Double Star Calculator - Orbit

Orbital Elements for HDS669
WDS: HDS669 WDS ID/Discoverer
P: 26.990 Orbital period (years)
a: 0.2742 Semi-major axis (arcseconds)
i: 61.6 Inclination (degrees)
Ω: 2.4 Longitude of ascending node (degrees)
T: 2014.340 Epoch of periastron passage (year)
e: 0.654 Eccentricity
ω: 70.7 Longitude of periastron (degrees)
Start-Year: 2011.505 Year
End-Year: 2038.495 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS669
Position: 050718.31-835136.9 Epoch-2000 right ascension and declination
WDS-ID: 05073-8352 WDS designation
Discoverer Code: HDS669 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 35877 HD catalog number
Hipparcos number: 23824 Hipparcos catalog number
V1: 7.03 Magnitude of the primary
V2: 9.56 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 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: Tok2016c Reference

Double Star Orbit for HDS669



WDS 6th Orbit including measures of HDS669

-- 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 HDS669
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.269   228.96
--------------------------
2011.51    0.172   335.70
2011.61    0.172   336.92
2011.70    0.171   338.15
2011.80    0.170   339.40
2011.90    0.168   340.66
2012.00    0.167   341.95
2012.10    0.166   343.25
2012.20    0.164   344.58
2012.30    0.162   345.94
2012.40    0.160   347.33
2012.50    0.158   348.76
2012.60    0.155   350.24
2012.70    0.152   351.76
2012.80    0.149   353.35
2012.90    0.146   355.00
2013.00    0.142   356.74
2013.10    0.138   358.58
2013.20    0.133     0.54
2013.30    0.128     2.64
2013.40    0.123     4.92
2013.50    0.117     7.43
2013.60    0.110    10.22
2013.70    0.103    13.39
2013.80    0.096    17.04
2013.90    0.088    21.35
2014.00    0.079    26.55
2014.10    0.071    33.00
2014.20    0.062    41.19
2014.30    0.055    51.70
2014.40    0.049    65.04
2014.50    0.046    80.96
2014.60    0.047    97.87
2014.70    0.050   113.46
2014.80    0.056   126.32
2014.90    0.064   136.36
2015.00    0.073   144.11
2015.10    0.082   150.16
2015.20    0.091   154.98
2015.30    0.101   158.92
2015.40    0.110   162.19
2015.50    0.118   164.97
2015.60    0.127   167.37
2015.70    0.135   169.48
2015.80    0.143   171.35
2015.90    0.151   173.02
2016.00    0.158   174.54
2016.10    0.165   175.93
2016.20    0.171   177.21
2016.30    0.178   178.39
2016.40    0.184   179.50
2016.50    0.190   180.54
2016.60    0.195   181.51
2016.70    0.200   182.43
2016.80    0.205   183.31
2016.90    0.210   184.15
2017.00    0.215   184.94
2017.10    0.219   185.71
2017.20    0.224   186.44
2017.30    0.228   187.15
2017.40    0.232   187.83
2017.50    0.235   188.49
2017.60    0.239   189.14
2017.70    0.242   189.76
2017.80    0.246   190.36
2017.90    0.249   190.95
2018.00    0.252   191.53
2018.10    0.255   192.09
2018.20    0.258   192.64
2018.30    0.260   193.18
2018.40    0.263   193.71
2018.50    0.265   194.22
2018.60    0.267   194.73
2018.70    0.270   195.23
2018.80    0.272   195.73
2018.90    0.274   196.21
2019.00    0.276   196.69
2019.10    0.277   197.16
2019.20    0.279   197.63
2019.30    0.281   198.09
2019.40    0.282   198.54
2019.50    0.284   198.99
2019.60    0.285   199.44
2019.70    0.286   199.88
2019.80    0.288   200.32
2019.90    0.289   200.76
2020.00    0.290   201.19
2020.10    0.291   201.61
2020.20    0.292   202.04
2020.30    0.293   202.46
2020.40    0.294   202.88
2020.50    0.294   203.30
2020.60    0.295   203.71
2020.70    0.296   204.13
2020.80    0.296   204.54
2020.90    0.297   204.95
2021.00    0.297   205.36
2021.10    0.298   205.77
2021.20    0.298   206.17
2021.30    0.298   206.58
2021.40    0.299   206.98
2021.50    0.299   207.39
2021.60    0.299   207.79
2021.70    0.299   208.19
2021.80    0.299   208.60
2021.90    0.299   209.00
2022.00    0.299   209.40
2022.10    0.299   209.80
2022.20    0.299   210.21
2022.30    0.299   210.61
2022.40    0.299   211.01
2022.50    0.299   211.42
2022.60    0.299   211.82
2022.70    0.298   212.22
2022.80    0.298   212.63
2022.90    0.298   213.04
2023.00    0.298   213.44
2023.10    0.297   213.85
2023.20    0.297   214.26
2023.30    0.296   214.67
2023.40    0.296   215.08
2023.50    0.295   215.50
2023.60    0.295   215.91
2023.70    0.294   216.33
2023.80    0.294   216.75
2023.90    0.293   217.17
2024.00    0.292   217.59
2024.10    0.292   218.01
2024.20    0.291   218.44
2024.30    0.290   218.86
2024.40    0.289   219.29
2024.50    0.289   219.73
2024.60    0.288   220.16
2024.70    0.287   220.60
2024.80    0.286   221.04
2024.90    0.285   221.48
2025.00    0.284   221.92
2025.10    0.283   222.37
2025.20    0.283   222.82
2025.30    0.282   223.27
2025.40    0.281   223.73
2025.50    0.280   224.19
2025.60    0.279   224.65
2025.70    0.278   225.12
2025.80    0.277   225.59
2025.90    0.276   226.06
2026.00    0.274   226.54
2026.10    0.273   227.02
2026.20    0.272   227.51
2026.30    0.271   228.00
2026.40    0.270   228.49
2026.50    0.269   228.98
2026.60    0.268   229.49
2026.70    0.267   229.99
2026.80    0.265   230.50
2026.90    0.264   231.02
2027.00    0.263   231.53
2027.10    0.262   232.06
2027.20    0.261   232.59
2027.30    0.259   233.12
2027.40    0.258   233.66
2027.50    0.257   234.20
2027.60    0.256   234.75
2027.70    0.254   235.31
2027.80    0.253   235.87
2027.90    0.252   236.43
2028.00    0.251   237.00
2028.10    0.249   237.58
2028.20    0.248   238.16
2028.30    0.247   238.75
2028.40    0.246   239.35
2028.50    0.244   239.95
2028.60    0.243   240.56
2028.70    0.242   241.17
2028.80    0.240   241.79
2028.90    0.239   242.42
2029.00    0.238   243.06
2029.10    0.236   243.70
2029.20    0.235   244.35
2029.30    0.234   245.00
2029.40    0.233   245.67
2029.50    0.231   246.34
2029.60    0.230   247.02
2029.70    0.229   247.70
2029.80    0.227   248.40
2029.90    0.226   249.10
2030.00    0.225   249.81
2030.10    0.224   250.52
2030.20    0.222   251.25
2030.30    0.221   251.98
2030.40    0.220   252.72
2030.50    0.219   253.47
2030.60    0.218   254.23
2030.70    0.216   255.00
2030.80    0.215   255.77
2030.90    0.214   256.56
2031.00    0.213   257.35
2031.10    0.212   258.15
2031.20    0.210   258.96
2031.30    0.209   259.78
2031.40    0.208   260.61
2031.50    0.207   261.45
2031.60    0.206   262.29
2031.70    0.205   263.15
2031.80    0.204   264.01
2031.90    0.203   264.88
2032.00    0.202   265.76
2032.10    0.201   266.65
2032.20    0.200   267.55
2032.30    0.199   268.46
2032.40    0.198   269.38
2032.50    0.197   270.30
2032.60    0.196   271.24
2032.70    0.195   272.18
2032.80    0.194   273.13
2032.90    0.193   274.09
2033.00    0.193   275.06
2033.10    0.192   276.04
2033.20    0.191   277.02
2033.30    0.190   278.01
2033.40    0.190   279.01
2033.50    0.189   280.02
2033.60    0.188   281.03
2033.70    0.188   282.05
2033.80    0.187   283.08
2033.90    0.186   284.12
2034.00    0.186   285.16
2034.10    0.185   286.21
2034.20    0.185   287.26
2034.30    0.184   288.32
2034.40    0.184   289.39
2034.50    0.183   290.46
2034.60    0.183   291.54
2034.70    0.182   292.62
2034.80    0.182   293.70
2034.90    0.182   294.79
2035.00    0.181   295.89
2035.10    0.181   296.99
2035.20    0.181   298.09
2035.30    0.181   299.19
2035.40    0.180   300.30
2035.50    0.180   301.41
2035.60    0.180   302.53
2035.70    0.180   303.64
2035.80    0.179   304.76
2035.90    0.179   305.88
2036.00    0.179   307.01
2036.10    0.179   308.13
2036.20    0.179   309.26
2036.30    0.179   310.39
2036.40    0.179   311.52
2036.50    0.179   312.65
2036.60    0.178   313.78
2036.70    0.178   314.92
2036.80    0.178   316.05
2036.90    0.178   317.19
2037.00    0.178   318.33
2037.10    0.178   319.47
2037.20    0.178   320.61
2037.30    0.177   321.76
2037.40    0.177   322.91
2037.50    0.177   324.06
2037.60    0.177   325.21
2037.70    0.176   326.37
2037.80    0.176   327.53
2037.90    0.176   328.69
2038.00    0.175   329.86
2038.10    0.175   331.04
2038.20    0.174   332.22
2038.30    0.174   333.41
2038.40    0.173   334.61






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 15:34:05



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