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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:44:26

Orbital Elements for TOK197

WDS:	TOK197	WDS ID/Discoverer
P:	0.652	Orbital period (years)
a:	0.0321	Semi-major axis (arcseconds)
i:	101.9	Inclination (degrees)
Ω:	105.3	Longitude of ascending node (degrees)
T:	2015.593	Epoch of periastron passage (year)
e:	0.041	Eccentricity
ω:	248.5	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK197

Position:	090226.80-662345.9	Epoch-2000 right ascension and declination
WDS-ID:	09024-6624	WDS designation
Discoverer Code:	TOK197	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	78045	HD catalog number
Hipparcos number:	44382	Hipparcos catalog number
V1:	4.7	Magnitude of the primary
V2:	4.8	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for TOK197

WDS 6th Orbit including measures of TOK197

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

Ephemeris of TOK197

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.024     93.8
-------------------------

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.