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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:25:08

Orbital Elements for FIN371

WDS:	FIN371	WDS ID/Discoverer
P:	51.600	Orbital period (years)
a:	0.099	Semi-major axis (arcseconds)
i:	108.0	Inclination (degrees)
Ω:	233.8	Longitude of ascending node (degrees)
T:	2015.500	Epoch of periastron passage (year)
e:	0.201	Eccentricity
ω:	38.0	Longitude of periastron (degrees)
Start-Year:	2000.0	Year
End-Year:	2050.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN371

Position:	143817.68-495403.9	Epoch-2000 right ascension and declination
WDS-ID:	14383-4954	WDS designation
Discoverer Code:	FIN371	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	128415	HD catalog number
Hipparcos number:	71577	Hipparcos catalog number
V1:	7.4	Magnitude of the primary
V2:	7.4	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for FIN371

WDS 6th Orbit including measures of FIN371

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

Ephemeris of FIN371

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.062     76.0
-------------------------
2000.0     0.034    323.9
2001.0     0.034    305.7
2002.0     0.038    289.7
2003.0     0.044    277.2
2004.0     0.050    267.7
2005.0     0.057    260.5
2006.0     0.064    254.8
2007.0     0.070    250.1
2008.0     0.075    246.2
2009.0     0.079    242.7
2010.0     0.082    239.5
2011.0     0.083    236.4
2012.0     0.082    233.4
2013.0     0.079    230.2
2014.0     0.074    226.7
2015.0     0.068    222.6
2016.0     0.060    217.5
2017.0     0.051    210.8
2018.0     0.041    200.9
2019.0     0.033    185.5
2020.0     0.027    161.3
2021.0     0.027    131.5
2022.0     0.033    107.4
2023.0     0.042     92.1
2024.0     0.052     82.5
2025.0     0.062     76.0
2026.0     0.071     71.3
2027.0     0.080     67.7
2028.0     0.088     64.8
2029.0     0.095     62.3
2030.0     0.101     60.1
2031.0     0.106     58.2
2032.0     0.109     56.4
2033.0     0.112     54.7
2034.0     0.113     53.1
2035.0     0.114     51.5
2036.0     0.114     49.9
2037.0     0.112     48.3
2038.0     0.110     46.6
2039.0     0.107     44.8
2040.0     0.103     42.9
2041.0     0.098     40.9
2042.0     0.092     38.6
2043.0     0.086     36.0
2044.0     0.080     33.0
2045.0     0.073     29.5
2046.0     0.065     25.1
2047.0     0.058     19.6
2048.0     0.051     12.6
2049.0     0.044      3.2

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.