Double Star Calculator - Orbit

Orbital Elements for HDS1245
WDS: HDS1245 WDS ID/Discoverer
P: 33.840 Orbital period (years)
a: 0.2118 Semi-major axis (arcseconds)
i: 129.5 Inclination (degrees)
Ω: 299.6 Longitude of ascending node (degrees)
T: 2013.175 Epoch of periastron passage (year)
e: 0.781 Eccentricity
ω: 97.3 Longitude of periastron (degrees)
Start-Year: 2008.08 Year
End-Year: 2041.92 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS1245
Position: 083950.85-660416.7 Epoch-2000 right ascension and declination
WDS-ID: 08398-6604 WDS designation
Discoverer Code: HDS1245 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 74376 HD catalog number
Hipparcos number: 42496 Hipparcos catalog number
V1: 10.07 Magnitude of the primary
V2: 11.83 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 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: Tok2016e Reference

Double Star Orbit for HDS1245



WDS 6th Orbit including measures of HDS1245

-- 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 HDS1245
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.232    30.21
--------------------------
2008.08    0.192   335.85
2008.18    0.190   335.33
2008.28    0.189   334.80
2008.38    0.187   334.27
2008.48    0.186   333.72
2008.58    0.184   333.17
2008.68    0.183   332.61
2008.78    0.181   332.03
2008.88    0.179   331.45
2008.98    0.178   330.86
2009.08    0.176   330.25
2009.18    0.174   329.63
2009.28    0.172   329.00
2009.38    0.170   328.35
2009.48    0.168   327.69
2009.58    0.166   327.02
2009.68    0.164   326.32
2009.78    0.162   325.61
2009.88    0.160   324.88
2009.98    0.158   324.13
2010.08    0.155   323.36
2010.18    0.153   322.56
2010.28    0.151   321.74
2010.38    0.148   320.89
2010.48    0.145   320.00
2010.58    0.143   319.09
2010.68    0.140   318.14
2010.78    0.137   317.15
2010.88    0.134   316.12
2010.98    0.131   315.04
2011.08    0.128   313.91
2011.18    0.124   312.71
2011.28    0.121   311.45
2011.38    0.117   310.12
2011.48    0.114   308.69
2011.58    0.110   307.17
2011.68    0.105   305.53
2011.78    0.101   303.75
2011.88    0.097   301.81
2011.98    0.092   299.68
2012.08    0.087   297.30
2012.18    0.082   294.63
2012.28    0.076   291.58
2012.38    0.070   288.04
2012.48    0.064   283.83
2012.58    0.058   278.71
2012.68    0.051   272.30
2012.78    0.045   263.98
2012.88    0.038   252.87
2012.98    0.033   237.88
2013.08    0.030   218.61
2013.18    0.030   197.15
2013.28    0.033   177.55
2013.38    0.038   162.12
2013.48    0.044   150.59
2013.58    0.050   141.90
2013.68    0.056   135.13
2013.78    0.062   129.68
2013.88    0.068   125.15
2013.98    0.073   121.29
2014.08    0.078   117.94
2014.18    0.082   114.97
2014.28    0.086   112.30
2014.38    0.090   109.88
2014.48    0.094   107.66
2014.58    0.098   105.60
2014.68    0.101   103.69
2014.78    0.105   101.90
2014.88    0.108   100.22
2014.98    0.111    98.63
2015.08    0.113    97.12
2015.18    0.116    95.68
2015.28    0.119    94.30
2015.38    0.121    92.99
2015.48    0.124    91.72
2015.58    0.126    90.51
2015.68    0.128    89.33
2015.78    0.130    88.20
2015.88    0.133    87.11
2015.98    0.135    86.04
2016.08    0.137    85.01
2016.18    0.139    84.01
2016.28    0.140    83.04
2016.38    0.142    82.09
2016.48    0.144    81.17
2016.58    0.146    80.27
2016.68    0.148    79.39
2016.78    0.149    78.52
2016.88    0.151    77.68
2016.98    0.153    76.86
2017.08    0.154    76.05
2017.18    0.156    75.26
2017.28    0.157    74.49
2017.38    0.159    73.73
2017.48    0.160    72.98
2017.58    0.161    72.25
2017.68    0.163    71.53
2017.78    0.164    70.82
2017.88    0.166    70.12
2017.98    0.167    69.43
2018.08    0.168    68.76
2018.18    0.169    68.09
2018.28    0.171    67.44
2018.38    0.172    66.79
2018.48    0.173    66.15
2018.58    0.174    65.53
2018.68    0.176    64.91
2018.78    0.177    64.30
2018.88    0.178    63.69
2018.98    0.179    63.10
2019.08    0.180    62.51
2019.18    0.181    61.93
2019.28    0.182    61.35
2019.38    0.183    60.79
2019.48    0.184    60.22
2019.58    0.185    59.67
2019.68    0.186    59.12
2019.78    0.187    58.58
2019.88    0.188    58.04
2019.98    0.189    57.51
2020.08    0.190    56.98
2020.18    0.191    56.46
2020.28    0.192    55.95
2020.38    0.193    55.44
2020.48    0.194    54.93
2020.58    0.195    54.43
2020.68    0.196    53.93
2020.78    0.197    53.44
2020.88    0.198    52.96
2020.98    0.198    52.47
2021.08    0.199    51.99
2021.18    0.200    51.52
2021.28    0.201    51.05
2021.38    0.202    50.58
2021.48    0.203    50.12
2021.58    0.203    49.66
2021.68    0.204    49.20
2021.78    0.205    48.75
2021.88    0.206    48.30
2021.98    0.207    47.85
2022.08    0.207    47.41
2022.18    0.208    46.97
2022.28    0.209    46.53
2022.38    0.209    46.10
2022.48    0.210    45.67
2022.58    0.211    45.24
2022.68    0.212    44.82
2022.78    0.212    44.39
2022.88    0.213    43.97
2022.98    0.214    43.56
2023.08    0.214    43.14
2023.18    0.215    42.73
2023.28    0.216    42.32
2023.38    0.216    41.92
2023.48    0.217    41.51
2023.58    0.218    41.11
2023.68    0.218    40.71
2023.78    0.219    40.31
2023.88    0.219    39.92
2023.98    0.220    39.53
2024.08    0.221    39.13
2024.18    0.221    38.75
2024.28    0.222    38.36
2024.38    0.222    37.97
2024.48    0.223    37.59
2024.58    0.223    37.21
2024.68    0.224    36.83
2024.78    0.224    36.45
2024.88    0.225    36.08
2024.98    0.225    35.70
2025.08    0.226    35.33
2025.18    0.226    34.96
2025.28    0.227    34.59
2025.38    0.227    34.23
2025.48    0.228    33.86
2025.58    0.228    33.50
2025.68    0.229    33.13
2025.78    0.229    32.77
2025.88    0.230    32.41
2025.98    0.230    32.05
2026.08    0.231    31.70
2026.18    0.231    31.34
2026.28    0.232    30.99
2026.38    0.232    30.63
2026.48    0.232    30.28
2026.58    0.233    29.93
2026.68    0.233    29.58
2026.78    0.234    29.24
2026.88    0.234    28.89
2026.98    0.234    28.54
2027.08    0.235    28.20
2027.18    0.235    27.86
2027.28    0.235    27.51
2027.38    0.236    27.17
2027.48    0.236    26.83
2027.58    0.237    26.49
2027.68    0.237    26.15
2027.78    0.237    25.82
2027.88    0.237    25.48
2027.98    0.238    25.14
2028.08    0.238    24.81
2028.18    0.238    24.47
2028.28    0.239    24.14
2028.38    0.239    23.81
2028.48    0.239    23.48
2028.58    0.240    23.15
2028.68    0.240    22.82
2028.78    0.240    22.49
2028.88    0.240    22.16
2028.98    0.241    21.83
2029.08    0.241    21.50
2029.18    0.241    21.18
2029.28    0.241    20.85
2029.38    0.241    20.53
2029.48    0.242    20.20
2029.58    0.242    19.88
2029.68    0.242    19.55
2029.78    0.242    19.23
2029.88    0.242    18.91
2029.98    0.243    18.58
2030.08    0.243    18.26
2030.18    0.243    17.94
2030.28    0.243    17.62
2030.38    0.243    17.30
2030.48    0.243    16.98
2030.58    0.243    16.66
2030.68    0.244    16.34
2030.78    0.244    16.02
2030.88    0.244    15.70
2030.98    0.244    15.38
2031.08    0.244    15.06
2031.18    0.244    14.74
2031.28    0.244    14.43
2031.38    0.244    14.11
2031.48    0.244    13.79
2031.58    0.244    13.47
2031.68    0.244    13.16
2031.78    0.244    12.84
2031.88    0.244    12.52
2031.98    0.244    12.20
2032.08    0.245    11.89
2032.18    0.245    11.57
2032.28    0.245    11.25
2032.38    0.245    10.94
2032.48    0.244    10.62
2032.58    0.244    10.30
2032.68    0.244     9.98
2032.78    0.244     9.67
2032.88    0.244     9.35
2032.98    0.244     9.03
2033.08    0.244     8.71
2033.18    0.244     8.40
2033.28    0.244     8.08
2033.38    0.244     7.76
2033.48    0.244     7.44
2033.58    0.244     7.12
2033.68    0.244     6.80
2033.78    0.244     6.48
2033.88    0.243     6.16
2033.98    0.243     5.84
2034.08    0.243     5.52
2034.18    0.243     5.20
2034.28    0.243     4.88
2034.38    0.243     4.56
2034.48    0.242     4.24
2034.58    0.242     3.91
2034.68    0.242     3.59
2034.78    0.242     3.27
2034.88    0.242     2.94
2034.98    0.241     2.62
2035.08    0.241     2.29
2035.18    0.241     1.96
2035.28    0.241     1.64
2035.38    0.240     1.31
2035.48    0.240     0.98
2035.58    0.240     0.65
2035.68    0.239     0.32
2035.78    0.239   359.99
2035.88    0.239   359.66
2035.98    0.238   359.32
2036.08    0.238   358.99
2036.18    0.238   358.66
2036.28    0.237   358.32
2036.38    0.237   357.98
2036.48    0.237   357.64
2036.58    0.236   357.30
2036.68    0.236   356.96
2036.78    0.235   356.62
2036.88    0.235   356.28
2036.98    0.234   355.94
2037.08    0.234   355.59
2037.18    0.233   355.24
2037.28    0.233   354.89
2037.38    0.232   354.54
2037.48    0.232   354.19
2037.58    0.231   353.84
2037.68    0.231   353.48
2037.78    0.230   353.13
2037.88    0.230   352.77
2037.98    0.229   352.41
2038.08    0.229   352.05
2038.18    0.228   351.68
2038.28    0.227   351.32
2038.38    0.227   350.95
2038.48    0.226   350.58
2038.58    0.225   350.21
2038.68    0.225   349.83
2038.78    0.224   349.46
2038.88    0.223   349.08
2038.98    0.223   348.70
2039.08    0.222   348.31
2039.18    0.221   347.93
2039.28    0.220   347.54
2039.38    0.219   347.14
2039.48    0.219   346.75
2039.58    0.218   346.35
2039.68    0.217   345.95
2039.78    0.216   345.54
2039.88    0.215   345.14
2039.98    0.214   344.72
2040.08    0.213   344.31
2040.18    0.212   343.89
2040.28    0.211   343.47
2040.38    0.210   343.04
2040.48    0.209   342.61
2040.58    0.208   342.18
2040.68    0.207   341.74
2040.78    0.206   341.29
2040.88    0.205   340.85
2040.98    0.204   340.39
2041.08    0.203   339.93
2041.18    0.202   339.47
2041.28    0.200   339.00
2041.38    0.199   338.52
2041.48    0.198   338.04
2041.58    0.197   337.56
2041.68    0.195   337.06
2041.78    0.194   336.56
2041.88    0.192   336.05



 

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 16:09:23


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