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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:25:42

Orbital Elements for HU575AB

WDS:	HU575AB	WDS ID/Discoverer
P:	51.700	Orbital period (years)
a:	0.64	Semi-major axis (arcseconds)
i:	120.0	Inclination (degrees)
Ω:	178.0	Longitude of ascending node (degrees)
T:	1982.000	Epoch of periastron passage (year)
e:	0.09	Eccentricity
ω:	204.0	Longitude of periastron (degrees)
Start-Year:	2000.0	Year
End-Year:	2050.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU575AB

Position:	144233.63+192846.9	Epoch-2000 right ascension and declination
WDS-ID:	14426+1929	WDS designation
Discoverer Code:	HU575AB	Discover designation and components
ADS number:	9352	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	71914	Hipparcos catalog number
V1:	9.77	Magnitude of the primary
V2:	10.05	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU575AB

WDS 6th Orbit including measures of HU575AB

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

Ephemeris of HU575AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.482     25.4
-------------------------
2000.0     0.637    189.9
2001.0     0.660    186.5
2002.0     0.677    183.3
2003.0     0.688    180.3
2004.0     0.692    177.3
2005.0     0.690    174.3
2006.0     0.683    171.3
2007.0     0.669    168.2
2008.0     0.650    164.9
2009.0     0.625    161.5
2010.0     0.596    157.6
2011.0     0.563    153.4
2012.0     0.527    148.6
2013.0     0.489    143.1
2014.0     0.451    136.7
2015.0     0.413    129.1
2016.0     0.380    120.0
2017.0     0.353    109.4
2018.0     0.335     97.3
2019.0     0.329     84.3
2020.0     0.336     71.4
2021.0     0.354     59.3
2022.0     0.380     48.8
2023.0     0.413     39.7
2024.0     0.447     32.0
2025.0     0.482     25.4
2026.0     0.513     19.7
2027.0     0.541     14.6
2028.0     0.563      9.9
2029.0     0.578      5.6
2030.0     0.586      1.4
2031.0     0.586    357.3
2032.0     0.578    353.1
2033.0     0.561    348.7
2034.0     0.537    344.0
2035.0     0.507    338.8
2036.0     0.471    332.8
2037.0     0.432    325.9
2038.0     0.393    317.5
2039.0     0.357    307.4
2040.0     0.327    295.1
2041.0     0.309    281.0
2042.0     0.307    265.9
2043.0     0.320    251.3
2044.0     0.347    238.5
2045.0     0.382    227.7
2046.0     0.424    218.9
2047.0     0.467    211.8
2048.0     0.509    205.8
2049.0     0.549    200.7

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.