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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:40:54

Orbital Elements for BEU23

WDS:	BEU23	WDS ID/Discoverer
P:	11.530	Orbital period (years)
a:	0.26239999999999997	Semi-major axis (arcseconds)
i:	103.4	Inclination (degrees)
Ω:	30.69	Longitude of ascending node (degrees)
T:	2024.800	Epoch of periastron passage (year)
e:	0.46	Eccentricity
ω:	204.91	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU23

Position:	231728.13+193646.6	Epoch-2000 right ascension and declination
WDS-ID:	23175+1937	WDS designation
Discoverer Code:	BEU23	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.3	Magnitude of the primary
V2:	12.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for BEU23

WDS 6th Orbit including measures of BEU23

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

Ephemeris of BEU23

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.107    198.2
-------------------------
2020.0     0.302     20.6
2021.0     0.225     14.1
2022.0     0.126    358.8
2023.0     0.060    281.7
2024.0     0.134    222.0
2025.0     0.107    198.2
2026.0     0.089     60.1
2027.0     0.230     39.4
2028.0     0.320     33.6
2029.0     0.362     29.8

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.