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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:31:42

Orbital Elements for COU537

WDS:	COU537	WDS ID/Discoverer
P:	47.430	Orbital period (years)
a:	0.185	Semi-major axis (arcseconds)
i:	35.1	Inclination (degrees)
Ω:	69.3	Longitude of ascending node (degrees)
T:	1993.700	Epoch of periastron passage (year)
e:	0.595	Eccentricity
ω:	89.1	Longitude of periastron (degrees)
Start-Year:	2002.0	Year
End-Year:	2048.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU537

Position:	220740.20+262135.8	Epoch-2000 right ascension and declination
WDS-ID:	22077+2622	WDS designation
Discoverer Code:	COU537	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.6	Magnitude of the primary
V2:	8.8	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for COU537

WDS 6th Orbit including measures of COU537

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

Ephemeris of COU537

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.229      1.3
-------------------------
2002.0     0.184    284.7
2003.0     0.192    289.5
2004.0     0.200    293.9
2005.0     0.207    298.1
2006.0     0.213    301.9
2007.0     0.218    305.6
2008.0     0.223    309.1
2009.0     0.227    312.5
2010.0     0.230    315.8
2011.0     0.233    319.0
2012.0     0.236    322.1
2013.0     0.238    325.1
2014.0     0.239    328.1
2015.0     0.240    331.1
2016.0     0.241    334.1
2017.0     0.241    337.0
2018.0     0.241    339.9
2019.0     0.241    342.9
2020.0     0.240    345.8
2021.0     0.238    348.8
2022.0     0.237    351.8
2023.0     0.234    354.9
2024.0     0.232    358.0
2025.0     0.229      1.3
2026.0     0.225      4.6
2027.0     0.221      8.0
2028.0     0.216     11.6
2029.0     0.210     15.4
2030.0     0.204     19.3
2031.0     0.197     23.6
2032.0     0.190     28.1
2033.0     0.181     33.1
2034.0     0.171     38.6
2035.0     0.160     44.9
2036.0     0.146     52.2
2037.0     0.131     61.0
2038.0     0.114     72.4
2039.0     0.094     88.3
2040.0     0.074    113.1
2041.0     0.062    152.3
2042.0     0.069    194.8
2043.0     0.088    223.3
2044.0     0.109    241.1
2045.0     0.127    253.4
2046.0     0.143    262.8
2047.0     0.157    270.4

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.