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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:39:38

Orbital Elements for DSG7AA,AB

WDS:	DSG7AA,AB	WDS ID/Discoverer
P:	0.619	Orbital period (years)
a:	0.022	Semi-major axis (arcseconds)
i:	102.925	Inclination (degrees)
Ω:	156.601	Longitude of ascending node (degrees)
T:	1987.820	Epoch of periastron passage (year)
e:	0.311	Eccentricity
ω:	23.834	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 DSG7AA,AB

Position:	163251.62+031445.7	Epoch-2000 right ascension and declination
WDS-ID:	16329+0315	WDS designation
Discoverer Code:	DSG7AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	149162	HD catalog number
Hipparcos number:	81023	Hipparcos catalog number
V1:	9.0	Magnitude of the primary
V2:	10.5	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for DSG7AA,AB

WDS 6th Orbit including measures of DSG7AA,AB

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

Ephemeris of DSG7AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    127.4
-------------------------

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.