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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:11:47

Orbital Elements for COU2416

WDS:	COU2416	WDS ID/Discoverer
P:	56.880	Orbital period (years)
a:	0.223	Semi-major axis (arcseconds)
i:	37.8	Inclination (degrees)
Ω:	95.7	Longitude of ascending node (degrees)
T:	1995.770	Epoch of periastron passage (year)
e:	0.477	Eccentricity
ω:	248.7	Longitude of periastron (degrees)
Start-Year:	1997.0	Year
End-Year:	2053.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU2416

Position:	201504.77+374145.1	Epoch-2000 right ascension and declination
WDS-ID:	20151+3742	WDS designation
Discoverer Code:	COU2416	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	192744	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.0	Magnitude of the primary
V2:	8.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for COU2416

WDS 6th Orbit including measures of COU2416

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

Ephemeris of COU2416

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.269    161.8
-------------------------
1997.0     0.095      9.8
1998.0     0.105     32.0
1999.0     0.120     49.5
2000.0     0.138     62.7
2001.0     0.156     72.8
2002.0     0.173     80.9
2003.0     0.188     87.6
2004.0     0.202     93.3
2005.0     0.215     98.3
2006.0     0.226    102.8
2007.0     0.235    106.9
2008.0     0.244    110.7
2009.0     0.251    114.3
2010.0     0.257    117.7
2011.0     0.262    120.9
2012.0     0.267    124.1
2013.0     0.270    127.1
2014.0     0.273    130.1
2015.0     0.275    133.0
2016.0     0.276    135.8
2017.0     0.277    138.7
2018.0     0.278    141.5
2019.0     0.278    144.4
2020.0     0.277    147.2
2021.0     0.276    150.1
2022.0     0.275    152.9
2023.0     0.273    155.9
2024.0     0.271    158.8
2025.0     0.269    161.8
2026.0     0.266    164.9
2027.0     0.263    168.0
2028.0     0.260    171.2
2029.0     0.257    174.5
2030.0     0.253    177.8
2031.0     0.250    181.3
2032.0     0.246    184.9
2033.0     0.242    188.5
2034.0     0.238    192.3
2035.0     0.234    196.2
2036.0     0.230    200.3
2037.0     0.225    204.5
2038.0     0.221    208.9
2039.0     0.216    213.5
2040.0     0.212    218.3
2041.0     0.207    223.3
2042.0     0.201    228.5
2043.0     0.196    234.1
2044.0     0.189    240.0
2045.0     0.182    246.3
2046.0     0.174    253.2
2047.0     0.165    260.7
2048.0     0.155    269.3
2049.0     0.143    279.1
2050.0     0.129    291.0
2051.0     0.114    305.8
2052.0     0.101    324.7

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.