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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:39:35

Orbital Elements for HU856

WDS:	HU856	WDS ID/Discoverer
P:	80.350	Orbital period (years)
a:	0.201	Semi-major axis (arcseconds)
i:	36.2	Inclination (degrees)
Ω:	185.5	Longitude of ascending node (degrees)
T:	1949.900	Epoch of periastron passage (year)
e:	0.589	Eccentricity
ω:	263.6	Longitude of periastron (degrees)
Start-Year:	1985.0	Year
End-Year:	2065.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU856

Position:	082523.73+372318.7	Epoch-2000 right ascension and declination
WDS-ID:	08254+3723	WDS designation
Discoverer Code:	HU856	Discover designation and components
ADS number:	6796	Aitken Double Star catalog
HD number:	70803	HD catalog number
Hipparcos number:	41286	Hipparcos catalog number
V1:	8.72	Magnitude of the primary
V2:	8.86	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2004	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU856

WDS 6th Orbit including measures of HU856

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

Ephemeris of HU856

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.123      5.4
-------------------------
1985.0     0.259    258.6
1986.0     0.259    260.4
1987.0     0.259    262.2
1988.0     0.259    263.9
1989.0     0.259    265.7
1990.0     0.259    267.5
1991.0     0.258    269.2
1992.0     0.258    271.0
1993.0     0.257    272.8
1994.0     0.256    274.6
1995.0     0.255    276.4
1996.0     0.254    278.2
1997.0     0.252    280.1
1998.0     0.251    281.9
1999.0     0.249    283.8
2000.0     0.248    285.7
2001.0     0.246    287.7
2002.0     0.244    289.6
2003.0     0.241    291.6
2004.0     0.239    293.7
2005.0     0.236    295.8
2006.0     0.234    297.9
2007.0     0.231    300.1
2008.0     0.228    302.3
2009.0     0.224    304.7
2010.0     0.221    307.0
2011.0     0.217    309.5
2012.0     0.213    312.1
2013.0     0.209    314.7
2014.0     0.204    317.5
2015.0     0.199    320.4
2016.0     0.194    323.4
2017.0     0.188    326.7
2018.0     0.182    330.1
2019.0     0.176    333.8
2020.0     0.169    337.7
2021.0     0.161    342.1
2022.0     0.153    346.8
2023.0     0.144    352.2
2024.0     0.134    358.3
2025.0     0.123      5.4
2026.0     0.111     14.0
2027.0     0.099     24.7
2028.0     0.086     38.6
2029.0     0.074     57.2
2030.0     0.068     81.0
2031.0     0.068    107.2
2032.0     0.076    130.3
2033.0     0.088    148.0
2034.0     0.102    161.0
2035.0     0.116    171.0
2036.0     0.129    179.0
2037.0     0.140    185.5
2038.0     0.151    191.0
2039.0     0.161    195.9
2040.0     0.170    200.1
2041.0     0.179    204.0
2042.0     0.186    207.6
2043.0     0.194    210.8
2044.0     0.200    213.9
2045.0     0.206    216.7
2046.0     0.211    219.4
2047.0     0.217    222.0
2048.0     0.221    224.5
2049.0     0.225    226.9
2050.0     0.229    229.1
2051.0     0.233    231.3
2052.0     0.236    233.5
2053.0     0.239    235.6
2054.0     0.242    237.6
2055.0     0.245    239.6
2056.0     0.247    241.6
2057.0     0.249    243.5
2058.0     0.251    245.4
2059.0     0.253    247.2
2060.0     0.254    249.1
2061.0     0.255    250.9
2062.0     0.256    252.7
2063.0     0.257    254.5
2064.0     0.258    256.3

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.