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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:29:25

Orbital Elements for COU768

WDS:	COU768	WDS ID/Discoverer
P:	25.950	Orbital period (years)
a:	0.118	Semi-major axis (arcseconds)
i:	144.2	Inclination (degrees)
Ω:	48.8	Longitude of ascending node (degrees)
T:	2008.380	Epoch of periastron passage (year)
e:	0.467	Eccentricity
ω:	45.6	Longitude of periastron (degrees)
Start-Year:	2013.0	Year
End-Year:	2037.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU768

Position:	065016.01+240925.5	Epoch-2000 right ascension and declination
WDS-ID:	06503+2409	WDS designation
Discoverer Code:	COU768	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	49622	HD catalog number
Hipparcos number:	32800	Hipparcos catalog number
V1:	8.88	Magnitude of the primary
V2:	9.67	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2000	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for COU768

WDS 6th Orbit including measures of COU768

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

Ephemeris of COU768

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.137    166.2
-------------------------
2013.0     0.117    241.7
2014.0     0.131    232.8
2015.0     0.142    225.3
2016.0     0.150    218.9
2017.0     0.156    212.9
2018.0     0.159    207.4
2019.0     0.161    202.0
2020.0     0.160    196.6
2021.0     0.158    191.1
2022.0     0.155    185.5
2023.0     0.150    179.6
2024.0     0.144    173.2
2025.0     0.137    166.2
2026.0     0.130    158.4
2027.0     0.121    149.6
2028.0     0.113    139.5
2029.0     0.104    127.7
2030.0     0.096    113.9
2031.0     0.088     97.6
2032.0     0.081     78.2
2033.0     0.072     54.3
2034.0     0.060     22.4
2035.0     0.054    338.5
2036.0     0.063    296.2

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.