Double Star Calculator - Orbit

Orbital Elements for HDS2031
WDS: HDS2031 WDS ID/Discoverer
P: 31.340 Orbital period (years)
a: 0.183 Semi-major axis (arcseconds)
i: 104.2 Inclination (degrees)
Ω: 245.1 Longitude of ascending node (degrees)
T: 2009.260 Epoch of periastron passage (year)
e: 0.5 Eccentricity
ω: 133.3 Longitude of periastron (degrees)
Start-Year: 2009.33 Year
End-Year: 2040.67 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS2031
Position: 142608.03-653624.1 Epoch-2000 right ascension and declination
WDS-ID: 14261-6536 WDS designation
Discoverer Code: HDS2031 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.76 Magnitude of the primary
V2: 9.42 Magnitude of the secondary
Equinox: Equinox
Date: 2018 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: Tok2019c Reference

Double Star Orbit for HDS2031



WDS 6th Orbit including measures of HDS2031

-- 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 HDS2031
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.214   256.62
--------------------------
2009.33    0.068    78.39
2009.43    0.072    76.71
2009.53    0.076    75.20
2009.63    0.079    73.84
2009.73    0.083    72.60
2009.83    0.086    71.45
2009.93    0.089    70.38
2010.03    0.092    69.38
2010.13    0.094    68.44
2010.23    0.097    67.54
2010.33    0.099    66.69
2010.43    0.101    65.86
2010.53    0.102    65.07
2010.63    0.104    64.30
2010.73    0.105    63.55
2010.83    0.106    62.81
2010.93    0.107    62.09
2011.03    0.107    61.38
2011.13    0.108    60.67
2011.23    0.108    59.97
2011.33    0.108    59.27
2011.43    0.108    58.58
2011.53    0.108    57.88
2011.63    0.108    57.18
2011.73    0.107    56.47
2011.83    0.107    55.76
2011.93    0.106    55.03
2012.03    0.105    54.30
2012.13    0.104    53.56
2012.23    0.103    52.80
2012.33    0.102    52.03
2012.43    0.101    51.25
2012.53    0.100    50.44
2012.63    0.099    49.62
2012.73    0.098    48.77
2012.83    0.096    47.90
2012.93    0.095    47.00
2013.03    0.093    46.08
2013.13    0.092    45.12
2013.23    0.090    44.13
2013.33    0.089    43.11
2013.43    0.087    42.05
2013.53    0.085    40.95
2013.63    0.084    39.81
2013.73    0.082    38.62
2013.83    0.080    37.39
2013.93    0.079    36.10
2014.03    0.077    34.75
2014.13    0.075    33.35
2014.23    0.074    31.88
2014.33    0.072    30.35
2014.43    0.071    28.74
2014.53    0.069    27.07
2014.63    0.067    25.31
2014.73    0.066    23.48
2014.83    0.065    21.56
2014.93    0.063    19.55
2015.03    0.062    17.45
2015.13    0.060    15.27
2015.23    0.059    12.99
2015.33    0.058    10.62
2015.43    0.057     8.15
2015.53    0.056     5.60
2015.63    0.055     2.97
2015.73    0.055     0.26
2015.83    0.054   357.47
2015.93    0.053   354.63
2016.03    0.053   351.73
2016.13    0.053   348.80
2016.23    0.052   345.84
2016.33    0.052   342.87
2016.43    0.053   339.90
2016.53    0.053   336.94
2016.63    0.053   334.02
2016.73    0.054   331.14
2016.83    0.054   328.32
2016.93    0.055   325.57
2017.03    0.056   322.89
2017.13    0.057   320.29
2017.23    0.058   317.77
2017.33    0.059   315.35
2017.43    0.060   313.02
2017.53    0.061   310.79
2017.63    0.062   308.65
2017.73    0.064   306.61
2017.83    0.065   304.65
2017.93    0.067   302.79
2018.03    0.069   301.01
2018.13    0.070   299.31
2018.23    0.072   297.69
2018.33    0.074   296.15
2018.43    0.075   294.68
2018.53    0.077   293.28
2018.63    0.079   291.94
2018.73    0.081   290.67
2018.83    0.083   289.45
2018.93    0.085   288.29
2019.03    0.087   287.18
2019.13    0.089   286.11
2019.23    0.091   285.10
2019.33    0.093   284.12
2019.43    0.095   283.19
2019.53    0.097   282.30
2019.63    0.099   281.44
2019.73    0.101   280.62
2019.83    0.103   279.83
2019.93    0.105   279.07
2020.03    0.107   278.34
2020.13    0.109   277.63
2020.23    0.111   276.95
2020.33    0.113   276.30
2020.43    0.115   275.67
2020.53    0.117   275.06
2020.63    0.119   274.47
2020.73    0.121   273.90
2020.83    0.123   273.35
2020.93    0.125   272.82
2021.03    0.127   272.30
2021.13    0.129   271.80
2021.23    0.131   271.32
2021.33    0.133   270.85
2021.43    0.135   270.39
2021.53    0.137   269.95
2021.63    0.139   269.52
2021.73    0.141   269.10
2021.83    0.142   268.69
2021.93    0.144   268.29
2022.03    0.146   267.91
2022.13    0.148   267.53
2022.23    0.150   267.16
2022.33    0.152   266.80
2022.43    0.154   266.45
2022.53    0.156   266.11
2022.63    0.157   265.78
2022.73    0.159   265.45
2022.83    0.161   265.13
2022.93    0.163   264.82
2023.03    0.164   264.51
2023.13    0.166   264.22
2023.23    0.168   263.92
2023.33    0.170   263.64
2023.43    0.171   263.35
2023.53    0.173   263.08
2023.63    0.175   262.81
2023.73    0.176   262.54
2023.83    0.178   262.28
2023.93    0.180   262.03
2024.03    0.181   261.78
2024.13    0.183   261.53
2024.23    0.184   261.29
2024.33    0.186   261.05
2024.43    0.187   260.81
2024.53    0.189   260.58
2024.63    0.190   260.35
2024.73    0.192   260.13
2024.83    0.193   259.91
2024.93    0.195   259.69
2025.03    0.196   259.48
2025.13    0.197   259.27
2025.23    0.199   259.06
2025.33    0.200   258.85
2025.43    0.201   258.65
2025.53    0.203   258.45
2025.63    0.204   258.25
2025.73    0.205   258.05
2025.83    0.206   257.86
2025.93    0.207   257.67
2026.03    0.209   257.48
2026.13    0.210   257.29
2026.23    0.211   257.11
2026.33    0.212   256.93
2026.43    0.213   256.75
2026.53    0.214   256.57
2026.63    0.215   256.39
2026.73    0.216   256.21
2026.83    0.217   256.04
2026.93    0.218   255.87
2027.03    0.219   255.70
2027.13    0.220   255.53
2027.23    0.221   255.36
2027.33    0.222   255.19
2027.43    0.223   255.03
2027.53    0.223   254.86
2027.63    0.224   254.70
2027.73    0.225   254.54
2027.83    0.226   254.38
2027.93    0.226   254.22
2028.03    0.227   254.06
2028.13    0.228   253.90
2028.23    0.228   253.74
2028.33    0.229   253.59
2028.43    0.229   253.43
2028.53    0.230   253.28
2028.63    0.231   253.12
2028.73    0.231   252.97
2028.83    0.231   252.82
2028.93    0.232   252.66
2029.03    0.232   252.51
2029.13    0.233   252.36
2029.23    0.233   252.21
2029.33    0.233   252.06
2029.43    0.233   251.91
2029.53    0.234   251.76
2029.63    0.234   251.61
2029.73    0.234   251.46
2029.83    0.234   251.31
2029.93    0.234   251.16
2030.03    0.234   251.01
2030.13    0.234   250.86
2030.23    0.234   250.72
2030.33    0.234   250.57
2030.43    0.234   250.42
2030.53    0.234   250.27
2030.63    0.234   250.12
2030.73    0.234   249.97
2030.83    0.234   249.82
2030.93    0.233   249.67
2031.03    0.233   249.52
2031.13    0.233   249.37
2031.23    0.232   249.22
2031.33    0.232   249.07
2031.43    0.231   248.91
2031.53    0.231   248.76
2031.63    0.230   248.61
2031.73    0.230   248.45
2031.83    0.229   248.30
2031.93    0.229   248.14
2032.03    0.228   247.98
2032.13    0.227   247.83
2032.23    0.226   247.67
2032.33    0.225   247.51
2032.43    0.225   247.35
2032.53    0.224   247.18
2032.63    0.223   247.02
2032.73    0.222   246.85
2032.83    0.221   246.69
2032.93    0.220   246.52
2033.03    0.218   246.35
2033.13    0.217   246.17
2033.23    0.216   246.00
2033.33    0.215   245.82
2033.43    0.213   245.65
2033.53    0.212   245.46
2033.63    0.210   245.28
2033.73    0.209   245.09
2033.83    0.207   244.91
2033.93    0.206   244.71
2034.03    0.204   244.52
2034.13    0.202   244.32
2034.23    0.200   244.12
2034.33    0.199   243.91
2034.43    0.197   243.70
2034.53    0.195   243.49
2034.63    0.193   243.27
2034.73    0.191   243.05
2034.83    0.188   242.82
2034.93    0.186   242.59
2035.03    0.184   242.35
2035.13    0.182   242.11
2035.23    0.179   241.86
2035.33    0.177   241.60
2035.43    0.174   241.33
2035.53    0.171   241.06
2035.63    0.169   240.77
2035.73    0.166   240.48
2035.83    0.163   240.18
2035.93    0.160   239.87
2036.03    0.157   239.54
2036.13    0.154   239.21
2036.23    0.151   238.86
2036.33    0.148   238.49
2036.43    0.144   238.11
2036.53    0.141   237.71
2036.63    0.138   237.29
2036.73    0.134   236.84
2036.83    0.130   236.38
2036.93    0.127   235.88
2037.03    0.123   235.36
2037.13    0.119   234.80
2037.23    0.115   234.20
2037.33    0.111   233.56
2037.43    0.107   232.88
2037.53    0.103   232.13
2037.63    0.099   231.33
2037.73    0.094   230.45
2037.83    0.090   229.48
2037.93    0.085   228.41
2038.03    0.081   227.22
2038.13    0.076   225.89
2038.23    0.071   224.39
2038.33    0.067   222.67
2038.43    0.062   220.69
2038.53    0.057   218.39
2038.63    0.052   215.66
2038.73    0.048   212.41
2038.83    0.043   208.45
2038.93    0.039   203.59
2039.03    0.035   197.54
2039.13    0.031   189.96
2039.23    0.028   180.54
2039.33    0.026   169.17
2039.43    0.025   156.26
2039.53    0.025   142.87
2039.63    0.026   130.30
2039.73    0.029   119.46
2039.83    0.032   110.56
2039.93    0.036   103.41
2040.03    0.040    97.68
2040.13    0.044    93.05
2040.23    0.049    89.25
2040.33    0.053    86.09
2040.43    0.058    83.41
2040.53    0.062    81.12
2040.63    0.066    79.12



 

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 17:05:29


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