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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:05:23

Orbital Elements for NLTT47736

WDS:	NLTT47736	WDS ID/Discoverer
P:	2.467	Orbital period (years)
a:	0.0161	Semi-major axis (arcseconds)
i:	78.0	Inclination (degrees)
Ω:	247.0	Longitude of ascending node (degrees)
T:	1991.733	Epoch of periastron passage (year)
e:	0.45	Eccentricity
ω:	79.0	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 NLTT47736

Position:	192019.42+695457.2	Epoch-2000 right ascension and declination
WDS-ID:	19203+6955	WDS designation
Discoverer Code:	NLTT47736	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	182712	HD catalog number
Hipparcos number:	95044	Hipparcos catalog number
V1:	9.43	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 NLTT47736

WDS 6th Orbit including measures of NLTT47736

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

Ephemeris of NLTT47736

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    108.6
-------------------------
2024.0     0.010     60.4
2025.0     0.007    108.6

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.