Double Star Calculator - Orbit

Orbital Elements for TOK403

WDS:	TOK403	WDS ID/Discoverer
P:	17.030	Orbital period (years)
a:	0.1423	Semi-major axis (arcseconds)
i:	117.53	Inclination (degrees)
Ω:	252.65	Longitude of ascending node (degrees)
T:	2021.090	Epoch of periastron passage (year)
e:	0.4587	Eccentricity
ω:	90.3	Longitude of periastron (degrees)
Start-Year:	2016.485	Year
End-Year:	2033.515	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK403
Position:	133425.41-593044.4	Epoch-2000 right ascension and declination
WDS-ID:	13344-5931	WDS designation
Discoverer Code:	TOK403	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	117854	HD catalog number
Hipparcos number:	66230	Hipparcos catalog number
V1:	7.6	Magnitude of the primary
V2:	10.4	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 TOK403

WDS 6th Orbit including measures of TOK403

-- 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 TOK403

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.118    32.91
--------------------------
2016.48    0.127   282.37
2016.58    0.128   281.29
2016.68    0.128   280.21
2016.78    0.129   279.15
2016.88    0.130   278.10
2016.98    0.130   277.06
2017.08    0.131   276.02
2017.18    0.131   274.99
2017.28    0.131   273.97
2017.38    0.131   272.95
2017.48    0.132   271.93
2017.58    0.132   270.92
2017.68    0.132   269.90
2017.78    0.131   268.89
2017.88    0.131   267.87
2017.98    0.131   266.84
2018.08    0.130   265.81
2018.18    0.130   264.77
2018.28    0.129   263.71
2018.38    0.128   262.64
2018.48    0.127   261.56
2018.58    0.125   260.45
2018.68    0.124   259.32
2018.78    0.122   258.16
2018.88    0.120   256.96
2018.98    0.118   255.73
2019.08    0.116   254.45
2019.18    0.114   253.12
2019.28    0.111   251.72
2019.38    0.108   250.25
2019.48    0.105   248.69
2019.58    0.101   247.02
2019.68    0.097   245.23
2019.78    0.093   243.29
2019.88    0.089   241.17
2019.98    0.084   238.81
2020.08    0.079   236.18
2020.18    0.074   233.19
2020.28    0.069   229.75
2020.38    0.063   225.72
2020.48    0.058   220.93
2020.58    0.053   215.15
2020.68    0.047   208.07
2020.78    0.043   199.37
2020.88    0.039   188.77
2020.98    0.036   176.34
2021.08    0.036   162.69
2021.18    0.036   149.04
2021.28    0.039   136.59
2021.38    0.043   125.96
2021.48    0.047   117.23
2021.58    0.052   110.13
2021.68    0.058   104.33
2021.78    0.063    99.53
2021.88    0.069    95.49
2021.98    0.074    92.04
2022.08    0.079    89.04
2022.18    0.084    86.40
2022.28    0.089    84.04
2022.38    0.093    81.91
2022.48    0.097    79.96
2022.58    0.101    78.16
2022.68    0.104    76.49
2022.78    0.108    74.93
2022.88    0.111    73.45
2022.98    0.113    72.04
2023.08    0.116    70.70
2023.18    0.118    69.42
2023.28    0.120    68.17
2023.38    0.122    66.97
2023.48    0.123    65.81
2023.58    0.125    64.67
2023.68    0.126    63.55
2023.78    0.127    62.46
2023.88    0.128    61.38
2023.98    0.129    60.32
2024.08    0.130    59.26
2024.18    0.130    58.22
2024.28    0.131    57.19
2024.38    0.131    56.16
2024.48    0.131    55.13
2024.58    0.131    54.10
2024.68    0.131    53.08
2024.78    0.131    52.05
2024.88    0.130    51.02
2024.98    0.130    49.99
2025.08    0.130    48.94
2025.18    0.129    47.90
2025.28    0.129    46.84
2025.38    0.128    45.77
2025.48    0.127    44.69
2025.58    0.127    43.61
2025.68    0.126    42.50
2025.78    0.125    41.39
2025.88    0.124    40.26
2025.98    0.123    39.11
2026.08    0.122    37.94
2026.18    0.121    36.76
2026.28    0.120    35.56
2026.38    0.119    34.34
2026.48    0.118    33.10
2026.58    0.117    31.83
2026.68    0.116    30.55
2026.78    0.115    29.23
2026.88    0.114    27.90
2026.98    0.113    26.54
2027.08    0.112    25.15
2027.18    0.111    23.74
2027.28    0.110    22.30
2027.38    0.109    20.84
2027.48    0.108    19.34
2027.58    0.107    17.82
2027.68    0.106    16.27
2027.78    0.105    14.69
2027.88    0.104    13.09
2027.98    0.103    11.45
2028.08    0.102     9.79
2028.18    0.102     8.11
2028.28    0.101     6.39
2028.38    0.100     4.65
2028.48    0.100     2.89
2028.58    0.099     1.10
2028.68    0.098   359.30
2028.78    0.098   357.47
2028.88    0.097   355.62
2028.98    0.097   353.76
2029.08    0.097   351.89
2029.18    0.096   350.00
2029.28    0.096   348.10
2029.38    0.096   346.20
2029.48    0.096   344.29
2029.58    0.096   342.38
2029.68    0.096   340.47
2029.78    0.096   338.57
2029.88    0.096   336.67
2029.98    0.097   334.78
2030.08    0.097   332.89
2030.18    0.097   331.03
2030.28    0.098   329.17
2030.38    0.098   327.33
2030.48    0.099   325.52
2030.58    0.099   323.72
2030.68    0.100   321.95
2030.78    0.101   320.19
2030.88    0.101   318.47
2030.98    0.102   316.77
2031.08    0.103   315.09
2031.18    0.104   313.44
2031.28    0.105   311.82
2031.38    0.106   310.23
2031.48    0.107   308.67
2031.58    0.108   307.13
2031.68    0.109   305.63
2031.78    0.110   304.15
2031.88    0.111   302.70
2031.98    0.112   301.27
2032.08    0.113   299.87
2032.18    0.114   298.50
2032.28    0.115   297.16
2032.38    0.116   295.83
2032.48    0.117   294.54
2032.58    0.118   293.26
2032.68    0.119   292.01
2032.78    0.120   290.78
2032.88    0.121   289.57
2032.98    0.122   288.39
2033.08    0.123   287.21
2033.18    0.124   286.06
2033.28    0.125   284.93
2033.38    0.126   283.81
2033.48    0.127   282.70

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 16:57:49