Double Star Calculator - Orbit

Orbital Elements for A1013

WDS:	A1013	WDS ID/Discoverer
P:	126.240	Orbital period (years)
a:	0.289	Semi-major axis (arcseconds)
i:	34.5	Inclination (degrees)
Ω:	91.9	Longitude of ascending node (degrees)
T:	1981.830	Epoch of periastron passage (year)
e:	0.766	Eccentricity
ω:	51.0	Longitude of periastron (degrees)
Start-Year:	1961.88	Year
End-Year:	2088.12	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1013
Position:	044317.76+593116.4	Epoch-2000 right ascension and declination
WDS-ID:	04433+5931	WDS designation
Discoverer Code:	A1013	Discover designation and components
ADS number:	3391	Aitken Double Star catalog
HD number:	29606	HD catalog number
Hipparcos number:	21966	Hipparcos catalog number
V1:	7.25	Magnitude of the primary
V2:	7.42	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1989	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Doc1990c	Reference

Double Star Orbit for A1013

WDS 6th Orbit including measures of A1013

-- 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 A1013

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.447   306.28
--------------------------
1961.88    0.271   355.73
1962.88    0.262   357.51
1963.88    0.254   359.41
1964.88    0.245     1.43
1965.88    0.236     3.61
1966.88    0.227     5.96
1967.88    0.218     8.52
1968.88    0.208    11.31
1969.88    0.198    14.37
1970.88    0.188    17.76
1971.88    0.177    21.54
1972.88    0.167    25.81
1973.88    0.156    30.66
1974.88    0.145    36.25
1975.88    0.133    42.80
1976.88    0.121    50.59
1977.88    0.109    60.09
1978.88    0.097    72.01
1979.88    0.084    87.60
1980.88    0.071   109.02
1981.88    0.060   139.12
1982.88    0.060   175.14
1983.88    0.072   205.00
1984.88    0.090   224.57
1985.88    0.110   237.31
1986.88    0.129   246.17
1987.88    0.148   252.75
1988.88    0.166   257.89
1989.88    0.182   262.07
1990.88    0.198   265.56
1991.88    0.213   268.56
1992.88    0.227   271.18
1993.88    0.240   273.50
1994.88    0.252   275.58
1995.88    0.264   277.48
1996.88    0.275   279.21
1997.88    0.286   280.81
1998.88    0.296   282.30
1999.88    0.306   283.69
2000.88    0.315   285.00
2001.88    0.324   286.24
2002.88    0.333   287.41
2003.88    0.341   288.52
2004.88    0.348   289.58
2005.88    0.356   290.60
2006.88    0.363   291.58
2007.88    0.369   292.52
2008.88    0.376   293.43
2009.88    0.382   294.31
2010.88    0.388   295.16
2011.88    0.393   295.99
2012.88    0.399   296.79
2013.88    0.404   297.58
2014.88    0.408   298.34
2015.88    0.413   299.09
2016.88    0.417   299.83
2017.88    0.421   300.54
2018.88    0.425   301.25
2019.88    0.429   301.94
2020.88    0.432   302.62
2021.88    0.435   303.29
2022.88    0.438   303.96
2023.88    0.441   304.61
2024.88    0.444   305.25
2025.88    0.446   305.89
2026.88    0.448   306.52
2027.88    0.450   307.15
2028.88    0.452   307.77
2029.88    0.454   308.38
2030.88    0.455   308.99
2031.88    0.457   309.60
2032.88    0.458   310.20
2033.88    0.459   310.80
2034.88    0.459   311.40
2035.88    0.460   312.00
2036.88    0.461   312.60
2037.88    0.461   313.19
2038.88    0.461   313.78
2039.88    0.461   314.38
2040.88    0.461   314.97
2041.88    0.460   315.57
2042.88    0.460   316.16
2043.88    0.459   316.76
2044.88    0.458   317.36
2045.88    0.457   317.96
2046.88    0.456   318.57
2047.88    0.455   319.18
2048.88    0.453   319.79
2049.88    0.452   320.40
2050.88    0.450   321.02
2051.88    0.448   321.65
2052.88    0.446   322.28
2053.88    0.444   322.92
2054.88    0.442   323.56
2055.88    0.439   324.21
2056.88    0.436   324.87
2057.88    0.434   325.54
2058.88    0.431   326.21
2059.88    0.427   326.90
2060.88    0.424   327.59
2061.88    0.421   328.30
2062.88    0.417   329.02
2063.88    0.413   329.75
2064.88    0.409   330.50
2065.88    0.405   331.26
2066.88    0.401   332.03
2067.88    0.397   332.82
2068.88    0.392   333.63
2069.88    0.388   334.46
2070.88    0.383   335.32
2071.88    0.378   336.19
2072.88    0.372   337.09
2073.88    0.367   338.01
2074.88    0.361   338.96
2075.88    0.356   339.94
2076.88    0.350   340.95
2077.88    0.344   342.00
2078.88    0.338   343.09
2079.88    0.331   344.22
2080.88    0.324   345.39
2081.88    0.318   346.62
2082.88    0.311   347.90
2083.88    0.303   349.23
2084.88    0.296   350.64
2085.88    0.288   352.12
2086.88    0.281   353.68
2087.88    0.273   355.32

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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.

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Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 15:29:20