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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:07:38

Orbital Elements for SEE389

WDS:	SEE389	WDS ID/Discoverer
P:	46.200	Orbital period (years)
a:	0.221	Semi-major axis (arcseconds)
i:	93.5	Inclination (degrees)
Ω:	327.9	Longitude of ascending node (degrees)
T:	1976.630	Epoch of periastron passage (year)
e:	0.088	Eccentricity
ω:	0.4	Longitude of periastron (degrees)
Start-Year:	2002.0	Year
End-Year:	2048.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE389

Position:	193949.46-232539.4	Epoch-2000 right ascension and declination
WDS-ID:	19398-2326	WDS designation
Discoverer Code:	SEE389	Discover designation and components
ADS number:	12741	Aitken Double Star catalog
HD number:	185404	HD catalog number
Hipparcos number:	96729	Hipparcos catalog number
V1:	6.80	Magnitude of the primary
V2:	7.51	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SEE389

WDS 6th Orbit including measures of SEE389

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

Ephemeris of SEE389

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.190    326.6
-------------------------
2002.0     0.231    146.9
2003.0     0.222    146.5
2004.0     0.209    146.0
2005.0     0.193    145.4
2006.0     0.174    144.7
2007.0     0.153    143.9
2008.0     0.129    142.7
2009.0     0.103    141.0
2010.0     0.076    138.0
2011.0     0.047    131.6
2012.0     0.021    107.4
2013.0     0.020     10.6
2014.0     0.046    344.1
2015.0     0.074    337.4
2016.0     0.101    334.3
2017.0     0.126    332.5
2018.0     0.149    331.3
2019.0     0.168    330.3
2020.0     0.183    329.6
2021.0     0.194    328.9
2022.0     0.200    328.4
2023.0     0.201    327.8
2024.0     0.198    327.2
2025.0     0.190    326.6
2026.0     0.177    325.9
2027.0     0.160    325.1
2028.0     0.139    324.1
2029.0     0.116    322.6
2030.0     0.090    320.4
2031.0     0.062    316.2
2032.0     0.034    305.2
2033.0     0.013    242.7
2034.0     0.032    172.7
2035.0     0.060    160.6
2036.0     0.088    156.2
2037.0     0.115    154.0
2038.0     0.140    152.5
2039.0     0.163    151.5
2040.0     0.183    150.7
2041.0     0.200    150.1
2042.0     0.215    149.6
2043.0     0.226    149.1
2044.0     0.234    148.7
2045.0     0.239    148.2
2046.0     0.240    147.8
2047.0     0.238    147.4

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.