Double Star Calculator - Orbit

Orbital Elements for TOK725
WDS: TOK725 WDS ID/Discoverer
P: 11.260 Orbital period (years)
a: 0.08241 Semi-major axis (arcseconds)
i: 166.6 Inclination (degrees)
Ω: 198.0 Longitude of ascending node (degrees)
T: 2020.729 Epoch of periastron passage (year)
e: 0.5685 Eccentricity
ω: 334.0 Longitude of periastron (degrees)
Start-Year: 2019.37 Year
End-Year: 2030.63 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for TOK725
Position: 155339.73-042919.1 Epoch-2000 right ascension and declination
WDS-ID: 15537-0429 WDS designation
Discoverer Code: TOK725 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 142269 HD catalog number
Hipparcos number: 77843 Hipparcos catalog number
V1: 9.0 Magnitude of the primary
V2: 10.5 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: Msn2023 Reference

Double Star Orbit for TOK725



WDS 6th Orbit including measures of TOK725

-- 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 TOK725
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.129    41.90
--------------------------
2019.37    0.069   335.98
2019.47    0.066   332.20
2019.57    0.063   328.04
2019.67    0.060   323.44
2019.77    0.057   318.33
2019.87    0.053   312.59
2019.97    0.050   306.12
2020.07    0.047   298.78
2020.17    0.044   290.43
2020.27    0.041   280.94
2020.37    0.039   270.22
2020.47    0.037   258.27
2020.57    0.036   245.27
2020.67    0.035   231.58
2020.77    0.036   217.71
2020.87    0.036   204.19
2020.97    0.038   191.47
2021.07    0.040   179.82
2021.17    0.042   169.33
2021.27    0.044   159.98
2021.37    0.047   151.68
2021.47    0.050   144.32
2021.57    0.053   137.77
2021.67    0.056   131.91
2021.77    0.059   126.65
2021.87    0.062   121.89
2021.97    0.065   117.57
2022.07    0.068   113.62
2022.17    0.071   109.99
2022.27    0.073   106.64
2022.37    0.076   103.53
2022.47    0.079   100.63
2022.57    0.081    97.92
2022.67    0.084    95.38
2022.77    0.086    92.98
2022.87    0.089    90.71
2022.97    0.091    88.55
2023.07    0.093    86.50
2023.17    0.095    84.55
2023.27    0.097    82.67
2023.37    0.099    80.88
2023.47    0.101    79.15
2023.57    0.103    77.49
2023.67    0.105    75.88
2023.77    0.107    74.33
2023.87    0.108    72.83
2023.97    0.110    71.37
2024.07    0.111    69.95
2024.17    0.113    68.56
2024.27    0.114    67.22
2024.37    0.116    65.90
2024.47    0.117    64.61
2024.57    0.118    63.35
2024.67    0.119    62.11
2024.77    0.120    60.90
2024.87    0.121    59.70
2024.97    0.122    58.53
2025.07    0.123    57.37
2025.17    0.124    56.23
2025.27    0.124    55.10
2025.37    0.125    53.98
2025.47    0.126    52.88
2025.57    0.126    51.78
2025.67    0.127    50.70
2025.77    0.127    49.62
2025.87    0.128    48.55
2025.97    0.128    47.49
2026.07    0.128    46.43
2026.17    0.128    45.37
2026.27    0.129    44.32
2026.37    0.129    43.27
2026.47    0.129    42.22
2026.57    0.129    41.17
2026.67    0.128    40.11
2026.77    0.128    39.06
2026.87    0.128    38.00
2026.97    0.128    36.94
2027.07    0.127    35.87
2027.17    0.127    34.80
2027.27    0.127    33.72
2027.37    0.126    32.63
2027.47    0.125    31.53
2027.57    0.125    30.42
2027.67    0.124    29.29
2027.77    0.123    28.15
2027.87    0.122    27.00
2027.97    0.121    25.83
2028.07    0.120    24.64
2028.17    0.119    23.43
2028.27    0.118    22.20
2028.37    0.117    20.95
2028.47    0.116    19.66
2028.57    0.114    18.35
2028.67    0.113    17.01
2028.77    0.112    15.63
2028.87    0.110    14.21
2028.97    0.108    12.76
2029.07    0.107    11.25
2029.17    0.105     9.70
2029.27    0.103     8.09
2029.37    0.101     6.42
2029.47    0.099     4.68
2029.57    0.097     2.87
2029.67    0.095     0.98
2029.77    0.092   358.99
2029.87    0.090   356.91
2029.97    0.088   354.71
2030.07    0.085   352.38
2030.17    0.082   349.90
2030.27    0.080   347.26
2030.37    0.077   344.43
2030.47    0.074   341.39
2030.57    0.071   338.09



 

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 17:20:57


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