Double Star Calculator - Orbit

Orbital Elements for CHR164AA,AB
WDS: CHR164AA,AB WDS ID/Discoverer
P: 18.940 Orbital period (years)
a: 0.0491 Semi-major axis (arcseconds)
i: 57.8 Inclination (degrees)
Ω: 287.4 Longitude of ascending node (degrees)
T: 2017.280 Epoch of periastron passage (year)
e: 0.762 Eccentricity
ω: 227.1 Longitude of periastron (degrees)
Start-Year: 2015.53 Year
End-Year: 2034.47 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for CHR164AA,AB
Position: 061436.71-043406.5 Epoch-2000 right ascension and declination
WDS-ID: 06146-0434 WDS designation
Discoverer Code: CHR164AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 29629 Hipparcos catalog number
V1: 6.4 Magnitude of the primary
V2: 6.8 Magnitude of the secondary
Equinox: 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: Tok2020e Reference

Double Star Orbit for CHR164AA,AB



WDS 6th Orbit including measures of CHR164AA,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 CHR164AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.069   316.38
--------------------------
2015.53    0.022    31.91
2015.63    0.021    35.37
2015.73    0.021    39.00
2015.83    0.020    42.83
2015.93    0.020    46.84
2016.03    0.019    51.04
2016.13    0.019    55.43
2016.23    0.018    60.00
2016.33    0.018    64.76
2016.43    0.018    69.71
2016.53    0.017    74.87
2016.63    0.017    80.27
2016.73    0.016    85.97
2016.83    0.016    92.09
2016.93    0.015    98.83
2017.03    0.014   106.56
2017.13    0.012   116.03
2017.23    0.010   128.77
2017.33    0.008   147.76
2017.43    0.007   176.17
2017.53    0.007   208.15
2017.63    0.009   231.73
2017.73    0.012   246.27
2017.83    0.015   255.50
2017.93    0.017   261.83
2018.03    0.020   266.46
2018.13    0.022   270.04
2018.23    0.025   272.92
2018.33    0.027   275.31
2018.43    0.029   277.33
2018.53    0.031   279.09
2018.63    0.033   280.64
2018.73    0.035   282.02
2018.83    0.036   283.27
2018.93    0.038   284.41
2019.03    0.040   285.45
2019.13    0.041   286.42
2019.23    0.043   287.32
2019.33    0.044   288.16
2019.43    0.045   288.95
2019.53    0.047   289.70
2019.63    0.048   290.41
2019.73    0.049   291.08
2019.83    0.050   291.73
2019.93    0.051   292.34
2020.03    0.052   292.93
2020.13    0.053   293.50
2020.23    0.054   294.05
2020.33    0.055   294.58
2020.43    0.056   295.10
2020.53    0.057   295.59
2020.63    0.058   296.08
2020.73    0.058   296.55
2020.83    0.059   297.01
2020.93    0.060   297.45
2021.03    0.061   297.89
2021.13    0.061   298.32
2021.23    0.062   298.73
2021.33    0.062   299.14
2021.43    0.063   299.55
2021.53    0.064   299.94
2021.63    0.064   300.33
2021.73    0.065   300.71
2021.83    0.065   301.09
2021.93    0.066   301.46
2022.03    0.066   301.82
2022.13    0.066   302.18
2022.23    0.067   302.54
2022.33    0.067   302.89
2022.43    0.068   303.24
2022.53    0.068   303.59
2022.63    0.068   303.93
2022.73    0.068   304.27
2022.83    0.069   304.60
2022.93    0.069   304.94
2023.03    0.069   305.27
2023.13    0.069   305.60
2023.23    0.070   305.92
2023.33    0.070   306.25
2023.43    0.070   306.57
2023.53    0.070   306.89
2023.63    0.070   307.21
2023.73    0.071   307.53
2023.83    0.071   307.85
2023.93    0.071   308.16
2024.03    0.071   308.48
2024.13    0.071   308.80
2024.23    0.071   309.11
2024.33    0.071   309.42
2024.43    0.071   309.74
2024.53    0.071   310.05
2024.63    0.071   310.37
2024.73    0.071   310.68
2024.83    0.071   310.99
2024.93    0.071   311.31
2025.03    0.071   311.62
2025.13    0.071   311.94
2025.23    0.071   312.26
2025.33    0.071   312.57
2025.43    0.070   312.89
2025.53    0.070   313.21
2025.63    0.070   313.53
2025.73    0.070   313.85
2025.83    0.070   314.17
2025.93    0.070   314.50
2026.03    0.070   314.82
2026.13    0.069   315.15
2026.23    0.069   315.48
2026.33    0.069   315.81
2026.43    0.069   316.15
2026.53    0.068   316.48
2026.63    0.068   316.82
2026.73    0.068   317.16
2026.83    0.068   317.51
2026.93    0.067   317.85
2027.03    0.067   318.20
2027.13    0.067   318.56
2027.23    0.066   318.91
2027.33    0.066   319.27
2027.43    0.066   319.64
2027.53    0.065   320.00
2027.63    0.065   320.38
2027.73    0.065   320.75
2027.83    0.064   321.13
2027.93    0.064   321.52
2028.03    0.064   321.91
2028.13    0.063   322.30
2028.23    0.063   322.70
2028.33    0.062   323.11
2028.43    0.062   323.52
2028.53    0.061   323.93
2028.63    0.061   324.36
2028.73    0.060   324.79
2028.83    0.060   325.22
2028.93    0.059   325.67
2029.03    0.059   326.12
2029.13    0.058   326.58
2029.23    0.058   327.05
2029.33    0.057   327.53
2029.43    0.057   328.01
2029.53    0.056   328.51
2029.63    0.056   329.01
2029.73    0.055   329.53
2029.83    0.055   330.05
2029.93    0.054   330.59
2030.03    0.053   331.14
2030.13    0.053   331.70
2030.23    0.052   332.28
2030.33    0.051   332.87
2030.43    0.051   333.47
2030.53    0.050   334.09
2030.63    0.050   334.73
2030.73    0.049   335.38
2030.83    0.048   336.05
2030.93    0.048   336.74
2031.03    0.047   337.45
2031.13    0.046   338.18
2031.23    0.045   338.93
2031.33    0.045   339.71
2031.43    0.044   340.51
2031.53    0.043   341.34
2031.63    0.043   342.19
2031.73    0.042   343.08
2031.83    0.041   344.00
2031.93    0.040   344.95
2032.03    0.040   345.94
2032.13    0.039   346.96
2032.23    0.038   348.03
2032.33    0.037   349.14
2032.43    0.037   350.29
2032.53    0.036   351.50
2032.63    0.035   352.76
2032.73    0.034   354.08
2032.83    0.033   355.45
2032.93    0.033   356.90
2033.03    0.032   358.41
2033.13    0.031     0.00
2033.23    0.030     1.67
2033.33    0.030     3.43
2033.43    0.029     5.28
2033.53    0.028     7.23
2033.63    0.027     9.29
2033.73    0.027    11.46
2033.83    0.026    13.76
2033.93    0.025    16.19
2034.03    0.024    18.75
2034.13    0.024    21.47
2034.23    0.023    24.34
2034.33    0.023    27.37
2034.43    0.022    30.58






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 15:44:57



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