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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:47:34

Orbital Elements for COP1

WDS:	COP1	WDS ID/Discoverer
P:	34.120	Orbital period (years)
a:	0.81	Semi-major axis (arcseconds)
i:	58.4	Inclination (degrees)
Ω:	288.2	Longitude of ascending node (degrees)
T:	2004.070	Epoch of periastron passage (year)
e:	0.439	Eccentricity
ω:	47.7	Longitude of periastron (degrees)
Start-Year:	2008.0	Year
End-Year:	2042.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COP1

Position:	093041.97-402800.2	Epoch-2000 right ascension and declination
WDS-ID:	09307-4028	WDS designation
Discoverer Code:	COP1	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	82434	HD catalog number
Hipparcos number:	46651	Hipparcos catalog number
V1:	3.91	Magnitude of the primary
V2:	5.12	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for COP1

WDS 6th Orbit including measures of COP1

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

Ephemeris of COP1

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.706    157.7
-------------------------
2008.0     0.537     82.8
2009.0     0.662     91.9
2010.0     0.767     98.3
2011.0     0.852    103.3
2012.0     0.918    107.5
2013.0     0.966    111.1
2014.0     1.000    114.5
2015.0     1.019    117.7
2016.0     1.026    120.8
2017.0     1.021    123.9
2018.0     1.006    127.1
2019.0     0.982    130.4
2020.0     0.950    133.9
2021.0     0.911    137.6
2022.0     0.865    141.8
2023.0     0.815    146.4
2024.0     0.761    151.6
2025.0     0.706    157.7
2026.0     0.650    164.8
2027.0     0.598    173.2
2028.0     0.552    183.1
2029.0     0.515    194.6
2030.0     0.493    207.5
2031.0     0.486    221.2
2032.0     0.494    234.8
2033.0     0.512    247.7
2034.0     0.532    259.6
2035.0     0.541    270.9
2036.0     0.526    282.2
2037.0     0.471    295.2
2038.0     0.374    313.4
2039.0     0.275    345.9
2040.0     0.274     33.2
2041.0     0.384     65.2

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.