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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:30:18

Orbital Elements for A2320

WDS:	A2320	WDS ID/Discoverer
P:	37.290	Orbital period (years)
a:	0.156	Semi-major axis (arcseconds)
i:	59.2	Inclination (degrees)
Ω:	74.4	Longitude of ascending node (degrees)
T:	1997.490	Epoch of periastron passage (year)
e:	0.711	Eccentricity
ω:	54.2	Longitude of periastron (degrees)
Start-Year:	2007.0	Year
End-Year:	2043.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2320

Position:	014054.30+111713.5	Epoch-2000 right ascension and declination
WDS-ID:	01409+1117	WDS designation
Discoverer Code:	A2320	Discover designation and components
ADS number:	1321	Aitken Double Star catalog
HD number:	10297	HD catalog number
Hipparcos number:	7849	Hipparcos catalog number
V1:	9.7	Magnitude of the primary
V2:	9.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1995	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2320

WDS 6th Orbit including measures of A2320

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

Ephemeris of A2320

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.121    320.8
-------------------------
2007.0     0.198    270.9
2008.0     0.203    273.0
2009.0     0.205    275.1
2010.0     0.207    277.1
2011.0     0.207    279.0
2012.0     0.206    281.0
2013.0     0.204    283.0
2014.0     0.201    285.1
2015.0     0.197    287.2
2016.0     0.192    289.5
2017.0     0.187    291.8
2018.0     0.180    294.3
2019.0     0.173    297.0
2020.0     0.166    300.0
2021.0     0.158    303.2
2022.0     0.149    306.8
2023.0     0.140    310.8
2024.0     0.131    315.5
2025.0     0.121    320.8
2026.0     0.112    327.0
2027.0     0.103    334.3
2028.0     0.094    343.0
2029.0     0.087    353.4
2030.0     0.081      5.5
2031.0     0.076     19.3
2032.0     0.072     34.7
2033.0     0.068     51.9
2034.0     0.055     73.9
2035.0     0.027    131.8
2036.0     0.049    222.8
2037.0     0.087    242.3
2038.0     0.116    250.6
2039.0     0.138    255.8
2040.0     0.156    259.7
2041.0     0.170    262.9
2042.0     0.182    265.6

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.