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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:31:12

Orbital Elements for TOK390CA,CB

WDS:	TOK390CA,CB	WDS ID/Discoverer
P:	4.623	Orbital period (years)
a:	0.159	Semi-major axis (arcseconds)
i:	161.7	Inclination (degrees)
Ω:	58.7	Longitude of ascending node (degrees)
T:	2011.808	Epoch of periastron passage (year)
e:	0.462	Eccentricity
ω:	232.0	Longitude of periastron (degrees)
Start-Year:	2023.0	Year
End-Year:	2027.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK390CA,CB

Position:	070350.22-433340.8	Epoch-2000 right ascension and declination
WDS-ID:	07040-4337	WDS designation
Discoverer Code:	TOK390CA,CB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	53680	HD catalog number
Hipparcos number:	34052	Hipparcos catalog number
V1:	8.7	Magnitude of the primary
V2:	13.	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for TOK390CA,CB

WDS 6th Orbit including measures of TOK390CA,CB

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

Ephemeris of TOK390CA,CB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.140    292.3
-------------------------
2023.0     0.224     20.1
2024.0     0.209    346.2
2025.0     0.140    292.3
2026.0     0.101    119.0

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.