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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:38:12

Orbital Elements for STT536AB
WDS: STT536AB WDS ID/Discoverer
P: 26.000 Orbital period (years)
a: 0.35 Semi-major axis (arcseconds)
i: 89.0 Inclination (degrees)
Ω: 166.0 Longitude of ascending node (degrees)
T: 1978.100 Epoch of periastron passage (year)
e: 0.5 Eccentricity
ω: 262.0 Longitude of periastron (degrees)
Start-Year: 2012.0 Year
End-Year: 2038.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT536AB
Position: 225835.08+092124.6 Epoch-2000 right ascension and declination
WDS-ID: 22586+0921 WDS designation
Discoverer Code: STT536AB Discover designation and components
ADS number: 16417 Aitken Double Star catalog
HD number: 217166 HD catalog number
Hipparcos number: 113445 Hipparcos catalog number
V1: 7.0 Magnitude of the primary
V2: 7.3 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT536AB



WDS 6th Orbit including measures of STT536AB

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


Ephemeris of STT536AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.265    345.0
-------------------------
2012.0     0.283    167.3
2013.0     0.251    167.7
2014.0     0.213    168.1
2015.0     0.171    168.8
2016.0     0.126    170.0
2017.0     0.078    172.6
2018.0     0.031    183.4
2019.0     0.022    321.9
2020.0     0.070    338.8
2021.0     0.117    341.9
2022.0     0.162    343.3
2023.0     0.203    344.1
2024.0     0.238    344.6
2025.0     0.265    345.0
2026.0     0.279    345.3
2027.0     0.274    345.7
2028.0     0.241    346.0
2029.0     0.165    346.7
2030.0     0.039    350.4
2031.0     0.103    164.4
2032.0     0.212    165.6
2033.0     0.280    166.0
2034.0     0.315    166.3
2035.0     0.328    166.5
2036.0     0.324    166.8
2037.0     0.308    167.0






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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