Double Star Calculator - Orbit

Orbital Elements for TOK56
WDS: TOK56 WDS ID/Discoverer
P: 10.140 Orbital period (years)
a: 0.045 Semi-major axis (arcseconds)
i: 29.7 Inclination (degrees)
Ω: 215.7 Longitude of ascending node (degrees)
T: 2024.200 Epoch of periastron passage (year)
e: 0.464 Eccentricity
ω: 263.4 Longitude of periastron (degrees)
Start-Year: 2019.93 Year
End-Year: 2030.07 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for TOK56
Position: 180223.05+205001.1 Epoch-2000 right ascension and declination
WDS-ID: 18024+2050 WDS designation
Discoverer Code: TOK56 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 164852 HD catalog number
Hipparcos number: 88331 Hipparcos catalog number
V1: 5.6 Magnitude of the primary
V2: 6.7 Magnitude of the secondary
Equinox: Equinox
Date: 2021 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: Tok2021f Reference

Double Star Orbit for TOK56



WDS 6th Orbit including measures of TOK56

-- 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 TOK56
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.049   247.21
--------------------------
2019.93    0.056   311.78
2020.03    0.056   313.53
2020.13    0.056   315.30
2020.23    0.056   317.09
2020.33    0.055   318.89
2020.43    0.055   320.72
2020.53    0.055   322.56
2020.63    0.054   324.43
2020.73    0.054   326.32
2020.83    0.053   328.25
2020.93    0.053   330.20
2021.03    0.053   332.18
2021.13    0.052   334.20
2021.23    0.052   336.26
2021.33    0.051   338.36
2021.43    0.051   340.50
2021.53    0.050   342.69
2021.63    0.049   344.94
2021.73    0.049   347.24
2021.83    0.048   349.61
2021.93    0.047   352.05
2022.03    0.047   354.57
2022.13    0.046   357.17
2022.23    0.045   359.86
2022.33    0.044     2.66
2022.43    0.043     5.58
2022.53    0.042     8.64
2022.63    0.041    11.84
2022.73    0.040    15.21
2022.83    0.039    18.78
2022.93    0.038    22.58
2023.03    0.036    26.63
2023.13    0.035    30.99
2023.23    0.034    35.72
2023.33    0.032    40.87
2023.43    0.030    46.53
2023.53    0.029    52.80
2023.63    0.027    59.79
2023.73    0.026    67.65
2023.83    0.024    76.50
2023.93    0.023    86.44
2024.03    0.022    97.46
2024.13    0.021   109.40
2024.23    0.021   121.88
2024.33    0.021   134.36
2024.43    0.022   146.30
2024.53    0.023   157.31
2024.63    0.024   167.20
2024.73    0.026   175.97
2024.83    0.028   183.72
2024.93    0.029   190.57
2025.03    0.031   196.67
2025.13    0.033   202.13
2025.23    0.034   207.08
2025.33    0.036   211.58
2025.43    0.037   215.72
2025.53    0.039   219.55
2025.63    0.040   223.11
2025.73    0.041   226.45
2025.83    0.043   229.60
2025.93    0.044   232.57
2026.03    0.045   235.40
2026.13    0.046   238.11
2026.23    0.047   240.69
2026.33    0.048   243.18
2026.43    0.048   245.58
2026.53    0.049   247.90
2026.63    0.050   250.15
2026.73    0.051   252.33
2026.83    0.051   254.46
2026.93    0.052   256.54
2027.03    0.053   258.56
2027.13    0.053   260.55
2027.23    0.054   262.50
2027.33    0.054   264.41
2027.43    0.054   266.30
2027.53    0.055   268.15
2027.63    0.055   269.98
2027.73    0.055   271.79
2027.83    0.056   273.57
2027.93    0.056   275.34
2028.03    0.056   277.09
2028.13    0.057   278.83
2028.23    0.057   280.55
2028.33    0.057   282.27
2028.43    0.057   283.97
2028.53    0.057   285.67
2028.63    0.057   287.36
2028.73    0.057   289.04
2028.83    0.057   290.73
2028.93    0.057   292.40
2029.03    0.057   294.08
2029.13    0.057   295.76
2029.23    0.057   297.44
2029.33    0.057   299.12
2029.43    0.057   300.81
2029.53    0.057   302.50
2029.63    0.057   304.20
2029.73    0.057   305.90
2029.83    0.057   307.62
2029.93    0.057   309.34
2030.03    0.056   311.08



 

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 17:46:29


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