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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:32:49

Orbital Elements for BD-065964

WDS:	BD-065964	WDS ID/Discoverer
P:	2.790	Orbital period (years)
a:	0.0053	Semi-major axis (arcseconds)
i:	85.1	Inclination (degrees)
Ω:	128.2	Longitude of ascending node (degrees)
T:	1991.769	Epoch of periastron passage (year)
e:	0.058	Eccentricity
ω:	172.3	Longitude of periastron (degrees)
Start-Year:	2024.0	Year
End-Year:	2026.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BD-065964

Position:	221814.94-055030.0	Epoch-2000 right ascension and declination
WDS-ID:	22182-0551	WDS designation
Discoverer Code:	BD-065964	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	211594	HD catalog number
Hipparcos number:	110108	Hipparcos catalog number
V1:	8.05	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1993	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for BD-065964

WDS 6th Orbit including measures of BD-065964

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

Ephemeris of BD-065964

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.004    303.6
-------------------------
2024.0     0.006    129.0
2025.0     0.004    303.6

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.