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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:42:40

Orbital Elements for CHR59

WDS:	CHR59	WDS ID/Discoverer
P:	26.472	Orbital period (years)
a:	0.19129	Semi-major axis (arcseconds)
i:	66.89	Inclination (degrees)
Ω:	67.94	Longitude of ascending node (degrees)
T:	1988.560	Epoch of periastron passage (year)
e:	0.0814	Eccentricity
ω:	277.2	Longitude of periastron (degrees)
Start-Year:	2012.0	Year
End-Year:	2038.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR59

Position:	170029.38+063501.7	Epoch-2000 right ascension and declination
WDS-ID:	17005+0635	WDS designation
Discoverer Code:	CHR59	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	153653	HD catalog number
Hipparcos number:	83223	Hipparcos catalog number
V1:	6.6	Magnitude of the primary
V2:	9.9	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for CHR59

WDS 6th Orbit including measures of CHR59

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

Ephemeris of CHR59

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.125    100.9
-------------------------
2012.0     0.129    272.5
2013.0     0.099    287.8
2014.0     0.074    315.2
2015.0     0.071    354.6
2016.0     0.093     24.8
2017.0     0.123     41.7
2018.0     0.152     52.1
2019.0     0.173     59.4
2020.0     0.186     65.5
2021.0     0.189     71.0
2022.0     0.183     76.6
2023.0     0.169     82.8
2024.0     0.149     90.5
2025.0     0.125    100.9
2026.0     0.102    116.3
2027.0     0.085    139.3
2028.0     0.082    168.3
2029.0     0.096    193.5
2030.0     0.119    210.7
2031.0     0.143    222.2
2032.0     0.165    230.4
2033.0     0.182    236.9
2034.0     0.191    242.5
2035.0     0.192    247.7
2036.0     0.184    253.2
2037.0     0.167    259.4

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.