Double Star Calculator - Orbit

Orbital Elements for A313

WDS:	A313	WDS ID/Discoverer
P:	128.510	Orbital period (years)
a:	0.274	Semi-major axis (arcseconds)
i:	133.7	Inclination (degrees)
Ω:	171.5	Longitude of ascending node (degrees)
T:	2014.720	Epoch of periastron passage (year)
e:	0.161	Eccentricity
ω:	245.5	Longitude of periastron (degrees)
Start-Year:	1960.745	Year
End-Year:	2089.255	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A313
Position:	011937.10-051931.3	Epoch-2000 right ascension and declination
WDS-ID:	01196-0520	WDS designation
Discoverer Code:	A313	Discover designation and components
ADS number:	1077	Aitken Double Star catalog
HD number:	8032	HD catalog number
Hipparcos number:	6211	Hipparcos catalog number
V1:	8.97	Magnitude of the primary
V2:	9.71	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Tok2015c	Reference

Double Star Orbit for A313

WDS 6th Orbit including measures of A313

-- 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 A313

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.176   233.11
--------------------------
1960.74    0.217    86.17
1961.74    0.216    83.12
1962.74    0.216    80.05
1963.74    0.215    76.96
1964.74    0.215    73.87
1965.74    0.216    70.78
1966.74    0.216    67.70
1967.74    0.217    64.63
1968.74    0.218    61.59
1969.74    0.219    58.58
1970.74    0.220    55.61
1971.74    0.222    52.67
1972.74    0.224    49.78
1973.74    0.226    46.94
1974.74    0.228    44.14
1975.74    0.230    41.40
1976.74    0.232    38.71
1977.74    0.234    36.07
1978.74    0.237    33.48
1979.74    0.239    30.94
1980.74    0.241    28.45
1981.74    0.243    26.01
1982.74    0.245    23.60
1983.74    0.247    21.24
1984.74    0.249    18.91
1985.74    0.251    16.61
1986.74    0.252    14.34
1987.74    0.253    12.10
1988.74    0.254     9.87
1989.74    0.255     7.66
1990.74    0.255     5.46
1991.74    0.255     3.26
1992.74    0.255     1.07
1993.74    0.255   358.86
1994.74    0.254   356.64
1995.74    0.252   354.40
1996.74    0.251   352.14
1997.74    0.249   349.84
1998.74    0.246   347.50
1999.74    0.243   345.10
2000.74    0.240   342.65
2001.74    0.237   340.13
2002.74    0.233   337.52
2003.74    0.228   334.82
2004.74    0.224   332.01
2005.74    0.219   329.09
2006.74    0.214   326.02
2007.74    0.209   322.81
2008.74    0.203   319.43
2009.74    0.198   315.86
2010.74    0.192   312.09
2011.74    0.187   308.11
2012.74    0.182   303.90
2013.74    0.177   299.46
2014.74    0.173   294.79
2015.74    0.169   289.89
2016.74    0.166   284.78
2017.74    0.163   279.49
2018.74    0.162   274.05
2019.74    0.161   268.53
2020.74    0.161   262.97
2021.74    0.162   257.44
2022.74    0.163   252.00
2023.74    0.166   246.69
2024.74    0.169   241.57
2025.74    0.173   236.66
2026.74    0.177   231.98
2027.74    0.182   227.55
2028.74    0.188   223.37
2029.74    0.194   219.42
2030.74    0.199   215.71
2031.74    0.206   212.21
2032.74    0.212   208.91
2033.74    0.218   205.80
2034.74    0.224   202.86
2035.74    0.230   200.08
2036.74    0.236   197.43
2037.74    0.241   194.91
2038.74    0.247   192.50
2039.74    0.252   190.20
2040.74    0.257   187.98
2041.74    0.261   185.84
2042.74    0.266   183.78
2043.74    0.270   181.78
2044.74    0.273   179.84
2045.74    0.277   177.94
2046.74    0.280   176.09
2047.74    0.282   174.28
2048.74    0.285   172.49
2049.74    0.287   170.74
2050.74    0.289   169.01
2051.74    0.290   167.29
2052.74    0.291   165.59
2053.74    0.292   163.90
2054.74    0.292   162.22
2055.74    0.292   160.54
2056.74    0.292   158.85
2057.74    0.291   157.17
2058.74    0.291   155.48
2059.74    0.290   153.77
2060.74    0.288   152.06
2061.74    0.287   150.32
2062.74    0.285   148.57
2063.74    0.283   146.80
2064.74    0.281   145.00
2065.74    0.279   143.17
2066.74    0.276   141.31
2067.74    0.274   139.41
2068.74    0.271   137.48
2069.74    0.268   135.51
2070.74    0.265   133.49
2071.74    0.262   131.43
2072.74    0.259   129.31
2073.74    0.256   127.15
2074.74    0.253   124.93
2075.74    0.250   122.66
2076.74    0.246   120.33
2077.74    0.243   117.94
2078.74    0.240   115.48
2079.74    0.237   112.97
2080.74    0.234   110.39
2081.74    0.232   107.75
2082.74    0.229   105.05
2083.74    0.227   102.29
2084.74    0.225    99.47
2085.74    0.223    96.60
2086.74    0.221    93.68
2087.74    0.219    90.72
2088.74    0.218    87.71

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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 14:49:20