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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:13:57

Orbital Elements for TOK401

WDS:	TOK401	WDS ID/Discoverer
P:	10.305	Orbital period (years)
a:	0.116	Semi-major axis (arcseconds)
i:	76.4	Inclination (degrees)
Ω:	117.7	Longitude of ascending node (degrees)
T:	2016.253	Epoch of periastron passage (year)
e:	0.101	Eccentricity
ω:	322.2	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 TOK401

Position:	125349.71+122506.2	Epoch-2000 right ascension and declination
WDS-ID:	12528+1225	WDS designation
Discoverer Code:	TOK401	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	112097	HD catalog number
Hipparcos number:	62933	Hipparcos catalog number
V1:	6.3	Magnitude of the primary
V2:	9.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for TOK401

WDS 6th Orbit including measures of TOK401

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

Ephemeris of TOK401

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.035    344.8
-------------------------
2020.0     0.037    247.7
2021.0     0.086    282.3
2022.0     0.119    292.6
2023.0     0.122    299.8
2024.0     0.090    309.4
2025.0     0.035    344.8
2026.0     0.054     94.1
2027.0     0.099    113.1
2028.0     0.102    123.2
2029.0     0.064    139.1

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.