Double Star Calculator - Orbit

Orbital Elements for BOY4AA,AB
WDS: BOY4AA,AB WDS ID/Discoverer
P: 18.620 Orbital period (years)
a: 0.12 Semi-major axis (arcseconds)
i: 35.4 Inclination (degrees)
Ω: 72.3 Longitude of ascending node (degrees)
T: 2019.372 Epoch of periastron passage (year)
e: 0.158 Eccentricity
ω: 7.0 Longitude of periastron (degrees)
Start-Year: 2015.69 Year
End-Year: 2034.31 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BOY4AA,AB
Position: 101707.55+130839.4 Epoch-2000 right ascension and declination
WDS-ID: 10171+1309 WDS designation
Discoverer Code: BOY4AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 17.88 Magnitude of the primary
V2: 18.65 Magnitude of the secondary
Equinox: Equinox
Date: 2013 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Dup2017 Reference

Double Star Orbit for BOY4AA,AB



WDS 6th Orbit including measures of BOY4AA,AB

-- 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 BOY4AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.131   231.80
--------------------------
2015.69    0.096   351.86
2015.79    0.095   354.32
2015.89    0.095   356.79
2015.99    0.095   359.27
2016.09    0.095     1.76
2016.19    0.095     4.25
2016.29    0.095     6.75
2016.39    0.095     9.24
2016.49    0.095    11.73
2016.59    0.095    14.21
2016.69    0.095    16.69
2016.79    0.095    19.15
2016.89    0.096    21.60
2016.99    0.096    24.04
2017.09    0.096    26.46
2017.19    0.097    28.87
2017.29    0.097    31.26
2017.39    0.097    33.64
2017.49    0.098    35.99
2017.59    0.098    38.33
2017.69    0.098    40.65
2017.79    0.099    42.95
2017.89    0.099    45.24
2017.99    0.100    47.51
2018.09    0.100    49.77
2018.19    0.100    52.01
2018.29    0.100    54.24
2018.39    0.101    56.46
2018.49    0.101    58.67
2018.59    0.101    60.87
2018.69    0.101    63.07
2018.79    0.101    65.26
2018.89    0.101    67.44
2018.99    0.101    69.63
2019.09    0.101    71.82
2019.19    0.101    74.01
2019.29    0.101    76.21
2019.39    0.101    78.41
2019.49    0.101    80.63
2019.59    0.100    82.85
2019.69    0.100    85.08
2019.79    0.100    87.33
2019.89    0.099    89.60
2019.99    0.099    91.88
2020.09    0.098    94.19
2020.19    0.098    96.51
2020.29    0.097    98.86
2020.39    0.097   101.23
2020.49    0.097   103.62
2020.59    0.096   106.04
2020.69    0.096   108.48
2020.79    0.095   110.95
2020.89    0.095   113.44
2020.99    0.094   115.96
2021.09    0.094   118.51
2021.19    0.093   121.07
2021.29    0.093   123.66
2021.39    0.093   126.27
2021.49    0.092   128.90
2021.59    0.092   131.54
2021.69    0.092   134.20
2021.79    0.092   136.86
2021.89    0.092   139.53
2021.99    0.092   142.21
2022.09    0.092   144.88
2022.19    0.092   147.55
2022.29    0.092   150.21
2022.39    0.092   152.86
2022.49    0.092   155.49
2022.59    0.093   158.11
2022.69    0.093   160.70
2022.79    0.094   163.26
2022.89    0.094   165.79
2022.99    0.095   168.29
2023.09    0.096   170.76
2023.19    0.096   173.19
2023.29    0.097   175.57
2023.39    0.098   177.92
2023.49    0.099   180.23
2023.59    0.100   182.49
2023.69    0.101   184.71
2023.79    0.102   186.88
2023.89    0.103   189.02
2023.99    0.104   191.10
2024.09    0.105   193.15
2024.19    0.106   195.15
2024.29    0.108   197.10
2024.39    0.109   199.02
2024.49    0.110   200.89
2024.59    0.111   202.73
2024.69    0.112   204.53
2024.79    0.113   206.29
2024.89    0.115   208.01
2024.99    0.116   209.70
2025.09    0.117   211.35
2025.19    0.118   212.97
2025.29    0.119   214.56
2025.39    0.120   216.12
2025.49    0.122   217.65
2025.59    0.123   219.16
2025.69    0.124   220.64
2025.79    0.125   222.09
2025.89    0.126   223.52
2025.99    0.127   224.93
2026.09    0.128   226.31
2026.19    0.129   227.68
2026.29    0.129   229.03
2026.39    0.130   230.35
2026.49    0.131   231.67
2026.59    0.132   232.96
2026.69    0.133   234.24
2026.79    0.133   235.51
2026.89    0.134   236.76
2026.99    0.135   238.01
2027.09    0.135   239.24
2027.19    0.136   240.46
2027.29    0.136   241.67
2027.39    0.137   242.87
2027.49    0.137   244.07
2027.59    0.137   245.26
2027.69    0.138   246.44
2027.79    0.138   247.62
2027.89    0.138   248.79
2027.99    0.139   249.96
2028.09    0.139   251.13
2028.19    0.139   252.29
2028.29    0.139   253.45
2028.39    0.139   254.62
2028.49    0.139   255.78
2028.59    0.139   256.94
2028.69    0.139   258.11
2028.79    0.138   259.28
2028.89    0.138   260.45
2028.99    0.138   261.62
2029.09    0.138   262.80
2029.19    0.137   263.99
2029.29    0.137   265.18
2029.39    0.137   266.38
2029.49    0.136   267.58
2029.59    0.136   268.80
2029.69    0.135   270.02
2029.79    0.134   271.26
2029.89    0.134   272.50
2029.99    0.133   273.76
2030.09    0.132   275.03
2030.19    0.132   276.31
2030.29    0.131   277.61
2030.39    0.130   278.93
2030.49    0.129   280.26
2030.59    0.129   281.60
2030.69    0.128   282.97
2030.79    0.127   284.36
2030.89    0.126   285.76
2030.99    0.125   287.19
2031.09    0.124   288.64
2031.19    0.123   290.11
2031.29    0.122   291.61
2031.39    0.121   293.13
2031.49    0.120   294.68
2031.59    0.119   296.26
2031.69    0.118   297.86
2031.79    0.117   299.50
2031.89    0.115   301.16
2031.99    0.114   302.86
2032.09    0.113   304.59
2032.19    0.112   306.35
2032.29    0.111   308.14
2032.39    0.110   309.98
2032.49    0.109   311.84
2032.59    0.108   313.74
2032.69    0.107   315.68
2032.79    0.106   317.66
2032.89    0.105   319.67
2032.99    0.104   321.72
2033.09    0.103   323.80
2033.19    0.102   325.93
2033.29    0.101   328.09
2033.39    0.101   330.28
2033.49    0.100   332.51
2033.59    0.099   334.77
2033.69    0.099   337.06
2033.79    0.098   339.38
2033.89    0.097   341.73
2033.99    0.097   344.11
2034.09    0.096   346.51
2034.19    0.096   348.93
2034.29    0.096   351.37






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 16:26:03



www.stella-vega.de