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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:12:15

Orbital Elements for WSI72

WDS:	WSI72	WDS ID/Discoverer
P:	0.962	Orbital period (years)
a:	0.0994	Semi-major axis (arcseconds)
i:	93.8	Inclination (degrees)
Ω:	39.8	Longitude of ascending node (degrees)
T:	2016.174	Epoch of periastron passage (year)
e:	0.258	Eccentricity
ω:	163.2	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 WSI72

Position:	050835.04-181019.3	Epoch-2000 right ascension and declination
WDS-ID:	05086-1810	WDS designation
Discoverer Code:	WSI72	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	23932	Hipparcos catalog number
V1:	11.1	Magnitude of the primary
V2:	11.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for WSI72

WDS 6th Orbit including measures of WSI72

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

Ephemeris of WSI72

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.024    205.4
-------------------------

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.