Double Star Calculator - Orbit

Orbital Elements for A884
WDS: A884 WDS ID/Discoverer
P: 346.000 Orbital period (years)
a: 0.47 Semi-major axis (arcseconds)
i: 123.2 Inclination (degrees)
Ω: 48.9 Longitude of ascending node (degrees)
T: 1831.860 Epoch of periastron passage (year)
e: 0.567 Eccentricity
ω: 102.1 Longitude of periastron (degrees)
Start-Year: 1852.0 Year
End-Year: 2198.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A884
Position: 211320.32+465455.5 Epoch-2000 right ascension and declination
WDS-ID: 21133+4655 WDS designation
Discoverer Code: A884 Discover designation and components
ADS number: 14766 Aitken Double Star catalog
HD number: 202300 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.72 Magnitude of the primary
V2: 9.48 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Lin2020 Reference

Double Star Orbit for A884



WDS 6th Orbit including measures of A884

-- 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 A884
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.449   105.70
--------------------------
1852.00    0.275   231.06
1853.00    0.281   229.72
1854.00    0.287   228.44
1855.00    0.293   227.20
1856.00    0.298   226.02
1857.00    0.303   224.87
1858.00    0.308   223.75
1859.00    0.312   222.67
1860.00    0.316   221.62
1861.00    0.320   220.60
1862.00    0.324   219.60
1863.00    0.328   218.63
1864.00    0.331   217.67
1865.00    0.334   216.74
1866.00    0.338   215.82
1867.00    0.340   214.92
1868.00    0.343   214.03
1869.00    0.346   213.16
1870.00    0.348   212.29
1871.00    0.351   211.45
1872.00    0.353   210.61
1873.00    0.355   209.78
1874.00    0.357   208.96
1875.00    0.358   208.15
1876.00    0.360   207.35
1877.00    0.362   206.55
1878.00    0.363   205.76
1879.00    0.365   204.98
1880.00    0.366   204.20
1881.00    0.367   203.43
1882.00    0.368   202.66
1883.00    0.369   201.90
1884.00    0.370   201.14
1885.00    0.371   200.39
1886.00    0.372   199.64
1887.00    0.373   198.89
1888.00    0.374   198.15
1889.00    0.374   197.41
1890.00    0.375   196.67
1891.00    0.375   195.93
1892.00    0.376   195.20
1893.00    0.376   194.47
1894.00    0.377   193.74
1895.00    0.377   193.01
1896.00    0.378   192.28
1897.00    0.378   191.55
1898.00    0.378   190.83
1899.00    0.378   190.10
1900.00    0.379   189.38
1901.00    0.379   188.66
1902.00    0.379   187.93
1903.00    0.379   187.21
1904.00    0.379   186.49
1905.00    0.379   185.77
1906.00    0.379   185.05
1907.00    0.379   184.33
1908.00    0.379   183.61
1909.00    0.380   182.89
1910.00    0.380   182.17
1911.00    0.380   181.45
1912.00    0.380   180.73
1913.00    0.380   180.01
1914.00    0.379   179.29
1915.00    0.379   178.57
1916.00    0.379   177.85
1917.00    0.379   177.13
1918.00    0.379   176.41
1919.00    0.379   175.69
1920.00    0.379   174.97
1921.00    0.379   174.25
1922.00    0.379   173.53
1923.00    0.379   172.81
1924.00    0.379   172.09
1925.00    0.379   171.37
1926.00    0.379   170.64
1927.00    0.379   169.92
1928.00    0.379   169.20
1929.00    0.379   168.48
1930.00    0.379   167.76
1931.00    0.379   167.04
1932.00    0.379   166.32
1933.00    0.379   165.59
1934.00    0.379   164.87
1935.00    0.379   164.15
1936.00    0.379   163.43
1937.00    0.379   162.71
1938.00    0.379   161.99
1939.00    0.380   161.27
1940.00    0.380   160.55
1941.00    0.380   159.83
1942.00    0.380   159.11
1943.00    0.380   158.40
1944.00    0.380   157.68
1945.00    0.381   156.96
1946.00    0.381   156.25
1947.00    0.381   155.53
1948.00    0.381   154.82
1949.00    0.382   154.11
1950.00    0.382   153.40
1951.00    0.382   152.69
1952.00    0.382   151.98
1953.00    0.383   151.27
1954.00    0.383   150.56
1955.00    0.383   149.85
1956.00    0.384   149.15
1957.00    0.384   148.45
1958.00    0.385   147.75
1959.00    0.385   147.05
1960.00    0.386   146.35
1961.00    0.386   145.65
1962.00    0.387   144.96
1963.00    0.387   144.27
1964.00    0.388   143.58
1965.00    0.388   142.89
1966.00    0.389   142.20
1967.00    0.389   141.52
1968.00    0.390   140.83
1969.00    0.391   140.15
1970.00    0.391   139.47
1971.00    0.392   138.80
1972.00    0.393   138.12
1973.00    0.393   137.45
1974.00    0.394   136.78
1975.00    0.395   136.12
1976.00    0.396   135.45
1977.00    0.396   134.79
1978.00    0.397   134.13
1979.00    0.398   133.48
1980.00    0.399   132.83
1981.00    0.400   132.18
1982.00    0.400   131.53
1983.00    0.401   130.88
1984.00    0.402   130.24
1985.00    0.403   129.60
1986.00    0.404   128.96
1987.00    0.405   128.33
1988.00    0.406   127.70
1989.00    0.407   127.07
1990.00    0.408   126.45
1991.00    0.409   125.83
1992.00    0.410   125.21
1993.00    0.411   124.59
1994.00    0.412   123.98
1995.00    0.413   123.37
1996.00    0.414   122.76
1997.00    0.415   122.16
1998.00    0.416   121.56
1999.00    0.417   120.96
2000.00    0.418   120.36
2001.00    0.419   119.77
2002.00    0.420   119.18
2003.00    0.421   118.60
2004.00    0.422   118.02
2005.00    0.424   117.44
2006.00    0.425   116.86
2007.00    0.426   116.29
2008.00    0.427   115.72
2009.00    0.428   115.15
2010.00    0.429   114.59
2011.00    0.430   114.03
2012.00    0.432   113.47
2013.00    0.433   112.91
2014.00    0.434   112.36
2015.00    0.435   111.81
2016.00    0.436   111.27
2017.00    0.437   110.72
2018.00    0.439   110.18
2019.00    0.440   109.65
2020.00    0.441   109.11
2021.00    0.442   108.58
2022.00    0.443   108.05
2023.00    0.444   107.52
2024.00    0.446   107.00
2025.00    0.447   106.48
2026.00    0.448   105.96
2027.00    0.449   105.45
2028.00    0.450   104.93
2029.00    0.451   104.42
2030.00    0.453   103.92
2031.00    0.454   103.41
2032.00    0.455   102.91
2033.00    0.456   102.41
2034.00    0.457   101.91
2035.00    0.458   101.42
2036.00    0.459   100.92
2037.00    0.460   100.43
2038.00    0.461    99.95
2039.00    0.463    99.46
2040.00    0.464    98.98
2041.00    0.465    98.50
2042.00    0.466    98.02
2043.00    0.467    97.54
2044.00    0.468    97.06
2045.00    0.469    96.59
2046.00    0.470    96.12
2047.00    0.471    95.65
2048.00    0.472    95.19
2049.00    0.473    94.72
2050.00    0.474    94.26
2051.00    0.475    93.80
2052.00    0.475    93.34
2053.00    0.476    92.88
2054.00    0.477    92.42
2055.00    0.478    91.97
2056.00    0.479    91.52
2057.00    0.480    91.06
2058.00    0.480    90.61
2059.00    0.481    90.17
2060.00    0.482    89.72
2061.00    0.483    89.27
2062.00    0.483    88.83
2063.00    0.484    88.39
2064.00    0.485    87.94
2065.00    0.485    87.50
2066.00    0.486    87.06
2067.00    0.486    86.63
2068.00    0.487    86.19
2069.00    0.488    85.75
2070.00    0.488    85.32
2071.00    0.488    84.88
2072.00    0.489    84.45
2073.00    0.489    84.01
2074.00    0.490    83.58
2075.00    0.490    83.15
2076.00    0.490    82.72
2077.00    0.490    82.29
2078.00    0.491    81.86
2079.00    0.491    81.42
2080.00    0.491    80.99
2081.00    0.491    80.56
2082.00    0.491    80.13
2083.00    0.491    79.71
2084.00    0.491    79.28
2085.00    0.491    78.85
2086.00    0.491    78.42
2087.00    0.491    77.99
2088.00    0.491    77.56
2089.00    0.490    77.12
2090.00    0.490    76.69
2091.00    0.490    76.26
2092.00    0.489    75.83
2093.00    0.489    75.40
2094.00    0.488    74.96
2095.00    0.488    74.53
2096.00    0.487    74.09
2097.00    0.487    73.65
2098.00    0.486    73.22
2099.00    0.485    72.78
2100.00    0.484    72.33
2101.00    0.483    71.89
2102.00    0.482    71.45
2103.00    0.481    71.00
2104.00    0.480    70.55
2105.00    0.479    70.10
2106.00    0.478    69.65
2107.00    0.477    69.19
2108.00    0.475    68.74
2109.00    0.474    68.28
2110.00    0.472    67.81
2111.00    0.471    67.35
2112.00    0.469    66.88
2113.00    0.467    66.40
2114.00    0.465    65.93
2115.00    0.463    65.44
2116.00    0.461    64.96
2117.00    0.459    64.47
2118.00    0.457    63.98
2119.00    0.455    63.48
2120.00    0.452    62.97
2121.00    0.450    62.46
2122.00    0.447    61.95
2123.00    0.444    61.42
2124.00    0.441    60.90
2125.00    0.438    60.36
2126.00    0.435    59.82
2127.00    0.432    59.27
2128.00    0.429    58.71
2129.00    0.425    58.14
2130.00    0.422    57.56
2131.00    0.418    56.97
2132.00    0.414    56.37
2133.00    0.410    55.76
2134.00    0.406    55.14
2135.00    0.402    54.50
2136.00    0.397    53.86
2137.00    0.393    53.19
2138.00    0.388    52.51
2139.00    0.383    51.81
2140.00    0.378    51.10
2141.00    0.372    50.36
2142.00    0.367    49.60
2143.00    0.361    48.82
2144.00    0.355    48.01
2145.00    0.349    47.18
2146.00    0.343    46.31
2147.00    0.337    45.42
2148.00    0.330    44.48
2149.00    0.323    43.51
2150.00    0.316    42.49
2151.00    0.309    41.43
2152.00    0.301    40.32
2153.00    0.293    39.14
2154.00    0.285    37.90
2155.00    0.277    36.59
2156.00    0.268    35.20
2157.00    0.260    33.71
2158.00    0.251    32.12
2159.00    0.242    30.41
2160.00    0.232    28.56
2161.00    0.223    26.56
2162.00    0.213    24.38
2163.00    0.203    21.98
2164.00    0.193    19.35
2165.00    0.184    16.43
2166.00    0.174    13.18
2167.00    0.164     9.55
2168.00    0.155     5.47
2169.00    0.146     0.87
2170.00    0.137   355.70
2171.00    0.130   349.89
2172.00    0.123   343.41
2173.00    0.118   336.28
2174.00    0.114   328.60
2175.00    0.113   320.53
2176.00    0.112   312.31
2177.00    0.114   304.21
2178.00    0.118   296.46
2179.00    0.123   289.26
2180.00    0.129   282.69
2181.00    0.136   276.77
2182.00    0.144   271.49
2183.00    0.153   266.78
2184.00    0.162   262.59
2185.00    0.171   258.84
2186.00    0.180   255.47
2187.00    0.189   252.43
2188.00    0.198   249.67
2189.00    0.207   247.15
2190.00    0.216   244.83
2191.00    0.224   242.69
2192.00    0.233   240.71
2193.00    0.240   238.86
2194.00    0.248   237.12
2195.00    0.255   235.48
2196.00    0.262   233.93
2197.00    0.269   232.46






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 18:23:48



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