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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:53:38

Orbital Elements for TOK56

WDS:	TOK56	WDS ID/Discoverer
P:	10.140	Orbital period (years)
a:	0.045	Semi-major axis (arcseconds)
i:	29.7	Inclination (degrees)
Ω:	215.7	Longitude of ascending node (degrees)
T:	2024.200	Epoch of periastron passage (year)
e:	0.464	Eccentricity
ω:	263.4	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 TOK56

Position:	180223.05+205001.1	Epoch-2000 right ascension and declination
WDS-ID:	18024+2050	WDS designation
Discoverer Code:	TOK56	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	164852	HD catalog number
Hipparcos number:	88331	Hipparcos catalog number
V1:	5.6	Magnitude of the primary
V2:	6.7	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for TOK56

WDS 6th Orbit including measures of TOK56

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

Ephemeris of TOK56

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.030    194.9
-------------------------
2020.0     0.056    313.0
2021.0     0.053    331.6
2022.0     0.047    353.8
2023.0     0.037     25.4
2024.0     0.022     94.0
2025.0     0.030    194.9
2026.0     0.044    234.6
2027.0     0.052    258.0
2028.0     0.056    276.6
2029.0     0.057    293.6

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.