    0.480    61.68
2038.33    0.480    60.96
2038.43    0.480    60.24
2038.53    0.481    59.51
2038.63    0.481    58.79
2038.73    0.481    58.07
2038.83    0.481    57.35
2038.93    0.482    56.63
2039.03    0.482    55.92
2039.13    0.482    55.20
2039.23    0.482    54.48
2039.33    0.483    53.76
2039.43    0.483    53.05
2039.53    0.483    52.33
2039.63    0.483    51.62
2039.73    0.484    50.91
2039.83    0.484    50.20
2039.93    0.484    49.48
2040.03    0.484    48.77
2040.13    0.485    48.06
2040.23    0.485    47.35
2040.33    0.485    46.65
2040.43    0.485    45.94
2040.53    0.486    45.23
2040.63    0.486    44.53
2040.73    0.486    43.82
2040.83    0.487    43.12
2040.93    0.487    42.41
2041.03    0.487    41.71
2041.13    0.488    41.01
2041.23    0.488    40.31
2041.33    0.488    39.61
2041.43    0.488    38.91
2041.53    0.489    38.21
2041.63    0.489    37.51
2041.73    0.489    36.82
2041.83    0.490    36.12
2041.93    0.490    35.43
2042.03    0.490    34.73
2042.13    0.491    34.04
2042.23    0.491    33.35
2042.33    0.491    32.65
2042.43    0.491    31.96
2042.53    0.492    31.27
2042.63    0.492    30.59
2042.73    0.492    29.90
2042.83    0.493    29.21
2042.93    0.493    28.52
2043.03    0.493    27.84
2043.13    0.494    27.15
2043.23    0.494    26.47
2043.33    0.494    25.79
2043.43    0.495    25.11
2043.53    0.495    24.43
2043.63    0.495    23.75
2043.73    0.496    23.07
2043.83    0.496    22.39
2043.93    0.496    21.71
2044.03    0.497    21.04
2044.13    0.497    20.36
2044.23    0.497    19.69
2044.33    0.498    19.01
2044.43    0.498    18.34
2044.53    0.498    17.67
2044.63    0.499    17.00
2044.73    0.499    16.33
2044.83    0.499    15.66
2044.93    0.499    14.99
2045.03    0.500    14.32
2045.13    0.500    13.65
2045.23    0.500    12.99
2045.33    0.501    12.32
2045.43    0.501    11.66
2045.53    0.501    10.99
2045.63    0.502    10.33
2045.73    0.502     9.67
2045.83    0.502     9.01
2045.93    0.503     8.35
2046.03    0.503     7.69
2046.13    0.503     7.03
2046.23    0.504     6.38
2046.33    0.504     5.72
2046.43    0.504     5.06
2046.53    0.505     4.41
2046.63    0.505     3.75
2046.73    0.505     3.10
2046.83    0.506     2.45
2046.93    0.506     1.80
2047.03    0.506     1.15
2047.13    0.507     0.50
2047.23    0.507   359.85
2047.33    0.507   359.20
2047.43    0.508   358.55
2047.53    0.508   357.91
2047.63    0.508   357.26
2047.73    0.508   356.61
2047.83    0.509   355.97
2047.93    0.509   355.33
2048.03    0.509   354.68
2048.13    0.510   354.04
2048.23    0.510   353.40
2048.33    0.510   352.76
2048.43    0.511   352.12
2048.53    0.511   351.48
2048.63    0.511   350.84
2048.73    0.511   350.21
2048.83    0.512   349.57
2048.93    0.512   348.93
2049.03    0.512   348.30
2049.13    0.513   347.66
2049.23    0.513   347.03
2049.33    0.513   346.40
2049.43    0.514   345.76
2049.53    0.514   345.13
2049.63    0.514   344.50
2049.73    0.514   343.87
2049.83    0.515   343.24
2049.93    0.515   342.61
2050.03    0.515   341.98
2050.13    0.515   341.36
2050.23    0.516   340.73
2050.33    0.516   340.10
2050.43    0.516   339.48
2050.53    0.517   338.85
2050.63    0.517   338.23
2050.73    0.517   337.60
2050.83    0.517   336.98
2050.93    0.518   336.36
2051.03    0.518   335.74
2051.13    0.518   335.12
2051.23    0.518   334.50
2051.33    0.519   333.88
2051.43    0.519   333.26
2051.53    0.519   332.64
2051.63    0.519   332.02
2051.73    0.520   331.40
2051.83    0.520   330.78
2051.93    0.520   330.17
2052.03    0.520   329.55






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 15:24:46



www.stella-vega.de