Double Star Calculator - Orbit

Orbital Elements for A2479

WDS:	A2479	WDS ID/Discoverer
P:	108.000	Orbital period (years)
a:	0.23	Semi-major axis (arcseconds)
i:	46.5	Inclination (degrees)
Ω:	82.0	Longitude of ascending node (degrees)
T:	1961.000	Epoch of periastron passage (year)
e:	0.24	Eccentricity
ω:	341.0	Longitude of periastron (degrees)
Start-Year:	1971.0	Year
End-Year:	2079.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2479
Position:	093738.81+152730.7	Epoch-2000 right ascension and declination
WDS-ID:	09376+1528	WDS designation
Discoverer Code:	A2479	Discover designation and components
ADS number:	7460	Aitken Double Star catalog
HD number:	83289	HD catalog number
Hipparcos number:	47233	Hipparcos catalog number
V1:	9.23	Magnitude of the primary
V2:	9.87	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1977	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Hei1978a	Reference

Double Star Orbit for A2479

WDS 6th Orbit including measures of A2479

-- 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 A2479

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.277   265.91
--------------------------
1971.00    0.173   106.91
1972.00    0.171   110.89
1973.00    0.169   114.95
1974.00    0.167   119.12
1975.00    0.165   123.40
1976.00    0.163   127.78
1977.00    0.161   132.27
1978.00    0.160   136.85
1979.00    0.158   141.51
1980.00    0.158   146.23
1981.00    0.157   150.99
1982.00    0.157   155.75
1983.00    0.158   160.49
1984.00    0.159   165.18
1985.00    0.161   169.78
1986.00    0.163   174.28
1987.00    0.166   178.64
1988.00    0.169   182.86
1989.00    0.172   186.92
1990.00    0.176   190.81
1991.00    0.180   194.53
1992.00    0.184   198.08
1993.00    0.189   201.46
1994.00    0.194   204.68
1995.00    0.199   207.74
1996.00    0.204   210.65
1997.00    0.209   213.43
1998.00    0.214   216.07
1999.00    0.219   218.60
2000.00    0.223   221.01
2001.00    0.228   223.32
2002.00    0.233   225.53
2003.00    0.238   227.66
2004.00    0.242   229.71
2005.00    0.246   231.68
2006.00    0.251   233.59
2007.00    0.254   235.44
2008.00    0.258   237.23
2009.00    0.262   238.97
2010.00    0.265   240.67
2011.00    0.268   242.33
2012.00    0.271   243.96
2013.00    0.273   245.55
2014.00    0.275   247.12
2015.00    0.277   248.67
2016.00    0.279   250.19
2017.00    0.280   251.70
2018.00    0.281   253.20
2019.00    0.282   254.69
2020.00    0.282   256.17
2021.00    0.282   257.65
2022.00    0.282   259.13
2023.00    0.281   260.62
2024.00    0.280   262.11
2025.00    0.279   263.62
2026.00    0.277   265.14
2027.00    0.275   266.68
2028.00    0.273   268.25
2029.00    0.271   269.84
2030.00    0.268   271.47
2031.00    0.264   273.13
2032.00    0.261   274.84
2033.00    0.257   276.60
2034.00    0.253   278.41
2035.00    0.248   280.29
2036.00    0.243   282.24
2037.00    0.238   284.27
2038.00    0.233   286.40
2039.00    0.227   288.62
2040.00    0.221   290.97
2041.00    0.215   293.44
2042.00    0.209   296.05
2043.00    0.203   298.83
2044.00    0.196   301.80
2045.00    0.190   304.96
2046.00    0.183   308.35
2047.00    0.177   311.99
2048.00    0.170   315.90
2049.00    0.164   320.10
2050.00    0.159   324.62
2051.00    0.153   329.47
2052.00    0.149   334.64
2053.00    0.144   340.14
2054.00    0.141   345.93
2055.00    0.138   351.97
2056.00    0.137   358.21
2057.00    0.136     4.56
2058.00    0.136    10.94
2059.00    0.137    17.26
2060.00    0.139    23.45
2061.00    0.141    29.45
2062.00    0.145    35.21
2063.00    0.148    40.71
2064.00    0.152    45.95
2065.00    0.156    50.93
2066.00    0.160    55.67
2067.00    0.163    60.19
2068.00    0.167    64.51
2069.00    0.170    68.67
2070.00    0.172    72.69
2071.00    0.175    76.60
2072.00    0.176    80.43
2073.00    0.177    84.20
2074.00    0.178    87.94
2075.00    0.178    91.67
2076.00    0.177    95.42
2077.00    0.176    99.19
2078.00    0.175   103.02

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 16:19:35