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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:08:32

Orbital Elements for TOK368

WDS:	TOK368	WDS ID/Discoverer
P:	13.760	Orbital period (years)
a:	0.101	Semi-major axis (arcseconds)
i:	0.0	Inclination (degrees)
Ω:	63.5	Longitude of ascending node (degrees)
T:	2023.356	Epoch of periastron passage (year)
e:	0.537	Eccentricity
ω:	0.0	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 TOK368

Position:	194636.10+070320.4	Epoch-2000 right ascension and declination
WDS-ID:	19466+0703	WDS designation
Discoverer Code:	TOK368	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	186843	HD catalog number
Hipparcos number:	97312	Hipparcos catalog number
V1:	8.20	Magnitude of the primary
V2:	10.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for TOK368

WDS 6th Orbit including measures of TOK368

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

Ephemeris of TOK368

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.085    169.7
-------------------------
2019.0     0.140    268.8
2020.0     0.124    281.7
2021.0     0.103    299.0
2022.0     0.076    327.4
2023.0     0.050     28.4
2024.0     0.056    121.9
2025.0     0.085    169.7
2026.0     0.110    193.7
2027.0     0.129    209.4
2028.0     0.143    221.4
2029.0     0.152    231.8
2030.0     0.155    241.3

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.