Double Star Calculator - Orbit

Orbital Elements for TOK431

WDS:	TOK431	WDS ID/Discoverer
P:	11.288	Orbital period (years)
a:	0.1044	Semi-major axis (arcseconds)
i:	159.0	Inclination (degrees)
Ω:	55.3	Longitude of ascending node (degrees)
T:	2021.712	Epoch of periastron passage (year)
e:	0.6151	Eccentricity
ω:	80.0	Longitude of periastron (degrees)
Start-Year:	2019.356	Year
End-Year:	2030.644	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK431
Position:	054950.21-722445.0	Epoch-2000 right ascension and declination
WDS-ID:	05498-7225	WDS designation
Discoverer Code:	TOK431	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	40107	HD catalog number
Hipparcos number:	27531	Hipparcos catalog number
V1:	9.88	Magnitude of the primary
V2:	11.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2024	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:	Tok2024e	Reference

Double Star Orbit for TOK431

WDS 6th Orbit including measures of TOK431

-- 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 TOK431

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.156   164.85
--------------------------
2019.36    0.119   114.92
2019.46    0.116   113.06
2019.56    0.113   111.11
2019.66    0.111   109.07
2019.76    0.108   106.93
2019.86    0.105   104.66
2019.96    0.102   102.27
2020.06    0.099    99.73
2020.16    0.095    97.01
2020.26    0.092    94.10
2020.36    0.089    90.96
2020.46    0.085    87.55
2020.56    0.081    83.83
2020.66    0.077    79.74
2020.76    0.073    75.20
2020.86    0.069    70.12
2020.96    0.065    64.37
2021.06    0.060    57.79
2021.16    0.056    50.16
2021.26    0.051    41.19
2021.36    0.047    30.56
2021.46    0.043    17.90
2021.56    0.040     2.98
2021.66    0.038   346.04
2021.76    0.038   328.03
2021.86    0.039   310.45
2021.96    0.042   294.61
2022.06    0.045   281.07
2022.16    0.050   269.76
2022.26    0.054   260.33
2022.36    0.059   252.41
2022.46    0.064   245.67
2022.56    0.069   239.84
2022.66    0.073   234.75
2022.76    0.078   230.24
2022.86    0.082   226.21
2022.96    0.086   222.56
2023.06    0.090   219.24
2023.16    0.093   216.19
2023.26    0.097   213.37
2023.36    0.100   210.74
2023.46    0.104   208.29
2023.56    0.107   205.99
2023.66    0.110   203.81
2023.76    0.113   201.76
2023.86    0.116   199.80
2023.96    0.118   197.93
2024.06    0.121   196.15
2024.16    0.123   194.43
2024.26    0.126   192.79
2024.36    0.128   191.20
2024.46    0.130   189.66
2024.56    0.132   188.18
2024.66    0.134   186.74
2024.76    0.136   185.34
2024.86    0.138   183.97
2024.96    0.140   182.64
2025.06    0.141   181.35
2025.16    0.143   180.08
2025.26    0.144   178.83
2025.36    0.146   177.62
2025.46    0.147   176.42
2025.56    0.148   175.24
2025.66    0.149   174.08
2025.76    0.150   172.94
2025.86    0.151   171.82
2025.96    0.152   170.71
2026.06    0.153   169.61
2026.16    0.154   168.52
2026.26    0.154   167.44
2026.36    0.155   166.38
2026.46    0.156   165.32
2026.56    0.156   164.26
2026.66    0.157   163.22
2026.76    0.157   162.18
2026.86    0.157   161.14
2026.96    0.158   160.11
2027.06    0.158   159.08
2027.16    0.158   158.05
2027.26    0.158   157.02
2027.36    0.158   156.00
2027.46    0.158   154.97
2027.56    0.158   153.94
2027.66    0.157   152.90
2027.76    0.157   151.87
2027.86    0.157   150.83
2027.96    0.156   149.78
2028.06    0.156   148.73
2028.16    0.155   147.67
2028.26    0.155   146.60
2028.36    0.154   145.53
2028.46    0.153   144.44
2028.56    0.152   143.34
2028.66    0.151   142.23
2028.76    0.150   141.11
2028.86    0.149   139.97
2028.96    0.148   138.82
2029.06    0.147   137.64
2029.16    0.146   136.45
2029.26    0.145   135.24
2029.36    0.143   134.00
2029.46    0.142   132.74
2029.56    0.140   131.46
2029.66    0.139   130.14
2029.76    0.137   128.79
2029.86    0.135   127.41
2029.96    0.133   125.99
2030.06    0.131   124.54
2030.16    0.129   123.03
2030.26    0.127   121.48
2030.36    0.125   119.88
2030.46    0.123   118.22
2030.56    0.121   116.49

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 15:41:17