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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:28:11

Orbital Elements for HDS934

WDS:	HDS934	WDS ID/Discoverer
P:	12.370	Orbital period (years)
a:	0.132	Semi-major axis (arcseconds)
i:	18.5	Inclination (degrees)
Ω:	93.4	Longitude of ascending node (degrees)
T:	2014.210	Epoch of periastron passage (year)
e:	0.216	Eccentricity
ω:	70.3	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 HDS934

Position:	064352.03-543403.5	Epoch-2000 right ascension and declination
WDS-ID:	06439-5434	WDS designation
Discoverer Code:	HDS934	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	49134	HD catalog number
Hipparcos number:	32242	Hipparcos catalog number
V1:	9.25	Magnitude of the primary
V2:	9.47	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS934

WDS 6th Orbit including measures of HDS934

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

Ephemeris of HDS934

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.116     96.2
-------------------------
2019.0     0.152    314.8
2020.0     0.154    334.8
2021.0     0.152    354.9
2022.0     0.147     16.0
2023.0     0.139     39.0
2024.0     0.129     65.0
2025.0     0.116     96.2
2026.0     0.103    135.7
2027.0     0.099    183.0
2028.0     0.111    226.6
2029.0     0.128    259.7
2030.0     0.142    285.4

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.