Double Star Calculator - Orbit

Orbital Elements for TOK428BA,BB

WDS:	TOK428BA,BB	WDS ID/Discoverer
P:	18.200	Orbital period (years)
a:	0.1591	Semi-major axis (arcseconds)
i:	84.2	Inclination (degrees)
Ω:	112.6	Longitude of ascending node (degrees)
T:	2004.940	Epoch of periastron passage (year)
e:	0.488	Eccentricity
ω:	138.1	Longitude of periastron (degrees)
Start-Year:	2015.9	Year
End-Year:	2034.1	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK428BA,BB
Position:	030436.98-511906.6	Epoch-2000 right ascension and declination
WDS-ID:	03046-5119	WDS designation
Discoverer Code:	TOK428BA,BB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	14313	Hipparcos catalog number
V1:	9.0	Magnitude of the primary
V2:	9.5	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:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2023b	Reference

Double Star Orbit for TOK428BA,BB

WDS 6th Orbit including measures of TOK428BA,BB

-- 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 TOK428BA,BB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.031   325.23
--------------------------
2015.90    0.205   109.64
2016.00    0.205   109.75
2016.10    0.206   109.85
2016.20    0.207   109.95
2016.30    0.207   110.06
2016.40    0.208   110.16
2016.50    0.208   110.26
2016.60    0.208   110.36
2016.70    0.208   110.47
2016.80    0.208   110.57
2016.90    0.208   110.67
2017.00    0.208   110.77
2017.10    0.208   110.87
2017.20    0.208   110.98
2017.30    0.207   111.08
2017.40    0.207   111.18
2017.50    0.206   111.29
2017.60    0.205   111.39
2017.70    0.205   111.49
2017.80    0.204   111.60
2017.90    0.203   111.71
2018.00    0.201   111.82
2018.10    0.200   111.93
2018.20    0.199   112.04
2018.30    0.197   112.15
2018.40    0.196   112.26
2018.50    0.194   112.38
2018.60    0.192   112.50
2018.70    0.190   112.62
2018.80    0.188   112.74
2018.90    0.186   112.87
2019.00    0.183   113.00
2019.10    0.181   113.13
2019.20    0.178   113.27
2019.30    0.175   113.41
2019.40    0.172   113.56
2019.50    0.169   113.71
2019.60    0.166   113.87
2019.70    0.162   114.03
2019.80    0.159   114.20
2019.90    0.155   114.38
2020.00    0.151   114.57
2020.10    0.147   114.77
2020.20    0.142   114.99
2020.30    0.138   115.21
2020.40    0.133   115.45
2020.50    0.128   115.71
2020.60    0.123   115.99
2020.70    0.118   116.30
2020.80    0.112   116.63
2020.90    0.106   117.00
2021.00    0.101   117.41
2021.10    0.094   117.88
2021.20    0.088   118.41
2021.30    0.081   119.02
2021.40    0.075   119.75
2021.50    0.068   120.62
2021.60    0.061   121.70
2021.70    0.053   123.06
2021.80    0.046   124.88
2021.90    0.038   127.41
2022.00    0.030   131.22
2022.10    0.023   137.60
2022.20    0.016   150.04
2022.30    0.010   178.83
2022.40    0.010   227.47
2022.50    0.015   257.47
2022.60    0.022   270.41
2022.70    0.030   276.99
2022.80    0.037   280.93
2022.90    0.045   283.56
2023.00    0.052   285.46
2023.10    0.058   286.92
2023.20    0.064   288.09
2023.30    0.070   289.07
2023.40    0.075   289.91
2023.50    0.079   290.65
2023.60    0.083   291.32
2023.70    0.086   291.94
2023.80    0.089   292.51
2023.90    0.090   293.06
2024.00    0.092   293.60
2024.10    0.092   294.12
2024.20    0.093   294.63
2024.30    0.092   295.15
2024.40    0.092   295.67
2024.50    0.091   296.20
2024.60    0.089   296.74
2024.70    0.088   297.30
2024.80    0.086   297.89
2024.90    0.083   298.51
2025.00    0.081   299.16
2025.10    0.078   299.86
2025.20    0.075   300.61
2025.30    0.072   301.42
2025.40    0.069   302.30
2025.50    0.066   303.27
2025.60    0.063   304.34
2025.70    0.059   305.53
2025.80    0.056   306.88
2025.90    0.052   308.41
2026.00    0.048   310.17
2026.10    0.045   312.21
2026.20    0.041   314.62
2026.30    0.037   317.49
2026.40    0.034   320.97
2026.50    0.031   325.23
2026.60    0.027   330.53
2026.70    0.024   337.18
2026.80    0.022   345.54
2026.90    0.020   355.85
2027.00    0.019     8.01
2027.10    0.018    21.27
2027.20    0.019    34.35
2027.30    0.020    46.05
2027.40    0.022    55.81
2027.50    0.025    63.66
2027.60    0.028    69.89
2027.70    0.032    74.87
2027.80    0.035    78.88
2027.90    0.039    82.15
2028.00    0.042    84.86
2028.10    0.046    87.13
2028.20    0.050    89.06
2028.30    0.054    90.72
2028.40    0.057    92.16
2028.50    0.061    93.42
2028.60    0.065    94.53
2028.70    0.069    95.52
2028.80    0.072    96.41
2028.90    0.076    97.21
2029.00    0.080    97.94
2029.10    0.084    98.60
2029.20    0.087    99.20
2029.30    0.091    99.76
2029.40    0.094   100.28
2029.50    0.098   100.75
2029.60    0.101   101.20
2029.70    0.105   101.61
2029.80    0.108   102.00
2029.90    0.112   102.37
2030.00    0.115   102.71
2030.10    0.118   103.03
2030.20    0.122   103.34
2030.30    0.125   103.63
2030.40    0.128   103.91
2030.50    0.131   104.17
2030.60    0.134   104.42
2030.70    0.137   104.66
2030.80    0.140   104.89
2030.90    0.143   105.11
2031.00    0.146   105.32
2031.10    0.149   105.52
2031.20    0.152   105.72
2031.30    0.154   105.91
2031.40    0.157   106.09
2031.50    0.160   106.27
2031.60    0.162   106.44
2031.70    0.165   106.60
2031.80    0.167   106.76
2031.90    0.169   106.92
2032.00    0.172   107.07
2032.10    0.174   107.22
2032.20    0.176   107.36
2032.30    0.178   107.50
2032.40    0.180   107.64
2032.50    0.182   107.78
2032.60    0.184   107.91
2032.70    0.186   108.04
2032.80    0.188   108.16
2032.90    0.190   108.29
2033.00    0.191   108.41
2033.10    0.193   108.53
2033.20    0.194   108.65
2033.30    0.196   108.76
2033.40    0.197   108.88
2033.50    0.198   108.99
2033.60    0.200   109.10
2033.70    0.201   109.21
2033.80    0.202   109.32
2033.90    0.203   109.43
2034.00    0.204   109.53

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 15:07:20