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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:06:25

Orbital Elements for STF1553B
WDS: STF1553B WDS ID/Discoverer
P: 4.627 Orbital period (years)
a: 0.023100000000000002 Semi-major axis (arcseconds)
i: 86.5 Inclination (degrees)
Ω: 203.1 Longitude of ascending node (degrees)
T: 1993.048 Epoch of periastron passage (year)
e: 0.648 Eccentricity
ω: 55.4 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 STF1553B
Position: 113635.89+560801.5 Epoch-2000 right ascension and declination
WDS-ID: 11366+5608 WDS designation
Discoverer Code: STF1553B Discover designation and components
ADS number: 8236 Aitken Double Star catalog
HD number: 100831B HD catalog number
Hipparcos number: 56622 Hipparcos catalog number
V1: 8.17 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STF1553B



WDS 6th Orbit including measures of STF1553B
Ephemeris of STF1553B
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.010    197.9
-------------------------
2023.0     0.023     27.7
2024.0     0.008     36.8
2025.0     0.010    197.9
2026.0     0.021     23.0






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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