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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:37:49

Orbital Elements for NOR1AA1,2

WDS:	NOR1AA1,2	WDS ID/Discoverer
P:	0.090	Orbital period (years)
a:	0.00362	Semi-major axis (arcseconds)
i:	158.2	Inclination (degrees)
Ω:	104.0	Longitude of ascending node (degrees)
T:	1954.400	Epoch of periastron passage (year)
e:	0.322	Eccentricity
ω:	283.0	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 NOR1AA1,2

Position:	162111.32-253533.9	Epoch-2000 right ascension and declination
WDS-ID:	16212-2536	WDS designation
Discoverer Code:	NOR1AA1,2	Discover designation and components
ADS number:	10009	Aitken Double Star catalog
HD number:	147165	HD catalog number
Hipparcos number:	80112	Hipparcos catalog number
V1:	3.3	Magnitude of the primary
V2:	4.1	Magnitude of the secondary
Equinox:		Equinox
Date:	2006	Date of last observation
Orbit grade:	8	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for NOR1AA1,2

WDS 6th Orbit including measures of NOR1AA1,2

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

Ephemeris of NOR1AA1,2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.003     87.8
-------------------------

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.