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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:58:12

Orbital Elements for CHR73
WDS: CHR73 WDS ID/Discoverer
P: 5.628 Orbital period (years)
a: 0.056 Semi-major axis (arcseconds)
i: 118.3 Inclination (degrees)
Ω: 225.1 Longitude of ascending node (degrees)
T: 2012.269 Epoch of periastron passage (year)
e: 0.218 Eccentricity
ω: 72.8 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 CHR73
Position: 183220.66-143839.2 Epoch-2000 right ascension and declination
WDS-ID: 18323-1439 WDS designation
Discoverer Code: CHR73 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 170902 HD catalog number
Hipparcos number: 90884 Hipparcos catalog number
V1: 6.6 Magnitude of the primary
V2: 8.3 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for CHR73



WDS 6th Orbit including measures of CHR73

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


Ephemeris of CHR73
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.059     39.9
-------------------------
2023.0     0.044    214.4
2024.0     0.030     85.2
2025.0     0.059     39.9
2026.0     0.045      7.4






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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