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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:45:34

Orbital Elements for A2593AB

WDS:	A2593AB	WDS ID/Discoverer
P:	73.990	Orbital period (years)
a:	0.27	Semi-major axis (arcseconds)
i:	123.4	Inclination (degrees)
Ω:	167.6	Longitude of ascending node (degrees)
T:	1989.460	Epoch of periastron passage (year)
e:	0.026	Eccentricity
ω:	61.9	Longitude of periastron (degrees)
Start-Year:	1989.0	Year
End-Year:	2061.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2593AB

Position:	172043.07-070623.8	Epoch-2000 right ascension and declination
WDS-ID:	17207-0706	WDS designation
Discoverer Code:	A2593AB	Discover designation and components
ADS number:	10480	Aitken Double Star catalog
HD number:	156952	HD catalog number
Hipparcos number:	84866	Hipparcos catalog number
V1:	9.11	Magnitude of the primary
V2:	10.84	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2013	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2593AB

WDS 6th Orbit including measures of A2593AB

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

Ephemeris of A2593AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.202    309.2
-------------------------
1989.0     0.183    124.5
1990.0     0.173    118.3
1991.0     0.163    111.4
1992.0     0.156    103.7
1993.0     0.150     95.3
1994.0     0.146     86.4
1995.0     0.145     77.2
1996.0     0.147     68.0
1997.0     0.151     59.1
1998.0     0.157     50.9
1999.0     0.165     43.4
2000.0     0.175     36.6
2001.0     0.185     30.6
2002.0     0.196     25.2
2003.0     0.207     20.4
2004.0     0.217     16.0
2005.0     0.227     12.1
2006.0     0.237      8.4
2007.0     0.245      5.1
2008.0     0.253      1.9
2009.0     0.259    359.0
2010.0     0.265    356.1
2011.0     0.269    353.4
2012.0     0.272    350.7
2013.0     0.273    348.1
2014.0     0.273    345.5
2015.0     0.272    342.9
2016.0     0.269    340.2
2017.0     0.266    337.5
2018.0     0.261    334.6
2019.0     0.255    331.7
2020.0     0.248    328.6
2021.0     0.240    325.3
2022.0     0.231    321.8
2023.0     0.221    318.0
2024.0     0.212    313.8
2025.0     0.202    309.2
2026.0     0.192    304.2
2027.0     0.182    298.6
2028.0     0.173    292.4
2029.0     0.166    285.6
2030.0     0.159    278.2
2031.0     0.155    270.3
2032.0     0.152    262.0
2033.0     0.152    253.6
2034.0     0.154    245.2
2035.0     0.158    237.2
2036.0     0.164    229.7
2037.0     0.172    222.8
2038.0     0.180    216.5
2039.0     0.190    210.8
2040.0     0.199    205.6
2041.0     0.209    201.0
2042.0     0.219    196.7
2043.0     0.228    192.8
2044.0     0.236    189.2
2045.0     0.244    185.8
2046.0     0.251    182.6
2047.0     0.257    179.6
2048.0     0.261    176.7
2049.0     0.264    173.8
2050.0     0.266    171.1
2051.0     0.267    168.3
2052.0     0.266    165.6
2053.0     0.264    162.8
2054.0     0.260    159.9
2055.0     0.255    157.0
2056.0     0.249    153.9
2057.0     0.242    150.7
2058.0     0.233    147.2
2059.0     0.224    143.5
2060.0     0.214    139.4

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.