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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:03:32

Orbital Elements for HDS603

WDS:	HDS603	WDS ID/Discoverer
P:	90.000	Orbital period (years)
a:	0.129	Semi-major axis (arcseconds)
i:	35.0	Inclination (degrees)
Ω:	52.4	Longitude of ascending node (degrees)
T:	2014.090	Epoch of periastron passage (year)
e:	0.567	Eccentricity
ω:	118.1	Longitude of periastron (degrees)
Start-Year:	1980.0	Year
End-Year:	2070.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS603

Position:	044056.10-423003.6	Epoch-2000 right ascension and declination
WDS-ID:	04409-4230	WDS designation
Discoverer Code:	HDS603	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	29919	HD catalog number
Hipparcos number:	21794	Hipparcos catalog number
V1:	9.24	Magnitude of the primary
V2:	10.37	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS603

WDS 6th Orbit including measures of HDS603

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

Ephemeris of HDS603

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.099    276.0
-------------------------
1980.0     0.176     11.3
1981.0     0.175     12.7
1982.0     0.174     14.2
1983.0     0.173     15.7
1984.0     0.172     17.2
1985.0     0.171     18.7
1986.0     0.170     20.3
1987.0     0.168     21.9
1988.0     0.166     23.5
1989.0     0.164     25.1
1990.0     0.162     26.8
1991.0     0.160     28.5
1992.0     0.157     30.3
1993.0     0.154     32.2
1994.0     0.151     34.1
1995.0     0.148     36.1
1996.0     0.144     38.2
1997.0     0.141     40.4
1998.0     0.137     42.7
1999.0     0.132     45.2
2000.0     0.127     47.9
2001.0     0.122     50.8
2002.0     0.117     53.9
2003.0     0.111     57.4
2004.0     0.105     61.3
2005.0     0.098     65.6
2006.0     0.091     70.7
2007.0     0.084     76.6
2008.0     0.076     83.6
2009.0     0.068     92.3
2010.0     0.061    103.2
2011.0     0.054    116.9
2012.0     0.049    133.9
2013.0     0.047    153.6
2014.0     0.048    173.7
2015.0     0.052    192.0
2016.0     0.057    207.4
2017.0     0.062    220.1
2018.0     0.068    230.7
2019.0     0.073    239.6
2020.0     0.078    247.4
2021.0     0.083    254.3
2022.0     0.087    260.5
2023.0     0.092    266.1
2024.0     0.095    271.3
2025.0     0.099    276.0
2026.0     0.103    280.4
2027.0     0.106    284.5
2028.0     0.109    288.4
2029.0     0.113    292.0
2030.0     0.116    295.5
2031.0     0.119    298.7
2032.0     0.122    301.8
2033.0     0.125    304.8
2034.0     0.128    307.6
2035.0     0.130    310.3
2036.0     0.133    312.9
2037.0     0.136    315.4
2038.0     0.138    317.7
2039.0     0.141    320.1
2040.0     0.143    322.3
2041.0     0.146    324.4
2042.0     0.148    326.5
2043.0     0.150    328.5
2044.0     0.152    330.5
2045.0     0.154    332.4
2046.0     0.156    334.3
2047.0     0.158    336.1
2048.0     0.160    337.9
2049.0     0.162    339.6
2050.0     0.163    341.3
2051.0     0.165    342.9
2052.0     0.167    344.6
2053.0     0.168    346.2
2054.0     0.169    347.8
2055.0     0.170    349.3
2056.0     0.172    350.9
2057.0     0.173    352.4
2058.0     0.173    353.9
2059.0     0.174    355.4
2060.0     0.175    356.8
2061.0     0.176    358.3
2062.0     0.176    359.8
2063.0     0.176      1.2
2064.0     0.177      2.6
2065.0     0.177      4.1
2066.0     0.177      5.5
2067.0     0.177      6.9
2068.0     0.177      8.4
2069.0     0.176      9.8

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.