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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:47:57

Orbital Elements for COU1922

WDS:	COU1922	WDS ID/Discoverer
P:	49.430	Orbital period (years)
a:	0.304	Semi-major axis (arcseconds)
i:	150.3	Inclination (degrees)
Ω:	159.2	Longitude of ascending node (degrees)
T:	2002.270	Epoch of periastron passage (year)
e:	0.649	Eccentricity
ω:	285.6	Longitude of periastron (degrees)
Start-Year:	2001.0	Year
End-Year:	2049.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1922

Position:	173633.92+482729.0	Epoch-2000 right ascension and declination
WDS-ID:	17366+4827	WDS designation
Discoverer Code:	COU1922	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	160291	HD catalog number
Hipparcos number:	86173	Hipparcos catalog number
V1:	7.72	Magnitude of the primary
V2:	9.64	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2006	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for COU1922

WDS 6th Orbit including measures of COU1922

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

Ephemeris of COU1922

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.436     56.0
-------------------------
2001.0     0.114    288.7
2002.0     0.094    245.1
2003.0     0.107    198.1
2004.0     0.137    167.5
2005.0     0.169    148.4
2006.0     0.197    135.1
2007.0     0.223    125.0
2008.0     0.246    116.9
2009.0     0.267    110.1
2010.0     0.286    104.3
2011.0     0.304     99.2
2012.0     0.320     94.6
2013.0     0.335     90.5
2014.0     0.349     86.6
2015.0     0.362     83.1
2016.0     0.373     79.8
2017.0     0.384     76.7
2018.0     0.394     73.8
2019.0     0.402     71.0
2020.0     0.410     68.3
2021.0     0.417     65.7
2022.0     0.423     63.2
2023.0     0.428     60.7
2024.0     0.433     58.3
2025.0     0.436     56.0
2026.0     0.439     53.6
2027.0     0.441     51.3
2028.0     0.441     49.1
2029.0     0.441     46.8
2030.0     0.440     44.5
2031.0     0.438     42.2
2032.0     0.436     39.9
2033.0     0.432     37.5
2034.0     0.427     35.1
2035.0     0.421     32.6
2036.0     0.414     30.1
2037.0     0.406     27.4
2038.0     0.396     24.6
2039.0     0.385     21.7
2040.0     0.373     18.6
2041.0     0.359     15.3
2042.0     0.344     11.7
2043.0     0.326      7.8
2044.0     0.307      3.3
2045.0     0.285    358.2
2046.0     0.260    352.2
2047.0     0.233    344.9
2048.0     0.201    335.5

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.