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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:35:57

Orbital Elements for HDS3219

WDS:	HDS3219	WDS ID/Discoverer
P:	13.310	Orbital period (years)
a:	0.088	Semi-major axis (arcseconds)
i:	41.4	Inclination (degrees)
Ω:	165.7	Longitude of ascending node (degrees)
T:	2011.340	Epoch of periastron passage (year)
e:	0.207	Eccentricity
ω:	341.8	Longitude of periastron (degrees)
Start-Year:	2019.0	Year
End-Year:	2031.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3219

Position:	223959.38-831506.0	Epoch-2000 right ascension and declination
WDS-ID:	22400-8315	WDS designation
Discoverer Code:	HDS3219	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	213615	HD catalog number
Hipparcos number:	111898	Hipparcos catalog number
V1:	6.94	Magnitude of the primary
V2:	8.79	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS3219

WDS 6th Orbit including measures of HDS3219

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

Ephemeris of HDS3219

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.070    163.1
-------------------------
2019.0     0.105    345.9
2020.0     0.098      0.6
2021.0     0.085     18.9
2022.0     0.068     45.4
2023.0     0.058     85.3
2024.0     0.063    128.6
2025.0     0.070    163.1
2026.0     0.069    194.1
2027.0     0.066    228.2
2028.0     0.069    262.9
2029.0     0.080    290.9
2030.0     0.093    311.4

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.