Double Star Calculator - Orbit

Orbital Elements for JNN39AA,AB

WDS:	JNN39AA,AB	WDS ID/Discoverer
P:	150.000	Orbital period (years)
a:	0.7899	Semi-major axis (arcseconds)
i:	66.5	Inclination (degrees)
Ω:	132.8	Longitude of ascending node (degrees)
T:	2019.445	Epoch of periastron passage (year)
e:	0.859	Eccentricity
ω:	44.8	Longitude of periastron (degrees)
Start-Year:	1950.0	Year
End-Year:	2100.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JNN39AA,AB
Position:	053204.51-030530.0	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:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2024c	Reference

Double Star Orbit for JNN39AA,AB

WDS 6th Orbit including measures of JNN39AA,AB

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

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of JNN39AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.440   310.03
--------------------------
1950.00    1.088   335.79
1951.00    1.082   336.05
1952.00    1.075   336.32
1953.00    1.067   336.58
1954.00    1.060   336.85
1955.00    1.052   337.13
1956.00    1.044   337.40
1957.00    1.036   337.69
1958.00    1.027   337.97
1959.00    1.018   338.27
1960.00    1.009   338.57
1961.00    0.999   338.87
1962.00    0.990   339.18
1963.00    0.980   339.49
1964.00    0.969   339.81
1965.00    0.959   340.14
1966.00    0.948   340.48
1967.00    0.937   340.82
1968.00    0.925   341.18
1969.00    0.914   341.54
1970.00    0.902   341.91
1971.00    0.890   342.29
1972.00    0.877   342.68
1973.00    0.864   343.09
1974.00    0.851   343.50
1975.00    0.838   343.93
1976.00    0.824   344.37
1977.00    0.810   344.83
1978.00    0.796   345.30
1979.00    0.782   345.79
1980.00    0.767   346.30
1981.00    0.752   346.83
1982.00    0.737   347.39
1983.00    0.721   347.96
1984.00    0.705   348.56
1985.00    0.689   349.19
1986.00    0.673   349.85
1987.00    0.656   350.54
1988.00    0.639   351.27
1989.00    0.622   352.04
1990.00    0.604   352.86
1991.00    0.586   353.72
1992.00    0.568   354.64
1993.00    0.549   355.62
1994.00    0.531   356.67
1995.00    0.512   357.79
1996.00    0.492   359.01
1997.00    0.473     0.32
1998.00    0.453     1.75
1999.00    0.433     3.30
2000.00    0.413     5.01
2001.00    0.393     6.90
2002.00    0.372     8.99
2003.00    0.352    11.33
2004.00    0.331    13.95
2005.00    0.311    16.92
2006.00    0.290    20.31
2007.00    0.271    24.20
2008.00    0.251    28.70
2009.00    0.233    33.93
2010.00    0.216    40.01
2011.00    0.200    47.10
2012.00    0.187    55.28
2013.00    0.176    64.59
2014.00    0.169    74.91
2015.00    0.164    86.00
2016.00    0.161    97.57
2017.00    0.158   109.53
2018.00    0.147   122.53
2019.00    0.112   140.27
2020.00    0.054   193.51
2021.00    0.095   275.08
2022.00    0.174   293.40
2023.00    0.246   300.48
2024.00    0.309   304.49
2025.00    0.365   307.19
2026.00    0.416   309.20
2027.00    0.463   310.78
2028.00    0.505   312.09
2029.00    0.545   313.20
2030.00    0.582   314.16
2031.00    0.616   315.02
2032.00    0.648   315.78
2033.00    0.678   316.48
2034.00    0.707   317.11
2035.00    0.734   317.70
2036.00    0.759   318.25
2037.00    0.784   318.76
2038.00    0.807   319.25
2039.00    0.828   319.71
2040.00    0.849   320.14
2041.00    0.869   320.55
2042.00    0.888   320.95
2043.00    0.906   321.33
2044.00    0.923   321.70
2045.00    0.939   322.05
2046.00    0.954   322.39
2047.00    0.969   322.72
2048.00    0.983   323.04
2049.00    0.996   323.35
2050.00    1.009   323.66
2051.00    1.021   323.96
2052.00    1.032   324.25
2053.00    1.043   324.53
2054.00    1.053   324.81
2055.00    1.063   325.08
2056.00    1.072   325.35
2057.00    1.081   325.61
2058.00    1.089   325.87
2059.00    1.097   326.13
2060.00    1.104   326.38
2061.00    1.110   326.63
2062.00    1.117   326.88
2063.00    1.123   327.12
2064.00    1.128   327.36
2065.00    1.133   327.60
2066.00    1.138   327.84
2067.00    1.142   328.07
2068.00    1.146   328.31
2069.00    1.149   328.54
2070.00    1.152   328.77
2071.00    1.155   329.00
2072.00    1.157   329.23
2073.00    1.159   329.46
2074.00    1.160   329.69
2075.00    1.161   329.91
2076.00    1.162   330.14
2077.00    1.163   330.36
2078.00    1.163   330.59
2079.00    1.163   330.82
2080.00    1.162   331.04
2081.00    1.161   331.27
2082.00    1.160   331.50
2083.00    1.159   331.72
2084.00    1.157   331.95
2085.00    1.155   332.18
2086.00    1.153   332.41
2087.00    1.150   332.64
2088.00    1.147   332.87
2089.00    1.144   333.11
2090.00    1.140   333.34
2091.00    1.136   333.58
2092.00    1.132   333.81
2093.00    1.128   334.05
2094.00    1.123   334.29
2095.00    1.118   334.54
2096.00    1.113   334.78
2097.00    1.107   335.03
2098.00    1.101   335.28
2099.00    1.095   335.54

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.

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.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 15:38:20