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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:22:28

Orbital Elements for STF1821B
WDS: STF1821B WDS ID/Discoverer
P: 4.904 Orbital period (years)
a: 0.0215 Semi-major axis (arcseconds)
i: 77.0 Inclination (degrees)
Ω: 7.0 Longitude of ascending node (degrees)
T: 2006.050 Epoch of periastron passage (year)
e: 0.53 Eccentricity
ω: 49.0 Longitude of periastron (degrees)
Start-Year: 2023.0 Year
End-Year: 2027.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1821B
Position: 141329.00+514723.8 Epoch-2000 right ascension and declination
WDS-ID: 14135+5147 WDS designation
Discoverer Code: STF1821B Discover designation and components
ADS number: 9173 Aitken Double Star catalog
HD number: 124674 HD catalog number
Hipparcos number: 69481 Hipparcos catalog number
V1: 6.62 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 2012 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1821B



WDS 6th Orbit including measures of STF1821B
Ephemeris of STF1821B
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.010    343.3
-------------------------
2023.0     0.024    199.0
2024.0     0.012    220.2
2025.0     0.010    343.3
2026.0     0.008    169.0






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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