Double Star Calculator - Orbit

Orbital Elements for HDS620
WDS: HDS620 WDS ID/Discoverer
P: 60.230 Orbital period (years)
a: 0.449 Semi-major axis (arcseconds)
i: 180.0 Inclination (degrees)
Ω: 66.7 Longitude of ascending node (degrees)
T: 2017.300 Epoch of periastron passage (year)
e: 0.31 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1994.885 Year
End-Year: 2055.115 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS620
Position: 044913.27-312535.5 Epoch-2000 right ascension and declination
WDS-ID: 04492-3126 WDS designation
Discoverer Code: HDS620 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 30774 HD catalog number
Hipparcos number: 22395 Hipparcos catalog number
V1: 8.05 Magnitude of the primary
V2: 11.62 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 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: Tok2017c Reference

Double Star Orbit for HDS620



WDS 6th Orbit including measures of HDS620

-- 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 HDS620
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.406   336.78
--------------------------
1994.88    0.562   220.42
1994.98    0.561   220.05
1995.08    0.561   219.69
1995.18    0.560   219.32
1995.28    0.559   218.96
1995.38    0.559   218.59
1995.48    0.558   218.22
1995.58    0.557   217.86
1995.68    0.556   217.49
1995.78    0.556   217.12
1995.88    0.555   216.74
1995.98    0.554   216.37
1996.08    0.553   216.00
1996.18    0.553   215.62
1996.28    0.552   215.25
1996.38    0.551   214.87
1996.48    0.550   214.49
1996.58    0.549   214.11
1996.68    0.549   213.73
1996.78    0.548   213.35
1996.88    0.547   212.97
1996.98    0.546   212.59
1997.08    0.545   212.20
1997.18    0.544   211.81
1997.28    0.543   211.43
1997.38    0.542   211.04
1997.48    0.542   210.65
1997.58    0.541   210.26
1997.68    0.540   209.86
1997.78    0.539   209.47
1997.88    0.538   209.08
1997.98    0.537   208.68
1998.08    0.536   208.28
1998.18    0.535   207.88
1998.28    0.534   207.48
1998.38    0.533   207.08
1998.48    0.532   206.67
1998.58    0.531   206.27
1998.68    0.530   205.86
1998.78    0.529   205.45
1998.88    0.528   205.04
1998.98    0.527   204.63
1999.08    0.526   204.22
1999.18    0.525   203.81
1999.28    0.524   203.39
1999.38    0.523   202.97
1999.48    0.522   202.55
1999.58    0.521   202.13
1999.68    0.520   201.71
1999.78    0.519   201.28
1999.88    0.518   200.86
1999.98    0.517   200.43
2000.08    0.515   200.00
2000.18    0.514   199.56
2000.28    0.513   199.13
2000.38    0.512   198.69
2000.48    0.511   198.26
2000.58    0.510   197.82
2000.68    0.509   197.37
2000.78    0.507   196.93
2000.88    0.506   196.48
2000.98    0.505   196.04
2001.08    0.504   195.59
2001.18    0.503   195.13
2001.28    0.502   194.68
2001.38    0.500   194.22
2001.48    0.499   193.76
2001.58    0.498   193.30
2001.68    0.497   192.84
2001.78    0.495   192.37
2001.88    0.494   191.91
2001.98    0.493   191.44
2002.08    0.492   190.96
2002.18    0.490   190.49
2002.28    0.489   190.01
2002.38    0.488   189.53
2002.48    0.487   189.05
2002.58    0.485   188.56
2002.68    0.484   188.08
2002.78    0.483   187.58
2002.88    0.481   187.09
2002.98    0.480   186.60
2003.08    0.479   186.10
2003.18    0.477   185.60
2003.28    0.476   185.09
2003.38    0.475   184.58
2003.48    0.473   184.07
2003.58    0.472   183.56
2003.68    0.471   183.05
2003.78    0.469   182.53
2003.88    0.468   182.01
2003.98    0.466   181.48
2004.08    0.465   180.95
2004.18    0.464   180.42
2004.28    0.462   179.89
2004.38    0.461   179.35
2004.48    0.459   178.81
2004.58    0.458   178.26
2004.68    0.457   177.72
2004.78    0.455   177.16
2004.88    0.454   176.61
2004.98    0.452   176.05
2005.08    0.451   175.49
2005.18    0.449   174.92
2005.28    0.448   174.36
2005.38    0.447   173.78
2005.48    0.445   173.21
2005.58    0.444   172.63
2005.68    0.442   172.04
2005.78    0.441   171.45
2005.88    0.439   170.86
2005.98    0.438   170.27
2006.08    0.436   169.67
2006.18    0.435   169.06
2006.28    0.433   168.45
2006.38    0.432   167.84
2006.48    0.430   167.22
2006.58    0.429   166.60
2006.68    0.427   165.98
2006.78    0.426   165.35
2006.88    0.424   164.71
2006.98    0.423   164.07
2007.08    0.421   163.43
2007.18    0.420   162.78
2007.28    0.418   162.13
2007.38    0.417   161.47
2007.48    0.415   160.81
2007.58    0.414   160.14
2007.68    0.412   159.47
2007.78    0.410   158.79
2007.88    0.409   158.11
2007.98    0.407   157.42
2008.08    0.406   156.73
2008.18    0.404   156.03
2008.28    0.403   155.33
2008.38    0.401   154.62
2008.48    0.400   153.91
2008.58    0.398   153.19
2008.68    0.397   152.46
2008.78    0.395   151.73
2008.88    0.394   150.99
2008.98    0.392   150.25
2009.08    0.391   149.50
2009.18    0.389   148.75
2009.28    0.388   147.99
2009.38    0.386   147.23
2009.48    0.385   146.45
2009.58    0.383   145.68
2009.68    0.382   144.89
2009.78    0.380   144.10
2009.88    0.379   143.31
2009.98    0.377   142.51
2010.08    0.376   141.70
2010.18    0.374   140.88
2010.28    0.373   140.06
2010.38    0.371   139.23
2010.48    0.370   138.40
2010.58    0.368   137.56
2010.68    0.367   136.71
2010.78    0.366   135.86
2010.88    0.364   135.00
2010.98    0.363   134.13
2011.08    0.361   133.26
2011.18    0.360   132.37
2011.28    0.359   131.49
2011.38    0.357   130.59
2011.48    0.356   129.69
2011.58    0.354   128.78
2011.68    0.353   127.87
2011.78    0.352   126.94
2011.88    0.350   126.01
2011.98    0.349   125.08
2012.08    0.348   124.13
2012.18    0.347   123.18
2012.28    0.345   122.23
2012.38    0.344   121.26
2012.48    0.343   120.29
2012.58    0.342   119.31
2012.68    0.340   118.33
2012.78    0.339   117.33
2012.88    0.338   116.33
2012.98    0.337   115.33
2013.08    0.336   114.31
2013.18    0.335   113.29
2013.28    0.333   112.27
2013.38    0.332   111.23
2013.48    0.331   110.19
2013.58    0.330   109.15
2013.68    0.329   108.09
2013.78    0.328   107.03
2013.88    0.327   105.97
2013.98    0.326   104.89
2014.08    0.325   103.82
2014.18    0.324   102.73
2014.28    0.324   101.64
2014.38    0.323   100.54
2014.48    0.322    99.44
2014.58    0.321    98.33
2014.68    0.320    97.22
2014.78    0.320    96.10
2014.88    0.319    94.97
2014.98    0.318    93.84
2015.08    0.317    92.71
2015.18    0.317    91.57
2015.28    0.316    90.43
2015.38    0.316    89.28
2015.48    0.315    88.13
2015.58    0.314    86.97
2015.68    0.314    85.81
2015.78    0.313    84.64
2015.88    0.313    83.48
2015.98    0.313    82.30
2016.08    0.312    81.13
2016.18    0.312    79.95
2016.28    0.311    78.77
2016.38    0.311    77.59
2016.48    0.311    76.41
2016.58    0.311    75.22
2016.68    0.310    74.03
2016.78    0.310    72.84
2016.88    0.310    71.65
2016.98    0.310    70.46
2017.08    0.310    69.27
2017.18    0.310    68.07
2017.28    0.310    66.88
2017.38    0.310    65.69
2017.48    0.310    64.49
2017.58    0.310    63.30
2017.68    0.310    62.11
2017.78    0.310    60.92
2017.88    0.310    59.73
2017.98    0.311    58.54
2018.08    0.311    57.35
2018.18    0.311    56.16
2018.28    0.311    54.98
2018.38    0.312    53.80
2018.48    0.312    52.62
2018.58    0.312    51.45
2018.68    0.313    50.28
2018.78    0.313    49.11
2018.88    0.314    47.94
2018.98    0.314    46.78
2019.08    0.315    45.62
2019.18    0.315    44.47
2019.28    0.316    43.32
2019.38    0.317    42.17
2019.48    0.317    41.03
2019.58    0.318    39.90
2019.68    0.319    38.76
2019.78    0.319    37.64
2019.88    0.320    36.52
2019.98    0.321    35.40
2020.08    0.322    34.29
2020.18    0.322    33.19
2020.28    0.323    32.09
2020.38    0.324    31.00
2020.48    0.325    29.91
2020.58    0.326    28.83
2020.68    0.327    27.75
2020.78    0.328    26.69
2020.88    0.329    25.62
2020.98    0.330    24.57
2021.08    0.331    23.52
2021.18    0.332    22.48
2021.28    0.333    21.44
2021.38    0.334    20.41
2021.48    0.335    19.39
2021.58    0.336    18.38
2021.68    0.338    17.37
2021.78    0.339    16.37
2021.88    0.340    15.37
2021.98    0.341    14.38
2022.08    0.342    13.40
2022.18    0.344    12.43
2022.28    0.345    11.46
2022.38    0.346    10.50
2022.48    0.347     9.55
2022.58    0.349     8.61
2022.68    0.350     7.67
2022.78    0.351     6.74
2022.88    0.353     5.81
2022.98    0.354     4.89
2023.08    0.355     3.98
2023.18    0.357     3.08
2023.28    0.358     2.18
2023.38    0.359     1.29
2023.48    0.361     0.41
2023.58    0.362   359.53
2023.68    0.364   358.66
2023.78    0.365   357.80
2023.88    0.367   356.94
2023.98    0.368   356.09
2024.08    0.369   355.25
2024.18    0.371   354.42
2024.28    0.372   353.59
2024.38    0.374   352.76
2024.48    0.375   351.95
2024.58    0.377   351.14
2024.68    0.378   350.33
2024.78    0.380   349.53
2024.88    0.381   348.74
2024.98    0.383   347.96
2025.08    0.384   347.18
2025.18    0.386   346.40
2025.28    0.387   345.64
2025.38    0.389   344.88
2025.48    0.390   344.12
2025.58    0.392   343.37
2025.68    0.393   342.63
2025.78    0.395   341.89
2025.88    0.396   341.16
2025.98    0.398   340.43
2026.08    0.399   339.71
2026.18    0.401   338.99
2026.28    0.402   338.28
2026.38    0.404   337.58
2026.48    0.405   336.88
2026.58    0.407   336.19
2026.68    0.409   335.50
2026.78    0.410   334.81
2026.88    0.412   334.13
2026.98    0.413   333.46
2027.08    0.415   332.79
2027.18    0.416   332.13
2027.28    0.418   331.47
2027.38    0.419   330.81
2027.48    0.421   330.16
2027.58    0.422   329.52
2027.68    0.424   328.88
2027.78    0.425   328.24
2027.88    0.427   327.61
2027.98    0.428   326.98
2028.08    0.430   326.36
2028.18    0.431   325.74
2028.28    0.433   325.13
2028.38    0.434   324.52
2028.48    0.436   323.92
2028.58    0.437   323.31
2028.68    0.439   322.72
2028.78    0.440   322.12
2028.88    0.442   321.53
2028.98    0.443   320.95
2029.08    0.445   320.37
2029.18    0.446   319.79
2029.28    0.448   319.22
2029.38    0.449   318.65
2029.48    0.450   318.08
2029.58    0.452   317.52
2029.68    0.453   316.96
2029.78    0.455   316.40
2029.88    0.456   315.85
2029.98    0.458   315.30
2030.08    0.459   314.76
2030.18    0.460   314.21
2030.28    0.462   313.67
2030.38    0.463   313.14
2030.48    0.465   312.61
2030.58    0.466   312.08
2030.68    0.467   311.55
2030.78    0.469   311.03
2030.88    0.470   310.51
2030.98    0.472   309.99
2031.08    0.473   309.48
2031.18    0.474   308.97
2031.28    0.476   308.46
2031.38    0.477   307.96
2031.48    0.478   307.45
2031.58    0.480   306.95
2031.68    0.481   306.46
2031.78    0.482   305.96
2031.88    0.484   305.47
2031.98    0.485   304.98
2032.08    0.486   304.50
2032.18    0.487   304.01
2032.28    0.489   303.53
2032.38    0.490   303.05
2032.48    0.491   302.58
2032.58    0.493   302.11
2032.68    0.494   301.63
2032.78    0.495   301.17
2032.88    0.496   300.70
2032.98    0.498   300.24
2033.08    0.499   299.77
2033.18    0.500   299.31
2033.28    0.501   298.86
2033.38    0.502   298.40
2033.48    0.504   297.95
2033.58    0.505   297.50
2033.68    0.506   297.05
2033.78    0.507   296.60
2033.88    0.508   296.16
2033.98    0.509   295.72
2034.08    0.511   295.28
2034.18    0.512   294.84
2034.28    0.513   294.40
2034.38    0.514   293.97
2034.48    0.515   293.53
2034.58    0.516   293.10
2034.68    0.517   292.67
2034.78    0.518   292.25
2034.88    0.519   291.82
2034.98    0.521   291.40
2035.08    0.522   290.98
2035.18    0.523   290.55
2035.28    0.524   290.14
2035.38    0.525   289.72
2035.48    0.526   289.30
2035.58    0.527   288.89
2035.68    0.528   288.48
2035.78    0.529   288.07
2035.88    0.530   287.66
2035.98    0.531   287.25
2036.08    0.532   286.85
2036.18    0.533   286.44
2036.28    0.534   286.04
2036.38    0.535   285.64
2036.48    0.536   285.24
2036.58    0.537   284.84
2036.68    0.538   284.44
2036.78    0.539   284.05
2036.88    0.540   283.65
2036.98    0.540   283.26
2037.08    0.541   282.87
2037.18    0.542   282.48
2037.28    0.543   282.09
2037.38    0.544   281.70
2037.48    0.545   281.32
2037.58    0.546   280.93
2037.68    0.547   280.55
2037.78    0.547   280.16
2037.88    0.548   279.78
2037.98    0.549   279.40
2038.08    0.550   279.02
2038.18    0.551   278.64
2038.28    0.552   278.27
2038.38    0.552   277.89
2038.48    0.553   277.52
2038.58    0.554   277.14
2038.68    0.555   276.77
2038.78    0.555   276.40
2038.88    0.556   276.03
2038.98    0.557   275.66
2039.08    0.558   275.29
2039.18    0.558   274.92
2039.28    0.559   274.55
2039.38    0.560   274.19
2039.48    0.561   273.82
2039.58    0.561   273.46
2039.68    0.562   273.09
2039.78    0.563   272.73
2039.88    0.563   272.37
2039.98    0.564   272.01
2040.08    0.565   271.65
2040.18    0.565   271.29
2040.28    0.566   270.93
2040.38    0.566   270.57
2040.48    0.567   270.22
2040.58    0.568   269.86
2040.68    0.568   269.51
2040.78    0.569   269.15
2040.88    0.569   268.80
2040.98    0.570   268.44
2041.08    0.571   268.09
2041.18    0.571   267.74
2041.28    0.572   267.39
2041.38    0.572   267.04
2041.48    0.573   266.69
2041.58    0.573   266.34
2041.68    0.574   265.99
2041.78    0.574   265.64
2041.88    0.575   265.30
2041.98    0.575   264.95
2042.08    0.576   264.61
2042.18    0.576   264.26
2042.28    0.577   263.91
2042.38    0.577   263.57
2042.48    0.577   263.23
2042.58    0.578   262.88
2042.68    0.578   262.54
2042.78    0.579   262.20
2042.88    0.579   261.86
2042.98    0.580   261.52
2043.08    0.580   261.17
2043.18    0.580   260.83
2043.28    0.581   260.49
2043.38    0.581   260.15
2043.48    0.581   259.82
2043.58    0.582   259.48
2043.68    0.582   259.14
2043.78    0.582   258.80
2043.88    0.583   258.46
2043.98    0.583   258.13
2044.08    0.583   257.79
2044.18    0.584   257.45
2044.28    0.584   257.12
2044.38    0.584   256.78
2044.48    0.584   256.44
2044.58    0.585   256.11
2044.68    0.585   255.77
2044.78    0.585   255.44
2044.88    0.585   255.10
2044.98    0.586   254.77
2045.08    0.586   254.44
2045.18    0.586   254.10
2045.28    0.586   253.77
2045.38    0.586   253.44
2045.48    0.587   253.10
2045.58    0.587   252.77
2045.68    0.587   252.44
2045.78    0.587   252.10
2045.88    0.587   251.77
2045.98    0.587   251.44
2046.08    0.587   251.11
2046.18    0.588   250.78
2046.28    0.588   250.44
2046.38    0.588   250.11
2046.48    0.588   249.78
2046.58    0.588   249.45
2046.68    0.588   249.12
2046.78    0.588   248.79
2046.88    0.588   248.46
2046.98    0.588   248.12
2047.08    0.588   247.79
2047.18    0.588   247.46
2047.28    0.588   247.13
2047.38    0.588   246.80
2047.48    0.588   246.47
2047.58    0.588   246.14
2047.68    0.588   245.81
2047.78    0.588   245.47
2047.88    0.588   245.14
2047.98    0.588   244.81
2048.08    0.588   244.48
2048.18    0.588   244.15
2048.28    0.588   243.82
2048.38    0.588   243.49
2048.48    0.588   243.15
2048.58    0.588   242.82
2048.68    0.587   242.49
2048.78    0.587   242.16
2048.88    0.587   241.83
2048.98    0.587   241.49
2049.08    0.587   241.16
2049.18    0.587   240.83
2049.28    0.587   240.50
2049.38    0.586   240.16
2049.48    0.586   239.83
2049.58    0.586   239.50
2049.68    0.586   239.16
2049.78    0.586   238.83
2049.88    0.585   238.50
2049.98    0.585   238.16
2050.08    0.585   237.83
2050.18    0.585   237.49
2050.28    0.585   237.16
2050.38    0.584   236.82
2050.48    0.584   236.49
2050.58    0.584   236.15
2050.68    0.583   235.81
2050.78    0.583   235.48
2050.88    0.583   235.14
2050.98    0.583   234.80
2051.08    0.582   234.46
2051.18    0.582   234.13
2051.28    0.582   233.79
2051.38    0.581   233.45
2051.48    0.581   233.11
2051.58    0.581   232.77
2051.68    0.580   232.43
2051.78    0.580   232.09
2051.88    0.579   231.75
2051.98    0.579   231.41
2052.08    0.579   231.06
2052.18    0.578   230.72
2052.28    0.578   230.38
2052.38    0.577   230.04
2052.48    0.577   229.69
2052.58    0.576   229.35
2052.68    0.576   229.00
2052.78    0.575   228.66
2052.88    0.575   228.31
2052.98    0.575   227.96
2053.08    0.574   227.62
2053.18    0.574   227.27
2053.28    0.573   226.92
2053.38    0.572   226.57
2053.48    0.572   226.22
2053.58    0.571   225.87
2053.68    0.571   225.52
2053.78    0.570   225.17
2053.88    0.570   224.81
2053.98    0.569   224.46
2054.08    0.569   224.11
2054.18    0.568   223.75
2054.28    0.567   223.40
2054.38    0.567   223.04
2054.48    0.566   222.68
2054.58    0.566   222.33
2054.68    0.565   221.97
2054.78    0.564   221.61
2054.88    0.564   221.25
2054.98    0.563   220.89
2055.08    0.562   220.52



 

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 15:30:18


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