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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:21:22

Orbital Elements for HO3AA,AB
WDS: HO3AA,AB WDS ID/Discoverer
P: 4.849 Orbital period (years)
a: 0.058 Semi-major axis (arcseconds)
i: 94.0 Inclination (degrees)
Ω: 100.7 Longitude of ascending node (degrees)
T: 1994.927 Epoch of periastron passage (year)
e: 0.138 Eccentricity
ω: 132.3 Longitude of periastron (degrees)
Start-Year: 2023.0 Year
End-Year: 2027.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HO3AA,AB
Position: 003329.97+400620.2 Epoch-2000 right ascension and declination
WDS-ID: 00335+4006 WDS designation
Discoverer Code: HO3AA,AB Discover designation and components
ADS number: 463 Aitken Double Star catalog
HD number: 2993 HD catalog number
Hipparcos number: 2643 Hipparcos catalog number
V1: 8.09 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HO3AA,AB



WDS 6th Orbit including measures of HO3AA,AB

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


Ephemeris of HO3AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.043    277.3
-------------------------
2023.0     0.043     97.3
2024.0     0.032    285.4
2025.0     0.043    277.3
2026.0     0.019    113.8






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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