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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:33:13

Orbital Elements for CHR26

WDS:	CHR26	WDS ID/Discoverer
P:	8.571	Orbital period (years)
a:	0.0518	Semi-major axis (arcseconds)
i:	50.1	Inclination (degrees)
Ω:	341.4	Longitude of ascending node (degrees)
T:	2000.494	Epoch of periastron passage (year)
e:	0.412	Eccentricity
ω:	246.7	Longitude of periastron (degrees)
Start-Year:	2021.0	Year
End-Year:	2029.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR26

Position:	072656.33+201527.3	Epoch-2000 right ascension and declination
WDS-ID:	07269+2015	WDS designation
Discoverer Code:	CHR26	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	58579	HD catalog number
Hipparcos number:	36156	Hipparcos catalog number
V1:	5.9	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	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 CHR26

WDS 6th Orbit including measures of CHR26

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

Ephemeris of CHR26

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.042    140.0
-------------------------
2021.0     0.058     17.4
2022.0     0.051     39.5
2023.0     0.045     68.4
2024.0     0.043    103.6
2025.0     0.042    140.0
2026.0     0.026    193.3
2027.0     0.034    313.7
2028.0     0.055    347.0

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.