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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:28:32

Orbital Elements for HDS184

WDS:	HDS184	WDS ID/Discoverer
P:	6.313	Orbital period (years)
a:	0.1445	Semi-major axis (arcseconds)
i:	73.9	Inclination (degrees)
Ω:	107.4	Longitude of ascending node (degrees)
T:	2018.549	Epoch of periastron passage (year)
e:	0.515	Eccentricity
ω:	165.8	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 HDS184

Position:	012501.81-325104.0	Epoch-2000 right ascension and declination
WDS-ID:	01250-3251	WDS designation
Discoverer Code:	HDS184	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	6626	Hipparcos catalog number
V1:	10.54	Magnitude of the primary
V2:	10.68	Magnitude of the secondary
Equinox:		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 HDS184

WDS 6th Orbit including measures of HDS184

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

Ephemeris of HDS184

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.071    291.3
-------------------------
2022.0     0.216    105.2
2023.0     0.185    111.9
2024.0     0.079    129.5
2025.0     0.071    291.3
2026.0     0.065     70.7
2027.0     0.165     95.6

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.