Double Star Calculator - Orbit

Orbital Elements for TOK434BA,BB

WDS:	TOK434BA,BB	WDS ID/Discoverer
P:	11.000	Orbital period (years)
a:	0.254	Semi-major axis (arcseconds)
i:	87.3	Inclination (degrees)
Ω:	235.0	Longitude of ascending node (degrees)
T:	2022.210	Epoch of periastron passage (year)
e:	0.25	Eccentricity
ω:	270.0	Longitude of periastron (degrees)
Start-Year:	2019.5	Year
End-Year:	2030.5	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK434BA,BB
Position:	222556.40-750052.8	Epoch-2000 right ascension and declination
WDS-ID:	22259-7501	WDS designation
Discoverer Code:	TOK434BA,BB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.1	Magnitude of the primary
V2:	11.	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	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:	Tok2019c	Reference

Double Star Orbit for TOK434BA,BB

WDS 6th Orbit including measures of TOK434BA,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 TOK434BA,BB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.131   240.75
--------------------------
2019.50    0.240    53.66
2019.60    0.243    53.82
2019.70    0.244    53.99
2019.80    0.246    54.15
2019.90    0.246    54.31
2020.00    0.246    54.47
2020.10    0.244    54.63
2020.20    0.242    54.79
2020.30    0.239    54.96
2020.40    0.235    55.13
2020.50    0.230    55.30
2020.60    0.224    55.49
2020.70    0.217    55.69
2020.80    0.209    55.90
2020.90    0.200    56.13
2021.00    0.190    56.38
2021.10    0.179    56.66
2021.20    0.167    56.99
2021.30    0.154    57.36
2021.40    0.140    57.80
2021.50    0.125    58.35
2021.60    0.109    59.06
2021.70    0.093    60.01
2021.80    0.076    61.38
2021.90    0.058    63.57
2022.00    0.040    67.71
2022.10    0.022    78.47
2022.20    0.009   133.21
2022.30    0.019   207.02
2022.40    0.037   220.97
2022.50    0.054   225.82
2022.60    0.072   228.27
2022.70    0.089   229.76
2022.80    0.106   230.78
2022.90    0.122   231.52
2023.00    0.137   232.09
2023.10    0.151   232.56
2023.20    0.165   232.94
2023.30    0.177   233.28
2023.40    0.188   233.56
2023.50    0.198   233.82
2023.60    0.208   234.06
2023.70    0.216   234.27
2023.80    0.223   234.47
2023.90    0.229   234.66
2024.00    0.234   234.84
2024.10    0.238   235.01
2024.20    0.242   235.18
2024.30    0.244   235.34
2024.40    0.245   235.50
2024.50    0.246   235.66
2024.60    0.246   235.82
2024.70    0.245   235.98
2024.80    0.243   236.14
2024.90    0.241   236.31
2025.00    0.237   236.48
2025.10    0.234   236.65
2025.20    0.229   236.83
2025.30    0.224   237.02
2025.40    0.219   237.21
2025.50    0.213   237.42
2025.60    0.207   237.64
2025.70    0.200   237.87
2025.80    0.192   238.12
2025.90    0.185   238.39
2026.00    0.176   238.69
2026.10    0.168   239.01
2026.20    0.159   239.37
2026.30    0.150   239.78
2026.40    0.141   240.23
2026.50    0.131   240.75
2026.60    0.121   241.36
2026.70    0.111   242.08
2026.80    0.101   242.94
2026.90    0.090   243.99
2027.00    0.080   245.32
2027.10    0.069   247.06
2027.20    0.059   249.42
2027.30    0.048   252.83
2027.40    0.038   258.12
2027.50    0.028   267.30
2027.60    0.019   285.41
2027.70    0.015   320.70
2027.80    0.018   359.08
2027.90    0.026    20.05
2028.00    0.036    30.45
2028.10    0.046    36.31
2028.20    0.057    40.00
2028.30    0.067    42.53
2028.40    0.078    44.37
2028.50    0.088    45.77
2028.60    0.099    46.87
2028.70    0.109    47.76
2028.80    0.119    48.51
2028.90    0.129    49.13
2029.00    0.139    49.67
2029.10    0.148    50.14
2029.20    0.157    50.55
2029.30    0.166    50.92
2029.40    0.175    51.25
2029.50    0.183    51.55
2029.60    0.191    51.83
2029.70    0.198    52.08
2029.80    0.205    52.32
2029.90    0.212    52.54
2030.00    0.218    52.75
2030.10    0.223    52.95
2030.20    0.228    53.13
2030.30    0.233    53.32
2030.40    0.237    53.49

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 18:39:44