Double Star Calculator - Orbit

Orbital Elements for A378
WDS: A378 WDS ID/Discoverer
P: 591.302 Orbital period (years)
a: 1.57387 Semi-major axis (arcseconds)
i: 95.414 Inclination (degrees)
Ω: 108.095 Longitude of ascending node (degrees)
T: 2060.824 Epoch of periastron passage (year)
e: 0.70961 Eccentricity
ω: 256.252 Longitude of periastron (degrees)
Start-Year: 1729.349 Year
End-Year: 2320.651 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A378
Position: 195922.02+320628.0 Epoch-2000 right ascension and declination
WDS-ID: 19594+3206 WDS designation
Discoverer Code: A378 Discover designation and components
ADS number: 13212 Aitken Double Star catalog
HD number: 189549 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.48 Magnitude of the primary
V2: 8.98 Magnitude of the secondary
Equinox: Equinox
Date: 2013 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for A378



WDS 6th Orbit including measures of A378

-- 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 A378
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.825   290.66
--------------------------
1729.35    0.901    92.81
1730.35    0.895    92.68
1731.35    0.889    92.56
1732.35    0.883    92.43
1733.35    0.878    92.30
1734.35    0.872    92.17
1735.35    0.866    92.03
1736.35    0.860    91.90
1737.35    0.854    91.76
1738.35    0.848    91.63
1739.35    0.842    91.48
1740.35    0.836    91.34
1741.35    0.830    91.20
1742.35    0.824    91.05
1743.35    0.818    90.90
1744.35    0.812    90.75
1745.35    0.806    90.60
1746.35    0.800    90.44
1747.35    0.794    90.29
1748.35    0.788    90.13
1749.35    0.782    89.96
1750.35    0.776    89.80
1751.35    0.770    89.63
1752.35    0.764    89.46
1753.35    0.758    89.29
1754.35    0.752    89.11
1755.35    0.746    88.93
1756.35    0.740    88.75
1757.35    0.734    88.57
1758.35    0.727    88.38
1759.35    0.721    88.19
1760.35    0.715    87.99
1761.35    0.709    87.80
1762.35    0.703    87.59
1763.35    0.697    87.39
1764.35    0.690    87.18
1765.35    0.684    86.97
1766.35    0.678    86.75
1767.35    0.672    86.53
1768.35    0.666    86.31
1769.35    0.659    86.08
1770.35    0.653    85.85
1771.35    0.647    85.61
1772.35    0.641    85.37
1773.35    0.635    85.12
1774.35    0.628    84.87
1775.35    0.622    84.61
1776.35    0.616    84.35
1777.35    0.610    84.08
1778.35    0.603    83.81
1779.35    0.597    83.53
1780.35    0.591    83.25
1781.35    0.585    82.96
1782.35    0.579    82.66
1783.35    0.572    82.36
1784.35    0.566    82.05
1785.35    0.560    81.73
1786.35    0.554    81.41
1787.35    0.547    81.08
1788.35    0.541    80.74
1789.35    0.535    80.40
1790.35    0.529    80.04
1791.35    0.523    79.68
1792.35    0.516    79.31
1793.35    0.510    78.93
1794.35    0.504    78.54
1795.35    0.498    78.14
1796.35    0.492    77.73
1797.35    0.486    77.31
1798.35    0.480    76.88
1799.35    0.474    76.44
1800.35    0.468    75.99
1801.35    0.462    75.52
1802.35    0.456    75.04
1803.35    0.450    74.55
1804.35    0.444    74.05
1805.35    0.438    73.54
1806.35    0.432    73.00
1807.35    0.426    72.46
1808.35    0.420    71.90
1809.35    0.414    71.32
1810.35    0.408    70.73
1811.35    0.403    70.12
1812.35    0.397    69.49
1813.35    0.391    68.85
1814.35    0.386    68.18
1815.35    0.380    67.50
1816.35    0.374    66.79
1817.35    0.369    66.07
1818.35    0.363    65.32
1819.35    0.358    64.55
1820.35    0.353    63.75
1821.35    0.347    62.93
1822.35    0.342    62.09
1823.35    0.337    61.22
1824.35    0.332    60.33
1825.35    0.327    59.40
1826.35    0.322    58.45
1827.35    0.317    57.47
1828.35    0.312    56.46
1829.35    0.308    55.41
1830.35    0.303    54.34
1831.35    0.299    53.23
1832.35    0.294    52.09
1833.35    0.290    50.92
1834.35    0.286    49.71
1835.35    0.282    48.47
1836.35    0.278    47.19
1837.35    0.274    45.88
1838.35    0.271    44.53
1839.35    0.267    43.15
1840.35    0.264    41.73
1841.35    0.261    40.27
1842.35    0.258    38.79
1843.35    0.255    37.26
1844.35    0.253    35.71
1845.35    0.250    34.12
1846.35    0.248    32.51
1847.35    0.246    30.86
1848.35    0.244    29.19
1849.35    0.242    27.50
1850.35    0.241    25.78
1851.35    0.240    24.05
1852.35    0.239    22.30
1853.35    0.238    20.53
1854.35    0.237    18.76
1855.35    0.237    16.98
1856.35    0.237    15.19
1857.35    0.237    13.41
1858.35    0.237    11.62
1859.35    0.238     9.85
1860.35    0.239     8.08
1861.35    0.240     6.33
1862.35    0.241     4.59
1863.35    0.242     2.87
1864.35    0.244     1.18
1865.35    0.246   359.50
1866.35    0.248   357.85
1867.35    0.250   356.24
1868.35    0.252   354.65
1869.35    0.255   353.09
1870.35    0.258   351.56
1871.35    0.261   350.07
1872.35    0.264   348.61
1873.35    0.267   347.18
1874.35    0.270   345.80
1875.35    0.274   344.44
1876.35    0.278   343.12
1877.35    0.281   341.84
1878.35    0.285   340.59
1879.35    0.290   339.38
1880.35    0.294   338.20
1881.35    0.298   337.06
1882.35    0.302   335.94
1883.35    0.307   334.86
1884.35    0.312   333.82
1885.35    0.316   332.80
1886.35    0.321   331.81
1887.35    0.326   330.85
1888.35    0.331   329.92
1889.35    0.336   329.02
1890.35    0.341   328.15
1891.35    0.346   327.30
1892.35    0.351   326.47
1893.35    0.357   325.67
1894.35    0.362   324.90
1895.35    0.367   324.14
1896.35    0.373   323.41
1897.35    0.378   322.70
1898.35    0.384   322.01
1899.35    0.389   321.34
1900.35    0.395   320.69
1901.35    0.401   320.06
1902.35    0.406   319.44
1903.35    0.412   318.84
1904.35    0.418   318.26
1905.35    0.424   317.69
1906.35    0.429   317.14
1907.35    0.435   316.60
1908.35    0.441   316.08
1909.35    0.447   315.57
1910.35    0.453   315.08
1911.35    0.458   314.59
1912.35    0.464   314.12
1913.35    0.470   313.66
1914.35    0.476   313.22
1915.35    0.482   312.78
1916.35    0.488   312.35
1917.35    0.494   311.94
1918.35    0.500   311.53
1919.35    0.506   311.13
1920.35    0.512   310.75
1921.35    0.518   310.37
1922.35    0.524   310.00
1923.35    0.529   309.64
1924.35    0.535   309.28
1925.35    0.541   308.94
1926.35    0.547   308.60
1927.35    0.553   308.27
1928.35    0.559   307.94
1929.35    0.565   307.63
1930.35    0.571   307.31
1931.35    0.577   307.01
1932.35    0.583   306.71
1933.35    0.588   306.42
1934.35    0.594   306.13
1935.35    0.600   305.85
1936.35    0.606   305.58
1937.35    0.612   305.30
1938.35    0.617   305.04
1939.35    0.623   304.78
1940.35    0.629   304.52
1941.35    0.634   304.27
1942.35    0.640   304.02
1943.35    0.646   303.78
1944.35    0.651   303.54
1945.35    0.657   303.31
1946.35    0.662   303.08
1947.35    0.668   302.85
1948.35    0.673   302.63
1949.35    0.679   302.41
1950.35    0.684   302.19
1951.35    0.690   301.98
1952.35    0.695   301.77
1953.35    0.700   301.57
1954.35    0.706   301.36
1955.35    0.711   301.16
1956.35    0.716   300.97
1957.35    0.721   300.77
1958.35    0.726   300.58
1959.35    0.731   300.39
1960.35    0.736   300.21
1961.35    0.741   300.02
1962.35    0.746   299.84
1963.35    0.751   299.66
1964.35    0.756   299.48
1965.35    0.761   299.31
1966.35    0.765   299.14
1967.35    0.770   298.97
1968.35    0.774   298.80
1969.35    0.779   298.63
1970.35    0.783   298.47
1971.35    0.788   298.31
1972.35    0.792   298.15
1973.35    0.796   297.99
1974.35    0.800   297.83
1975.35    0.804   297.67
1976.35    0.809   297.52
1977.35    0.812   297.37
1978.35    0.816   297.22
1979.35    0.820   297.07
1980.35    0.824   296.92
1981.35    0.827   296.77
1982.35    0.831   296.62
1983.35    0.834   296.48
1984.35    0.838   296.34
1985.35    0.841   296.19
1986.35    0.844   296.05
1987.35    0.847   295.91
1988.35    0.850   295.77
1989.35    0.853   295.64
1990.35    0.855   295.50
1991.35    0.858   295.36
1992.35    0.860   295.22
1993.35    0.862   295.09
1994.35    0.865   294.96
1995.35    0.867   294.82
1996.35    0.869   294.69
1997.35    0.870   294.56
1998.35    0.872   294.42
1999.35    0.873   294.29
2000.35    0.875   294.16
2001.35    0.876   294.03
2002.35    0.877   293.90
2003.35    0.877   293.77
2004.35    0.878   293.64
2005.35    0.878   293.51
2006.35    0.878   293.38
2007.35    0.878   293.25
2008.35    0.878   293.12
2009.35    0.878   292.99
2010.35    0.877   292.86
2011.35    0.876   292.73
2012.35    0.875   292.60
2013.35    0.873   292.47
2014.35    0.872   292.33
2015.35    0.870   292.20
2016.35    0.867   292.07
2017.35    0.865   291.94
2018.35    0.862   291.80
2019.35    0.859   291.67
2020.35    0.855   291.53
2021.35    0.851   291.39
2022.35    0.847   291.25
2023.35    0.842   291.11
2024.35    0.837   290.97
2025.35    0.832   290.83
2026.35    0.826   290.68
2027.35    0.819   290.53
2028.35    0.812   290.38
2029.35    0.805   290.23
2030.35    0.797   290.07
2031.35    0.788   289.91
2032.35    0.779   289.75
2033.35    0.769   289.58
2034.35    0.759   289.41
2035.35    0.747   289.23
2036.35    0.736   289.05
2037.35    0.723   288.86
2038.35    0.709   288.67
2039.35    0.695   288.46
2040.35    0.680   288.25
2041.35    0.664   288.03
2042.35    0.647   287.79
2043.35    0.628   287.55
2044.35    0.609   287.29
2045.35    0.589   287.01
2046.35    0.567   286.71
2047.35    0.544   286.38
2048.35    0.520   286.03
2049.35    0.495   285.64
2050.35    0.468   285.20
2051.35    0.440   284.72
2052.35    0.411   284.16
2053.35    0.380   283.52
2054.35    0.348   282.76
2055.35    0.314   281.84
2056.35    0.280   280.71
2057.35    0.244   279.24
2058.35    0.208   277.27
2059.35    0.171   274.45
2060.35    0.134   270.06
2061.35    0.098   262.36
2062.35    0.064   246.22
2063.35    0.044   208.47
2064.35    0.054   161.90
2065.35    0.084   139.51
2066.35    0.120   129.58
2067.35    0.157   124.26
2068.35    0.194   120.97
2069.35    0.231   118.75
2070.35    0.268   117.13
2071.35    0.304   115.90
2072.35    0.339   114.93
2073.35    0.373   114.13
2074.35    0.406   113.47
2075.35    0.439   112.91
2076.35    0.470   112.42
2077.35    0.501   112.00
2078.35    0.530   111.62
2079.35    0.559   111.28
2080.35    0.587   110.98
2081.35    0.614   110.70
2082.35    0.640   110.44
2083.35    0.666   110.21
2084.35    0.690   109.99
2085.35    0.714   109.79
2086.35    0.737   109.60
2087.35    0.759   109.42
2088.35    0.781   109.25
2089.35    0.802   109.09
2090.35    0.822   108.94
2091.35    0.842   108.79
2092.35    0.861   108.65
2093.35    0.879   108.52
2094.35    0.897   108.39
2095.35    0.915   108.27
2096.35    0.931   108.15
2097.35    0.948   108.04
2098.35    0.964   107.93
2099.35    0.979   107.82
2100.35    0.994   107.72
2101.35    1.009   107.62
2102.35    1.023   107.52
2103.35    1.036   107.43
2104.35    1.050   107.34
2105.35    1.063   107.25
2106.35    1.075   107.16
2107.35    1.087   107.07
2108.35    1.099   106.99
2109.35    1.110   106.91
2110.35    1.122   106.83
2111.35    1.132   106.75
2112.35    1.143   106.67
2113.35    1.153   106.59
2114.35    1.163   106.52
2115.35    1.173   106.45
2116.35    1.182   106.37
2117.35    1.191   106.30
2118.35    1.200   106.23
2119.35    1.208   106.16
2120.35    1.217   106.10
2121.35    1.225   106.03
2122.35    1.233   105.96
2123.35    1.240   105.90
2124.35    1.248   105.83
2125.35    1.255   105.77
2126.35    1.262   105.70
2127.35    1.268   105.64
2128.35    1.275   105.58
2129.35    1.281   105.52
2130.35    1.287   105.46
2131.35    1.293   105.40
2132.35    1.299   105.34
2133.35    1.304   105.28
2134.35    1.310   105.22
2135.35    1.315   105.16
2136.35    1.320   105.10
2137.35    1.325   105.05
2138.35    1.330   104.99
2139.35    1.334   104.93
2140.35    1.338   104.88
2141.35    1.343   104.82
2142.35    1.347   104.77
2143.35    1.351   104.71
2144.35    1.354   104.66
2145.35    1.358   104.60
2146.35    1.362   104.55
2147.35    1.365   104.49
2148.35    1.368   104.44
2149.35    1.371   104.39
2150.35    1.374   104.33
2151.35    1.377   104.28
2152.35    1.380   104.23
2153.35    1.382   104.17
2154.35    1.385   104.12
2155.35    1.387   104.07
2156.35    1.389   104.02
2157.35    1.391   103.97
2158.35    1.393   103.91
2159.35    1.395   103.86
2160.35    1.397   103.81
2161.35    1.398   103.76
2162.35    1.400   103.71
2163.35    1.401   103.66
2164.35    1.403   103.61
2165.35    1.404   103.56
2166.35    1.405   103.50
2167.35    1.406   103.45
2168.35    1.407   103.40
2169.35    1.408   103.35
2170.35    1.409   103.30
2171.35    1.409   103.25
2172.35    1.410   103.20
2173.35    1.410   103.15
2174.35    1.411   103.10
2175.35    1.411   103.05
2176.35    1.411   103.00
2177.35    1.411   102.95
2178.35    1.411   102.90
2179.35    1.411   102.85
2180.35    1.411   102.80
2181.35    1.411   102.75
2182.35    1.411   102.70
2183.35    1.410   102.65
2184.35    1.410   102.60
2185.35    1.409   102.55
2186.35    1.409   102.50
2187.35    1.408   102.44
2188.35    1.407   102.39
2189.35    1.407   102.34
2190.35    1.406   102.29
2191.35    1.405   102.24
2192.35    1.404   102.19
2193.35    1.403   102.14
2194.35    1.402   102.09
2195.35    1.400   102.04
2196.35    1.399   101.99
2197.35    1.398   101.94
2198.35    1.396   101.88
2199.35    1.395   101.83
2200.35    1.393   101.78
2201.35    1.392   101.73
2202.35    1.390   101.68
2203.35    1.388   101.63
2204.35    1.387   101.57
2205.35    1.385   101.52
2206.35    1.383   101.47
2207.35    1.381   101.42
2208.35    1.379   101.36
2209.35    1.377   101.31
2210.35    1.375   101.26
2211.35    1.372   101.21
2212.35    1.370   101.15
2213.35    1.368   101.10
2214.35    1.366   101.04
2215.35    1.363   100.99
2216.35    1.361   100.94
2217.35    1.358   100.88
2218.35    1.356   100.83
2219.35    1.353   100.77
2220.35    1.350   100.72
2221.35    1.348   100.66
2222.35    1.345   100.61
2223.35    1.342   100.55
2224.35    1.339   100.50
2225.35    1.336   100.44
2226.35    1.333   100.38
2227.35    1.330   100.33
2228.35    1.327   100.27
2229.35    1.324   100.21
2230.35    1.321   100.16
2231.35    1.318   100.10
2232.35    1.315   100.04
2233.35    1.312    99.98
2234.35    1.308    99.93
2235.35    1.305    99.87
2236.35    1.302    99.81
2237.35    1.298    99.75
2238.35    1.295    99.69
2239.35    1.291    99.63
2240.35    1.288    99.57
2241.35    1.284    99.51
2242.35    1.280    99.45
2243.35    1.277    99.39
2244.35    1.273    99.32
2245.35    1.269    99.26
2246.35    1.266    99.20
2247.35    1.262    99.14
2248.35    1.258    99.07
2249.35    1.254    99.01
2250.35    1.250    98.95
2251.35    1.246    98.88
2252.35    1.242    98.82
2253.35    1.238    98.75
2254.35    1.234    98.69
2255.35    1.230    98.62
2256.35    1.226    98.55
2257.35    1.222    98.49
2258.35    1.217    98.42
2259.35    1.213    98.35
2260.35    1.209    98.28
2261.35    1.205    98.21
2262.35    1.200    98.14
2263.35    1.196    98.07
2264.35    1.191    98.00
2265.35    1.187    97.93
2266.35    1.182    97.86
2267.35    1.178    97.79
2268.35    1.173    97.72
2269.35    1.169    97.64
2270.35    1.164    97.57
2271.35    1.160    97.50
2272.35    1.155    97.42
2273.35    1.150    97.35
2274.35    1.146    97.27
2275.35    1.141    97.19
2276.35    1.136    97.12
2277.35    1.131    97.04
2278.35    1.127    96.96
2279.35    1.122    96.88
2280.35    1.117    96.80
2281.35    1.112    96.72
2282.35    1.107    96.64
2283.35    1.102    96.56
2284.35    1.097    96.47
2285.35    1.092    96.39
2286.35    1.087    96.30
2287.35    1.082    96.22
2288.35    1.077    96.13
2289.35    1.072    96.05
2290.35    1.067    95.96
2291.35    1.061    95.87
2292.35    1.056    95.78
2293.35    1.051    95.69
2294.35    1.046    95.60
2295.35    1.041    95.51
2296.35    1.035    95.41
2297.35    1.030    95.32
2298.35    1.025    95.22
2299.35    1.019    95.13
2300.35    1.014    95.03
2301.35    1.009    94.93
2302.35    1.003    94.83
2303.35    0.998    94.73
2304.35    0.992    94.63
2305.35    0.987    94.53
2306.35    0.981    94.43
2307.35    0.976    94.32
2308.35    0.970    94.22
2309.35    0.965    94.11
2310.35    0.959    94.00
2311.35    0.954    93.89
2312.35    0.948    93.78
2313.35    0.942    93.67
2314.35    0.937    93.55
2315.35    0.931    93.44
2316.35    0.925    93.32
2317.35    0.920    93.21
2318.35    0.914    93.09
2319.35    0.908    92.97
2320.35    0.902    92.84






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 18:10:59



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