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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:56:32

Orbital Elements for B936

WDS:	B936	WDS ID/Discoverer
P:	87.240	Orbital period (years)
a:	0.384	Semi-major axis (arcseconds)
i:	103.4	Inclination (degrees)
Ω:	162.1	Longitude of ascending node (degrees)
T:	2003.090	Epoch of periastron passage (year)
e:	0.561	Eccentricity
ω:	226.9	Longitude of periastron (degrees)
Start-Year:	1982.0	Year
End-Year:	2068.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B936

Position:	181858.15-475921.5	Epoch-2000 right ascension and declination
WDS-ID:	18190-4759	WDS designation
Discoverer Code:	B936	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	167732	HD catalog number
Hipparcos number:	89752	Hipparcos catalog number
V1:	9.71	Magnitude of the primary
V2:	10.08	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2015	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for B936

WDS 6th Orbit including measures of B936

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

Ephemeris of B936

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.477    159.3
-------------------------
1982.0     0.122     97.9
1983.0     0.113     89.4
1984.0     0.106     79.6
1985.0     0.103     68.9
1986.0     0.102     57.7
1987.0     0.106     46.8
1988.0     0.112     36.9
1989.0     0.121     28.3
1990.0     0.131     20.9
1991.0     0.143     14.7
1992.0     0.155      9.4
1993.0     0.167      4.9
1994.0     0.178      0.9
1995.0     0.188    357.5
1996.0     0.197    354.3
1997.0     0.202    351.4
1998.0     0.204    348.6
1999.0     0.202    345.8
2000.0     0.193    342.8
2001.0     0.177    339.4
2002.0     0.153    335.1
2003.0     0.122    328.9
2004.0     0.086    317.8
2005.0     0.052    290.9
2006.0     0.046    234.2
2007.0     0.076    199.0
2008.0     0.115    185.5
2009.0     0.153    178.9
2010.0     0.190    174.9
2011.0     0.224    172.2
2012.0     0.256    170.1
2013.0     0.285    168.6
2014.0     0.311    167.2
2015.0     0.336    166.1
2016.0     0.358    165.2
2017.0     0.377    164.3
2018.0     0.395    163.5
2019.0     0.412    162.8
2020.0     0.426    162.1
2021.0     0.439    161.5
2022.0     0.451    160.9
2023.0     0.461    160.3
2024.0     0.470    159.8
2025.0     0.477    159.3
2026.0     0.484    158.8
2027.0     0.489    158.3
2028.0     0.493    157.8
2029.0     0.496    157.3
2030.0     0.499    156.9
2031.0     0.500    156.4
2032.0     0.500    155.9
2033.0     0.500    155.5
2034.0     0.499    155.0
2035.0     0.497    154.5
2036.0     0.494    154.0
2037.0     0.490    153.6
2038.0     0.486    153.1
2039.0     0.481    152.6
2040.0     0.475    152.1
2041.0     0.469    151.5
2042.0     0.462    151.0
2043.0     0.455    150.4
2044.0     0.447    149.9
2045.0     0.438    149.3
2046.0     0.429    148.6
2047.0     0.419    148.0
2048.0     0.409    147.3
2049.0     0.398    146.6
2050.0     0.387    145.8
2051.0     0.375    145.0
2052.0     0.363    144.2
2053.0     0.351    143.3
2054.0     0.338    142.3
2055.0     0.324    141.2
2056.0     0.311    140.1
2057.0     0.297    138.8
2058.0     0.282    137.4
2059.0     0.268    135.8
2060.0     0.253    134.1
2061.0     0.238    132.2
2062.0     0.223    130.0
2063.0     0.208    127.4
2064.0     0.193    124.5
2065.0     0.178    121.1
2066.0     0.163    117.1
2067.0     0.149    112.3

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.