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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:32:39

Orbital Elements for BEU22BA,BB

WDS:	BEU22BA,BB	WDS ID/Discoverer
P:	65.800	Orbital period (years)
a:	0.889	Semi-major axis (arcseconds)
i:	66.2	Inclination (degrees)
Ω:	324.6	Longitude of ascending node (degrees)
T:	2023.080	Epoch of periastron passage (year)
e:	0.503	Eccentricity
ω:	114.4	Longitude of periastron (degrees)
Start-Year:	1993.0	Year
End-Year:	2057.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU22BA,BB

Position:	221718.71-084818.7	Epoch-2000 right ascension and declination
WDS-ID:	22173-0847	WDS designation
Discoverer Code:	BEU22BA,BB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	14.67	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BEU22BA,BB

WDS 6th Orbit including measures of BEU22BA,BB

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

Ephemeris of BEU22BA,BB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.417    131.3
-------------------------
1993.0     0.815    290.0
1994.0     0.841    292.2
1995.0     0.865    294.3
1996.0     0.888    296.2
1997.0     0.910    298.1
1998.0     0.929    299.9
1999.0     0.947    301.6
2000.0     0.963    303.2
2001.0     0.976    304.9
2002.0     0.986    306.4
2003.0     0.994    308.0
2004.0     0.998    309.5
2005.0     1.000    311.0
2006.0     0.997    312.5
2007.0     0.990    314.0
2008.0     0.979    315.6
2009.0     0.963    317.2
2010.0     0.942    318.8
2011.0     0.915    320.6
2012.0     0.881    322.5
2013.0     0.841    324.5
2014.0     0.792    326.7
2015.0     0.735    329.3
2016.0     0.668    332.4
2017.0     0.591    336.2
2018.0     0.503    341.3
2019.0     0.407    348.6
2020.0     0.306      0.7
2021.0     0.217     23.9
2022.0     0.184     64.5
2023.0     0.238    100.9
2024.0     0.328    120.3
2025.0     0.417    131.3
2026.0     0.491    138.6
2027.0     0.546    144.2
2028.0     0.584    148.9
2029.0     0.608    153.1
2030.0     0.620    157.1
2031.0     0.623    161.0
2032.0     0.619    164.9
2033.0     0.609    168.9
2034.0     0.596    173.1
2035.0     0.581    177.4
2036.0     0.564    182.0
2037.0     0.547    186.9
2038.0     0.531    192.1
2039.0     0.516    197.6
2040.0     0.504    203.4
2041.0     0.494    209.5
2042.0     0.488    215.8
2043.0     0.486    222.1
2044.0     0.488    228.5
2045.0     0.495    234.7
2046.0     0.505    240.8
2047.0     0.519    246.5
2048.0     0.536    252.0
2049.0     0.556    257.0
2050.0     0.579    261.7
2051.0     0.603    266.0
2052.0     0.629    270.0
2053.0     0.656    273.7
2054.0     0.684    277.0
2055.0     0.711    280.1
2056.0     0.739    283.0

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.