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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:17:25

Orbital Elements for HDS1879AA,AB
WDS: HDS1879AA,AB WDS ID/Discoverer
P: 15.520 Orbital period (years)
a: 0.186 Semi-major axis (arcseconds)
i: 86.0 Inclination (degrees)
Ω: 214.1 Longitude of ascending node (degrees)
T: 2017.230 Epoch of periastron passage (year)
e: 0.775 Eccentricity
ω: 173.9 Longitude of periastron (degrees)
Start-Year: 2018.0 Year
End-Year: 2032.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1879AA,AB
Position: 132323.16+575422.2 Epoch-2000 right ascension and declination
WDS-ID: 13234+5754 WDS designation
Discoverer Code: HDS1879AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 238224 HD catalog number
Hipparcos number: 65327 Hipparcos catalog number
V1: 9.86 Magnitude of the primary
V2: 10.14 Magnitude of the secondary
Equinox: Equinox
Date: 2020 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HDS1879AA,AB



WDS 6th Orbit including measures of HDS1879AA,AB

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


Ephemeris of HDS1879AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.328    213.7
-------------------------
2018.0     0.025    198.0
2019.0     0.116    209.6
2020.0     0.185    211.2
2021.0     0.237    212.0
2022.0     0.276    212.6
2023.0     0.303    213.0
2024.0     0.321    213.3
2025.0     0.328    213.7
2026.0     0.326    214.0
2027.0     0.314    214.3
2028.0     0.292    214.7
2029.0     0.257    215.2
2030.0     0.208    215.9
2031.0     0.139    217.1






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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