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

Double Star Calculator - Orbit

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

Orbital Elements for HJ4831A
WDS: HJ4831A WDS ID/Discoverer
P: 2.516 Orbital period (years)
a: 0.011 Semi-major axis (arcseconds)
i: 61.0 Inclination (degrees)
Ω: 55.0 Longitude of ascending node (degrees)
T: 1993.419 Epoch of periastron passage (year)
e: 0.09 Eccentricity
ω: 113.0 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 HJ4831A
Position: 160716.17-364519.9 Epoch-2000 right ascension and declination
WDS-ID: 16073-3645 WDS designation
Discoverer Code: HJ4831A Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 144415 HD catalog number
Hipparcos number: 78970 Hipparcos catalog number
V1: 5.71 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 1991 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HJ4831A



WDS 6th Orbit including measures of HJ4831A

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


Ephemeris of HJ4831A
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.009     23.6
-------------------------
2024.0     0.010    233.7
2025.0     0.009     23.6






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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