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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:11:23

Orbital Elements for BEU7

WDS:	BEU7	WDS ID/Discoverer
P:	15.340	Orbital period (years)
a:	0.324	Semi-major axis (arcseconds)
i:	136.5	Inclination (degrees)
Ω:	93.4	Longitude of ascending node (degrees)
T:	2022.160	Epoch of periastron passage (year)
e:	0.093	Eccentricity
ω:	254.1	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU7

Position:	050321.88-231500.8	Epoch-2000 right ascension and declination
WDS-ID:	05033-2315	WDS designation
Discoverer Code:	BEU7	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	23516	Hipparcos catalog number
V1:	8.28	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for BEU7

WDS 6th Orbit including measures of BEU7

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

Ephemeris of BEU7

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.296    115.3
-------------------------
2018.0     0.305    299.4
2019.0     0.316    281.1
2020.0     0.302    262.7
2021.0     0.265    240.8
2022.0     0.225    210.6
2023.0     0.217    172.6
2024.0     0.251    139.2
2025.0     0.296    115.3
2026.0     0.326     97.2
2027.0     0.331     80.9
2028.0     0.315     64.0
2029.0     0.287     44.3
2030.0     0.262     20.5
2031.0     0.257    353.6

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.