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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:32:08

Orbital Elements for CHR230AA,AB

WDS:	CHR230AA,AB	WDS ID/Discoverer
P:	43.400	Orbital period (years)
a:	0.104	Semi-major axis (arcseconds)
i:	75.1	Inclination (degrees)
Ω:	130.7	Longitude of ascending node (degrees)
T:	2010.290	Epoch of periastron passage (year)
e:	0.831	Eccentricity
ω:	134.1	Longitude of periastron (degrees)
Start-Year:	2004.0	Year
End-Year:	2046.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR230AA,AB

Position:	221138.00-342754.2	Epoch-2000 right ascension and declination
WDS-ID:	22116-3428	WDS designation
Discoverer Code:	CHR230AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	210525	HD catalog number
Hipparcos number:	109561	Hipparcos catalog number
V1:	7.0	Magnitude of the primary
V2:	8.5	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:	n	Flags

Double Star Orbit for CHR230AA,AB

WDS 6th Orbit including measures of CHR230AA,AB

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

Ephemeris of CHR230AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.106    109.8
-------------------------
2004.0     0.113    126.2
2005.0     0.104    127.3
2006.0     0.092    128.7
2007.0     0.078    130.4
2008.0     0.061    133.1
2009.0     0.037    138.7
2010.0     0.005    225.4
2011.0     0.024    320.8
2012.0     0.021    345.3
2013.0     0.019     18.2
2014.0     0.022     50.1
2015.0     0.029     70.5
2016.0     0.037     82.4
2017.0     0.046     89.8
2018.0     0.055     94.9
2019.0     0.063     98.6
2020.0     0.071    101.5
2021.0     0.079    103.8
2022.0     0.086    105.6
2023.0     0.093    107.2
2024.0     0.100    108.6
2025.0     0.106    109.8
2026.0     0.112    110.9
2027.0     0.117    111.9
2028.0     0.122    112.8
2029.0     0.126    113.6
2030.0     0.130    114.4
2031.0     0.134    115.1
2032.0     0.137    115.8
2033.0     0.140    116.5
2034.0     0.142    117.2
2035.0     0.144    117.8
2036.0     0.145    118.4
2037.0     0.146    119.0
2038.0     0.146    119.6
2039.0     0.146    120.2
2040.0     0.145    120.8
2041.0     0.143    121.4
2042.0     0.141    122.1
2043.0     0.138    122.7
2044.0     0.134    123.4
2045.0     0.129    124.1

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.