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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:30:35

Orbital Elements for COU1241

WDS:	COU1241	WDS ID/Discoverer
P:	26.300	Orbital period (years)
a:	0.181	Semi-major axis (arcseconds)
i:	120.2	Inclination (degrees)
Ω:	89.7	Longitude of ascending node (degrees)
T:	1993.100	Epoch of periastron passage (year)
e:	0.563	Eccentricity
ω:	263.9	Longitude of periastron (degrees)
Start-Year:	2012.0	Year
End-Year:	2038.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1241

Position:	065947.73+314053.7	Epoch-2000 right ascension and declination
WDS-ID:	06598+3141	WDS designation
Discoverer Code:	COU1241	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	267337	HD catalog number
Hipparcos number:	33678	Hipparcos catalog number
V1:	9.8	Magnitude of the primary
V2:	9.8	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for COU1241

WDS 6th Orbit including measures of COU1241

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

Ephemeris of COU1241

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.173     65.7
-------------------------
2012.0     0.148    319.0
2013.0     0.150    310.6
2014.0     0.152    302.5
2015.0     0.151    294.3
2016.0     0.144    285.8
2017.0     0.129    276.0
2018.0     0.100    262.0
2019.0     0.054    227.9
2020.0     0.054    133.2
2021.0     0.103    100.4
2022.0     0.137     87.6
2023.0     0.158     79.0
2024.0     0.169     72.1
2025.0     0.173     65.7
2026.0     0.174     59.6
2027.0     0.172     53.4
2028.0     0.168     46.9
2029.0     0.163     40.1
2030.0     0.157     32.8
2031.0     0.152     24.9
2032.0     0.147     16.5
2033.0     0.143      7.6
2034.0     0.141    358.4
2035.0     0.141    349.0
2036.0     0.141    339.6
2037.0     0.144    330.4

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.