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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:29:54

Orbital Elements for CHR169

WDS:	CHR169	WDS ID/Discoverer
P:	37.370	Orbital period (years)
a:	0.186	Semi-major axis (arcseconds)
i:	107.2	Inclination (degrees)
Ω:	174.5	Longitude of ascending node (degrees)
T:	2017.800	Epoch of periastron passage (year)
e:	0.487	Eccentricity
ω:	75.7	Longitude of periastron (degrees)
Start-Year:	2007.0	Year
End-Year:	2043.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR169

Position:	065318.84-190158.0	Epoch-2000 right ascension and declination
WDS-ID:	06533-1902	WDS designation
Discoverer Code:	CHR169	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	50644	HD catalog number
Hipparcos number:	33077	Hipparcos catalog number
V1:	5.7	Magnitude of the primary
V2:	8.8	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for CHR169

WDS 6th Orbit including measures of CHR169

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

Ephemeris of CHR169

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.185    348.1
-------------------------
2007.0     0.102    215.6
2008.0     0.112    208.1
2009.0     0.122    201.8
2010.0     0.131    196.5
2011.0     0.138    191.7
2012.0     0.143    187.4
2013.0     0.143    183.2
2014.0     0.138    178.9
2015.0     0.125    173.9
2016.0     0.101    167.2
2017.0     0.066    154.7
2018.0     0.031    109.7
2019.0     0.048     30.2
2020.0     0.088      9.8
2021.0     0.122      1.8
2022.0     0.148    357.1
2023.0     0.166    353.6
2024.0     0.178    350.7
2025.0     0.185    348.1
2026.0     0.189    345.6
2027.0     0.188    343.2
2028.0     0.186    340.8
2029.0     0.180    338.2
2030.0     0.173    335.4
2031.0     0.165    332.4
2032.0     0.155    329.1
2033.0     0.144    325.2
2034.0     0.133    320.7
2035.0     0.121    315.4
2036.0     0.110    308.9
2037.0     0.099    301.0
2038.0     0.090    291.4
2039.0     0.083    279.9
2040.0     0.080    266.8
2041.0     0.080    253.2
2042.0     0.083    240.1

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.