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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:41:22

Orbital Elements for CHR130

WDS:	CHR130	WDS ID/Discoverer
P:	35.450	Orbital period (years)
a:	0.1402	Semi-major axis (arcseconds)
i:	90.4	Inclination (degrees)
Ω:	339.8	Longitude of ascending node (degrees)
T:	1987.860	Epoch of periastron passage (year)
e:	0.169	Eccentricity
ω:	226.3	Longitude of periastron (degrees)
Start-Year:	2008.0	Year
End-Year:	2042.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR130

Position:	084020.17+192056.5	Epoch-2000 right ascension and declination
WDS-ID:	08403+1921	WDS designation
Discoverer Code:	CHR130	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	73712	HD catalog number
Hipparcos number:	42542	Hipparcos catalog number
V1:	6.78	Magnitude of the primary
V2:	8.5	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 CHR130

WDS 6th Orbit including measures of CHR130

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

Ephemeris of CHR130

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.039    158.7
-------------------------
2008.0     0.071    339.0
2009.0     0.051    338.6
2010.0     0.029    337.7
2011.0     0.007    331.4
2012.0     0.015    163.9
2013.0     0.036    161.4
2014.0     0.057    160.7
2015.0     0.076    160.4
2016.0     0.093    160.2
2017.0     0.107    160.1
2018.0     0.117    160.0
2019.0     0.122    159.9
2020.0     0.122    159.8
2021.0     0.116    159.7
2022.0     0.104    159.6
2023.0     0.087    159.4
2024.0     0.065    159.2
2025.0     0.039    158.7
2026.0     0.012    155.7
2027.0     0.017    342.7
2028.0     0.044    340.9
2029.0     0.070    340.4
2030.0     0.093    340.2
2031.0     0.112    340.1
2032.0     0.129    340.0
2033.0     0.141    339.9
2034.0     0.149    339.9
2035.0     0.154    339.8
2036.0     0.155    339.7
2037.0     0.153    339.7
2038.0     0.148    339.6
2039.0     0.139    339.6
2040.0     0.128    339.5
2041.0     0.114    339.4

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.