Double Star Calculator - Orbit

Orbital Elements for A844
WDS: A844 WDS ID/Discoverer
P: 253.000 Orbital period (years)
a: 0.24 Semi-major axis (arcseconds)
i: 25.8 Inclination (degrees)
Ω: 170.9 Longitude of ascending node (degrees)
T: 1978.610 Epoch of periastron passage (year)
e: 0.334 Eccentricity
ω: 312.1 Longitude of periastron (degrees)
Start-Year: 1898.5 Year
End-Year: 2151.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A844
Position: 051624.69-013831.3 Epoch-2000 right ascension and declination
WDS-ID: 05164-0139 WDS designation
Discoverer Code: A844 Discover designation and components
ADS number: 3857 Aitken Double Star catalog
HD number: 34307 HD catalog number
Hipparcos number: 24580 Hipparcos catalog number
V1: 8.33 Magnitude of the primary
V2: 9.12 Magnitude of the secondary
Equinox: Equinox
Date: 2021 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: Tok2021f Reference

Double Star Orbit for A844



WDS 6th Orbit including measures of A844

-- 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 A844
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.219   227.19
--------------------------
1898.50    0.289   341.37
1899.50    0.288   342.20
1900.50    0.287   343.04
1901.50    0.286   343.89
1902.50    0.285   344.75
1903.50    0.283   345.61
1904.50    0.282   346.48
1905.50    0.281   347.36
1906.50    0.279   348.25
1907.50    0.278   349.14
1908.50    0.276   350.05
1909.50    0.275   350.97
1910.50    0.273   351.90
1911.50    0.271   352.83
1912.50    0.270   353.78
1913.50    0.268   354.75
1914.50    0.266   355.72
1915.50    0.264   356.71
1916.50    0.263   357.71
1917.50    0.261   358.73
1918.50    0.259   359.76
1919.50    0.257     0.80
1920.50    0.255     1.87
1921.50    0.253     2.95
1922.50    0.251     4.04
1923.50    0.249     5.16
1924.50    0.246     6.30
1925.50    0.244     7.45
1926.50    0.242     8.63
1927.50    0.240     9.83
1928.50    0.237    11.05
1929.50    0.235    12.30
1930.50    0.233    13.57
1931.50    0.230    14.87
1932.50    0.228    16.20
1933.50    0.225    17.55
1934.50    0.223    18.94
1935.50    0.220    20.36
1936.50    0.218    21.81
1937.50    0.215    23.29
1938.50    0.212    24.81
1939.50    0.210    26.37
1940.50    0.207    27.97
1941.50    0.205    29.61
1942.50    0.202    31.30
1943.50    0.199    33.02
1944.50    0.197    34.80
1945.50    0.194    36.62
1946.50    0.191    38.49
1947.50    0.189    40.42
1948.50    0.186    42.40
1949.50    0.184    44.43
1950.50    0.181    46.52
1951.50    0.179    48.67
1952.50    0.176    50.89
1953.50    0.174    53.16
1954.50    0.171    55.49
1955.50    0.169    57.89
1956.50    0.167    60.35
1957.50    0.165    62.88
1958.50    0.163    65.47
1959.50    0.161    68.12
1960.50    0.159    70.83
1961.50    0.158    73.61
1962.50    0.156    76.44
1963.50    0.155    79.33
1964.50    0.153    82.26
1965.50    0.152    85.25
1966.50    0.151    88.27
1967.50    0.150    91.33
1968.50    0.150    94.43
1969.50    0.149    97.54
1970.50    0.149   100.68
1971.50    0.149   103.83
1972.50    0.148   106.98
1973.50    0.149   110.13
1974.50    0.149   113.28
1975.50    0.149   116.41
1976.50    0.150   119.52
1977.50    0.150   122.61
1978.50    0.151   125.67
1979.50    0.152   128.69
1980.50    0.153   131.68
1981.50    0.154   134.63
1982.50    0.155   137.54
1983.50    0.157   140.40
1984.50    0.158   143.22
1985.50    0.159   145.99
1986.50    0.161   148.71
1987.50    0.162   151.38
1988.50    0.164   154.01
1989.50    0.165   156.58
1990.50    0.167   159.11
1991.50    0.168   161.60
1992.50    0.170   164.04
1993.50    0.171   166.43
1994.50    0.173   168.78
1995.50    0.174   171.09
1996.50    0.176   173.36
1997.50    0.177   175.59
1998.50    0.179   177.78
1999.50    0.181   179.93
2000.50    0.182   182.04
2001.50    0.184   184.12
2002.50    0.185   186.17
2003.50    0.187   188.18
2004.50    0.188   190.16
2005.50    0.190   192.11
2006.50    0.191   194.03
2007.50    0.193   195.92
2008.50    0.194   197.78
2009.50    0.195   199.61
2010.50    0.197   201.42
2011.50    0.198   203.20
2012.50    0.200   204.96
2013.50    0.201   206.69
2014.50    0.203   208.39
2015.50    0.204   210.08
2016.50    0.205   211.74
2017.50    0.207   213.37
2018.50    0.208   214.99
2019.50    0.210   216.59
2020.50    0.211   218.16
2021.50    0.212   219.71
2022.50    0.214   221.25
2023.50    0.215   222.76
2024.50    0.216   224.25
2025.50    0.218   225.73
2026.50    0.219   227.19
2027.50    0.220   228.63
2028.50    0.222   230.05
2029.50    0.223   231.46
2030.50    0.225   232.84
2031.50    0.226   234.21
2032.50    0.227   235.57
2033.50    0.229   236.91
2034.50    0.230   238.23
2035.50    0.231   239.54
2036.50    0.233   240.83
2037.50    0.234   242.11
2038.50    0.235   243.37
2039.50    0.237   244.62
2040.50    0.238   245.86
2041.50    0.239   247.08
2042.50    0.241   248.29
2043.50    0.242   249.48
2044.50    0.243   250.66
2045.50    0.245   251.83
2046.50    0.246   252.98
2047.50    0.247   254.13
2048.50    0.249   255.26
2049.50    0.250   256.38
2050.50    0.251   257.49
2051.50    0.252   258.58
2052.50    0.254   259.67
2053.50    0.255   260.74
2054.50    0.256   261.81
2055.50    0.258   262.86
2056.50    0.259   263.91
2057.50    0.260   264.94
2058.50    0.261   265.96
2059.50    0.263   266.98
2060.50    0.264   267.98
2061.50    0.265   268.98
2062.50    0.266   269.96
2063.50    0.267   270.94
2064.50    0.269   271.91
2065.50    0.270   272.87
2066.50    0.271   273.82
2067.50    0.272   274.76
2068.50    0.273   275.70
2069.50    0.274   276.63
2070.50    0.275   277.55
2071.50    0.277   278.46
2072.50    0.278   279.37
2073.50    0.279   280.27
2074.50    0.280   281.16
2075.50    0.281   282.04
2076.50    0.282   282.92
2077.50    0.283   283.80
2078.50    0.284   284.66
2079.50    0.285   285.52
2080.50    0.286   286.38
2081.50    0.287   287.23
2082.50    0.288   288.07
2083.50    0.288   288.91
2084.50    0.289   289.74
2085.50    0.290   290.57
2086.50    0.291   291.39
2087.50    0.292   292.21
2088.50    0.293   293.03
2089.50    0.294   293.83
2090.50    0.294   294.64
2091.50    0.295   295.44
2092.50    0.296   296.24
2093.50    0.296   297.03
2094.50    0.297   297.82
2095.50    0.298   298.61
2096.50    0.298   299.39
2097.50    0.299   300.17
2098.50    0.300   300.94
2099.50    0.300   301.72
2100.50    0.301   302.49
2101.50    0.301   303.25
2102.50    0.302   304.02
2103.50    0.302   304.78
2104.50    0.303   305.54
2105.50    0.303   306.30
2106.50    0.304   307.05
2107.50    0.304   307.81
2108.50    0.304   308.56
2109.50    0.305   309.31
2110.50    0.305   310.06
2111.50    0.305   310.81
2112.50    0.305   311.55
2113.50    0.306   312.30
2114.50    0.306   313.04
2115.50    0.306   313.79
2116.50    0.306   314.53
2117.50    0.306   315.27
2118.50    0.306   316.01
2119.50    0.306   316.76
2120.50    0.306   317.50
2121.50    0.306   318.24
2122.50    0.306   318.98
2123.50    0.306   319.72
2124.50    0.306   320.47
2125.50    0.306   321.21
2126.50    0.306   321.96
2127.50    0.305   322.70
2128.50    0.305   323.45
2129.50    0.305   324.20
2130.50    0.304   324.94
2131.50    0.304   325.70
2132.50    0.304   326.45
2133.50    0.303   327.20
2134.50    0.303   327.96
2135.50    0.302   328.72
2136.50    0.302   329.48
2137.50    0.301   330.25
2138.50    0.301   331.02
2139.50    0.300   331.79
2140.50    0.299   332.56
2141.50    0.299   333.34
2142.50    0.298   334.12
2143.50    0.297   334.91
2144.50    0.296   335.70
2145.50    0.295   336.49
2146.50    0.294   337.29
2147.50    0.294   338.10
2148.50    0.293   338.91
2149.50    0.292   339.72
2150.50    0.290   340.54






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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 15:35:37



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