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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:25:27

Orbital Elements for A2003

WDS:	A2003	WDS ID/Discoverer
P:	82.720	Orbital period (years)
a:	0.197	Semi-major axis (arcseconds)
i:	72.4	Inclination (degrees)
Ω:	133.0	Longitude of ascending node (degrees)
T:	2004.870	Epoch of periastron passage (year)
e:	0.109	Eccentricity
ω:	61.7	Longitude of periastron (degrees)
Start-Year:	1984.0	Year
End-Year:	2066.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2003

Position:	010217.55+055159.9	Epoch-2000 right ascension and declination
WDS-ID:	01023+0552	WDS designation
Discoverer Code:	A2003	Discover designation and components
ADS number:	854	Aitken Double Star catalog
HD number:	6094	HD catalog number
Hipparcos number:	4841	Hipparcos catalog number
V1:	10.30	Magnitude of the primary
V2:	9.32	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1998	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2003

WDS 6th Orbit including measures of A2003

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

Ephemeris of A2003

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.189    307.3
-------------------------
1984.0     0.155    118.0
1985.0     0.162    120.1
1986.0     0.168    121.9
1987.0     0.173    123.7
1988.0     0.178    125.3
1989.0     0.181    126.9
1990.0     0.184    128.4
1991.0     0.186    129.9
1992.0     0.186    131.3
1993.0     0.185    132.8
1994.0     0.183    134.3
1995.0     0.180    135.8
1996.0     0.176    137.4
1997.0     0.171    139.1
1998.0     0.164    140.9
1999.0     0.157    142.9
2000.0     0.148    145.1
2001.0     0.138    147.6
2002.0     0.128    150.4
2003.0     0.117    153.8
2004.0     0.106    157.9
2005.0     0.094    163.1
2006.0     0.082    169.6
2007.0     0.072    178.2
2008.0     0.063    189.6
2009.0     0.056    204.1
2010.0     0.054    221.2
2011.0     0.056    238.4
2012.0     0.062    253.2
2013.0     0.071    264.9
2014.0     0.081    273.8
2015.0     0.093    280.5
2016.0     0.105    285.7
2017.0     0.117    289.8
2018.0     0.128    293.2
2019.0     0.139    296.1
2020.0     0.149    298.5
2021.0     0.159    300.7
2022.0     0.168    302.6
2023.0     0.176    304.3
2024.0     0.183    305.8
2025.0     0.189    307.3
2026.0     0.195    308.7
2027.0     0.199    310.0
2028.0     0.202    311.3
2029.0     0.205    312.5
2030.0     0.206    313.7
2031.0     0.206    314.9
2032.0     0.206    316.1
2033.0     0.204    317.3
2034.0     0.202    318.5
2035.0     0.199    319.8
2036.0     0.195    321.1
2037.0     0.190    322.4
2038.0     0.185    323.9
2039.0     0.179    325.4
2040.0     0.172    327.1
2041.0     0.164    328.9
2042.0     0.157    330.8
2043.0     0.148    333.0
2044.0     0.139    335.5
2045.0     0.130    338.3
2046.0     0.121    341.5
2047.0     0.112    345.3
2048.0     0.102    349.7
2049.0     0.093    355.0
2050.0     0.085      1.4
2051.0     0.078      9.2
2052.0     0.071     18.3
2053.0     0.067     29.0
2054.0     0.065     40.6
2055.0     0.066     52.6
2056.0     0.069     63.9
2057.0     0.074     73.9
2058.0     0.080     82.5
2059.0     0.088     89.6
2060.0     0.097     95.6
2061.0     0.106    100.5
2062.0     0.115    104.7
2063.0     0.124    108.3
2064.0     0.133    111.3
2065.0     0.141    114.0

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.