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

Double Star Calculator - Orbit

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

Orbital Elements for HU445AB

WDS:	HU445AB	WDS ID/Discoverer
P:	83.240	Orbital period (years)
a:	0.573	Semi-major axis (arcseconds)
i:	69.0	Inclination (degrees)
Ω:	154.1	Longitude of ascending node (degrees)
T:	2016.750	Epoch of periastron passage (year)
e:	0.837	Eccentricity
ω:	276.2	Longitude of periastron (degrees)
Start-Year:	1984.0	Year
End-Year:	2066.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU445AB

Position:	050144.19+204947.6	Epoch-2000 right ascension and declination
WDS-ID:	05017+2050	WDS designation
Discoverer Code:	HU445AB	Discover designation and components
ADS number:	3614	Aitken Double Star catalog
HD number:	32127	HD catalog number
Hipparcos number:	23396	Hipparcos catalog number
V1:	9.32	Magnitude of the primary
V2:	8.45	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU445AB

WDS 6th Orbit including measures of HU445AB

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

Ephemeris of HU445AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.309    185.1
-------------------------
1984.0     0.420    275.9
1985.0     0.423    277.5
1986.0     0.426    279.1
1987.0     0.429    280.6
1988.0     0.431    282.1
1989.0     0.433    283.6
1990.0     0.435    285.1
1991.0     0.437    286.5
1992.0     0.439    288.0
1993.0     0.440    289.4
1994.0     0.441    290.9
1995.0     0.441    292.3
1996.0     0.442    293.7
1997.0     0.441    295.1
1998.0     0.440    296.6
1999.0     0.439    298.0
2000.0     0.437    299.5
2001.0     0.434    300.9
2002.0     0.431    302.4
2003.0     0.426    303.9
2004.0     0.421    305.5
2005.0     0.414    307.1
2006.0     0.406    308.7
2007.0     0.397    310.5
2008.0     0.386    312.3
2009.0     0.372    314.2
2010.0     0.355    316.3
2011.0     0.335    318.7
2012.0     0.311    321.3
2013.0     0.279    324.5
2014.0     0.238    328.7
2015.0     0.181    335.0
2016.0     0.095    350.5
2017.0     0.055    120.1
2018.0     0.148    152.5
2019.0     0.203    161.5
2020.0     0.237    167.2
2021.0     0.261    171.7
2022.0     0.278    175.5
2023.0     0.291    178.9
2024.0     0.301    182.1
2025.0     0.309    185.1
2026.0     0.315    187.9
2027.0     0.320    190.7
2028.0     0.324    193.4
2029.0     0.328    196.0
2030.0     0.331    198.6
2031.0     0.333    201.1
2032.0     0.335    203.6
2033.0     0.337    206.0
2034.0     0.338    208.5
2035.0     0.340    210.9
2036.0     0.341    213.3
2037.0     0.343    215.7
2038.0     0.344    218.1
2039.0     0.345    220.4
2040.0     0.347    222.7
2041.0     0.348    225.0
2042.0     0.350    227.3
2043.0     0.352    229.6
2044.0     0.354    231.8
2045.0     0.355    234.0
2046.0     0.358    236.2
2047.0     0.360    238.4
2048.0     0.362    240.5
2049.0     0.364    242.6
2050.0     0.367    244.7
2051.0     0.370    246.8
2052.0     0.372    248.8
2053.0     0.375    250.8
2054.0     0.378    252.7
2055.0     0.381    254.7
2056.0     0.384    256.6
2057.0     0.387    258.5
2058.0     0.391    260.3
2059.0     0.394    262.1
2060.0     0.397    263.9
2061.0     0.400    265.6
2062.0     0.404    267.4
2063.0     0.407    269.0
2064.0     0.410    270.7
2065.0     0.413    272.4

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.