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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:18:15

Orbital Elements for HDS32

WDS:	HDS32	WDS ID/Discoverer
P:	15.340	Orbital period (years)
a:	0.229	Semi-major axis (arcseconds)
i:	154.2	Inclination (degrees)
Ω:	88.2	Longitude of ascending node (degrees)
T:	2009.450	Epoch of periastron passage (year)
e:	0.25	Eccentricity
ω:	260.6	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS32

Position:	001329.10-364943.0	Epoch-2000 right ascension and declination
WDS-ID:	00135-3650	WDS designation
Discoverer Code:	HDS32	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	1083	Hipparcos catalog number
V1:	11.35	Magnitude of the primary
V2:	11.93	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS32

WDS 6th Orbit including measures of HDS32

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

Ephemeris of HDS32

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.155    179.2
-------------------------
2018.0     0.256    354.3
2019.0     0.251    337.6
2020.0     0.244    320.2
2021.0     0.234    301.4
2022.0     0.217    280.4
2023.0     0.194    255.1
2024.0     0.167    221.9
2025.0     0.155    179.2
2026.0     0.172    137.9
2027.0     0.202    107.0
2028.0     0.229     83.9
2029.0     0.246     65.0
2030.0     0.256     48.0
2031.0     0.260     31.9

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.