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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:13:07

Orbital Elements for HR7798
WDS: HR7798 WDS ID/Discoverer
P: 3.078 Orbital period (years)
a: 0.0043 Semi-major axis (arcseconds)
i: 23.9 Inclination (degrees)
Ω: 243.5 Longitude of ascending node (degrees)
T: 1993.803 Epoch of periastron passage (year)
e: 0.759 Eccentricity
ω: 108.1 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 HR7798
Position: 202205.35+454741.6 Epoch-2000 right ascension and declination
WDS-ID: 20221+4548 WDS designation
Discoverer Code: HR7798 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 194152 HD catalog number
Hipparcos number: 100437 Hipparcos catalog number
V1: 5.59 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 HR7798



WDS 6th Orbit including measures of HR7798

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


Ephemeris of HR7798
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.004    131.0
-------------------------
2024.0     0.005    203.8
2025.0     0.004    131.0






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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