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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:31:53

Orbital Elements for CHR232AA,AB
WDS: CHR232AA,AB WDS ID/Discoverer
P: 16.468 Orbital period (years)
a: 0.0933 Semi-major axis (arcseconds)
i: 123.9 Inclination (degrees)
Ω: 10.4 Longitude of ascending node (degrees)
T: 2011.536 Epoch of periastron passage (year)
e: 0.419 Eccentricity
ω: 321.6 Longitude of periastron (degrees)
Start-Year: 2017.0 Year
End-Year: 2033.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR232AA,AB
Position: 153309.52-242925.6 Epoch-2000 right ascension and declination
WDS-ID: 15332-2429 WDS designation
Discoverer Code: CHR232AA,AB Discover designation and components
ADS number: 9689 Aitken Double Star catalog
HD number: 138488 HD catalog number
Hipparcos number: 76143 Hipparcos catalog number
V1: 7.2 Magnitude of the primary
V2: 8.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for CHR232AA,AB



WDS 6th Orbit including measures of CHR232AA,AB

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


Ephemeris of CHR232AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.086    174.5
-------------------------
2017.0     0.078    243.6
2018.0     0.093    230.3
2019.0     0.106    220.4
2020.0     0.115    212.6
2021.0     0.121    205.7
2022.0     0.122    199.2
2023.0     0.117    192.6
2024.0     0.106    184.9
2025.0     0.086    174.5
2026.0     0.059    155.7
2027.0     0.034    104.6
2028.0     0.046     34.4
2029.0     0.060      1.8
2030.0     0.058    335.0
2031.0     0.055    304.6
2032.0     0.060    274.5






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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