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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:33:34

Orbital Elements for TOK391CA,CB

WDS:	TOK391CA,CB	WDS ID/Discoverer
P:	5.450	Orbital period (years)
a:	0.081	Semi-major axis (arcseconds)
i:	81.2	Inclination (degrees)
Ω:	308.7	Longitude of ascending node (degrees)
T:	2017.560	Epoch of periastron passage (year)
e:	0.483	Eccentricity
ω:	160.7	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 TOK391CA,CB

Position:	072921.74-150015.5	Epoch-2000 right ascension and declination
WDS-ID:	07294-1500	WDS designation
Discoverer Code:	TOK391CA,CB	Discover designation and components
ADS number:	6126	Aitken Double Star catalog
HD number:	59438	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	6.4	Magnitude of the primary
V2:	7.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for TOK391CA,CB

WDS 6th Orbit including measures of TOK391CA,CB

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

Ephemeris of TOK391CA,CB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.089    301.5
-------------------------
2023.0     0.039    125.3
2024.0     0.022    273.4
2025.0     0.089    301.5
2026.0     0.117    306.8

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.