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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:03:07

Orbital Elements for HDS601AA1,2

WDS:	HDS601AA1,2	WDS ID/Discoverer
P:	1.673	Orbital period (years)
a:	0.046	Semi-major axis (arcseconds)
i:	62.7	Inclination (degrees)
Ω:	286.5	Longitude of ascending node (degrees)
T:	2013.958	Epoch of periastron passage (year)
e:	0.426	Eccentricity
ω:	267.7	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS601AA1,2

Position:	043942.61+095219.4	Epoch-2000 right ascension and declination
WDS-ID:	04397+0952	WDS designation
Discoverer Code:	HDS601AA1,2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	286955	HD catalog number
Hipparcos number:	21710	Hipparcos catalog number
V1:	9.36	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS601AA1,2

WDS 6th Orbit including measures of HDS601AA1,2

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

Ephemeris of HDS601AA1,2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.032     44.9
-------------------------

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.