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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:43:12

Orbital Elements for STF2130B
WDS: STF2130B WDS ID/Discoverer
P: 3.200 Orbital period (years)
a: 0.026 Semi-major axis (arcseconds)
i: 83.5 Inclination (degrees)
Ω: 134.1 Longitude of ascending node (degrees)
T: 1915.400 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 272.6 Longitude of periastron (degrees)
Start-Year: 2024.0 Year
End-Year: 2026.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2130B
Position: 170520.24+542814.1 Epoch-2000 right ascension and declination
WDS-ID: 17053+5428 WDS designation
Discoverer Code: STF2130B Discover designation and components
ADS number: 10345 Aitken Double Star catalog
HD number: 154905 HD catalog number
Hipparcos number: 83608 Hipparcos catalog number
V1: 5.00 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 1900 Equinox
Date: 1942 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF2130B



WDS 6th Orbit including measures of STF2130B

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


Ephemeris of STF2130B
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.021    140.4
-------------------------
2024.0     0.014    319.5
2025.0     0.021    140.4






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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