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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:43:57

Orbital Elements for TOK375

WDS:	TOK375	WDS ID/Discoverer
P:	12.500	Orbital period (years)
a:	0.1426	Semi-major axis (arcseconds)
i:	165.4	Inclination (degrees)
Ω:	232.2	Longitude of ascending node (degrees)
T:	2022.470	Epoch of periastron passage (year)
e:	0.429	Eccentricity
ω:	149.2	Longitude of periastron (degrees)
Start-Year:	2019.0	Year
End-Year:	2031.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK375

Position:	234626.71-230140.3	Epoch-2000 right ascension and declination
WDS-ID:	23464-2302	WDS designation
Discoverer Code:	TOK375	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	223078	HD catalog number
Hipparcos number:	117247	Hipparcos catalog number
V1:	8.93	Magnitude of the primary
V2:	12.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for TOK375

WDS 6th Orbit including measures of TOK375

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

Ephemeris of TOK375

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.145    321.2
-------------------------
2019.0     0.174    223.9
2020.0     0.147    204.1
2021.0     0.114    173.8
2022.0     0.084    118.3
2023.0     0.088     43.1
2024.0     0.115    351.6
2025.0     0.145    321.2
2026.0     0.170    300.7
2027.0     0.189    284.9
2028.0     0.199    271.3
2029.0     0.202    258.7
2030.0     0.197    245.9

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.