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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:25:14

Orbital Elements for COU854

WDS:	COU854	WDS ID/Discoverer
P:	68.110	Orbital period (years)
a:	0.149	Semi-major axis (arcseconds)
i:	150.4	Inclination (degrees)
Ω:	221.1	Longitude of ascending node (degrees)
T:	1999.590	Epoch of periastron passage (year)
e:	0.123	Eccentricity
ω:	127.0	Longitude of periastron (degrees)
Start-Year:	1991.0	Year
End-Year:	2059.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU854

Position:	010125.08+353443.4	Epoch-2000 right ascension and declination
WDS-ID:	01014+3535	WDS designation
Discoverer Code:	COU854	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	5955	HD catalog number
Hipparcos number:	4783	Hipparcos catalog number
V1:	9.95	Magnitude of the primary
V2:	9.52	Magnitude of the secondary
Equinox:		Equinox
Date:	2007	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for COU854

WDS 6th Orbit including measures of COU854

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

Ephemeris of COU854

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.142    310.7
-------------------------
1991.0     0.122    153.3
1992.0     0.119    146.4
1993.0     0.118    139.1
1994.0     0.116    131.7
1995.0     0.116    124.2
1996.0     0.116    116.6
1997.0     0.116    109.1
1998.0     0.117    101.6
1999.0     0.119     94.4
2000.0     0.121     87.3
2001.0     0.123     80.5
2002.0     0.125     74.0
2003.0     0.128     67.6
2004.0     0.130     61.6
2005.0     0.132     55.7
2006.0     0.134     50.0
2007.0     0.136     44.4
2008.0     0.137     39.0
2009.0     0.138     33.6
2010.0     0.139     28.4
2011.0     0.140     23.1
2012.0     0.140     18.0
2013.0     0.140     12.8
2014.0     0.140      7.6
2015.0     0.140      2.5
2016.0     0.140    357.3
2017.0     0.140    352.1
2018.0     0.139    346.9
2019.0     0.139    341.7
2020.0     0.139    336.5
2021.0     0.139    331.3
2022.0     0.140    326.1
2023.0     0.140    320.9
2024.0     0.141    315.8
2025.0     0.142    310.7
2026.0     0.143    305.7
2027.0     0.144    300.7
2028.0     0.145    295.9
2029.0     0.146    291.1
2030.0     0.148    286.4
2031.0     0.150    281.8
2032.0     0.151    277.4
2033.0     0.153    273.0
2034.0     0.154    268.7
2035.0     0.156    264.5
2036.0     0.157    260.3
2037.0     0.158    256.3
2038.0     0.159    252.2
2039.0     0.160    248.3
2040.0     0.161    244.4
2041.0     0.161    240.5
2042.0     0.161    236.6
2043.0     0.161    232.7
2044.0     0.160    228.7
2045.0     0.160    224.8
2046.0     0.158    220.8
2047.0     0.157    216.7
2048.0     0.155    212.5
2049.0     0.153    208.3
2050.0     0.150    203.9
2051.0     0.147    199.3
2052.0     0.144    194.5
2053.0     0.141    189.6
2054.0     0.138    184.4
2055.0     0.134    178.9
2056.0     0.131    173.2
2057.0     0.128    167.1
2058.0     0.125    160.8

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.