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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:28:09

Orbital Elements for NLTT4450

WDS:	NLTT4450	WDS ID/Discoverer
P:	2.321	Orbital period (years)
a:	0.0048	Semi-major axis (arcseconds)
i:	113.2	Inclination (degrees)
Ω:	61.9	Longitude of ascending node (degrees)
T:	1989.635	Epoch of periastron passage (year)
e:	0.806	Eccentricity
ω:	328.5	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 NLTT4450

Position:	012103.50+515901.2	Epoch-2000 right ascension and declination
WDS-ID:	01212+5159	WDS designation
Discoverer Code:	NLTT4450	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	8054	HD catalog number
Hipparcos number:	6306	Hipparcos catalog number
V1:	7.62	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 NLTT4450

WDS 6th Orbit including measures of NLTT4450

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

Ephemeris of NLTT4450

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.005    268.1
-------------------------
2024.0     0.006    244.6
2025.0     0.005    268.1

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.