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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:47:26

Orbital Elements for 29DRA

WDS:	29DRA	WDS ID/Discoverer
P:	2.475	Orbital period (years)
a:	0.0064	Semi-major axis (arcseconds)
i:	156.2	Inclination (degrees)
Ω:	349.8	Longitude of ascending node (degrees)
T:	1988.871	Epoch of periastron passage (year)
e:	0.072	Eccentricity
ω:	297.5	Longitude of periastron (degrees)
Start-Year:	2024.0	Year
End-Year:	2026.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for 29DRA

Position:	173241.35+741338.2	Epoch-2000 right ascension and declination
WDS-ID:	17327+7414	WDS designation
Discoverer Code:	29DRA	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	160538	HD catalog number
Hipparcos number:	85852	Hipparcos catalog number
V1:	6.64	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for 29DRA

WDS 6th Orbit including measures of 29DRA

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

Ephemeris of 29DRA

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    198.5
-------------------------
2024.0     0.006    334.9
2025.0     0.007    198.5

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.