Double Star Calculator - Orbit

Orbital Elements for CHR146AA,AB
WDS: CHR146AA,AB WDS ID/Discoverer
P: 10.061 Orbital period (years)
a: 0.0733 Semi-major axis (arcseconds)
i: 89.7 Inclination (degrees)
Ω: 346.4 Longitude of ascending node (degrees)
T: 2014.987 Epoch of periastron passage (year)
e: 0.92 Eccentricity
ω: 118.9 Longitude of periastron (degrees)
Start-Year: 2019.9695 Year
End-Year: 2030.0305 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for CHR146AA,AB
Position: 161159.74-192738.3 Epoch-2000 right ascension and declination
WDS-ID: 16120-1928 WDS designation
Discoverer Code: CHR146AA,AB Discover designation and components
ADS number: 9951 Aitken Double Star catalog
HD number: 145502 HD catalog number
Hipparcos number: 79374 Hipparcos catalog number
V1: 4.5 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: n Flags
Ephemerides: Ephemerides
Code: Tok2024c Reference

Double Star Orbit for CHR146AA,AB



WDS 6th Orbit including measures of CHR146AA,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 CHR146AA,AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.016   344.79
--------------------------
2019.97    0.068   345.85
2020.07    0.068   345.86
2020.17    0.069   345.87
2020.27    0.070   345.88
2020.37    0.071   345.89
2020.47    0.071   345.89
2020.57    0.072   345.90
2020.67    0.073   345.91
2020.77    0.073   345.92
2020.87    0.074   345.92
2020.97    0.074   345.93
2021.07    0.074   345.94
2021.17    0.075   345.94
2021.27    0.075   345.95
2021.37    0.075   345.96
2021.47    0.076   345.97
2021.57    0.076   345.97
2021.67    0.076   345.98
2021.77    0.076   345.99
2021.87    0.076   345.99
2021.97    0.076   346.00
2022.07    0.076   346.01
2022.17    0.076   346.01
2022.27    0.076   346.02
2022.37    0.075   346.03
2022.47    0.075   346.03
2022.57    0.075   346.04
2022.67    0.074   346.05
2022.77    0.073   346.06
2022.87    0.073   346.06
2022.97    0.072   346.07
2023.07    0.071   346.08
2023.17    0.070   346.09
2023.27    0.069   346.09
2023.37    0.068   346.10
2023.47    0.067   346.11
2023.57    0.066   346.12
2023.67    0.064   346.13
2023.77    0.062   346.14
2023.87    0.061   346.15
2023.97    0.059   346.16
2024.07    0.056   346.17
2024.17    0.054   346.19
2024.27    0.051   346.20
2024.37    0.048   346.22
2024.47    0.044   346.24
2024.57    0.040   346.26
2024.67    0.036   346.28
2024.77    0.030   346.32
2024.87    0.022   346.38
2024.97    0.011   346.53
2025.07    0.006   166.30
2025.17    0.011   166.76
2025.27    0.010   167.11
2025.37    0.009   167.56
2025.47    0.006   168.27
2025.57    0.004   169.69
2025.67    0.002   174.14
2025.77    0.000   293.26
2025.87    0.003   338.84
2025.97    0.005   342.12
2026.07    0.007   343.31
2026.17    0.009   343.92
2026.27    0.011   344.30
2026.37    0.014   344.55
2026.47    0.016   344.74
2026.57    0.018   344.88
2026.67    0.020   345.00
2026.77    0.022   345.09
2026.87    0.024   345.17
2026.97    0.026   345.23
2027.07    0.027   345.29
2027.17    0.029   345.34
2027.27    0.031   345.38
2027.37    0.033   345.42
2027.47    0.035   345.45
2027.57    0.036   345.48
2027.67    0.038   345.51
2027.77    0.040   345.54
2027.87    0.041   345.56
2027.97    0.043   345.58
2028.07    0.044   345.60
2028.17    0.046   345.62
2028.27    0.047   345.64
2028.37    0.049   345.66
2028.47    0.050   345.68
2028.57    0.052   345.69
2028.67    0.053   345.71
2028.77    0.054   345.72
2028.87    0.055   345.73
2028.97    0.057   345.74
2029.07    0.058   345.76
2029.17    0.059   345.77
2029.27    0.060   345.78
2029.37    0.061   345.79
2029.47    0.062   345.80
2029.57    0.063   345.81
2029.67    0.064   345.82
2029.77    0.065   345.83
2029.87    0.066   345.84
2029.97    0.067   345.85



 

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 17:23:54


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