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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:29:35

Orbital Elements for HDS3109
WDS: HDS3109 WDS ID/Discoverer
P: 16.790 Orbital period (years)
a: 0.1782 Semi-major axis (arcseconds)
i: 86.9 Inclination (degrees)
Ω: 307.5 Longitude of ascending node (degrees)
T: 2004.150 Epoch of periastron passage (year)
e: 0.246 Eccentricity
ω: 255.3 Longitude of periastron (degrees)
Start-Year: 2017.0 Year
End-Year: 2033.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3109
Position: 215023.73-581817.4 Epoch-2000 right ascension and declination
WDS-ID: 21504-5818 WDS designation
Discoverer Code: HDS3109 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 207377 HD catalog number
Hipparcos number: 107806 Hipparcos catalog number
V1: 8.56 Magnitude of the primary
V2: 9.07 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS3109



WDS 6th Orbit including measures of HDS3109

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


Ephemeris of HDS3109
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.184    308.0
-------------------------
2017.0     0.148    125.2
2018.0     0.162    126.6
2019.0     0.149    128.1
2020.0     0.104    130.3
2021.0     0.030    141.2
2022.0     0.055    300.2
2023.0     0.124    305.2
2024.0     0.167    306.9
2025.0     0.184    308.0
2026.0     0.178    309.1
2027.0     0.155    310.4
2028.0     0.119    312.3
2029.0     0.074    316.3
2030.0     0.025    335.6
2031.0     0.032    106.4
2032.0     0.081    120.1






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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