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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:52:07

Orbital Elements for A235

WDS:	A235	WDS ID/Discoverer
P:	38.090	Orbital period (years)
a:	0.273	Semi-major axis (arcseconds)
i:	67.3	Inclination (degrees)
Ω:	263.8	Longitude of ascending node (degrees)
T:	2082.100	Epoch of periastron passage (year)
e:	0.483	Eccentricity
ω:	355.0	Longitude of periastron (degrees)
Start-Year:	2006.0	Year
End-Year:	2044.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A235

Position:	175318.60+245929.0	Epoch-2000 right ascension and declination
WDS-ID:	17533+2459	WDS designation
Discoverer Code:	A235	Discover designation and components
ADS number:	10871	Aitken Double Star catalog
HD number:	163077	HD catalog number
Hipparcos number:	87565	Hipparcos catalog number
V1:	8.36	Magnitude of the primary
V2:	9.28	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A235

WDS 6th Orbit including measures of A235

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

Ephemeris of A235

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.404     81.9
-------------------------
2006.0     0.141    262.8
2007.0     0.135    275.1
2008.0     0.113    290.5
2009.0     0.090    314.0
2010.0     0.083    347.2
2011.0     0.099     17.4
2012.0     0.129     36.2
2013.0     0.164     47.5
2014.0     0.198     54.9
2015.0     0.232     60.0
2016.0     0.262     64.0
2017.0     0.290     67.1
2018.0     0.315     69.7
2019.0     0.337     71.9
2020.0     0.356     73.9
2021.0     0.371     75.7
2022.0     0.384     77.4
2023.0     0.394     78.9
2024.0     0.400     80.4
2025.0     0.404     81.9
2026.0     0.404     83.4
2027.0     0.401     84.8
2028.0     0.395     86.3
2029.0     0.386     87.9
2030.0     0.373     89.6
2031.0     0.358     91.3
2032.0     0.339     93.3
2033.0     0.316     95.5
2034.0     0.290     98.1
2035.0     0.260    101.3
2036.0     0.227    105.3
2037.0     0.191    110.7
2038.0     0.153    118.9
2039.0     0.115    132.4
2040.0     0.085    157.4
2041.0     0.077    196.2
2042.0     0.097    229.1
2043.0     0.125    248.5

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.