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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:03:09

Orbital Elements for BEU15

WDS:	BEU15	WDS ID/Discoverer
P:	7.272	Orbital period (years)
a:	0.18446	Semi-major axis (arcseconds)
i:	87.25	Inclination (degrees)
Ω:	89.08	Longitude of ascending node (degrees)
T:	2019.676	Epoch of periastron passage (year)
e:	0.4571	Eccentricity
ω:	154.3	Longitude of periastron (degrees)
Start-Year:	2022.0	Year
End-Year:	2028.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU15

Position:	111133.12-145928.9	Epoch-2000 right ascension and declination
WDS-ID:	11116-1459	WDS designation
Discoverer Code:	BEU15	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	97233	HD catalog number
Hipparcos number:	54677	Hipparcos catalog number
V1:	9.05	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BEU15

WDS 6th Orbit including measures of BEU15

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

Ephemeris of BEU15

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.219     89.7
-------------------------
2022.0     0.140     85.2
2023.0     0.226     87.4
2024.0     0.257     88.5
2025.0     0.219     89.7
2026.0     0.092     92.9
2027.0     0.096    268.2

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.