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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:17:17

Orbital Elements for NLTT403

WDS:	NLTT403	WDS ID/Discoverer
P:	1.322	Orbital period (years)
a:	0.009800000000000001	Semi-major axis (arcseconds)
i:	74.0	Inclination (degrees)
Ω:	169.0	Longitude of ascending node (degrees)
T:	1991.842	Epoch of periastron passage (year)
e:	0.22	Eccentricity
ω:	112.0	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 NLTT403

Position:	000915.63+251656.3	Epoch-2000 right ascension and declination
WDS-ID:	00093+2517	WDS designation
Discoverer Code:	NLTT403	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	471	HD catalog number
Hipparcos number:	754	Hipparcos catalog number
V1:	7.77	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 NLTT403

WDS 6th Orbit including measures of NLTT403

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

Ephemeris of NLTT403

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    341.1
-------------------------

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.