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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:26:58

Orbital Elements for BEU2

WDS:	BEU2	WDS ID/Discoverer
P:	62.600	Orbital period (years)
a:	0.468	Semi-major axis (arcseconds)
i:	51.4	Inclination (degrees)
Ω:	120.5	Longitude of ascending node (degrees)
T:	1993.900	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	1994.0	Year
End-Year:	2056.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU2

Position:	011125.42+152621.9	Epoch-2000 right ascension and declination
WDS-ID:	01114+1526	WDS designation
Discoverer Code:	BEU2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	13.9	Magnitude of the primary
V2:	15.2	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BEU2

WDS 6th Orbit including measures of BEU2

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

Ephemeris of BEU2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.468    299.8
-------------------------
1994.0     0.468    120.9
1995.0     0.466    124.5
1996.0     0.462    128.1
1997.0     0.454    131.8
1998.0     0.445    135.7
1999.0     0.432    139.8
2000.0     0.418    144.2
2001.0     0.402    148.8
2002.0     0.385    153.9
2003.0     0.368    159.4
2004.0     0.350    165.5
2005.0     0.334    172.3
2006.0     0.319    179.7
2007.0     0.306    187.7
2008.0     0.297    196.4
2009.0     0.293    205.4
2010.0     0.292    214.6
2011.0     0.297    223.7
2012.0     0.305    232.4
2013.0     0.317    240.5
2014.0     0.332    248.0
2015.0     0.348    254.8
2016.0     0.366    261.0
2017.0     0.384    266.6
2018.0     0.401    271.7
2019.0     0.417    276.4
2020.0     0.431    280.8
2021.0     0.443    284.9
2022.0     0.454    288.8
2023.0     0.461    292.5
2024.0     0.466    296.2
2025.0     0.468    299.8
2026.0     0.467    303.4
2027.0     0.463    307.0
2028.0     0.457    310.7
2029.0     0.448    314.5
2030.0     0.436    318.6
2031.0     0.423    322.8
2032.0     0.407    327.4
2033.0     0.390    332.3
2034.0     0.373    337.7
2035.0     0.355    343.7
2036.0     0.338    350.2
2037.0     0.323    357.4
2038.0     0.310      5.3
2039.0     0.300     13.7
2040.0     0.294     22.7
2041.0     0.292     31.9
2042.0     0.295     41.0
2043.0     0.302     49.9
2044.0     0.313     58.2
2045.0     0.327     65.8
2046.0     0.343     72.8
2047.0     0.361     79.2
2048.0     0.378     84.9
2049.0     0.396     90.2
2050.0     0.412     95.0
2051.0     0.427     99.5
2052.0     0.440    103.7
2053.0     0.451    107.6
2054.0     0.459    111.4
2055.0     0.465    115.1

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.