Double Star Calculator - Orbit

Orbital Elements for A347
WDS: A347 WDS ID/Discoverer
P: 258.000 Orbital period (years)
a: 0.562 Semi-major axis (arcseconds)
i: 139.6 Inclination (degrees)
Ω: 99.8 Longitude of ascending node (degrees)
T: 1930.300 Epoch of periastron passage (year)
e: 0.215 Eccentricity
ω: 92.3 Longitude of periastron (degrees)
Start-Year: 1896.0 Year
End-Year: 2154.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A347
Position: 143656.24+481317.9 Epoch-2000 right ascension and declination
WDS-ID: 14369+4813 WDS designation
Discoverer Code: A347 Discover designation and components
ADS number: 9324 Aitken Double Star catalog
HD number: 128718 HD catalog number
Hipparcos number: 71467 Hipparcos catalog number
V1: 8.68 Magnitude of the primary
V2: 8.37 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: Doc2017k Reference

Double Star Orbit for A347



WDS 6th Orbit including measures of A347

-- 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 A347
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.541   225.59
--------------------------
1896.00    0.483    82.10
1897.00    0.478    80.68
1898.00    0.472    79.23
1899.00    0.467    77.74
1900.00    0.462    76.22
1901.00    0.456    74.66
1902.00    0.450    73.07
1903.00    0.445    71.43
1904.00    0.439    69.75
1905.00    0.433    68.03
1906.00    0.428    66.26
1907.00    0.422    64.44
1908.00    0.416    62.57
1909.00    0.410    60.65
1910.00    0.405    58.68
1911.00    0.399    56.65
1912.00    0.393    54.56
1913.00    0.388    52.41
1914.00    0.383    50.20
1915.00    0.377    47.93
1916.00    0.373    45.60
1917.00    0.368    43.21
1918.00    0.363    40.76
1919.00    0.359    38.24
1920.00    0.355    35.67
1921.00    0.351    33.04
1922.00    0.348    30.36
1923.00    0.345    27.64
1924.00    0.343    24.86
1925.00    0.340    22.05
1926.00    0.339    19.21
1927.00    0.337    16.34
1928.00    0.336    13.45
1929.00    0.336    10.55
1930.00    0.336     7.65
1931.00    0.337     4.75
1932.00    0.337     1.87
1933.00    0.339   359.00
1934.00    0.341   356.16
1935.00    0.343   353.35
1936.00    0.345   350.58
1937.00    0.348   347.85
1938.00    0.352   345.18
1939.00    0.355   342.55
1940.00    0.359   339.98
1941.00    0.363   337.47
1942.00    0.368   335.02
1943.00    0.373   332.63
1944.00    0.378   330.30
1945.00    0.383   328.03
1946.00    0.388   325.83
1947.00    0.393   323.68
1948.00    0.399   321.59
1949.00    0.404   319.56
1950.00    0.410   317.58
1951.00    0.416   315.66
1952.00    0.421   313.78
1953.00    0.427   311.96
1954.00    0.433   310.19
1955.00    0.438   308.46
1956.00    0.444   306.78
1957.00    0.449   305.13
1958.00    0.455   303.53
1959.00    0.460   301.96
1960.00    0.466   300.43
1961.00    0.471   298.94
1962.00    0.476   297.47
1963.00    0.481   296.04
1964.00    0.486   294.64
1965.00    0.490   293.26
1966.00    0.495   291.91
1967.00    0.499   290.58
1968.00    0.503   289.28
1969.00    0.508   287.99
1970.00    0.512   286.73
1971.00    0.515   285.49
1972.00    0.519   284.26
1973.00    0.523   283.05
1974.00    0.526   281.86
1975.00    0.529   280.68
1976.00    0.532   279.52
1977.00    0.535   278.37
1978.00    0.538   277.23
1979.00    0.540   276.10
1980.00    0.543   274.98
1981.00    0.545   273.88
1982.00    0.547   272.78
1983.00    0.549   271.69
1984.00    0.551   270.60
1985.00    0.553   269.53
1986.00    0.554   268.46
1987.00    0.556   267.40
1988.00    0.557   266.34
1989.00    0.558   265.28
1990.00    0.559   264.23
1991.00    0.560   263.19
1992.00    0.561   262.14
1993.00    0.562   261.10
1994.00    0.562   260.07
1995.00    0.563   259.03
1996.00    0.563   258.00
1997.00    0.563   256.96
1998.00    0.563   255.93
1999.00    0.563   254.90
2000.00    0.563   253.87
2001.00    0.563   252.83
2002.00    0.563   251.80
2003.00    0.563   250.76
2004.00    0.562   249.73
2005.00    0.562   248.69
2006.00    0.561   247.65
2007.00    0.561   246.61
2008.00    0.560   245.57
2009.00    0.559   244.52
2010.00    0.559   243.47
2011.00    0.558   242.42
2012.00    0.557   241.36
2013.00    0.556   240.30
2014.00    0.555   239.24
2015.00    0.554   238.17
2016.00    0.553   237.10
2017.00    0.552   236.03
2018.00    0.551   234.95
2019.00    0.550   233.87
2020.00    0.548   232.78
2021.00    0.547   231.69
2022.00    0.546   230.59
2023.00    0.545   229.49
2024.00    0.544   228.38
2025.00    0.542   227.27
2026.00    0.541   226.15
2027.00    0.540   225.03
2028.00    0.539   223.91
2029.00    0.538   222.78
2030.00    0.537   221.64
2031.00    0.535   220.50
2032.00    0.534   219.35
2033.00    0.533   218.20
2034.00    0.532   217.05
2035.00    0.531   215.89
2036.00    0.530   214.73
2037.00    0.529   213.56
2038.00    0.528   212.38
2039.00    0.527   211.21
2040.00    0.527   210.03
2041.00    0.526   208.84
2042.00    0.525   207.66
2043.00    0.524   206.47
2044.00    0.524   205.27
2045.00    0.523   204.07
2046.00    0.522   202.87
2047.00    0.522   201.67
2048.00    0.521   200.47
2049.00    0.521   199.26
2050.00    0.521   198.05
2051.00    0.520   196.84
2052.00    0.520   195.63
2053.00    0.520   194.42
2054.00    0.520   193.21
2055.00    0.520   191.99
2056.00    0.520   190.78
2057.00    0.520   189.57
2058.00    0.520   188.36
2059.00    0.520   187.14
2060.00    0.520   185.93
2061.00    0.521   184.72
2062.00    0.521   183.52
2063.00    0.522   182.31
2064.00    0.522   181.11
2065.00    0.523   179.91
2066.00    0.523   178.71
2067.00    0.524   177.51
2068.00    0.525   176.32
2069.00    0.525   175.13
2070.00    0.526   173.94
2071.00    0.527   172.76
2072.00    0.528   171.59
2073.00    0.529   170.41
2074.00    0.530   169.24
2075.00    0.531   168.08
2076.00    0.532   166.92
2077.00    0.533   165.76
2078.00    0.534   164.61
2079.00    0.535   163.46
2080.00    0.537   162.32
2081.00    0.538   161.19
2082.00    0.539   160.06
2083.00    0.540   158.93
2084.00    0.542   157.81
2085.00    0.543   156.70
2086.00    0.544   155.59
2087.00    0.546   154.49
2088.00    0.547   153.39
2089.00    0.548   152.30
2090.00    0.550   151.21
2091.00    0.551   150.13
2092.00    0.552   149.05
2093.00    0.554   147.98
2094.00    0.555   146.91
2095.00    0.556   145.85
2096.00    0.557   144.79
2097.00    0.559   143.74
2098.00    0.560   142.69
2099.00    0.561   141.65
2100.00    0.562   140.61
2101.00    0.563   139.57
2102.00    0.564   138.54
2103.00    0.565   137.52
2104.00    0.566   136.49
2105.00    0.567   135.47
2106.00    0.568   134.46
2107.00    0.569   133.44
2108.00    0.570   132.43
2109.00    0.570   131.42
2110.00    0.571   130.42
2111.00    0.571   129.41
2112.00    0.572   128.41
2113.00    0.572   127.41
2114.00    0.573   126.41
2115.00    0.573   125.41
2116.00    0.573   124.41
2117.00    0.573   123.41
2118.00    0.573   122.41
2119.00    0.573   121.41
2120.00    0.572   120.41
2121.00    0.572   119.41
2122.00    0.571   118.41
2123.00    0.571   117.40
2124.00    0.570   116.40
2125.00    0.569   115.39
2126.00    0.568   114.37
2127.00    0.567   113.36
2128.00    0.566   112.33
2129.00    0.564   111.31
2130.00    0.563   110.28
2131.00    0.561   109.24
2132.00    0.560   108.20
2133.00    0.558   107.15
2134.00    0.556   106.09
2135.00    0.553   105.02
2136.00    0.551   103.95
2137.00    0.548   102.86
2138.00    0.546   101.77
2139.00    0.543   100.66
2140.00    0.540    99.54
2141.00    0.537    98.41
2142.00    0.534    97.27
2143.00    0.530    96.11
2144.00    0.527    94.94
2145.00    0.523    93.75
2146.00    0.519    92.54
2147.00    0.515    91.31
2148.00    0.511    90.06
2149.00    0.506    88.80
2150.00    0.502    87.51
2151.00    0.497    86.19
2152.00    0.493    84.86
2153.00    0.488    83.49






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 17:06:58



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