Double Star Calculator - Orbit

Orbital Elements for TOK400AB
WDS: TOK400AB WDS ID/Discoverer
P: 27.900 Orbital period (years)
a: 0.238 Semi-major axis (arcseconds)
i: 129.5 Inclination (degrees)
Ω: 98.3 Longitude of ascending node (degrees)
T: 2018.650 Epoch of periastron passage (year)
e: 0.656 Eccentricity
ω: 173.8 Longitude of periastron (degrees)
Start-Year: 2011.05 Year
End-Year: 2038.95 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for TOK400AB
Position: 122458.97-041332.3 Epoch-2000 right ascension and declination
WDS-ID: 12250-0414 WDS designation
Discoverer Code: TOK400AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 108081 HD catalog number
Hipparcos number: 60574 Hipparcos catalog number
V1: 8.1 Magnitude of the primary
V2: 11.9 Magnitude of the secondary
Equinox: Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2021f Reference

Double Star Orbit for TOK400AB



WDS 6th Orbit including measures of TOK400AB

-- 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 TOK400AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.312   118.59
--------------------------
2011.05    0.323    85.95
2011.15    0.320    85.62
2011.25    0.318    85.27
2011.35    0.315    84.92
2011.45    0.313    84.57
2011.55    0.310    84.20
2011.65    0.307    83.84
2011.75    0.304    83.46
2011.85    0.302    83.08
2011.95    0.299    82.69
2012.05    0.296    82.29
2012.15    0.293    81.89
2012.25    0.290    81.47
2012.35    0.287    81.05
2012.45    0.284    80.62
2012.55    0.280    80.18
2012.65    0.277    79.73
2012.75    0.274    79.26
2012.85    0.270    78.79
2012.95    0.267    78.30
2013.05    0.263    77.80
2013.15    0.260    77.29
2013.25    0.256    76.77
2013.35    0.253    76.22
2013.45    0.249    75.67
2013.55    0.245    75.09
2013.65    0.241    74.50
2013.75    0.238    73.89
2013.85    0.234    73.25
2013.95    0.230    72.60
2014.05    0.226    71.92
2014.15    0.221    71.22
2014.25    0.217    70.49
2014.35    0.213    69.73
2014.45    0.209    68.94
2014.55    0.204    68.12
2014.65    0.200    67.26
2014.75    0.195    66.36
2014.85    0.191    65.42
2014.95    0.186    64.44
2015.05    0.182    63.40
2015.15    0.177    62.31
2015.25    0.172    61.16
2015.35    0.168    59.94
2015.45    0.163    58.65
2015.55    0.158    57.29
2015.65    0.153    55.83
2015.75    0.148    54.28
2015.85    0.143    52.62
2015.95    0.138    50.85
2016.05    0.133    48.94
2016.15    0.128    46.88
2016.25    0.123    44.65
2016.35    0.118    42.24
2016.45    0.113    39.62
2016.55    0.109    36.77
2016.65    0.104    33.66
2016.75    0.099    30.25
2016.85    0.095    26.53
2016.95    0.091    22.47
2017.05    0.087    18.02
2017.15    0.083    13.19
2017.25    0.080     7.95
2017.35    0.078     2.33
2017.45    0.075   356.33
2017.55    0.074   350.03
2017.65    0.073   343.50
2017.75    0.072   336.83
2017.85    0.072   330.12
2017.95    0.073   323.47
2018.05    0.074   316.96
2018.15    0.075   310.65
2018.25    0.077   304.56
2018.35    0.078   298.70
2018.45    0.079   293.05
2018.55    0.081   287.58
2018.65    0.082   282.25
2018.75    0.082   277.02
2018.85    0.082   271.85
2018.95    0.082   266.68
2019.05    0.082   261.49
2019.15    0.082   256.26
2019.25    0.081   250.95
2019.35    0.080   245.57
2019.45    0.080   240.13
2019.55    0.080   234.63
2019.65    0.080   229.11
2019.75    0.080   223.62
2019.85    0.081   218.18
2019.95    0.082   212.86
2020.05    0.083   207.69
2020.15    0.085   202.71
2020.25    0.087   197.96
2020.35    0.089   193.45
2020.45    0.092   189.19
2020.55    0.095   185.19
2020.65    0.098   181.44
2020.75    0.102   177.95
2020.85    0.106   174.68
2020.95    0.109   171.64
2021.05    0.113   168.81
2021.15    0.117   166.17
2021.25    0.121   163.71
2021.35    0.126   161.41
2021.45    0.130   159.26
2021.55    0.134   157.25
2021.65    0.138   155.36
2021.75    0.143   153.59
2021.85    0.147   151.92
2021.95    0.152   150.34
2022.05    0.156   148.86
2022.15    0.160   147.45
2022.25    0.164   146.12
2022.35    0.169   144.86
2022.45    0.173   143.65
2022.55    0.177   142.51
2022.65    0.182   141.42
2022.75    0.186   140.38
2022.85    0.190   139.39
2022.95    0.194   138.43
2023.05    0.198   137.52
2023.15    0.202   136.64
2023.25    0.206   135.80
2023.35    0.210   134.99
2023.45    0.214   134.21
2023.55    0.218   133.45
2023.65    0.222   132.73
2023.75    0.225   132.03
2023.85    0.229   131.35
2023.95    0.233   130.69
2024.05    0.237   130.05
2024.15    0.240   129.43
2024.25    0.244   128.83
2024.35    0.247   128.25
2024.45    0.251   127.69
2024.55    0.254   127.14
2024.65    0.257   126.60
2024.75    0.261   126.08
2024.85    0.264   125.57
2024.95    0.267   125.07
2025.05    0.271   124.59
2025.15    0.274   124.11
2025.25    0.277   123.65
2025.35    0.280   123.20
2025.45    0.283   122.75
2025.55    0.286   122.32
2025.65    0.289   121.89
2025.75    0.292   121.48
2025.85    0.295   121.07
2025.95    0.297   120.67
2026.05    0.300   120.28
2026.15    0.303   119.89
2026.25    0.306   119.51
2026.35    0.308   119.14
2026.45    0.311   118.77
2026.55    0.313   118.41
2026.65    0.316   118.06
2026.75    0.318   117.71
2026.85    0.321   117.36
2026.95    0.323   117.02
2027.05    0.325   116.69
2027.15    0.328   116.36
2027.25    0.330   116.04
2027.35    0.332   115.72
2027.45    0.334   115.40
2027.55    0.336   115.09
2027.65    0.338   114.78
2027.75    0.341   114.47
2027.85    0.343   114.17
2027.95    0.344   113.88
2028.05    0.346   113.58
2028.15    0.348   113.29
2028.25    0.350   113.00
2028.35    0.352   112.72
2028.45    0.354   112.44
2028.55    0.355   112.16
2028.65    0.357   111.88
2028.75    0.359   111.61
2028.85    0.360   111.34
2028.95    0.362   111.07
2029.05    0.363   110.80
2029.15    0.365   110.54
2029.25    0.366   110.27
2029.35    0.368   110.01
2029.45    0.369   109.75
2029.55    0.370   109.50
2029.65    0.372   109.24
2029.75    0.373   108.99
2029.85    0.374   108.74
2029.95    0.375   108.49
2030.05    0.377   108.24
2030.15    0.378   107.99
2030.25    0.379   107.75
2030.35    0.380   107.50
2030.45    0.381   107.26
2030.55    0.382   107.02
2030.65    0.383   106.78
2030.75    0.383   106.54
2030.85    0.384   106.30
2030.95    0.385   106.06
2031.05    0.386   105.83
2031.15    0.387   105.59
2031.25    0.387   105.36
2031.35    0.388   105.12
2031.45    0.388   104.89
2031.55    0.389   104.66
2031.65    0.390   104.43
2031.75    0.390   104.20
2031.85    0.391   103.97
2031.95    0.391   103.74
2032.05    0.391   103.51
2032.15    0.392   103.28
2032.25    0.392   103.05
2032.35    0.392   102.82
2032.45    0.392   102.59
2032.55    0.393   102.37
2032.65    0.393   102.14
2032.75    0.393   101.91
2032.85    0.393   101.68
2032.95    0.393   101.46
2033.05    0.393   101.23
2033.15    0.393   101.00
2033.25    0.393   100.78
2033.35    0.393   100.55
2033.45    0.393   100.32
2033.55    0.393   100.09
2033.65    0.392    99.87
2033.75    0.392    99.64
2033.85    0.392    99.41
2033.95    0.391    99.18
2034.05    0.391    98.95
2034.15    0.391    98.72
2034.25    0.390    98.49
2034.35    0.390    98.26
2034.45    0.389    98.03
2034.55    0.389    97.80
2034.65    0.388    97.56
2034.75    0.387    97.33
2034.85    0.387    97.10
2034.95    0.386    96.86
2035.05    0.385    96.63
2035.15    0.384    96.39
2035.25    0.384    96.15
2035.35    0.383    95.91
2035.45    0.382    95.67
2035.55    0.381    95.43
2035.65    0.380    95.19
2035.75    0.379    94.94
2035.85    0.378    94.70
2035.95    0.377    94.45
2036.05    0.375    94.20
2036.15    0.374    93.95
2036.25    0.373    93.70
2036.35    0.372    93.45
2036.45    0.370    93.19
2036.55    0.369    92.94
2036.65    0.368    92.68
2036.75    0.366    92.42
2036.85    0.365    92.15
2036.95    0.363    91.89
2037.05    0.361    91.62
2037.15    0.360    91.35
2037.25    0.358    91.08
2037.35    0.356    90.80
2037.45    0.355    90.53
2037.55    0.353    90.25
2037.65    0.351    89.96
2037.75    0.349    89.68
2037.85    0.347    89.39
2037.95    0.345    89.09
2038.05    0.343    88.80
2038.15    0.341    88.50
2038.25    0.339    88.20
2038.35    0.337    87.89
2038.45    0.335    87.58
2038.55    0.332    87.26
2038.65    0.330    86.94
2038.75    0.328    86.62
2038.85    0.325    86.29
2038.95    0.323    85.95






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 16:46:05



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