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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:33:35

Orbital Elements for TOK434BA,BB

WDS:	TOK434BA,BB	WDS ID/Discoverer
P:	11.000	Orbital period (years)
a:	0.254	Semi-major axis (arcseconds)
i:	87.3	Inclination (degrees)
Ω:	235.0	Longitude of ascending node (degrees)
T:	2022.210	Epoch of periastron passage (year)
e:	0.25	Eccentricity
ω:	270.0	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 TOK434BA,BB

Position:	222556.40-750052.8	Epoch-2000 right ascension and declination
WDS-ID:	22259-7501	WDS designation
Discoverer Code:	TOK434BA,BB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.1	Magnitude of the primary
V2:	11.	Magnitude of the secondary
Equinox:		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 TOK434BA,BB

WDS 6th Orbit including measures of TOK434BA,BB

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

Ephemeris of TOK434BA,BB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.237    236.5
-------------------------
2020.0     0.246     54.5
2021.0     0.190     56.4
2022.0     0.040     67.7
2023.0     0.137    232.1
2024.0     0.234    234.8
2025.0     0.237    236.5
2026.0     0.176    238.7
2027.0     0.080    245.3
2028.0     0.036     30.5
2029.0     0.139     49.7

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.