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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:00:29

Orbital Elements for JAO8

WDS:	JAO8	WDS ID/Discoverer
P:	15.170	Orbital period (years)
a:	0.2082	Semi-major axis (arcseconds)
i:	90.32	Inclination (degrees)
Ω:	248.08	Longitude of ascending node (degrees)
T:	2004.580	Epoch of periastron passage (year)
e:	0.84	Eccentricity
ω:	280.74	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JAO8

Position:	184821.10-685532.0	Epoch-2000 right ascension and declination
WDS-ID:	18483-6856	WDS designation
Discoverer Code:	JAO8	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	23.6	Magnitude of the primary
V2:	20.9	Magnitude of the secondary
Equinox:		Equinox
Date:	2011	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for JAO8

WDS 6th Orbit including measures of JAO8

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

Ephemeris of JAO8

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.009     80.5
-------------------------
2018.0     0.143     68.4
2019.0     0.108     68.2
2020.0     0.056    248.1
2021.0     0.084    247.5
2022.0     0.069    247.0
2023.0     0.045    246.0
2024.0     0.019    242.4
2025.0     0.009     80.5
2026.0     0.037     71.3
2027.0     0.063     70.0
2028.0     0.088     69.4
2029.0     0.110     69.1
2030.0     0.128     68.9
2031.0     0.143     68.7

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.