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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:34:01

Orbital Elements for JNN18

WDS:	JNN18	WDS ID/Discoverer
P:	6.419	Orbital period (years)
a:	0.1615	Semi-major axis (arcseconds)
i:	115.3	Inclination (degrees)
Ω:	83.73	Longitude of ascending node (degrees)
T:	2016.592	Epoch of periastron passage (year)
e:	0.4232	Eccentricity
ω:	207.66	Longitude of periastron (degrees)
Start-Year:	2022.0	Year
End-Year:	2028.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JNN18

Position:	021320.62+364850.6	Epoch-2000 right ascension and declination
WDS-ID:	02133+3649	WDS designation
Discoverer Code:	JNN18	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	14.2	Magnitude of the primary
V2:	16.6	Magnitude of the secondary
Equinox:		Equinox
Date:	2016	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for JNN18

WDS 6th Orbit including measures of JNN18

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

Ephemeris of JNN18

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.205     86.0
-------------------------
2022.0     0.070    328.4
2023.0     0.086    251.9
2024.0     0.111    108.6
2025.0     0.205     86.0
2026.0     0.215     73.9
2027.0     0.163     58.5

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.