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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:10:09

Orbital Elements for COU1037

WDS:	COU1037	WDS ID/Discoverer
P:	39.000	Orbital period (years)
a:	0.157	Semi-major axis (arcseconds)
i:	99.0	Inclination (degrees)
Ω:	155.7	Longitude of ascending node (degrees)
T:	2001.450	Epoch of periastron passage (year)
e:	0.292	Eccentricity
ω:	245.8	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 COU1037

Position:	195553.36+250009.4	Epoch-2000 right ascension and declination
WDS-ID:	19559+2500	WDS designation
Discoverer Code:	COU1037	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.8	Magnitude of the primary
V2:	10.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2007	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for COU1037

WDS 6th Orbit including measures of COU1037

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

Ephemeris of COU1037

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.032     80.4
-------------------------
2006.0     0.097    164.0
2007.0     0.119    161.1
2008.0     0.138    159.0
2009.0     0.151    157.4
2010.0     0.161    156.0
2011.0     0.167    154.8
2012.0     0.170    153.6
2013.0     0.170    152.4
2014.0     0.166    151.2
2015.0     0.160    149.9
2016.0     0.152    148.5
2017.0     0.142    147.0
2018.0     0.131    145.1
2019.0     0.117    142.9
2020.0     0.103    140.1
2021.0     0.087    136.3
2022.0     0.071    130.8
2023.0     0.056    122.2
2024.0     0.041    107.2
2025.0     0.032     80.4
2026.0     0.032     45.3
2027.0     0.042     19.6
2028.0     0.057      5.2
2029.0     0.072    356.9
2030.0     0.087    351.5
2031.0     0.102    347.7
2032.0     0.114    344.8
2033.0     0.124    342.4
2034.0     0.130    340.3
2035.0     0.133    338.3
2036.0     0.130    336.3
2037.0     0.122    334.2
2038.0     0.108    331.7
2039.0     0.087    328.1
2040.0     0.061    321.7
2041.0     0.033    304.6
2042.0     0.019    229.2
2043.0     0.042    180.3

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.