Double Star Calculator - Orbit

Orbital Elements for HDS109
WDS: HDS109 WDS ID/Discoverer
P: 46.640 Orbital period (years)
a: 0.253 Semi-major axis (arcseconds)
i: 133.5 Inclination (degrees)
Ω: 131.1 Longitude of ascending node (degrees)
T: 2009.690 Epoch of periastron passage (year)
e: 0.752 Eccentricity
ω: 227.5 Longitude of periastron (degrees)
Start-Year: 2001.68 Year
End-Year: 2048.32 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS109
Position: 004932.74+440333.8 Epoch-2000 right ascension and declination
WDS-ID: 00495+4404 WDS designation
Discoverer Code: HDS109 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 4712 HD catalog number
Hipparcos number: 3857 Hipparcos catalog number
V1: 8.02 Magnitude of the primary
V2: 10.32 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 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: FMR2013a Reference

Double Star Orbit for HDS109



WDS 6th Orbit including measures of HDS109

-- 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 HDS109
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.378   104.28
--------------------------
2001.68    0.208    54.86
2001.78    0.207    54.33
2001.88    0.205    53.80
2001.98    0.203    53.27
2002.08    0.201    52.72
2002.18    0.200    52.16
2002.28    0.198    51.59
2002.38    0.196    51.02
2002.48    0.194    50.43
2002.58    0.193    49.83
2002.68    0.191    49.22
2002.78    0.189    48.60
2002.88    0.187    47.96
2002.98    0.186    47.32
2003.08    0.184    46.66
2003.18    0.182    45.99
2003.28    0.180    45.31
2003.38    0.178    44.61
2003.48    0.177    43.90
2003.58    0.175    43.17
2003.68    0.173    42.43
2003.78    0.171    41.67
2003.88    0.169    40.90
2003.98    0.168    40.11
2004.08    0.166    39.30
2004.18    0.164    38.48
2004.28    0.162    37.63
2004.38    0.160    36.77
2004.48    0.158    35.89
2004.58    0.157    34.99
2004.68    0.155    34.06
2004.78    0.153    33.12
2004.88    0.151    32.15
2004.98    0.149    31.16
2005.08    0.148    30.14
2005.18    0.146    29.10
2005.28    0.144    28.03
2005.38    0.142    26.94
2005.48    0.140    25.81
2005.58    0.139    24.66
2005.68    0.137    23.48
2005.78    0.135    22.27
2005.88    0.133    21.02
2005.98    0.131    19.74
2006.08    0.130    18.43
2006.18    0.128    17.08
2006.28    0.126    15.69
2006.38    0.124    14.26
2006.48    0.123    12.79
2006.58    0.121    11.28
2006.68    0.119     9.73
2006.78    0.118     8.13
2006.88    0.116     6.48
2006.98    0.114     4.78
2007.08    0.112     3.03
2007.18    0.111     1.23
2007.28    0.109   359.37
2007.38    0.107   357.45
2007.48    0.105   355.47
2007.58    0.104   353.42
2007.68    0.102   351.30
2007.78    0.100   349.11
2007.88    0.098   346.84
2007.98    0.097   344.48
2008.08    0.095   342.04
2008.18    0.093   339.50
2008.28    0.091   336.85
2008.38    0.089   334.08
2008.48    0.087   331.19
2008.58    0.085   328.15
2008.68    0.083   324.95
2008.78    0.080   321.56
2008.88    0.078   317.96
2008.98    0.075   314.11
2009.08    0.072   309.96
2009.18    0.069   305.47
2009.28    0.066   300.56
2009.38    0.063   295.15
2009.48    0.060   289.15
2009.58    0.056   282.46
2009.68    0.053   274.98
2009.78    0.051   266.67
2009.88    0.049   257.55
2009.98    0.047   247.78
2010.08    0.047   237.68
2010.18    0.048   227.64
2010.28    0.049   218.07
2010.38    0.052   209.28
2010.48    0.055   201.41
2010.58    0.059   194.49
2010.68    0.063   188.46
2010.78    0.068   183.21
2010.88    0.072   178.63
2010.98    0.077   174.63
2011.08    0.082   171.10
2011.18    0.087   167.98
2011.28    0.092   165.19
2011.38    0.097   162.69
2011.48    0.102   160.43
2011.58    0.107   158.37
2011.68    0.112   156.50
2011.78    0.116   154.78
2011.88    0.121   153.19
2011.98    0.126   151.71
2012.08    0.130   150.34
2012.18    0.135   149.06
2012.28    0.139   147.87
2012.38    0.143   146.74
2012.48    0.147   145.68
2012.58    0.152   144.67
2012.68    0.156   143.72
2012.78    0.160   142.82
2012.88    0.163   141.96
2012.98    0.167   141.14
2013.08    0.171   140.36
2013.18    0.175   139.61
2013.28    0.178   138.89
2013.38    0.182   138.20
2013.48    0.186   137.54
2013.58    0.189   136.90
2013.68    0.192   136.28
2013.78    0.196   135.69
2013.88    0.199   135.11
2013.98    0.202   134.56
2014.08    0.205   134.02
2014.18    0.209   133.49
2014.28    0.212   132.99
2014.38    0.215   132.49
2014.48    0.218   132.01
2014.58    0.221   131.55
2014.68    0.224   131.09
2014.78    0.226   130.65
2014.88    0.229   130.22
2014.98    0.232   129.79
2015.08    0.235   129.38
2015.18    0.237   128.98
2015.28    0.240   128.59
2015.38    0.243   128.20
2015.48    0.245   127.82
2015.58    0.248   127.45
2015.68    0.250   127.09
2015.78    0.252   126.74
2015.88    0.255   126.39
2015.98    0.257   126.05
2016.08    0.260   125.71
2016.18    0.262   125.38
2016.28    0.264   125.06
2016.38    0.266   124.74
2016.48    0.269   124.43
2016.58    0.271   124.12
2016.68    0.273   123.81
2016.78    0.275   123.52
2016.88    0.277   123.22
2016.98    0.279   122.93
2017.08    0.281   122.65
2017.18    0.283   122.36
2017.28    0.285   122.09
2017.38    0.287   121.81
2017.48    0.289   121.54
2017.58    0.291   121.28
2017.68    0.293   121.01
2017.78    0.294   120.75
2017.88    0.296   120.49
2017.98    0.298   120.24
2018.08    0.300   119.99
2018.18    0.302   119.74
2018.28    0.303   119.50
2018.38    0.305   119.25
2018.48    0.307   119.01
2018.58    0.308   118.78
2018.68    0.310   118.54
2018.78    0.311   118.31
2018.88    0.313   118.08
2018.98    0.314   117.85
2019.08    0.316   117.63
2019.18    0.317   117.40
2019.28    0.319   117.18
2019.38    0.320   116.96
2019.48    0.322   116.74
2019.58    0.323   116.53
2019.68    0.325   116.31
2019.78    0.326   116.10
2019.88    0.327   115.89
2019.98    0.329   115.68
2020.08    0.330   115.48
2020.18    0.331   115.27
2020.28    0.332   115.07
2020.38    0.334   114.87
2020.48    0.335   114.66
2020.58    0.336   114.47
2020.68    0.337   114.27
2020.78    0.338   114.07
2020.88    0.340   113.88
2020.98    0.341   113.68
2021.08    0.342   113.49
2021.18    0.343   113.30
2021.28    0.344   113.11
2021.38    0.345   112.92
2021.48    0.346   112.73
2021.58    0.347   112.54
2021.68    0.348   112.36
2021.78    0.349   112.17
2021.88    0.350   111.99
2021.98    0.351   111.81
2022.08    0.352   111.63
2022.18    0.353   111.45
2022.28    0.354   111.27
2022.38    0.355   111.09
2022.48    0.355   110.91
2022.58    0.356   110.73
2022.68    0.357   110.56
2022.78    0.358   110.38
2022.88    0.359   110.21
2022.98    0.360   110.03
2023.08    0.360   109.86
2023.18    0.361   109.69
2023.28    0.362   109.52
2023.38    0.363   109.35
2023.48    0.363   109.17
2023.58    0.364   109.01
2023.68    0.365   108.84
2023.78    0.365   108.67
2023.88    0.366   108.50
2023.98    0.367   108.33
2024.08    0.367   108.17
2024.18    0.368   108.00
2024.28    0.369   107.84
2024.38    0.369   107.67
2024.48    0.370   107.51
2024.58    0.370   107.34
2024.68    0.371   107.18
2024.78    0.371   107.02
2024.88    0.372   106.85
2024.98    0.372   106.69
2025.08    0.373   106.53
2025.18    0.373   106.37
2025.28    0.374   106.21
2025.38    0.374   106.05
2025.48    0.375   105.89
2025.58    0.375   105.73
2025.68    0.376   105.57
2025.78    0.376   105.41
2025.88    0.376   105.25
2025.98    0.377   105.10
2026.08    0.377   104.94
2026.18    0.377   104.78
2026.28    0.378   104.62
2026.38    0.378   104.47
2026.48    0.378   104.31
2026.58    0.379   104.15
2026.68    0.379   104.00
2026.78    0.379   103.84
2026.88    0.380   103.68
2026.98    0.380   103.53
2027.08    0.380   103.37
2027.18    0.380   103.22
2027.28    0.380   103.06
2027.38    0.381   102.91
2027.48    0.381   102.75
2027.58    0.381   102.60
2027.68    0.381   102.45
2027.78    0.381   102.29
2027.88    0.382   102.14
2027.98    0.382   101.98
2028.08    0.382   101.83
2028.18    0.382   101.68
2028.28    0.382   101.52
2028.38    0.382   101.37
2028.48    0.382   101.21
2028.58    0.382   101.06
2028.68    0.382   100.91
2028.78    0.382   100.75
2028.88    0.382   100.60
2028.98    0.382   100.45
2029.08    0.382   100.29
2029.18    0.382   100.14
2029.28    0.382    99.99
2029.38    0.382    99.83
2029.48    0.382    99.68
2029.58    0.382    99.53
2029.68    0.382    99.37
2029.78    0.382    99.22
2029.88    0.382    99.07
2029.98    0.382    98.91
2030.08    0.382    98.76
2030.18    0.382    98.61
2030.28    0.382    98.45
2030.38    0.382    98.30
2030.48    0.381    98.14
2030.58    0.381    97.99
2030.68    0.381    97.84
2030.78    0.381    97.68
2030.88    0.381    97.53
2030.98    0.381    97.37
2031.08    0.380    97.22
2031.18    0.380    97.06
2031.28    0.380    96.91
2031.38    0.380    96.75
2031.48    0.379    96.60
2031.58    0.379    96.44
2031.68    0.379    96.28
2031.78    0.379    96.13
2031.88    0.378    95.97
2031.98    0.378    95.82
2032.08    0.378    95.66
2032.18    0.378    95.50
2032.28    0.377    95.34
2032.38    0.377    95.19
2032.48    0.377    95.03
2032.58    0.376    94.87
2032.68    0.376    94.71
2032.78    0.375    94.55
2032.88    0.375    94.39
2032.98    0.375    94.23
2033.08    0.374    94.07
2033.18    0.374    93.91
2033.28    0.373    93.75
2033.38    0.373    93.59
2033.48    0.373    93.43
2033.58    0.372    93.27
2033.68    0.372    93.11
2033.78    0.371    92.94
2033.88    0.371    92.78
2033.98    0.370    92.62
2034.08    0.370    92.45
2034.18    0.369    92.29
2034.28    0.369    92.13
2034.38    0.368    91.96
2034.48    0.368    91.79
2034.58    0.367    91.63
2034.68    0.367    91.46
2034.78    0.366    91.30
2034.88    0.365    91.13
2034.98    0.365    90.96
2035.08    0.364    90.79
2035.18    0.364    90.62
2035.28    0.363    90.45
2035.38    0.362    90.28
2035.48    0.362    90.11
2035.58    0.361    89.94
2035.68    0.361    89.77
2035.78    0.360    89.59
2035.88    0.359    89.42
2035.98    0.359    89.25
2036.08    0.358    89.07
2036.18    0.357    88.90
2036.28    0.356    88.72
2036.38    0.356    88.54
2036.48    0.355    88.37
2036.58    0.354    88.19
2036.68    0.354    88.01
2036.78    0.353    87.83
2036.88    0.352    87.65
2036.98    0.351    87.47
2037.08    0.351    87.29
2037.18    0.350    87.10
2037.28    0.349    86.92
2037.38    0.348    86.73
2037.48    0.347    86.55
2037.58    0.347    86.36
2037.68    0.346    86.18
2037.78    0.345    85.99
2037.88    0.344    85.80
2037.98    0.343    85.61
2038.08    0.342    85.42
2038.18    0.341    85.23
2038.28    0.341    85.03
2038.38    0.340    84.84
2038.48    0.339    84.64
2038.58    0.338    84.45
2038.68    0.337    84.25
2038.78    0.336    84.05
2038.88    0.335    83.85
2038.98    0.334    83.65
2039.08    0.333    83.45
2039.18    0.332    83.25
2039.28    0.331    83.05
2039.38    0.330    82.84
2039.48    0.329    82.63
2039.58    0.328    82.43
2039.68    0.327    82.22
2039.78    0.326    82.01
2039.88    0.325    81.80
2039.98    0.324    81.58
2040.08    0.323    81.37
2040.18    0.322    81.16
2040.28    0.321    80.94
2040.38    0.320    80.72
2040.48    0.319    80.50
2040.58    0.318    80.28
2040.68    0.317    80.06
2040.78    0.316    79.83
2040.88    0.314    79.61
2040.98    0.313    79.38
2041.08    0.312    79.15
2041.18    0.311    78.92
2041.28    0.310    78.69
2041.38    0.309    78.45
2041.48    0.308    78.22
2041.58    0.306    77.98
2041.68    0.305    77.74
2041.78    0.304    77.50
2041.88    0.303    77.25
2041.98    0.302    77.01
2042.08    0.300    76.76
2042.18    0.299    76.51
2042.28    0.298    76.26
2042.38    0.297    76.01
2042.48    0.296    75.75
2042.58    0.294    75.49
2042.68    0.293    75.23
2042.78    0.292    74.97
2042.88    0.290    74.71
2042.98    0.289    74.44
2043.08    0.288    74.17
2043.18    0.287    73.90
2043.28    0.285    73.62
2043.38    0.284    73.35
2043.48    0.283    73.07
2043.58    0.281    72.79
2043.68    0.280    72.50
2043.78    0.278    72.21
2043.88    0.277    71.92
2043.98    0.276    71.63
2044.08    0.274    71.33
2044.18    0.273    71.03
2044.28    0.272    70.73
2044.38    0.270    70.43
2044.48    0.269    70.12
2044.58    0.267    69.81
2044.68    0.266    69.49
2044.78    0.264    69.17
2044.88    0.263    68.85
2044.98    0.262    68.52
2045.08    0.260    68.19
2045.18    0.259    67.86
2045.28    0.257    67.52
2045.38    0.256    67.18
2045.48    0.254    66.84
2045.58    0.253    66.49
2045.68    0.251    66.13
2045.78    0.250    65.78
2045.88    0.248    65.41
2045.98    0.246    65.05
2046.08    0.245    64.67
2046.18    0.243    64.30
2046.28    0.242    63.92
2046.38    0.240    63.53
2046.48    0.239    63.14
2046.58    0.237    62.74
2046.68    0.235    62.34
2046.78    0.234    61.94
2046.88    0.232    61.52
2046.98    0.231    61.10
2047.08    0.229    60.68
2047.18    0.227    60.25
2047.28    0.226    59.81
2047.38    0.224    59.37
2047.48    0.222    58.92
2047.58    0.221    58.46
2047.68    0.219    58.00
2047.78    0.217    57.53
2047.88    0.216    57.05
2047.98    0.214    56.57
2048.08    0.212    56.07
2048.18    0.211    55.57
2048.28    0.209    55.06






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 14:43:40



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