Double Star Calculator - Orbit

Orbital Elements for HDS2309
WDS: HDS2309 WDS ID/Discoverer
P: 29.906 Orbital period (years)
a: 0.1469 Semi-major axis (arcseconds)
i: 36.8 Inclination (degrees)
Ω: 77.5 Longitude of ascending node (degrees)
T: 2016.237 Epoch of periastron passage (year)
e: 0.614 Eccentricity
ω: 41.0 Longitude of periastron (degrees)
Start-Year: 2010.047 Year
End-Year: 2039.953 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS2309
Position: 162035.00+453444.6 Epoch-2000 right ascension and declination
WDS-ID: 16206+4535 WDS designation
Discoverer Code: HDS2309 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 147544 HD catalog number
Hipparcos number: 80074 Hipparcos catalog number
V1: 7.74 Magnitude of the primary
V2: 10.68 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 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: Cve2014 Reference

Double Star Orbit for HDS2309



WDS 6th Orbit including measures of HDS2309

-- 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 HDS2309
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.214   276.29
--------------------------
2010.05    0.141   335.25
2010.15    0.140   336.08
2010.25    0.138   336.93
2010.35    0.137   337.80
2010.45    0.135   338.68
2010.55    0.134   339.59
2010.65    0.133   340.51
2010.75    0.131   341.45
2010.85    0.130   342.42
2010.95    0.128   343.40
2011.05    0.127   344.41
2011.15    0.126   345.44
2011.25    0.124   346.50
2011.35    0.123   347.57
2011.45    0.121   348.68
2011.55    0.120   349.81
2011.65    0.118   350.97
2011.75    0.117   352.16
2011.85    0.115   353.38
2011.95    0.114   354.63
2012.05    0.112   355.91
2012.15    0.111   357.23
2012.25    0.109   358.58
2012.35    0.108   359.97
2012.45    0.107     1.39
2012.55    0.105     2.86
2012.65    0.104     4.37
2012.75    0.102     5.92
2012.85    0.101     7.51
2012.95    0.099     9.15
2013.05    0.098    10.84
2013.15    0.096    12.58
2013.25    0.095    14.37
2013.35    0.094    16.21
2013.45    0.092    18.11
2013.55    0.091    20.07
2013.65    0.089    22.10
2013.75    0.088    24.18
2013.85    0.087    26.33
2013.95    0.085    28.56
2014.05    0.084    30.85
2014.15    0.083    33.22
2014.25    0.081    35.67
2014.35    0.080    38.20
2014.45    0.078    40.83
2014.55    0.077    43.54
2014.65    0.076    46.35
2014.75    0.074    49.27
2014.85    0.073    52.30
2014.95    0.072    55.44
2015.05    0.070    58.71
2015.15    0.069    62.13
2015.25    0.067    65.68
2015.35    0.066    69.40
2015.45    0.064    73.30
2015.55    0.063    77.39
2015.65    0.061    81.69
2015.75    0.059    86.22
2015.85    0.058    91.01
2015.95    0.056    96.06
2016.05    0.055   101.39
2016.15    0.053   107.02
2016.25    0.052   112.95
2016.35    0.051   119.15
2016.45    0.050   125.60
2016.55    0.049   132.23
2016.65    0.049   138.99
2016.75    0.049   145.76
2016.85    0.050   152.47
2016.95    0.051   159.00
2017.05    0.052   165.29
2017.15    0.053   171.25
2017.25    0.055   176.87
2017.35    0.057   182.10
2017.45    0.059   186.96
2017.55    0.062   191.45
2017.65    0.064   195.59
2017.75    0.067   199.41
2017.85    0.070   202.92
2017.95    0.073   206.17
2018.05    0.075   209.17
2018.15    0.078   211.95
2018.25    0.081   214.53
2018.35    0.084   216.93
2018.45    0.087   219.17
2018.55    0.090   221.26
2018.65    0.093   223.23
2018.75    0.096   225.07
2018.85    0.099   226.81
2018.95    0.101   228.46
2019.05    0.104   230.01
2019.15    0.107   231.49
2019.25    0.110   232.89
2019.35    0.112   234.23
2019.45    0.115   235.50
2019.55    0.117   236.72
2019.65    0.120   237.89
2019.75    0.122   239.01
2019.85    0.125   240.08
2019.95    0.127   241.12
2020.05    0.130   242.11
2020.15    0.132   243.07
2020.25    0.134   244.00
2020.35    0.136   244.90
2020.45    0.139   245.76
2020.55    0.141   246.61
2020.65    0.143   247.42
2020.75    0.145   248.21
2020.85    0.147   248.98
2020.95    0.149   249.73
2021.05    0.151   250.46
2021.15    0.153   251.17
2021.25    0.155   251.86
2021.35    0.157   252.54
2021.45    0.159   253.20
2021.55    0.160   253.85
2021.65    0.162   254.48
2021.75    0.164   255.10
2021.85    0.166   255.70
2021.95    0.167   256.30
2022.05    0.169   256.88
2022.15    0.170   257.45
2022.25    0.172   258.01
2022.35    0.174   258.56
2022.45    0.175   259.10
2022.55    0.176   259.63
2022.65    0.178   260.15
2022.75    0.179   260.67
2022.85    0.181   261.18
2022.95    0.182   261.67
2023.05    0.183   262.17
2023.15    0.185   262.65
2023.25    0.186   263.13
2023.35    0.187   263.60
2023.45    0.188   264.07
2023.55    0.190   264.53
2023.65    0.191   264.98
2023.75    0.192   265.43
2023.85    0.193   265.87
2023.95    0.194   266.31
2024.05    0.195   266.74
2024.15    0.196   267.17
2024.25    0.197   267.60
2024.35    0.198   268.02
2024.45    0.199   268.43
2024.55    0.200   268.85
2024.65    0.201   269.25
2024.75    0.202   269.66
2024.85    0.203   270.06
2024.95    0.204   270.46
2025.05    0.204   270.85
2025.15    0.205   271.24
2025.25    0.206   271.63
2025.35    0.207   272.02
2025.45    0.207   272.40
2025.55    0.208   272.78
2025.65    0.209   273.16
2025.75    0.210   273.53
2025.85    0.210   273.91
2025.95    0.211   274.28
2026.05    0.211   274.65
2026.15    0.212   275.01
2026.25    0.213   275.38
2026.35    0.213   275.74
2026.45    0.214   276.10
2026.55    0.214   276.46
2026.65    0.215   276.82
2026.75    0.215   277.17
2026.85    0.216   277.53
2026.95    0.216   277.88
2027.05    0.216   278.23
2027.15    0.217   278.58
2027.25    0.217   278.93
2027.35    0.217   279.28
2027.45    0.218   279.62
2027.55    0.218   279.97
2027.65    0.218   280.31
2027.75    0.219   280.66
2027.85    0.219   281.00
2027.95    0.219   281.34
2028.05    0.219   281.68
2028.15    0.220   282.02
2028.25    0.220   282.36
2028.35    0.220   282.70
2028.45    0.220   283.04
2028.55    0.220   283.38
2028.65    0.220   283.72
2028.75    0.221   284.06
2028.85    0.221   284.39
2028.95    0.221   284.73
2029.05    0.221   285.07
2029.15    0.221   285.41
2029.25    0.221   285.74
2029.35    0.221   286.08
2029.45    0.221   286.42
2029.55    0.221   286.75
2029.65    0.221   287.09
2029.75    0.221   287.43
2029.85    0.221   287.76
2029.95    0.220   288.10
2030.05    0.220   288.44
2030.15    0.220   288.78
2030.25    0.220   289.12
2030.35    0.220   289.46
2030.45    0.220   289.80
2030.55    0.220   290.14
2030.65    0.219   290.48
2030.75    0.219   290.82
2030.85    0.219   291.16
2030.95    0.219   291.50
2031.05    0.218   291.85
2031.15    0.218   292.19
2031.25    0.218   292.54
2031.35    0.218   292.88
2031.45    0.217   293.23
2031.55    0.217   293.58
2031.65    0.217   293.93
2031.75    0.216   294.28
2031.85    0.216   294.63
2031.95    0.215   294.99
2032.05    0.215   295.34
2032.15    0.215   295.70
2032.25    0.214   296.05
2032.35    0.214   296.41
2032.45    0.213   296.77
2032.55    0.213   297.13
2032.65    0.212   297.50
2032.75    0.212   297.86
2032.85    0.211   298.23
2032.95    0.211   298.60
2033.05    0.210   298.97
2033.15    0.210   299.34
2033.25    0.209   299.72
2033.35    0.208   300.10
2033.45    0.208   300.48
2033.55    0.207   300.86
2033.65    0.206   301.24
2033.75    0.206   301.63
2033.85    0.205   302.02
2033.95    0.204   302.41
2034.05    0.204   302.80
2034.15    0.203   303.20
2034.25    0.202   303.60
2034.35    0.202   304.00
2034.45    0.201   304.41
2034.55    0.200   304.81
2034.65    0.199   305.22
2034.75    0.199   305.64
2034.85    0.198   306.06
2034.95    0.197   306.48
2035.05    0.196   306.90
2035.15    0.195   307.33
2035.25    0.194   307.76
2035.35    0.194   308.20
2035.45    0.193   308.64
2035.55    0.192   309.08
2035.65    0.191   309.53
2035.75    0.190   309.98
2035.85    0.189   310.44
2035.95    0.188   310.90
2036.05    0.187   311.37
2036.15    0.186   311.84
2036.25    0.185   312.32
2036.35    0.184   312.80
2036.45    0.183   313.28
2036.55    0.182   313.77
2036.65    0.181   314.27
2036.75    0.180   314.77
2036.85    0.179   315.28
2036.95    0.178   315.80
2037.05    0.177   316.32
2037.15    0.176   316.84
2037.25    0.175   317.38
2037.35    0.174   317.92
2037.45    0.173   318.47
2037.55    0.171   319.02
2037.65    0.170   319.58
2037.75    0.169   320.15
2037.85    0.168   320.73
2037.95    0.167   321.31
2038.05    0.166   321.91
2038.15    0.164   322.51
2038.25    0.163   323.12
2038.35    0.162   323.74
2038.45    0.161   324.37
2038.55    0.160   325.01
2038.65    0.158   325.66
2038.75    0.157   326.32
2038.85    0.156   327.00
2038.95    0.154   327.68
2039.05    0.153   328.37
2039.15    0.152   329.08
2039.25    0.151   329.79
2039.35    0.149   330.53
2039.45    0.148   331.27
2039.55    0.147   332.03
2039.65    0.145   332.80
2039.75    0.144   333.58
2039.85    0.143   334.38
2039.95    0.141   335.20



 

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 17:25:27


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