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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:19:30

Orbital Elements for HR5161

WDS:	HR5161	WDS ID/Discoverer
P:	0.410	Orbital period (years)
a:	0.0015	Semi-major axis (arcseconds)
i:	122.8	Inclination (degrees)
Ω:	312.3	Longitude of ascending node (degrees)
T:	1978.758	Epoch of periastron passage (year)
e:	0.17	Eccentricity
ω:	160.5	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HR5161

Position:	134243.43+345920.4	Epoch-2000 right ascension and declination
WDS-ID:	13427+3459	WDS designation
Discoverer Code:	HR5161	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	119458	HD catalog number
Hipparcos number:	66907	Hipparcos catalog number
V1:	5.96	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HR5161

WDS 6th Orbit including measures of HR5161

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

Ephemeris of HR5161

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.001    253.2
-------------------------

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.