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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:36:37

Orbital Elements for WSI93
WDS: WSI93 WDS ID/Discoverer
P: 25.450 Orbital period (years)
a: 0.2391 Semi-major axis (arcseconds)
i: 34.2 Inclination (degrees)
Ω: 1.6 Longitude of ascending node (degrees)
T: 2017.370 Epoch of periastron passage (year)
e: 0.634 Eccentricity
ω: 88.8 Longitude of periastron (degrees)
Start-Year: 2013.0 Year
End-Year: 2037.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI93
Position: 224721.69+174846.0 Epoch-2000 right ascension and declination
WDS-ID: 22474+1749 WDS designation
Discoverer Code: WSI93 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 215775 HD catalog number
Hipparcos number: 112506 Hipparcos catalog number
V1: 8.1 Magnitude of the primary
V2: 11.2 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for WSI93



WDS 6th Orbit including measures of WSI93

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


Ephemeris of WSI93
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.296    243.4
-------------------------
2013.0     0.237    320.7
2014.0     0.210    331.0
2015.0     0.176    344.8
2016.0     0.132      6.8
2017.0     0.081     56.2
2018.0     0.092    142.8
2019.0     0.145    181.5
2020.0     0.187    200.4
2021.0     0.220    212.9
2022.0     0.245    222.4
2023.0     0.266    230.4
2024.0     0.282    237.2
2025.0     0.296    243.4
2026.0     0.306    249.1
2027.0     0.314    254.5
2028.0     0.319    259.7
2029.0     0.322    264.7
2030.0     0.323    269.7
2031.0     0.322    274.6
2032.0     0.319    279.7
2033.0     0.314    284.8
2034.0     0.306    290.2
2035.0     0.296    295.9
2036.0     0.283    302.1






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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