Double Star Calculator - Orbit

Orbital Elements for TOK383AA,AB

WDS:	TOK383AA,AB	WDS ID/Discoverer
P:	12.670	Orbital period (years)
a:	0.0429	Semi-major axis (arcseconds)
i:	134.9	Inclination (degrees)
Ω:	177.0	Longitude of ascending node (degrees)
T:	2020.090	Epoch of periastron passage (year)
e:	0.38	Eccentricity
ω:	328.0	Longitude of periastron (degrees)
Start-Year:	2018.665	Year
End-Year:	2031.335	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK383AA,AB
Position:	111914.66-194943.8	Epoch-2000 right ascension and declination
WDS-ID:	11192-1950	WDS designation
Discoverer Code:	TOK383AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.9	Magnitude of the primary
V2:	9.1	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:	Msn2023	Reference

Double Star Orbit for TOK383AA,AB

WDS 6th Orbit including measures of TOK383AA,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 TOK383AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.055    19.95
--------------------------
2018.66    0.026   297.47
2018.76    0.025   292.23
2018.86    0.024   286.49
2018.96    0.023   280.24
2019.06    0.022   273.50
2019.16    0.022   266.31
2019.26    0.021   258.79
2019.36    0.021   251.06
2019.46    0.021   243.28
2019.56    0.021   235.61
2019.66    0.022   228.18
2019.76    0.022   221.09
2019.86    0.023   214.40
2019.96    0.024   208.11
2020.06    0.024   202.22
2020.16    0.025   196.68
2020.26    0.026   191.47
2020.36    0.027   186.53
2020.46    0.027   181.82
2020.56    0.028   177.30
2020.66    0.028   172.93
2020.76    0.028   168.67
2020.86    0.029   164.51
2020.96    0.029   160.41
2021.06    0.029   156.36
2021.16    0.029   152.34
2021.26    0.029   148.34
2021.36    0.029   144.34
2021.46    0.029   140.36
2021.56    0.029   136.37
2021.66    0.029   132.40
2021.76    0.029   128.43
2021.86    0.029   124.47
2021.96    0.030   120.53
2022.06    0.030   116.63
2022.16    0.030   112.76
2022.26    0.030   108.95
2022.36    0.030   105.20
2022.46    0.031   101.52
2022.56    0.031    97.92
2022.66    0.031    94.41
2022.76    0.032    90.99
2022.86    0.032    87.67
2022.96    0.033    84.46
2023.06    0.033    81.35
2023.16    0.034    78.35
2023.26    0.035    75.46
2023.36    0.035    72.67
2023.46    0.036    69.99
2023.56    0.037    67.41
2023.66    0.037    64.93
2023.76    0.038    62.54
2023.86    0.039    60.24
2023.96    0.040    58.03
2024.06    0.040    55.91
2024.16    0.041    53.86
2024.26    0.042    51.88
2024.36    0.043    49.97
2024.46    0.043    48.13
2024.56    0.044    46.36
2024.66    0.045    44.64
2024.76    0.046    42.97
2024.86    0.046    41.36
2024.96    0.047    39.79
2025.06    0.048    38.27
2025.16    0.048    36.80
2025.26    0.049    35.36
2025.36    0.050    33.96
2025.46    0.050    32.59
2025.56    0.051    31.26
2025.66    0.051    29.95
2025.76    0.052    28.67
2025.86    0.052    27.42
2025.96    0.053    26.19
2026.06    0.053    24.99
2026.16    0.054    23.80
2026.26    0.054    22.63
2026.36    0.055    21.48
2026.46    0.055    20.35
2026.56    0.055    19.23
2026.66    0.056    18.12
2026.76    0.056    17.02
2026.86    0.056    15.93
2026.96    0.056    14.85
2027.06    0.056    13.77
2027.16    0.057    12.71
2027.26    0.057    11.64
2027.36    0.057    10.58
2027.46    0.057     9.52
2027.56    0.057     8.46
2027.66    0.057     7.39
2027.76    0.057     6.33
2027.86    0.056     5.26
2027.96    0.056     4.18
2028.06    0.056     3.10
2028.16    0.056     2.01
2028.26    0.055     0.91
2028.36    0.055   359.79
2028.46    0.055   358.66
2028.56    0.054   357.52
2028.66    0.054   356.35
2028.76    0.053   355.16
2028.86    0.053   353.95
2028.96    0.052   352.72
2029.06    0.052   351.45
2029.16    0.051   350.15
2029.26    0.050   348.81
2029.36    0.049   347.43
2029.46    0.049   346.01
2029.56    0.048   344.53
2029.66    0.047   343.00
2029.76    0.046   341.40
2029.86    0.045   339.74
2029.96    0.044   337.99
2030.06    0.043   336.16
2030.16    0.041   334.22
2030.26    0.040   332.17
2030.36    0.039   329.99
2030.46    0.038   327.67
2030.56    0.036   325.19
2030.66    0.035   322.52
2030.76    0.034   319.63
2030.86    0.032   316.51
2030.96    0.031   313.11
2031.06    0.030   309.39
2031.16    0.028   305.32
2031.26    0.027   300.86

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 16:36:54