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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:12:19

Orbital Elements for HDS676

WDS:	HDS676	WDS ID/Discoverer
P:	79.780	Orbital period (years)
a:	0.239	Semi-major axis (arcseconds)
i:	66.5	Inclination (degrees)
Ω:	159.1	Longitude of ascending node (degrees)
T:	2017.470	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	222.8	Longitude of periastron (degrees)
Start-Year:	1986.0	Year
End-Year:	2064.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS676

Position:	050907.53-420107.6	Epoch-2000 right ascension and declination
WDS-ID:	05091-4201	WDS designation
Discoverer Code:	HDS676	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	33562	HD catalog number
Hipparcos number:	23968	Hipparcos catalog number
V1:	8.26	Magnitude of the primary
V2:	8.54	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS676

WDS 6th Orbit including measures of HDS676

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

Ephemeris of HDS676

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.127    134.4
-------------------------
1986.0     0.219    191.4
1987.0     0.210    193.3
1988.0     0.201    195.4
1989.0     0.193    197.7
1990.0     0.183    200.2
1991.0     0.174    203.0
1992.0     0.165    206.1
1993.0     0.157    209.6
1994.0     0.148    213.4
1995.0     0.139    217.7
1996.0     0.132    222.6
1997.0     0.124    228.0
1998.0     0.118    234.1
1999.0     0.113    240.8
2000.0     0.109    248.0
2001.0     0.106    255.8
2002.0     0.105    263.8
2003.0     0.105    271.9
2004.0     0.107    279.8
2005.0     0.110    287.3
2006.0     0.115    294.3
2007.0     0.119    300.8
2008.0     0.125    306.8
2009.0     0.130    312.3
2010.0     0.134    317.4
2011.0     0.137    322.3
2012.0     0.139    326.9
2013.0     0.138    331.6
2014.0     0.135    336.3
2015.0     0.127    341.5
2016.0     0.116    347.5
2017.0     0.101    355.0
2018.0     0.084      5.4
2019.0     0.067     21.3
2020.0     0.055     46.2
2021.0     0.055     77.3
2022.0     0.067    102.3
2023.0     0.085    118.0
2024.0     0.106    127.8
2025.0     0.127    134.4
2026.0     0.147    139.1
2027.0     0.166    142.8
2028.0     0.184    145.7
2029.0     0.200    148.1
2030.0     0.215    150.1
2031.0     0.229    152.0
2032.0     0.242    153.6
2033.0     0.253    155.0
2034.0     0.263    156.3
2035.0     0.273    157.6
2036.0     0.281    158.7
2037.0     0.288    159.8
2038.0     0.294    160.9
2039.0     0.300    161.9
2040.0     0.304    162.9
2041.0     0.308    163.8
2042.0     0.311    164.8
2043.0     0.313    165.7
2044.0     0.315    166.6
2045.0     0.316    167.5
2046.0     0.316    168.4
2047.0     0.316    169.3
2048.0     0.315    170.1
2049.0     0.313    171.1
2050.0     0.311    172.0
2051.0     0.308    172.9
2052.0     0.305    173.8
2053.0     0.302    174.8
2054.0     0.298    175.8
2055.0     0.293    176.8
2056.0     0.288    177.9
2057.0     0.282    179.0
2058.0     0.277    180.1
2059.0     0.270    181.3
2060.0     0.264    182.5
2061.0     0.257    183.9
2062.0     0.249    185.2
2063.0     0.242    186.7

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.