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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:41:53

Orbital Elements for TOK395BC

WDS:	TOK395BC	WDS ID/Discoverer
P:	6.845	Orbital period (years)
a:	0.0889	Semi-major axis (arcseconds)
i:	160.0	Inclination (degrees)
Ω:	8.6	Longitude of ascending node (degrees)
T:	2016.416	Epoch of periastron passage (year)
e:	0.948	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2022.0	Year
End-Year:	2028.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK395BC

Position:	084441.00-212548.0	Epoch-2000 right ascension and declination
WDS-ID:	08447-2126	WDS designation
Discoverer Code:	TOK395BC	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	42910	Hipparcos catalog number
V1:	10.9	Magnitude of the primary
V2:	11.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for TOK395BC

WDS 6th Orbit including measures of TOK395BC

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

Ephemeris of TOK395BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.145    196.4
-------------------------
2022.0     0.125    177.5
2023.0     0.048    159.4
2024.0     0.093    205.2
2025.0     0.145    196.4
2026.0     0.169    191.5
2027.0     0.172    187.3

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.