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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:28:05

Orbital Elements for HDS930

WDS:	HDS930	WDS ID/Discoverer
P:	13.450	Orbital period (years)
a:	0.078	Semi-major axis (arcseconds)
i:	152.0	Inclination (degrees)
Ω:	115.9	Longitude of ascending node (degrees)
T:	2012.650	Epoch of periastron passage (year)
e:	0.285	Eccentricity
ω:	292.9	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 HDS930

Position:	064237.43+395513.1	Epoch-2000 right ascension and declination
WDS-ID:	06426+3955	WDS designation
Discoverer Code:	HDS930	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	32132	Hipparcos catalog number
V1:	9.55	Magnitude of the primary
V2:	11.46	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 HDS930

WDS 6th Orbit including measures of HDS930

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

Ephemeris of HDS930

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.056    238.0
-------------------------
2019.0     0.089      6.7
2020.0     0.092    349.9
2021.0     0.092    333.6
2022.0     0.089    316.7
2023.0     0.082    297.8
2024.0     0.070    273.8
2025.0     0.056    238.0
2026.0     0.050    185.8
2027.0     0.058    137.2
2028.0     0.068    102.9
2029.0     0.075     76.3
2030.0     0.080     53.5

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.