Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:00:42

Orbital Elements for TOK438
WDS: TOK438 WDS ID/Discoverer
P: 6.193 Orbital period (years)
a: 0.047 Semi-major axis (arcseconds)
i: 100.6 Inclination (degrees)
Ω: 195.1 Longitude of ascending node (degrees)
T: 2015.757 Epoch of periastron passage (year)
e: 0.95 Eccentricity
ω: 186.3 Longitude of periastron (degrees)
Start-Year: 2022.0 Year
End-Year: 2028.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK438
Position: 105302.26+045743.1 Epoch-2000 right ascension and declination
WDS-ID: 10530+0458 WDS designation
Discoverer Code: TOK438 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 53212 Hipparcos catalog number
V1: 8.2 Magnitude of the primary
V2: 9.0 Magnitude of the secondary
Equinox: Equinox
Date: 2021 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for TOK438



WDS 6th Orbit including measures of TOK438

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of TOK438
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.091    194.0
-------------------------
2022.0     0.005    209.4
2023.0     0.063    196.2
2024.0     0.085    194.9
2025.0     0.091    194.0
2026.0     0.085    193.0
2027.0     0.063    191.7






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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