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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:15:36

Orbital Elements for STF1728AB
WDS: STF1728AB WDS ID/Discoverer
P: 25.852 Orbital period (years)
a: 0.67144 Semi-major axis (arcseconds)
i: 90.0501 Inclination (degrees)
Ω: 12.2272 Longitude of ascending node (degrees)
T: 2015.094 Epoch of periastron passage (year)
e: 0.5106 Eccentricity
ω: 280.563 Longitude of periastron (degrees)
Start-Year: 2013.0 Year
End-Year: 2037.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1728AB
Position: 130959.28+173146.0 Epoch-2000 right ascension and declination
WDS-ID: 13100+1732 WDS designation
Discoverer Code: STF1728AB Discover designation and components
ADS number: 8804 Aitken Double Star catalog
HD number: 114378 HD catalog number
Hipparcos number: 64241 Hipparcos catalog number
V1: 4.85 Magnitude of the primary
V2: 5.53 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 1 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1728AB



WDS 6th Orbit including measures of STF1728AB

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


Ephemeris of STF1728AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.097     11.7
-------------------------
2013.0     0.437    192.2
2014.0     0.238    192.2
2015.0     0.034     12.7
2016.0     0.288     12.3
2017.0     0.443     12.2
2018.0     0.509     12.2
2019.0     0.515     12.2
2020.0     0.484     12.2
2021.0     0.430     12.2
2022.0     0.359     12.1
2023.0     0.278     12.1
2024.0     0.189     12.0
2025.0     0.097     11.7
2026.0     0.003    355.2
2027.0     0.091    192.8
2028.0     0.184    192.5
2029.0     0.274    192.4
2030.0     0.358    192.4
2031.0     0.437    192.3
2032.0     0.507    192.3
2033.0     0.565    192.3
2034.0     0.611    192.3
2035.0     0.638    192.3
2036.0     0.642    192.3






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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