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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:43:55

Orbital Elements for GJ3993

WDS:	GJ3993	WDS ID/Discoverer
P:	1.999	Orbital period (years)
a:	0.0104	Semi-major axis (arcseconds)
i:	55.0	Inclination (degrees)
Ω:	29.0	Longitude of ascending node (degrees)
T:	1991.552	Epoch of periastron passage (year)
e:	0.38	Eccentricity
ω:	51.0	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 GJ3993

Position:	171108.43+563933.7	Epoch-2000 right ascension and declination
WDS-ID:	17111+5640	WDS designation
Discoverer Code:	GJ3993	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	155902	HD catalog number
Hipparcos number:	84062	Hipparcos catalog number
V1:	6.99	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1991	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for GJ3993

WDS 6th Orbit including measures of GJ3993

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

Ephemeris of GJ3993

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    311.4
-------------------------

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.