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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:04:25

Orbital Elements for CHR133AB
WDS: CHR133AB WDS ID/Discoverer
P: 5.127 Orbital period (years)
a: 0.0913 Semi-major axis (arcseconds)
i: 64.8 Inclination (degrees)
Ω: 130.0 Longitude of ascending node (degrees)
T: 1992.499 Epoch of periastron passage (year)
e: 0.126 Eccentricity
ω: 43.9 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 CHR133AB
Position: 111907.94+381108.6 Epoch-2000 right ascension and declination
WDS-ID: 11191+3811 WDS designation
Discoverer Code: CHR133AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 98353 HD catalog number
Hipparcos number: 55266 Hipparcos catalog number
V1: 4.78 Magnitude of the primary
V2: 5.3 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for CHR133AB



WDS 6th Orbit including measures of CHR133AB

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


Ephemeris of CHR133AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.098    308.8
-------------------------
2023.0     0.077    138.8
2024.0     0.043    257.5
2025.0     0.098    308.8
2026.0     0.070    339.9






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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