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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:58:28

Orbital Elements for KSA104AB

WDS:	KSA104AB	WDS ID/Discoverer
P:	9.287	Orbital period (years)
a:	0.04164	Semi-major axis (arcseconds)
i:	159.2	Inclination (degrees)
Ω:	65.7	Longitude of ascending node (degrees)
T:	2008.648	Epoch of periastron passage (year)
e:	0.68	Eccentricity
ω:	68.4	Longitude of periastron (degrees)
Start-Year:	2021.0	Year
End-Year:	2029.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KSA104AB

Position:	041847.04+282007.3	Epoch-2000 right ascension and declination
WDS-ID:	04188+2820	WDS designation
Discoverer Code:	KSA104AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	7.9	Magnitude of the primary
V2:	8.3	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 KSA104AB

WDS 6th Orbit including measures of KSA104AB

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

Ephemeris of KSA104AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.052    148.5
-------------------------
2021.0     0.062    196.0
2022.0     0.066    184.8
2023.0     0.065    174.2
2024.0     0.061    162.8
2025.0     0.052    148.5
2026.0     0.038    125.7
2027.0     0.016     52.3
2028.0     0.030    245.5

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.