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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:52:22

Orbital Elements for FIN381
WDS: FIN381 WDS ID/Discoverer
P: 9.008 Orbital period (years)
a: 0.0853 Semi-major axis (arcseconds)
i: 160.9 Inclination (degrees)
Ω: 173.6 Longitude of ascending node (degrees)
T: 2016.305 Epoch of periastron passage (year)
e: 0.327 Eccentricity
ω: 58.3 Longitude of periastron (degrees)
Start-Year: 2021.0 Year
End-Year: 2029.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN381
Position: 175414.21+110751.4 Epoch-2000 right ascension and declination
WDS-ID: 17542+1108 WDS designation
Discoverer Code: FIN381 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 163151 HD catalog number
Hipparcos number: 87655 Hipparcos catalog number
V1: 7.0 Magnitude of the primary
V2: 7.2 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 1 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for FIN381



WDS 6th Orbit including measures of FIN381

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


Ephemeris of FIN381
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.058    142.4
-------------------------
2021.0     0.108    292.6
2022.0     0.102    269.2
2023.0     0.090    241.2
2024.0     0.075    203.0
2025.0     0.058    142.4
2026.0     0.061     60.9
2027.0     0.083      9.1
2028.0     0.100    338.4






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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