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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:13:02

Orbital Elements for CHR225

WDS:	CHR225	WDS ID/Discoverer
P:	11.000	Orbital period (years)
a:	0.044	Semi-major axis (arcseconds)
i:	66.2	Inclination (degrees)
Ω:	205.2	Longitude of ascending node (degrees)
T:	1985.840	Epoch of periastron passage (year)
e:	0.973	Eccentricity
ω:	53.6	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR225

Position:	051610.56-112109.2	Epoch-2000 right ascension and declination
WDS-ID:	05162-1121	WDS designation
Discoverer Code:	CHR225	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	34318	HD catalog number
Hipparcos number:	24560	Hipparcos catalog number
V1:	6.5	Magnitude of the primary
V2:	7.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for CHR225

WDS 6th Orbit including measures of CHR225

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

Ephemeris of CHR225

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.057     55.1
-------------------------
2020.0     0.037     44.6
2021.0     0.049     47.7
2022.0     0.056     49.8
2023.0     0.059     51.6
2024.0     0.059     53.3
2025.0     0.057     55.1
2026.0     0.052     57.0
2027.0     0.045     59.5
2028.0     0.035     63.1
2029.0     0.020     71.2

Disclaimer

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.