Double Star Calculator - Orbit

Orbital Elements for TOK385

WDS:	TOK385	WDS ID/Discoverer
P:	12.760	Orbital period (years)
a:	0.104	Semi-major axis (arcseconds)
i:	60.6	Inclination (degrees)
Ω:	100.2	Longitude of ascending node (degrees)
T:	2018.590	Epoch of periastron passage (year)
e:	0.95	Eccentricity
ω:	202.2	Longitude of periastron (degrees)
Start-Year:	2018.62	Year
End-Year:	2031.38	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK385
Position:	125053.95-574317.7	Epoch-2000 right ascension and declination
WDS-ID:	12509-5743	WDS designation
Discoverer Code:	TOK385	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	111570	HD catalog number
Hipparcos number:	62699	Hipparcos catalog number
V1:	8.8	Magnitude of the primary
V2:	12.4	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021f	Reference

Double Star Orbit for TOK385

WDS 6th Orbit including measures of TOK385

-- 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 TOK385

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.181   113.57
--------------------------
2018.62    0.004    25.97
2018.72    0.020    82.91
2018.82    0.032    90.00
2018.92    0.043    93.33
2019.02    0.052    95.42
2019.12    0.060    96.92
2019.22    0.067    98.07
2019.32    0.074    99.00
2019.42    0.081    99.79
2019.52    0.087   100.46
2019.62    0.092   101.04
2019.72    0.097   101.56
2019.82    0.102   102.03
2019.92    0.107   102.46
2020.02    0.112   102.85
2020.12    0.116   103.21
2020.22    0.120   103.55
2020.32    0.124   103.87
2020.42    0.128   104.16
2020.52    0.131   104.44
2020.62    0.135   104.71
2020.72    0.138   104.96
2020.82    0.141   105.20
2020.92    0.144   105.43
2021.02    0.147   105.65
2021.12    0.150   105.86
2021.22    0.152   106.07
2021.32    0.155   106.27
2021.42    0.157   106.46
2021.52    0.160   106.65
2021.62    0.162   106.83
2021.72    0.164   107.00
2021.82    0.166   107.18
2021.92    0.168   107.34
2022.02    0.170   107.51
2022.12    0.172   107.67
2022.22    0.173   107.83
2022.32    0.175   107.98
2022.42    0.176   108.13
2022.52    0.178   108.28
2022.62    0.179   108.43
2022.72    0.180   108.57
2022.82    0.182   108.71
2022.92    0.183   108.86
2023.02    0.184   108.99
2023.12    0.185   109.13
2023.22    0.186   109.27
2023.32    0.187   109.40
2023.42    0.188   109.54
2023.52    0.188   109.67
2023.62    0.189   109.80
2023.72    0.189   109.93
2023.82    0.190   110.06
2023.92    0.190   110.19
2024.02    0.191   110.32
2024.12    0.191   110.45
2024.22    0.191   110.57
2024.32    0.192   110.70
2024.42    0.192   110.83
2024.52    0.192   110.96
2024.62    0.192   111.08
2024.72    0.192   111.21
2024.82    0.192   111.34
2024.92    0.192   111.46
2025.02    0.191   111.59
2025.12    0.191   111.72
2025.22    0.191   111.85
2025.32    0.190   111.98
2025.42    0.190   112.11
2025.52    0.189   112.24
2025.62    0.189   112.37
2025.72    0.188   112.50
2025.82    0.187   112.63
2025.92    0.187   112.77
2026.02    0.186   112.90
2026.12    0.185   113.04
2026.22    0.184   113.18
2026.32    0.183   113.31
2026.42    0.182   113.46
2026.52    0.180   113.60
2026.62    0.179   113.74
2026.72    0.178   113.89
2026.82    0.177   114.04
2026.92    0.175   114.19
2027.02    0.174   114.34
2027.12    0.172   114.50
2027.22    0.170   114.66
2027.32    0.169   114.82
2027.42    0.167   114.99
2027.52    0.165   115.16
2027.62    0.163   115.33
2027.72    0.161   115.51
2027.82    0.159   115.69
2027.92    0.157   115.88
2028.02    0.155   116.07
2028.12    0.152   116.27
2028.22    0.150   116.47
2028.32    0.148   116.69
2028.42    0.145   116.90
2028.52    0.142   117.13
2028.62    0.140   117.37
2028.72    0.137   117.61
2028.82    0.134   117.87
2028.92    0.131   118.14
2029.02    0.128   118.42
2029.12    0.124   118.71
2029.22    0.121   119.02
2029.32    0.117   119.35
2029.42    0.114   119.70
2029.52    0.110   120.08
2029.62    0.106   120.48
2029.72    0.102   120.91
2029.82    0.098   121.38
2029.92    0.094   121.89
2030.02    0.089   122.45
2030.12    0.084   123.07
2030.22    0.079   123.77
2030.32    0.074   124.56
2030.42    0.069   125.47
2030.52    0.063   126.54
2030.62    0.057   127.83
2030.72    0.051   129.42
2030.82    0.044   131.48
2030.92    0.037   134.31
2031.02    0.029   138.56
2031.12    0.021   146.07
2031.22    0.012   164.62
2031.32    0.006   246.65

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 16:50:27