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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:44:39

Orbital Elements for JNN66

WDS:	JNN66	WDS ID/Discoverer
P:	10.200	Orbital period (years)
a:	0.309	Semi-major axis (arcseconds)
i:	79.5	Inclination (degrees)
Ω:	106.6	Longitude of ascending node (degrees)
T:	2024.510	Epoch of periastron passage (year)
e:	0.9	Eccentricity
ω:	271.07	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JNN66

Position:	090758.23+215410.9	Epoch-2000 right ascension and declination
WDS-ID:	09080+2154	WDS designation
Discoverer Code:	JNN66	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	13.4	Magnitude of the primary
V2:	14.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2016	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for JNN66

WDS 6th Orbit including measures of JNN66

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

Ephemeris of JNN66

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.121    119.0
-------------------------
2020.0     0.112    215.6
2021.0     0.126    234.8
2022.0     0.142    249.7
2023.0     0.151    261.9
2024.0     0.127    274.8
2025.0     0.121    119.0
2026.0     0.140    133.6
2027.0     0.129    148.2
2028.0     0.115    166.2
2029.0     0.107    188.2

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.