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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:56:28

Orbital Elements for BU1232

WDS:	BU1232	WDS ID/Discoverer
P:	60.000	Orbital period (years)
a:	0.28	Semi-major axis (arcseconds)
i:	78.4	Inclination (degrees)
Ω:	166.7	Longitude of ascending node (degrees)
T:	1928.000	Epoch of periastron passage (year)
e:	0.55	Eccentricity
ω:	18.3	Longitude of periastron (degrees)
Start-Year:	1995.0	Year
End-Year:	2055.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1232

Position:	040854.31+291126.7	Epoch-2000 right ascension and declination
WDS-ID:	04089+2911	WDS designation
Discoverer Code:	BU1232	Discover designation and components
ADS number:	3017	Aitken Double Star catalog
HD number:	26090	HD catalog number
Hipparcos number:	19365	Hipparcos catalog number
V1:	8.8	Magnitude of the primary
V2:	9.6	Magnitude of the secondary
Equinox:		Equinox
Date:	1976	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BU1232

WDS 6th Orbit including measures of BU1232

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

Ephemeris of BU1232

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.351    354.2
-------------------------
1995.0     0.139    330.8
1996.0     0.171    334.1
1997.0     0.201    336.3
1998.0     0.229    338.1
1999.0     0.255    339.4
2000.0     0.278    340.5
2001.0     0.299    341.5
2002.0     0.319    342.3
2003.0     0.336    343.0
2004.0     0.352    343.7
2005.0     0.366    344.3
2006.0     0.378    344.9
2007.0     0.388    345.4
2008.0     0.397    345.9
2009.0     0.405    346.4
2010.0     0.411    346.9
2011.0     0.416    347.4
2012.0     0.419    347.8
2013.0     0.421    348.3
2014.0     0.422    348.7
2015.0     0.422    349.1
2016.0     0.420    349.6
2017.0     0.417    350.0
2018.0     0.413    350.5
2019.0     0.408    351.0
2020.0     0.401    351.5
2021.0     0.393    352.0
2022.0     0.385    352.5
2023.0     0.375    353.0
2024.0     0.363    353.6
2025.0     0.351    354.2
2026.0     0.338    354.9
2027.0     0.323    355.6
2028.0     0.308    356.4
2029.0     0.291    357.3
2030.0     0.273    358.3
2031.0     0.254    359.4
2032.0     0.234      0.7
2033.0     0.213      2.3
2034.0     0.191      4.2
2035.0     0.169      6.7
2036.0     0.145      9.9
2037.0     0.121     14.4
2038.0     0.097     21.2
2039.0     0.074     32.3
2040.0     0.055     52.0
2041.0     0.047     83.9
2042.0     0.055    116.1
2043.0     0.073    136.2
2044.0     0.094    147.8
2045.0     0.113    155.2
2046.0     0.126    160.7
2047.0     0.129    165.5
2048.0     0.120    170.5
2049.0     0.097    177.1
2050.0     0.067    189.2
2051.0     0.038    221.4
2052.0     0.040    285.1
2053.0     0.070    314.6
2054.0     0.105    325.4

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.