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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:20:15

Orbital Elements for STT535AB
WDS: STT535AB WDS ID/Discoverer
P: 5.706 Orbital period (years)
a: 0.231965 Semi-major axis (arcseconds)
i: 99.4083 Inclination (degrees)
Ω: 23.362 Longitude of ascending node (degrees)
T: 2004.293 Epoch of periastron passage (year)
e: 0.436851 Eccentricity
ω: 187.735 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 STT535AB
Position: 211428.81+100025.1 Epoch-2000 right ascension and declination
WDS-ID: 21145+1000 WDS designation
Discoverer Code: STT535AB Discover designation and components
ADS number: 14773 Aitken Double Star catalog
HD number: 202275 HD catalog number
Hipparcos number: 104858 Hipparcos catalog number
V1: 5.19 Magnitude of the primary
V2: 5.52 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 Date of last observation
Orbit grade: 1 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT535AB



WDS 6th Orbit including measures of STT535AB

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


Ephemeris of STT535AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.279     18.3
-------------------------
2023.0     0.246     28.9
2024.0     0.331     23.3
2025.0     0.279     18.3
2026.0     0.101      2.2






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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