Double Star Calculator - Orbit

Orbital Elements for HDS1242
WDS: HDS1242 WDS ID/Discoverer
P: 35.443 Orbital period (years)
a: 0.223 Semi-major axis (arcseconds)
i: 16.3 Inclination (degrees)
Ω: 247.8 Longitude of ascending node (degrees)
T: 2015.291 Epoch of periastron passage (year)
e: 0.386 Eccentricity
ω: 221.5 Longitude of periastron (degrees)
Start-Year: 2007.2785 Year
End-Year: 2042.7215 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS1242
Position: 083759.08-084406.4 Epoch-2000 right ascension and declination
WDS-ID: 08380-0844 WDS designation
Discoverer Code: HDS1242 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 73399 HD catalog number
Hipparcos number: 42345 Hipparcos catalog number
V1: 8.45 Magnitude of the primary
V2: 9.64 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2018e Reference

Double Star Orbit for HDS1242



WDS 6th Orbit including measures of HDS1242

-- 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 HDS1242
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.279   254.99
--------------------------
2007.28    0.233   345.45
2007.38    0.231   346.28
2007.48    0.230   347.12
2007.58    0.229   347.97
2007.68    0.228   348.83
2007.78    0.226   349.70
2007.88    0.225   350.58
2007.98    0.224   351.47
2008.08    0.222   352.37
2008.18    0.221   353.28
2008.28    0.219   354.20
2008.38    0.218   355.14
2008.48    0.217   356.08
2008.58    0.215   357.04
2008.68    0.214   358.01
2008.78    0.213   358.99
2008.88    0.211   359.99
2008.98    0.210     1.00
2009.08    0.208     2.02
2009.18    0.207     3.06
2009.28    0.206     4.11
2009.38    0.204     5.17
2009.48    0.203     6.26
2009.58    0.201     7.35
2009.68    0.200     8.46
2009.78    0.198     9.59
2009.88    0.197    10.73
2009.98    0.196    11.89
2010.08    0.194    13.07
2010.18    0.193    14.27
2010.28    0.191    15.48
2010.38    0.190    16.71
2010.48    0.188    17.96
2010.58    0.187    19.23
2010.68    0.185    20.52
2010.78    0.184    21.83
2010.88    0.183    23.16
2010.98    0.181    24.52
2011.08    0.180    25.89
2011.18    0.178    27.29
2011.28    0.177    28.71
2011.38    0.175    30.15
2011.48    0.174    31.61
2011.58    0.173    33.10
2011.68    0.171    34.62
2011.78    0.170    36.16
2011.88    0.168    37.72
2011.98    0.167    39.31
2012.08    0.166    40.93
2012.18    0.164    42.58
2012.28    0.163    44.25
2012.38    0.162    45.95
2012.48    0.160    47.68
2012.58    0.159    49.43
2012.68    0.158    51.22
2012.78    0.156    53.04
2012.88    0.155    54.88
2012.98    0.154    56.76
2013.08    0.153    58.67
2013.18    0.151    60.61
2013.28    0.150    62.58
2013.38    0.149    64.57
2013.48    0.148    66.60
2013.58    0.147    68.67
2013.68    0.146    70.76
2013.78    0.145    72.88
2013.88    0.144    75.03
2013.98    0.143    77.21
2014.08    0.142    79.42
2014.18    0.141    81.66
2014.28    0.140    83.93
2014.38    0.139    86.22
2014.48    0.139    88.54
2014.58    0.138    90.89
2014.68    0.137    93.25
2014.78    0.137    95.64
2014.88    0.136    98.04
2014.98    0.136   100.47
2015.08    0.135   102.91
2015.18    0.135   105.36
2015.28    0.135   107.83
2015.38    0.134   110.30
2015.48    0.134   112.78
2015.58    0.134   115.27
2015.68    0.134   117.75
2015.78    0.134   120.24
2015.88    0.134   122.72
2015.98    0.135   125.19
2016.08    0.135   127.66
2016.18    0.135   130.11
2016.28    0.136   132.55
2016.38    0.136   134.97
2016.48    0.137   137.37
2016.58    0.137   139.75
2016.68    0.138   142.10
2016.78    0.139   144.43
2016.88    0.140   146.73
2016.98    0.141   149.01
2017.08    0.142   151.25
2017.18    0.143   153.46
2017.28    0.144   155.64
2017.38    0.145   157.78
2017.48    0.146   159.89
2017.58    0.148   161.96
2017.68    0.149   164.00
2017.78    0.150   166.00
2017.88    0.152   167.97
2017.98    0.153   169.89
2018.08    0.155   171.78
2018.18    0.156   173.64
2018.28    0.158   175.46
2018.38    0.159   177.24
2018.48    0.161   178.99
2018.58    0.162   180.70
2018.68    0.164   182.38
2018.78    0.166   184.03
2018.88    0.167   185.64
2018.98    0.169   187.22
2019.08    0.171   188.77
2019.18    0.173   190.28
2019.28    0.174   191.77
2019.38    0.176   193.23
2019.48    0.178   194.65
2019.58    0.180   196.05
2019.68    0.181   197.42
2019.78    0.183   198.77
2019.88    0.185   200.09
2019.98    0.187   201.38
2020.08    0.189   202.65
2020.18    0.190   203.90
2020.28    0.192   205.12
2020.38    0.194   206.32
2020.48    0.196   207.50
2020.58    0.197   208.66
2020.68    0.199   209.79
2020.78    0.201   210.91
2020.88    0.203   212.01
2020.98    0.205   213.08
2021.08    0.206   214.14
2021.18    0.208   215.19
2021.28    0.210   216.21
2021.38    0.211   217.22
2021.48    0.213   218.21
2021.58    0.215   219.19
2021.68    0.216   220.15
2021.78    0.218   221.10
2021.88    0.220   222.03
2021.98    0.221   222.95
2022.08    0.223   223.86
2022.18    0.225   224.75
2022.28    0.226   225.63
2022.38    0.228   226.50
2022.48    0.229   227.36
2022.58    0.231   228.20
2022.68    0.232   229.03
2022.78    0.234   229.86
2022.88    0.235   230.67
2022.98    0.237   231.47
2023.08    0.238   232.26
2023.18    0.240   233.04
2023.28    0.241   233.81
2023.38    0.243   234.58
2023.48    0.244   235.33
2023.58    0.246   236.08
2023.68    0.247   236.82
2023.78    0.248   237.55
2023.88    0.250   238.27
2023.98    0.251   238.98
2024.08    0.252   239.69
2024.18    0.254   240.39
2024.28    0.255   241.08
2024.38    0.256   241.76
2024.48    0.257   242.44
2024.58    0.259   243.11
2024.68    0.260   243.78
2024.78    0.261   244.44
2024.88    0.262   245.09
2024.98    0.263   245.74
2025.08    0.264   246.38
2025.18    0.266   247.02
2025.28    0.267   247.65
2025.38    0.268   248.28
2025.48    0.269   248.90
2025.58    0.270   249.52
2025.68    0.271   250.13
2025.78    0.272   250.73
2025.88    0.273   251.34
2025.98    0.274   251.93
2026.08    0.275   252.53
2026.18    0.276   253.12
2026.28    0.277   253.70
2026.38    0.278   254.28
2026.48    0.279   254.86
2026.58    0.280   255.44
2026.68    0.280   256.01
2026.78    0.281   256.57
2026.88    0.282   257.14
2026.98    0.283   257.70
2027.08    0.284   258.25
2027.18    0.285   258.81
2027.28    0.285   259.36
2027.38    0.286   259.91
2027.48    0.287   260.45
2027.58    0.288   260.99
2027.68    0.288   261.53
2027.78    0.289   262.07
2027.88    0.290   262.60
2027.98    0.290   263.14
2028.08    0.291   263.67
2028.18    0.292   264.19
2028.28    0.292   264.72
2028.38    0.293   265.24
2028.48    0.293   265.76
2028.58    0.294   266.28
2028.68    0.294   266.80
2028.78    0.295   267.31
2028.88    0.296   267.82
2028.98    0.296   268.34
2029.08    0.297   268.85
2029.18    0.297   269.35
2029.28    0.297   269.86
2029.38    0.298   270.36
2029.48    0.298   270.87
2029.58    0.299   271.37
2029.68    0.299   271.87
2029.78    0.299   272.37
2029.88    0.300   272.87
2029.98    0.300   273.36
2030.08    0.301   273.86
2030.18    0.301   274.35
2030.28    0.301   274.85
2030.38    0.301   275.34
2030.48    0.302   275.83
2030.58    0.302   276.32
2030.68    0.302   276.81
2030.78    0.302   277.30
2030.88    0.303   277.79
2030.98    0.303   278.28
2031.08    0.303   278.77
2031.18    0.303   279.25
2031.28    0.303   279.74
2031.38    0.303   280.22
2031.48    0.304   280.71
2031.58    0.304   281.19
2031.68    0.304   281.68
2031.78    0.304   282.16
2031.88    0.304   282.65
2031.98    0.304   283.13
2032.08    0.304   283.62
2032.18    0.304   284.10
2032.28    0.304   284.58
2032.38    0.304   285.07
2032.48    0.304   285.55
2032.58    0.304   286.03
2032.68    0.304   286.52
2032.78    0.304   287.00
2032.88    0.304   287.49
2032.98    0.304   287.97
2033.08    0.304   288.46
2033.18    0.303   288.94
2033.28    0.303   289.43
2033.38    0.303   289.91
2033.48    0.303   290.40
2033.58    0.303   290.89
2033.68    0.303   291.38
2033.78    0.302   291.86
2033.88    0.302   292.35
2033.98    0.302   292.84
2034.08    0.302   293.33
2034.18    0.302   293.83
2034.28    0.301   294.32
2034.38    0.301   294.81
2034.48    0.301   295.31
2034.58    0.300   295.80
2034.68    0.300   296.30
2034.78    0.300   296.79
2034.88    0.299   297.29
2034.98    0.299   297.79
2035.08    0.299   298.29
2035.18    0.298   298.80
2035.28    0.298   299.30
2035.38    0.297   299.81
2035.48    0.297   300.31
2035.58    0.296   300.82
2035.68    0.296   301.33
2035.78    0.296   301.84
2035.88    0.295   302.35
2035.98    0.295   302.87
2036.08    0.294   303.39
2036.18    0.293   303.90
2036.28    0.293   304.42
2036.38    0.292   304.95
2036.48    0.292   305.47
2036.58    0.291   306.00
2036.68    0.291   306.52
2036.78    0.290   307.05
2036.88    0.289   307.59
2036.98    0.289   308.12
2037.08    0.288   308.66
2037.18    0.288   309.20
2037.28    0.287   309.74
2037.38    0.286   310.29
2037.48    0.285   310.83
2037.58    0.285   311.38
2037.68    0.284   311.94
2037.78    0.283   312.49
2037.88    0.283   313.05
2037.98    0.282   313.61
2038.08    0.281   314.18
2038.18    0.280   314.75
2038.28    0.279   315.32
2038.38    0.279   315.89
2038.48    0.278   316.47
2038.58    0.277   317.05
2038.68    0.276   317.64
2038.78    0.275   318.22
2038.88    0.274   318.82
2038.98    0.274   319.41
2039.08    0.273   320.01
2039.18    0.272   320.61
2039.28    0.271   321.22
2039.38    0.270   321.83
2039.48    0.269   322.45
2039.58    0.268   323.07
2039.68    0.267   323.69
2039.78    0.266   324.32
2039.88    0.265   324.96
2039.98    0.264   325.60
2040.08    0.263   326.24
2040.18    0.262   326.89
2040.28    0.261   327.54
2040.38    0.260   328.20
2040.48    0.259   328.86
2040.58    0.258   329.53
2040.68    0.257   330.21
2040.78    0.256   330.89
2040.88    0.255   331.58
2040.98    0.254   332.27
2041.08    0.252   332.97
2041.18    0.251   333.67
2041.28    0.250   334.38
2041.38    0.249   335.10
2041.48    0.248   335.82
2041.58    0.247   336.56
2041.68    0.246   337.29
2041.78    0.244   338.04
2041.88    0.243   338.79
2041.98    0.242   339.55
2042.08    0.241   340.32
2042.18    0.240   341.10
2042.28    0.238   341.88
2042.38    0.237   342.67
2042.48    0.236   343.47
2042.58    0.235   344.28
2042.68    0.233   345.10



 

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 16:09:10


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