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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:14:57

Orbital Elements for JNN39AA,AB

WDS:	JNN39AA,AB	WDS ID/Discoverer
P:	87.000	Orbital period (years)
a:	0.537	Semi-major axis (arcseconds)
i:	64.5	Inclination (degrees)
Ω:	133.7	Longitude of ascending node (degrees)
T:	2019.530	Epoch of periastron passage (year)
e:	0.8	Eccentricity
ω:	48.7	Longitude of periastron (degrees)
Start-Year:	1982.0	Year
End-Year:	2068.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JNN39AA,AB

Position:	053204.50-030529.3	Epoch-2000 right ascension and declination
WDS-ID:	05321-0305	WDS designation
Discoverer Code:	JNN39AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.8 r	Magnitude of the primary
V2:	11.8 r	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:	n	Flags

Double Star Orbit for JNN39AA,AB

WDS 6th Orbit including measures of JNN39AA,AB

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

Ephemeris of JNN39AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.344    310.4
-------------------------
1982.0     0.658    343.7
1983.0     0.648    344.4
1984.0     0.637    345.2
1985.0     0.625    346.0
1986.0     0.613    346.8
1987.0     0.601    347.6
1988.0     0.588    348.5
1989.0     0.574    349.4
1990.0     0.560    350.3
1991.0     0.546    351.4
1992.0     0.531    352.4
1993.0     0.516    353.5
1994.0     0.500    354.7
1995.0     0.484    356.0
1996.0     0.467    357.4
1997.0     0.450    358.8
1998.0     0.433      0.4
1999.0     0.415      2.1
2000.0     0.397      4.0
2001.0     0.379      6.0
2002.0     0.361      8.3
2003.0     0.342     10.8
2004.0     0.323     13.6
2005.0     0.304     16.7
2006.0     0.285     20.3
2007.0     0.267     24.3
2008.0     0.249     29.0
2009.0     0.232     34.3
2010.0     0.216     40.5
2011.0     0.201     47.6
2012.0     0.188     55.8
2013.0     0.178     65.0
2014.0     0.171     75.1
2015.0     0.165     86.1
2016.0     0.162     97.6
2017.0     0.157    109.6
2018.0     0.145    122.9
2019.0     0.111    141.3
2020.0     0.054    195.2
2021.0     0.095    276.4
2022.0     0.170    295.4
2023.0     0.237    303.0
2024.0     0.295    307.3
2025.0     0.344    310.4
2026.0     0.388    312.7
2027.0     0.427    314.5
2028.0     0.462    316.1
2029.0     0.494    317.4
2030.0     0.522    318.6
2031.0     0.548    319.7
2032.0     0.572    320.7
2033.0     0.593    321.6
2034.0     0.613    322.4
2035.0     0.631    323.2
2036.0     0.647    324.0
2037.0     0.661    324.7
2038.0     0.675    325.4
2039.0     0.687    326.1
2040.0     0.698    326.7
2041.0     0.707    327.3
2042.0     0.716    327.9
2043.0     0.724    328.5
2044.0     0.730    329.1
2045.0     0.736    329.7
2046.0     0.741    330.3
2047.0     0.745    330.8
2048.0     0.748    331.4
2049.0     0.750    331.9
2050.0     0.752    332.5
2051.0     0.753    333.0
2052.0     0.753    333.6
2053.0     0.752    334.1
2054.0     0.751    334.6
2055.0     0.749    335.2
2056.0     0.746    335.7
2057.0     0.743    336.3
2058.0     0.739    336.9
2059.0     0.734    337.4
2060.0     0.729    338.0
2061.0     0.724    338.6
2062.0     0.717    339.2
2063.0     0.711    339.8
2064.0     0.703    340.4
2065.0     0.695    341.0
2066.0     0.687    341.7
2067.0     0.678    342.3

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.