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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:20:37

Orbital Elements for FIN329

WDS:	FIN329	WDS ID/Discoverer
P:	36.860	Orbital period (years)
a:	0.176	Semi-major axis (arcseconds)
i:	112.8	Inclination (degrees)
Ω:	81.3	Longitude of ascending node (degrees)
T:	2003.190	Epoch of periastron passage (year)
e:	0.054	Eccentricity
ω:	160.2	Longitude of periastron (degrees)
Start-Year:	2007.0	Year
End-Year:	2043.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN329

Position:	211545.84-531547.0	Epoch-2000 right ascension and declination
WDS-ID:	21158-5316	WDS designation
Discoverer Code:	FIN329	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	202103	HD catalog number
Hipparcos number:	104978	Hipparcos catalog number
V1:	6.33	Magnitude of the primary
V2:	6.80	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for FIN329

WDS 6th Orbit including measures of FIN329

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

Ephemeris of FIN329

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.182     77.4
-------------------------
2007.0     0.159    252.7
2008.0     0.148    247.7
2009.0     0.134    241.9
2010.0     0.118    234.5
2011.0     0.100    224.5
2012.0     0.084    210.5
2013.0     0.072    191.0
2014.0     0.070    167.1
2015.0     0.077    144.7
2016.0     0.091    127.8
2017.0     0.109    116.0
2018.0     0.127    107.5
2019.0     0.144    101.1
2020.0     0.159     96.0
2021.0     0.171     91.7
2022.0     0.179     87.8
2023.0     0.184     84.3
2024.0     0.185     80.9
2025.0     0.182     77.4
2026.0     0.175     73.7
2027.0     0.164     69.6
2028.0     0.150     64.9
2029.0     0.133     59.1
2030.0     0.115     51.4
2031.0     0.096     40.8
2032.0     0.079     25.1
2033.0     0.068      2.9
2034.0     0.068    337.1
2035.0     0.079    314.8
2036.0     0.095    299.2
2037.0     0.114    288.4
2038.0     0.131    280.6
2039.0     0.146    274.5
2040.0     0.158    269.5
2041.0     0.165    265.0
2042.0     0.167    260.8

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.