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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:54:45

Orbital Elements for HR6791
WDS: HR6791 WDS ID/Discoverer
P: 5.522 Orbital period (years)
a: 0.01009 Semi-major axis (arcseconds)
i: 153.9 Inclination (degrees)
Ω: 341.4 Longitude of ascending node (degrees)
T: 1985.200 Epoch of periastron passage (year)
e: 0.378 Eccentricity
ω: 137.0 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 HR6791
Position: 180728.74+432743.3 Epoch-2000 right ascension and declination
WDS-ID: 18075+4328 WDS designation
Discoverer Code: HR6791 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 166208 HD catalog number
Hipparcos number: 88788 Hipparcos catalog number
V1: 5.01 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 1992 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HR6791



WDS 6th Orbit including measures of HR6791

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


Ephemeris of HR6791
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.010     88.3
-------------------------
2023.0     0.009    306.9
2024.0     0.006    180.4
2025.0     0.010     88.3
2026.0     0.012     42.0






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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