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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:19:27

Orbital Elements for HDS1922

WDS:	HDS1922	WDS ID/Discoverer
P:	88.400	Orbital period (years)
a:	0.215	Semi-major axis (arcseconds)
i:	110.4	Inclination (degrees)
Ω:	257.2	Longitude of ascending node (degrees)
T:	2003.080	Epoch of periastron passage (year)
e:	0.56	Eccentricity
ω:	72.7	Longitude of periastron (degrees)
Start-Year:	1981.0	Year
End-Year:	2069.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1922

Position:	134143.92-291525.9	Epoch-2000 right ascension and declination
WDS-ID:	13417-2915	WDS designation
Discoverer Code:	HDS1922	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.25	Magnitude of the primary
V2:	10.29	Magnitude of the secondary
Equinox:		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 HDS1922

WDS 6th Orbit including measures of HDS1922

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

Ephemeris of HDS1922

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.223     62.4
-------------------------
1981.0     0.123    304.3
1982.0     0.126    300.8
1983.0     0.129    297.4
1984.0     0.133    294.3
1985.0     0.136    291.3
1986.0     0.139    288.4
1987.0     0.142    285.6
1988.0     0.144    283.0
1989.0     0.147    280.4
1990.0     0.149    277.9
1991.0     0.150    275.5
1992.0     0.150    273.1
1993.0     0.150    270.6
1994.0     0.148    268.2
1995.0     0.146    265.7
1996.0     0.141    263.0
1997.0     0.135    260.2
1998.0     0.126    257.0
1999.0     0.114    253.2
2000.0     0.100    248.5
2001.0     0.082    241.9
2002.0     0.063    231.5
2003.0     0.044    211.3
2004.0     0.034    171.3
2005.0     0.042    129.8
2006.0     0.062    108.8
2007.0     0.083     98.2
2008.0     0.103     91.8
2009.0     0.121     87.5
2010.0     0.137     84.2
2011.0     0.152     81.6
2012.0     0.164     79.4
2013.0     0.175     77.5
2014.0     0.185     75.9
2015.0     0.193     74.3
2016.0     0.200     72.9
2017.0     0.205     71.6
2018.0     0.210     70.3
2019.0     0.214     69.1
2020.0     0.217     68.0
2021.0     0.220     66.8
2022.0     0.222     65.7
2023.0     0.223     64.6
2024.0     0.223     63.5
2025.0     0.223     62.4
2026.0     0.223     61.3
2027.0     0.222     60.2
2028.0     0.221     59.1
2029.0     0.219     58.0
2030.0     0.217     56.9
2031.0     0.215     55.7
2032.0     0.212     54.5
2033.0     0.209     53.3
2034.0     0.206     52.0
2035.0     0.203     50.7
2036.0     0.199     49.4
2037.0     0.195     48.0
2038.0     0.191     46.5
2039.0     0.187     45.0
2040.0     0.183     43.4
2041.0     0.178     41.8
2042.0     0.174     40.0
2043.0     0.169     38.2
2044.0     0.165     36.2
2045.0     0.160     34.2
2046.0     0.156     32.0
2047.0     0.151     29.7
2048.0     0.146     27.2
2049.0     0.142     24.6
2050.0     0.138     21.8
2051.0     0.134     18.8
2052.0     0.130     15.7
2053.0     0.126     12.4
2054.0     0.122      8.8
2055.0     0.119      5.1
2056.0     0.117      1.2
2057.0     0.114    357.1
2058.0     0.112    352.9
2059.0     0.111    348.5
2060.0     0.110    344.1
2061.0     0.109    339.6
2062.0     0.109    335.0
2063.0     0.110    330.5
2064.0     0.111    326.0
2065.0     0.112    321.7
2066.0     0.114    317.5
2067.0     0.117    313.4
2068.0     0.119    309.5

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.