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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:34:07

Orbital Elements for HDS296

WDS:	HDS296	WDS ID/Discoverer
P:	75.300	Orbital period (years)
a:	0.175	Semi-major axis (arcseconds)
i:	74.2	Inclination (degrees)
Ω:	100.9	Longitude of ascending node (degrees)
T:	2023.800	Epoch of periastron passage (year)
e:	0.4	Eccentricity
ω:	41.3	Longitude of periastron (degrees)
Start-Year:	1988.0	Year
End-Year:	2062.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS296

Position:	021333.55-572041.9	Epoch-2000 right ascension and declination
WDS-ID:	02136-5721	WDS designation
Discoverer Code:	HDS296	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	13096	HD catalog number
Hipparcos number:	10362	Hipparcos catalog number
V1:	8.85	Magnitude of the primary
V2:	10.34	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS296

WDS 6th Orbit including measures of HDS296

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

Ephemeris of HDS296

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.064    122.7
-------------------------
1988.0     0.178    296.4
1989.0     0.171    297.6
1990.0     0.164    298.8
1991.0     0.157    300.3
1992.0     0.150    301.8
1993.0     0.142    303.5
1994.0     0.134    305.5
1995.0     0.125    307.7
1996.0     0.117    310.2
1997.0     0.108    313.1
1998.0     0.100    316.4
1999.0     0.091    320.5
2000.0     0.083    325.3
2001.0     0.075    331.2
2002.0     0.068    338.4
2003.0     0.062    347.1
2004.0     0.057    357.5
2005.0     0.055      9.3
2006.0     0.054     21.7
2007.0     0.056     33.9
2008.0     0.060     44.9
2009.0     0.065     54.3
2010.0     0.072     62.2
2011.0     0.079     68.7
2012.0     0.086     74.1
2013.0     0.093     78.7
2014.0     0.100     82.6
2015.0     0.106     86.1
2016.0     0.111     89.2
2017.0     0.114     92.1
2018.0     0.116     94.8
2019.0     0.116     97.5
2020.0     0.114    100.2
2021.0     0.109    103.2
2022.0     0.101    106.5
2023.0     0.091    110.4
2024.0     0.078    115.5
2025.0     0.064    122.7
2026.0     0.049    134.3
2027.0     0.037    154.6
2028.0     0.032    187.5
2029.0     0.037    220.1
2030.0     0.050    240.0
2031.0     0.066    251.1
2032.0     0.082    258.0
2033.0     0.097    262.6
2034.0     0.112    265.9
2035.0     0.126    268.5
2036.0     0.139    270.6
2037.0     0.151    272.4
2038.0     0.161    273.9
2039.0     0.171    275.2
2040.0     0.180    276.4
2041.0     0.188    277.4
2042.0     0.195    278.4
2043.0     0.201    279.4
2044.0     0.207    280.2
2045.0     0.211    281.1
2046.0     0.215    281.9
2047.0     0.218    282.7
2048.0     0.220    283.4
2049.0     0.221    284.2
2050.0     0.222    284.9
2051.0     0.222    285.7
2052.0     0.221    286.4
2053.0     0.220    287.2
2054.0     0.219    287.9
2055.0     0.216    288.7
2056.0     0.213    289.5
2057.0     0.210    290.3
2058.0     0.206    291.1
2059.0     0.202    292.0
2060.0     0.197    292.9
2061.0     0.192    293.9

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.