Double Star Calculator - Orbit

Orbital Elements for A803
WDS: A803 WDS ID/Discoverer
P: 247.630 Orbital period (years)
a: 0.367 Semi-major axis (arcseconds)
i: 68.6 Inclination (degrees)
Ω: 151.2 Longitude of ascending node (degrees)
T: 2053.720 Epoch of periastron passage (year)
e: 0.392 Eccentricity
ω: 243.0 Longitude of periastron (degrees)
Start-Year: 1901.185 Year
End-Year: 2148.815 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A803
Position: 001814.70+725648.4 Epoch-2000 right ascension and declination
WDS-ID: 00182+7257 WDS designation
Discoverer Code: A803 Discover designation and components
ADS number: 243 Aitken Double Star catalog
HD number: 1360 HD catalog number
Hipparcos number: 1461 Hipparcos catalog number
V1: 8.10 Magnitude of the primary
V2: 8.76 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1998 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: Cve2006e Reference

Double Star Orbit for A803



WDS 6th Orbit including measures of A803

-- 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 A803
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.280   324.49
--------------------------
1901.18    0.381   169.78
1902.18    0.379   170.23
1903.18    0.376   170.69
1904.18    0.373   171.16
1905.18    0.370   171.64
1906.18    0.368   172.12
1907.18    0.365   172.61
1908.18    0.362   173.11
1909.18    0.359   173.61
1910.18    0.356   174.13
1911.18    0.353   174.65
1912.18    0.349   175.19
1913.18    0.346   175.73
1914.18    0.343   176.29
1915.18    0.339   176.85
1916.18    0.336   177.43
1917.18    0.332   178.01
1918.18    0.329   178.62
1919.18    0.325   179.23
1920.18    0.322   179.86
1921.18    0.318   180.50
1922.18    0.315   181.16
1923.18    0.311   181.83
1924.18    0.307   182.52
1925.18    0.303   183.22
1926.18    0.300   183.95
1927.18    0.296   184.69
1928.18    0.292   185.45
1929.18    0.288   186.23
1930.18    0.284   187.03
1931.18    0.280   187.86
1932.18    0.276   188.71
1933.18    0.273   189.58
1934.18    0.269   190.48
1935.18    0.265   191.40
1936.18    0.261   192.35
1937.18    0.257   193.33
1938.18    0.253   194.34
1939.18    0.249   195.38
1940.18    0.246   196.46
1941.18    0.242   197.56
1942.18    0.238   198.71
1943.18    0.234   199.88
1944.18    0.231   201.10
1945.18    0.227   202.35
1946.18    0.224   203.65
1947.18    0.220   204.98
1948.18    0.217   206.36
1949.18    0.213   207.78
1950.18    0.210   209.25
1951.18    0.207   210.76
1952.18    0.204   212.32
1953.18    0.201   213.93
1954.18    0.198   215.58
1955.18    0.195   217.28
1956.18    0.193   219.03
1957.18    0.190   220.82
1958.18    0.188   222.66
1959.18    0.186   224.55
1960.18    0.184   226.48
1961.18    0.182   228.45
1962.18    0.180   230.46
1963.18    0.178   232.50
1964.18    0.177   234.58
1965.18    0.176   236.69
1966.18    0.175   238.83
1967.18    0.174   240.98
1968.18    0.174   243.15
1969.18    0.173   245.34
1970.18    0.173   247.53
1971.18    0.173   249.72
1972.18    0.173   251.91
1973.18    0.174   254.10
1974.18    0.174   256.27
1975.18    0.175   258.42
1976.18    0.176   260.55
1977.18    0.177   262.65
1978.18    0.179   264.72
1979.18    0.180   266.76
1980.18    0.182   268.77
1981.18    0.184   270.73
1982.18    0.186   272.66
1983.18    0.188   274.54
1984.18    0.190   276.38
1985.18    0.193   278.18
1986.18    0.195   279.93
1987.18    0.198   281.63
1988.18    0.200   283.29
1989.18    0.203   284.91
1990.18    0.206   286.48
1991.18    0.209   288.00
1992.18    0.212   289.49
1993.18    0.215   290.93
1994.18    0.218   292.34
1995.18    0.221   293.70
1996.18    0.224   295.03
1997.18    0.227   296.32
1998.18    0.230   297.58
1999.18    0.233   298.80
2000.18    0.236   300.00
2001.18    0.239   301.16
2002.18    0.242   302.29
2003.18    0.245   303.39
2004.18    0.248   304.47
2005.18    0.251   305.53
2006.18    0.254   306.56
2007.18    0.257   307.56
2008.18    0.259   308.55
2009.18    0.262   309.52
2010.18    0.264   310.47
2011.18    0.267   311.40
2012.18    0.269   312.32
2013.18    0.271   313.22
2014.18    0.273   314.11
2015.18    0.275   314.99
2016.18    0.276   315.85
2017.18    0.278   316.71
2018.18    0.279   317.56
2019.18    0.280   318.40
2020.18    0.281   319.24
2021.18    0.281   320.07
2022.18    0.282   320.90
2023.18    0.282   321.73
2024.18    0.282   322.56
2025.18    0.281   323.39
2026.18    0.281   324.22
2027.18    0.280   325.06
2028.18    0.278   325.91
2029.18    0.277   326.76
2030.18    0.275   327.63
2031.18    0.272   328.50
2032.18    0.270   329.40
2033.18    0.267   330.31
2034.18    0.264   331.24
2035.18    0.260   332.20
2036.18    0.256   333.19
2037.18    0.251   334.22
2038.18    0.246   335.28
2039.18    0.241   336.39
2040.18    0.235   337.55
2041.18    0.229   338.77
2042.18    0.222   340.07
2043.18    0.215   341.44
2044.18    0.208   342.91
2045.18    0.200   344.49
2046.18    0.192   346.20
2047.18    0.184   348.07
2048.18    0.175   350.11
2049.18    0.166   352.38
2050.18    0.157   354.90
2051.18    0.148   357.74
2052.18    0.138     0.96
2053.18    0.129     4.63
2054.18    0.121     8.84
2055.18    0.112    13.71
2056.18    0.104    19.34
2057.18    0.097    25.83
2058.18    0.092    33.23
2059.18    0.087    41.50
2060.18    0.085    50.45
2061.18    0.084    59.75
2062.18    0.085    68.97
2063.18    0.088    77.71
2064.18    0.093    85.69
2065.18    0.100    92.76
2066.18    0.107    98.93
2067.18    0.115   104.26
2068.18    0.124   108.85
2069.18    0.133   112.82
2070.18    0.143   116.27
2071.18    0.153   119.28
2072.18    0.162   121.93
2073.18    0.172   124.28
2074.18    0.182   126.37
2075.18    0.192   128.26
2076.18    0.201   129.96
2077.18    0.211   131.51
2078.18    0.220   132.92
2079.18    0.229   134.23
2080.18    0.238   135.44
2081.18    0.247   136.56
2082.18    0.255   137.60
2083.18    0.263   138.58
2084.18    0.271   139.50
2085.18    0.279   140.37
2086.18    0.286   141.19
2087.18    0.294   141.98
2088.18    0.301   142.72
2089.18    0.307   143.43
2090.18    0.314   144.11
2091.18    0.320   144.77
2092.18    0.326   145.40
2093.18    0.332   146.01
2094.18    0.338   146.59
2095.18    0.343   147.16
2096.18    0.348   147.71
2097.18    0.353   148.25
2098.18    0.358   148.77
2099.18    0.362   149.28
2100.18    0.366   149.77
2101.18    0.370   150.26
2102.18    0.374   150.73
2103.18    0.378   151.19
2104.18    0.381   151.65
2105.18    0.384   152.10
2106.18    0.388   152.54
2107.18    0.390   152.97
2108.18    0.393   153.40
2109.18    0.396   153.83
2110.18    0.398   154.24
2111.18    0.400   154.66
2112.18    0.402   155.06
2113.18    0.404   155.47
2114.18    0.405   155.87
2115.18    0.407   156.27
2116.18    0.408   156.66
2117.18    0.409   157.06
2118.18    0.410   157.45
2119.18    0.411   157.84
2120.18    0.412   158.23
2121.18    0.413   158.61
2122.18    0.413   159.00
2123.18    0.413   159.38
2124.18    0.413   159.77
2125.18    0.413   160.15
2126.18    0.413   160.54
2127.18    0.413   160.92
2128.18    0.413   161.31
2129.18    0.412   161.69
2130.18    0.412   162.08
2131.18    0.411   162.47
2132.18    0.410   162.86
2133.18    0.409   163.25
2134.18    0.408   163.64
2135.18    0.407   164.04
2136.18    0.406   164.44
2137.18    0.404   164.84
2138.18    0.403   165.24
2139.18    0.401   165.65
2140.18    0.399   166.06
2141.18    0.398   166.47
2142.18    0.396   166.89
2143.18    0.394   167.31
2144.18    0.392   167.74
2145.18    0.390   168.17
2146.18    0.387   168.61
2147.18    0.385   169.05
2148.18    0.383   169.49






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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 14:38:12



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