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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:05:31

Orbital Elements for BU314AB

WDS:	BU314AB	WDS ID/Discoverer
P:	55.380	Orbital period (years)
a:	0.467	Semi-major axis (arcseconds)
i:	119.3	Inclination (degrees)
Ω:	131.6	Longitude of ascending node (degrees)
T:	2034.260	Epoch of periastron passage (year)
e:	0.921	Eccentricity
ω:	339.2	Longitude of periastron (degrees)
Start-Year:	1998.0	Year
End-Year:	2052.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU314AB

Position:	045901.33-162233.0	Epoch-2000 right ascension and declination
WDS-ID:	04590-1623	WDS designation
Discoverer Code:	BU314AB	Discover designation and components
ADS number:	3588	Aitken Double Star catalog
HD number:	31925	HD catalog number
Hipparcos number:	23166	Hipparcos catalog number
V1:	5.92	Magnitude of the primary
V2:	7.50	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BU314AB

WDS 6th Orbit including measures of BU314AB

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

Ephemeris of BU314AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.611    313.8
-------------------------
1998.0     0.772    325.6
1999.0     0.788    325.1
2000.0     0.801    324.7
2001.0     0.814    324.3
2002.0     0.824    323.9
2003.0     0.833    323.5
2004.0     0.841    323.1
2005.0     0.847    322.7
2006.0     0.851    322.3
2007.0     0.854    322.0
2008.0     0.856    321.6
2009.0     0.855    321.2
2010.0     0.854    320.9
2011.0     0.851    320.5
2012.0     0.846    320.1
2013.0     0.839    319.7
2014.0     0.831    319.3
2015.0     0.822    319.0
2016.0     0.810    318.5
2017.0     0.797    318.1
2018.0     0.782    317.7
2019.0     0.764    317.2
2020.0     0.745    316.8
2021.0     0.723    316.3
2022.0     0.699    315.7
2023.0     0.673    315.2
2024.0     0.644    314.5
2025.0     0.611    313.8
2026.0     0.576    313.1
2027.0     0.536    312.2
2028.0     0.492    311.2
2029.0     0.443    309.9
2030.0     0.387    308.4
2031.0     0.323    306.2
2032.0     0.248    302.9
2033.0     0.154    295.9
2034.0     0.029    235.1
2035.0     0.057     33.1
2036.0     0.133    357.0
2037.0     0.203    347.0
2038.0     0.266    342.0
2039.0     0.322    338.9
2040.0     0.373    336.7
2041.0     0.420    334.9
2042.0     0.463    333.5
2043.0     0.502    332.4
2044.0     0.539    331.4
2045.0     0.573    330.5
2046.0     0.604    329.7
2047.0     0.633    329.0
2048.0     0.660    328.4
2049.0     0.685    327.8
2050.0     0.708    327.2
2051.0     0.729    326.7

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.