Double Star Calculator - Orbit

Orbital Elements for VOU35AB
WDS: VOU35AB WDS ID/Discoverer
P: 19.547 Orbital period (years)
a: 0.1673 Semi-major axis (arcseconds)
i: 107.8 Inclination (degrees)
Ω: 126.9 Longitude of ascending node (degrees)
T: 2018.160 Epoch of periastron passage (year)
e: 0.39 Eccentricity
ω: 91.4 Longitude of periastron (degrees)
Start-Year: 2015.2265 Year
End-Year: 2034.7735 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for VOU35AB
Position: 213647.56-304328.7 Epoch-2000 right ascension and declination
WDS-ID: 21368-3043 WDS designation
Discoverer Code: VOU35AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 205545 HD catalog number
Hipparcos number: 106701 Hipparcos catalog number
V1: 8.71 Magnitude of the primary
V2: 9.20 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 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: Tok2017b Reference

Double Star Orbit for VOU35AB



WDS 6th Orbit including measures of VOU35AB

-- 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 VOU35AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.082   250.10
--------------------------
2015.23    0.150   129.26
2015.33    0.148   128.61
2015.43    0.146   127.94
2015.53    0.144   127.25
2015.63    0.142   126.55
2015.73    0.140   125.81
2015.83    0.137   125.06
2015.93    0.134   124.26
2016.03    0.131   123.43
2016.13    0.127   122.56
2016.23    0.124   121.64
2016.33    0.120   120.66
2016.43    0.116   119.61
2016.53    0.111   118.48
2016.63    0.106   117.26
2016.73    0.102   115.92
2016.83    0.096   114.44
2016.93    0.091   112.79
2017.03    0.086   110.92
2017.13    0.080   108.80
2017.23    0.074   106.33
2017.33    0.068   103.43
2017.43    0.062    99.97
2017.53    0.056    95.74
2017.63    0.050    90.50
2017.73    0.044    83.89
2017.83    0.039    75.47
2017.93    0.035    64.84
2018.03    0.032    51.89
2018.13    0.031    37.31
2018.23    0.032    22.68
2018.33    0.035     9.57
2018.43    0.039   358.77
2018.53    0.044   350.20
2018.63    0.049   343.47
2018.73    0.055   338.14
2018.83    0.061   333.85
2018.93    0.067   330.33
2019.03    0.073   327.39
2019.13    0.079   324.89
2019.23    0.085   322.74
2019.33    0.091   320.85
2019.43    0.096   319.18
2019.53    0.101   317.68
2019.63    0.106   316.32
2019.73    0.110   315.08
2019.83    0.115   313.93
2019.93    0.119   312.87
2020.03    0.123   311.88
2020.13    0.126   310.94
2020.23    0.130   310.06
2020.33    0.133   309.21
2020.43    0.136   308.41
2020.53    0.138   307.63
2020.63    0.141   306.88
2020.73    0.143   306.16
2020.83    0.145   305.46
2020.93    0.146   304.77
2021.03    0.148   304.10
2021.13    0.149   303.45
2021.23    0.150   302.80
2021.33    0.151   302.16
2021.43    0.152   301.54
2021.53    0.153   300.91
2021.63    0.153   300.29
2021.73    0.154   299.68
2021.83    0.154   299.06
2021.93    0.154   298.45
2022.03    0.154   297.84
2022.13    0.154   297.22
2022.23    0.153   296.61
2022.33    0.153   295.99
2022.43    0.152   295.36
2022.53    0.151   294.73
2022.63    0.151   294.10
2022.73    0.150   293.45
2022.83    0.149   292.80
2022.93    0.148   292.14
2023.03    0.146   291.47
2023.13    0.145   290.79
2023.23    0.144   290.09
2023.33    0.142   289.39
2023.43    0.141   288.66
2023.53    0.139   287.92
2023.63    0.138   287.17
2023.73    0.136   286.40
2023.83    0.134   285.60
2023.93    0.133   284.79
2024.03    0.131   283.95
2024.13    0.129   283.09
2024.23    0.127   282.20
2024.33    0.125   281.29
2024.43    0.123   280.35
2024.53    0.121   279.37
2024.63    0.119   278.37
2024.73    0.117   277.33
2024.83    0.115   276.25
2024.93    0.113   275.13
2025.03    0.111   273.97
2025.13    0.109   272.76
2025.23    0.107   271.50
2025.33    0.104   270.20
2025.43    0.102   268.84
2025.53    0.100   267.43
2025.63    0.098   265.95
2025.73    0.096   264.42
2025.83    0.094   262.82
2025.93    0.092   261.15
2026.03    0.090   259.40
2026.13    0.088   257.59
2026.23    0.087   255.69
2026.33    0.085   253.72
2026.43    0.083   251.67
2026.53    0.082   249.53
2026.63    0.080   247.31
2026.73    0.079   245.00
2026.83    0.077   242.62
2026.93    0.076   240.15
2027.03    0.075   237.61
2027.13    0.074   235.00
2027.23    0.073   232.32
2027.33    0.072   229.59
2027.43    0.072   226.81
2027.53    0.071   223.98
2027.63    0.071   221.13
2027.73    0.071   218.26
2027.83    0.071   215.39
2027.93    0.071   212.53
2028.03    0.072   209.68
2028.13    0.072   206.87
2028.23    0.073   204.10
2028.33    0.073   201.38
2028.43    0.074   198.72
2028.53    0.075   196.13
2028.63    0.076   193.61
2028.73    0.078   191.16
2028.83    0.079   188.80
2028.93    0.081   186.52
2029.03    0.082   184.32
2029.13    0.084   182.21
2029.23    0.085   180.18
2029.33    0.087   178.23
2029.43    0.089   176.36
2029.53    0.091   174.56
2029.63    0.093   172.84
2029.73    0.095   171.19
2029.83    0.097   169.61
2029.93    0.099   168.10
2030.03    0.101   166.64
2030.13    0.103   165.25
2030.23    0.105   163.91
2030.33    0.107   162.62
2030.43    0.109   161.38
2030.53    0.111   160.19
2030.63    0.114   159.05
2030.73    0.116   157.94
2030.83    0.118   156.88
2030.93    0.120   155.85
2031.03    0.122   154.86
2031.13    0.124   153.90
2031.23    0.126   152.97
2031.33    0.128   152.07
2031.43    0.130   151.19
2031.53    0.132   150.35
2031.63    0.134   149.52
2031.73    0.135   148.72
2031.83    0.137   147.94
2031.93    0.139   147.18
2032.03    0.141   146.44
2032.13    0.142   145.71
2032.23    0.144   145.01
2032.33    0.145   144.31
2032.43    0.147   143.63
2032.53    0.148   142.96
2032.63    0.149   142.31
2032.73    0.151   141.66
2032.83    0.152   141.02
2032.93    0.153   140.40
2033.03    0.154   139.78
2033.13    0.154   139.17
2033.23    0.155   138.56
2033.33    0.156   137.96
2033.43    0.156   137.36
2033.53    0.157   136.77
2033.63    0.157   136.18
2033.73    0.157   135.59
2033.83    0.157   135.00
2033.93    0.157   134.42
2034.03    0.157   133.83
2034.13    0.156   133.23
2034.23    0.156   132.64
2034.33    0.155   132.04
2034.43    0.154   131.43
2034.53    0.153   130.82
2034.63    0.152   130.20
2034.73    0.151   129.56






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 18:27:34



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