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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:34:30

Orbital Elements for TOK185

WDS:	TOK185	WDS ID/Discoverer
P:	11.290	Orbital period (years)
a:	0.0908	Semi-major axis (arcseconds)
i:	45.3	Inclination (degrees)
Ω:	270.4	Longitude of ascending node (degrees)
T:	2014.170	Epoch of periastron passage (year)
e:	0.066	Eccentricity
ω:	31.8	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK185

Position:	021636.08-502542.8	Epoch-2000 right ascension and declination
WDS-ID:	02166-5026	WDS designation
Discoverer Code:	TOK185	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	14239	HD catalog number
Hipparcos number:	10611	Hipparcos catalog number
V1:	9.9	Magnitude of the primary
V2:	9.9	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for TOK185

WDS 6th Orbit including measures of TOK185

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

Ephemeris of TOK185

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.084    281.1
-------------------------
2020.0     0.087    118.3
2021.0     0.073    147.1
2022.0     0.066    186.9
2023.0     0.074    226.2
2024.0     0.084    255.6
2025.0     0.084    281.1
2026.0     0.071    311.8
2027.0     0.061    356.0
2028.0     0.071     40.2
2029.0     0.088     69.4

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.