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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:12:38

Orbital Elements for STF654A
WDS: STF654A WDS ID/Discoverer
P: 2.824 Orbital period (years)
a: 0.007 Semi-major axis (arcseconds)
i: 122.8 Inclination (degrees)
Ω: 242.6 Longitude of ascending node (degrees)
T: 1930.561 Epoch of periastron passage (year)
e: 0.1 Eccentricity
ω: 17.9 Longitude of periastron (degrees)
Start-Year: 2024.0 Year
End-Year: 2026.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF654A
Position: 051317.48+025140.5 Epoch-2000 right ascension and declination
WDS-ID: 05133+0252 WDS designation
Discoverer Code: STF654A Discover designation and components
ADS number: 3797 Aitken Double Star catalog
HD number: 33856 HD catalog number
Hipparcos number: 24331 Hipparcos catalog number
V1: 4.48 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF654A



WDS 6th Orbit including measures of STF654A

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


Ephemeris of STF654A
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.008     62.1
-------------------------
2024.0     0.005    203.1
2025.0     0.008     62.1






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.


www.stella-vega.de