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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:24:52

Orbital Elements for FIN331AA,AB

WDS:	FIN331AA,AB	WDS ID/Discoverer
P:	9.205	Orbital period (years)
a:	0.0903	Semi-major axis (arcseconds)
i:	57.59	Inclination (degrees)
Ω:	125.3	Longitude of ascending node (degrees)
T:	1993.496	Epoch of periastron passage (year)
e:	0.2359	Eccentricity
ω:	306.4	Longitude of periastron (degrees)
Start-Year:	2021.0	Year
End-Year:	2029.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN331AA,AB

Position:	061706.62+095632.6	Epoch-2000 right ascension and declination
WDS-ID:	06171+0957	WDS designation
Discoverer Code:	FIN331AA,AB	Discover designation and components
ADS number:	4890	Aitken Double Star catalog
HD number:	43525	HD catalog number
Hipparcos number:	29850	Hipparcos catalog number
V1:	6.1	Magnitude of the primary
V2:	6.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for FIN331AA,AB

WDS 6th Orbit including measures of FIN331AA,AB

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

Ephemeris of FIN331AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.066    247.2
-------------------------
2021.0     0.047     81.5
2022.0     0.075    125.8
2023.0     0.070    155.6
2024.0     0.056    199.1
2025.0     0.066    247.2
2026.0     0.088    275.9
2027.0     0.102    294.0
2028.0     0.094    310.6

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.