Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:06:08

Orbital Elements for I78
WDS: I78 WDS ID/Discoverer
P: 600.000 Orbital period (years)
a: 1.063 Semi-major axis (arcseconds)
i: 84.5 Inclination (degrees)
Ω: 93.7 Longitude of ascending node (degrees)
T: 2064.253 Epoch of periastron passage (year)
e: 0.112 Eccentricity
ω: 93.6 Longitude of periastron (degrees)
Start-Year: 1725.0 Year
End-Year: 2325.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I78
Position: 113337.14-403511.8 Epoch-2000 right ascension and declination
WDS-ID: 11336-4035 WDS designation
Discoverer Code: I78 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 100493 HD catalog number
Hipparcos number: 56391 Hipparcos catalog number
V1: 6.13 Magnitude of the primary
V2: 6.16 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for I78



WDS 6th Orbit including measures of I78

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of I78
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.425    104.9
-------------------------
1725.0     0.330    292.9
1726.0     0.321    293.5
1727.0     0.313    294.1
1728.0     0.304    294.8
1729.0     0.295    295.5
1730.0     0.286    296.3
1731.0     0.277    297.1
1732.0     0.268    298.0
1733.0     0.260    298.9
1734.0     0.251    299.9
1735.0     0.242    301.0
1736.0     0.234    302.1
1737.0     0.225    303.3
1738.0     0.217    304.6
1739.0     0.209    306.1
1740.0     0.201    307.6
1741.0     0.193    309.3
1742.0     0.185    311.1
1743.0     0.177    313.1
1744.0     0.170    315.2
1745.0     0.162    317.6
1746.0     0.155    320.1
1747.0     0.149    322.9
1748.0     0.143    326.0
1749.0     0.137    329.3
1750.0     0.132    332.9
1751.0     0.127    336.7
1752.0     0.123    340.9
1753.0     0.119    345.3
1754.0     0.117    349.9
1755.0     0.115    354.8
1756.0     0.114    359.7
1757.0     0.113      4.8
1758.0     0.114      9.8
1759.0     0.115     14.7
1760.0     0.118     19.5
1761.0     0.121     24.0
1762.0     0.124     28.3
1763.0     0.129     32.3
1764.0     0.134     36.1
1765.0     0.139     39.5
1766.0     0.145     42.7
1767.0     0.152     45.7
1768.0     0.159     48.3
1769.0     0.166     50.8
1770.0     0.173     53.1
1771.0     0.180     55.1
1772.0     0.188     57.0
1773.0     0.196     58.8
1774.0     0.204     60.4
1775.0     0.212     61.9
1776.0     0.221     63.3
1777.0     0.229     64.5
1778.0     0.238     65.7
1779.0     0.246     66.8
1780.0     0.255     67.9
1781.0     0.263     68.8
1782.0     0.272     69.7
1783.0     0.281     70.6
1784.0     0.290     71.4
1785.0     0.299     72.1
1786.0     0.308     72.8
1787.0     0.316     73.5
1788.0     0.325     74.1
1789.0     0.334     74.7
1790.0     0.343     75.3
1791.0     0.352     75.8
1792.0     0.361     76.3
1793.0     0.370     76.8
1794.0     0.379     77.2
1795.0     0.388     77.7
1796.0     0.397     78.1
1797.0     0.406     78.5
1798.0     0.415     78.9
1799.0     0.423     79.3
1800.0     0.432     79.6
1801.0     0.441     79.9
1802.0     0.450     80.3
1803.0     0.459     80.6
1804.0     0.468     80.9
1805.0     0.476     81.2
1806.0     0.485     81.5
1807.0     0.494     81.7
1808.0     0.502     82.0
1809.0     0.511     82.2
1810.0     0.520     82.5
1811.0     0.528     82.7
1812.0     0.537     82.9
1813.0     0.545     83.2
1814.0     0.554     83.4
1815.0     0.562     83.6
1816.0     0.570     83.8
1817.0     0.579     84.0
1818.0     0.587     84.2
1819.0     0.595     84.4
1820.0     0.603     84.5
1821.0     0.612     84.7
1822.0     0.620     84.9
1823.0     0.628     85.1
1824.0     0.636     85.2
1825.0     0.644     85.4
1826.0     0.652     85.5
1827.0     0.660     85.7
1828.0     0.667     85.8
1829.0     0.675     86.0
1830.0     0.683     86.1
1831.0     0.691     86.2
1832.0     0.698     86.4
1833.0     0.706     86.5
1834.0     0.713     86.6
1835.0     0.721     86.8
1836.0     0.728     86.9
1837.0     0.735     87.0
1838.0     0.743     87.1
1839.0     0.750     87.2
1840.0     0.757     87.4
1841.0     0.764     87.5
1842.0     0.771     87.6
1843.0     0.778     87.7
1844.0     0.785     87.8
1845.0     0.792     87.9
1846.0     0.799     88.0
1847.0     0.805     88.1
1848.0     0.812     88.2
1849.0     0.818     88.3
1850.0     0.825     88.4
1851.0     0.831     88.5
1852.0     0.838     88.6
1853.0     0.844     88.7
1854.0     0.850     88.8
1855.0     0.856     88.8
1856.0     0.862     88.9
1857.0     0.868     89.0
1858.0     0.874     89.1
1859.0     0.880     89.2
1860.0     0.886     89.3
1861.0     0.891     89.4
1862.0     0.897     89.4
1863.0     0.903     89.5
1864.0     0.908     89.6
1865.0     0.913     89.7
1866.0     0.919     89.7
1867.0     0.924     89.8
1868.0     0.929     89.9
1869.0     0.934     90.0
1870.0     0.939     90.0
1871.0     0.944     90.1
1872.0     0.948     90.2
1873.0     0.953     90.3
1874.0     0.958     90.3
1875.0     0.962     90.4
1876.0     0.967     90.5
1877.0     0.971     90.5
1878.0     0.975     90.6
1879.0     0.979     90.7
1880.0     0.983     90.7
1881.0     0.987     90.8
1882.0     0.991     90.9
1883.0     0.995     90.9
1884.0     0.999     91.0
1885.0     1.002     91.1
1886.0     1.006     91.1
1887.0     1.009     91.2
1888.0     1.013     91.3
1889.0     1.016     91.3
1890.0     1.019     91.4
1891.0     1.022     91.4
1892.0     1.025     91.5
1893.0     1.028     91.6
1894.0     1.030     91.6
1895.0     1.033     91.7
1896.0     1.035     91.8
1897.0     1.038     91.8
1898.0     1.040     91.9
1899.0     1.042     91.9
1900.0     1.044     92.0
1901.0     1.046     92.1
1902.0     1.048     92.1
1903.0     1.050     92.2
1904.0     1.052     92.2
1905.0     1.053     92.3
1906.0     1.055     92.3
1907.0     1.056     92.4
1908.0     1.057     92.5
1909.0     1.059     92.5
1910.0     1.060     92.6
1911.0     1.060     92.6
1912.0     1.061     92.7
1913.0     1.062     92.7
1914.0     1.063     92.8
1915.0     1.063     92.9
1916.0     1.063     92.9
1917.0     1.064     93.0
1918.0     1.064     93.0
1919.0     1.064     93.1
1920.0     1.064     93.1
1921.0     1.064     93.2
1922.0     1.063     93.3
1923.0     1.063     93.3
1924.0     1.062     93.4
1925.0     1.062     93.4
1926.0     1.061     93.5
1927.0     1.060     93.5
1928.0     1.059     93.6
1929.0     1.058     93.7
1930.0     1.057     93.7
1931.0     1.055     93.8
1932.0     1.054     93.8
1933.0     1.052     93.9
1934.0     1.051     94.0
1935.0     1.049     94.0
1936.0     1.047     94.1
1937.0     1.045     94.1
1938.0     1.043     94.2
1939.0     1.040     94.2
1940.0     1.038     94.3
1941.0     1.035     94.4
1942.0     1.033     94.4
1943.0     1.030     94.5
1944.0     1.027     94.5
1945.0     1.024     94.6
1946.0     1.021     94.7
1947.0     1.018     94.7
1948.0     1.014     94.8
1949.0     1.011     94.9
1950.0     1.007     94.9
1951.0     1.003     95.0
1952.0     1.000     95.1
1953.0     0.996     95.1
1954.0     0.992     95.2
1955.0     0.987     95.2
1956.0     0.983     95.3
1957.0     0.979     95.4
1958.0     0.974     95.4
1959.0     0.969     95.5
1960.0     0.965     95.6
1961.0     0.960     95.7
1962.0     0.955     95.7
1963.0     0.949     95.8
1964.0     0.944     95.9
1965.0     0.939     95.9
1966.0     0.933     96.0
1967.0     0.928     96.1
1968.0     0.922     96.2
1969.0     0.916     96.2
1970.0     0.910     96.3
1971.0     0.904     96.4
1972.0     0.898     96.5
1973.0     0.892     96.6
1974.0     0.885     96.6
1975.0     0.879     96.7
1976.0     0.872     96.8
1977.0     0.865     96.9
1978.0     0.858     97.0
1979.0     0.851     97.1
1980.0     0.844     97.2
1981.0     0.837     97.3
1982.0     0.830     97.3
1983.0     0.822     97.4
1984.0     0.815     97.5
1985.0     0.807     97.6
1986.0     0.799     97.7
1987.0     0.791     97.8
1988.0     0.783     97.9
1989.0     0.775     98.0
1990.0     0.767     98.2
1991.0     0.759     98.3
1992.0     0.750     98.4
1993.0     0.742     98.5
1994.0     0.733     98.6
1995.0     0.725     98.7
1996.0     0.716     98.9
1997.0     0.707     99.0
1998.0     0.698     99.1
1999.0     0.689     99.3
2000.0     0.680     99.4
2001.0     0.671     99.5
2002.0     0.661     99.7
2003.0     0.652     99.8
2004.0     0.642    100.0
2005.0     0.633    100.1
2006.0     0.623    100.3
2007.0     0.613    100.5
2008.0     0.603    100.6
2009.0     0.593    100.8
2010.0     0.583    101.0
2011.0     0.573    101.2
2012.0     0.563    101.4
2013.0     0.553    101.6
2014.0     0.543    101.8
2015.0     0.532    102.1
2016.0     0.522    102.3
2017.0     0.511    102.5
2018.0     0.501    102.8
2019.0     0.490    103.0
2020.0     0.479    103.3
2021.0     0.468    103.6
2022.0     0.457    103.9
2023.0     0.447    104.2
2024.0     0.436    104.6
2025.0     0.425    104.9
2026.0     0.414    105.3
2027.0     0.402    105.7
2028.0     0.391    106.1
2029.0     0.380    106.5
2030.0     0.369    107.0
2031.0     0.358    107.5
2032.0     0.346    108.0
2033.0     0.335    108.5
2034.0     0.324    109.1
2035.0     0.313    109.8
2036.0     0.301    110.5
2037.0     0.290    111.2
2038.0     0.279    112.0
2039.0     0.267    112.9
2040.0     0.256    113.8
2041.0     0.245    114.8
2042.0     0.234    116.0
2043.0     0.222    117.2
2044.0     0.211    118.6
2045.0     0.200    120.1
2046.0     0.190    121.8
2047.0     0.179    123.7
2048.0     0.168    125.9
2049.0     0.158    128.3
2050.0     0.148    131.0
2051.0     0.139    134.2
2052.0     0.130    137.8
2053.0     0.121    141.9
2054.0     0.113    146.6
2055.0     0.106    152.0
2056.0     0.100    158.0
2057.0     0.096    164.8
2058.0     0.092    172.1
2059.0     0.091    179.8
2060.0     0.091    187.7
2061.0     0.092    195.4
2062.0     0.096    202.8
2063.0     0.100    209.5
2064.0     0.106    215.6
2065.0     0.113    220.9
2066.0     0.121    225.6
2067.0     0.130    229.7
2068.0     0.139    233.3
2069.0     0.148    236.5
2070.0     0.158    239.2
2071.0     0.169    241.6
2072.0     0.179    243.8
2073.0     0.190    245.7
2074.0     0.200    247.4
2075.0     0.211    248.9
2076.0     0.222    250.3
2077.0     0.234    251.5
2078.0     0.245    252.6
2079.0     0.256    253.7
2080.0     0.267    254.6
2081.0     0.279    255.5
2082.0     0.290    256.3
2083.0     0.301    257.0
2084.0     0.313    257.7
2085.0     0.324    258.4
2086.0     0.335    258.9
2087.0     0.346    259.5
2088.0     0.358    260.0
2089.0     0.369    260.5
2090.0     0.380    261.0
2091.0     0.391    261.4
2092.0     0.402    261.8
2093.0     0.414    262.2
2094.0     0.425    262.6
2095.0     0.436    262.9
2096.0     0.447    263.3
2097.0     0.457    263.6
2098.0     0.468    263.9
2099.0     0.479    264.2
2100.0     0.490    264.4
2101.0     0.500    264.7
2102.0     0.511    264.9
2103.0     0.521    265.2
2104.0     0.532    265.4
2105.0     0.542    265.6
2106.0     0.553    265.9
2107.0     0.563    266.1
2108.0     0.573    266.3
2109.0     0.583    266.5
2110.0     0.593    266.7
2111.0     0.603    266.8
2112.0     0.613    267.0
2113.0     0.623    267.2
2114.0     0.632    267.3
2115.0     0.642    267.5
2116.0     0.651    267.7
2117.0     0.661    267.8
2118.0     0.670    267.9
2119.0     0.679    268.1
2120.0     0.688    268.2
2121.0     0.697    268.4
2122.0     0.706    268.5
2123.0     0.715    268.6
2124.0     0.724    268.7
2125.0     0.732    268.9
2126.0     0.741    269.0
2127.0     0.749    269.1
2128.0     0.757    269.2
2129.0     0.766    269.3
2130.0     0.774    269.4
2131.0     0.782    269.5
2132.0     0.790    269.7
2133.0     0.797    269.8
2134.0     0.805    269.9
2135.0     0.813    270.0
2136.0     0.820    270.1
2137.0     0.827    270.1
2138.0     0.835    270.2
2139.0     0.842    270.3
2140.0     0.849    270.4
2141.0     0.856    270.5
2142.0     0.862    270.6
2143.0     0.869    270.7
2144.0     0.875    270.8
2145.0     0.882    270.9
2146.0     0.888    270.9
2147.0     0.894    271.0
2148.0     0.900    271.1
2149.0     0.906    271.2
2150.0     0.912    271.3
2151.0     0.918    271.3
2152.0     0.924    271.4
2153.0     0.929    271.5
2154.0     0.934    271.6
2155.0     0.940    271.6
2156.0     0.945    271.7
2157.0     0.950    271.8
2158.0     0.954    271.8
2159.0     0.959    271.9
2160.0     0.964    272.0
2161.0     0.968    272.1
2162.0     0.973    272.1
2163.0     0.977    272.2
2164.0     0.981    272.3
2165.0     0.985    272.3
2166.0     0.989    272.4
2167.0     0.993    272.5
2168.0     0.996    272.5
2169.0     1.000    272.6
2170.0     1.003    272.7
2171.0     1.007    272.7
2172.0     1.010    272.8
2173.0     1.013    272.8
2174.0     1.016    272.9
2175.0     1.018    273.0
2176.0     1.021    273.0
2177.0     1.024    273.1
2178.0     1.026    273.2
2179.0     1.028    273.2
2180.0     1.030    273.3
2181.0     1.033    273.3
2182.0     1.034    273.4
2183.0     1.036    273.5
2184.0     1.038    273.5
2185.0     1.039    273.6
2186.0     1.041    273.6
2187.0     1.042    273.7
2188.0     1.043    273.8
2189.0     1.045    273.8
2190.0     1.045    273.9
2191.0     1.046    273.9
2192.0     1.047    274.0
2193.0     1.048    274.1
2194.0     1.048    274.1
2195.0     1.049    274.2
2196.0     1.049    274.2
2197.0     1.049    274.3
2198.0     1.049    274.3
2199.0     1.049    274.4
2200.0     1.049    274.5
2201.0     1.048    274.5
2202.0     1.048    274.6
2203.0     1.047    274.6
2204.0     1.047    274.7
2205.0     1.046    274.8
2206.0     1.045    274.8
2207.0     1.044    274.9
2208.0     1.043    274.9
2209.0     1.042    275.0
2210.0     1.040    275.1
2211.0     1.039    275.1
2212.0     1.037    275.2
2213.0     1.035    275.2
2214.0     1.034    275.3
2215.0     1.032    275.4
2216.0     1.030    275.4
2217.0     1.028    275.5
2218.0     1.025    275.5
2219.0     1.023    275.6
2220.0     1.021    275.7
2221.0     1.018    275.7
2222.0     1.016    275.8
2223.0     1.013    275.8
2224.0     1.010    275.9
2225.0     1.007    276.0
2226.0     1.004    276.0
2227.0     1.001    276.1
2228.0     0.998    276.2
2229.0     0.994    276.2
2230.0     0.991    276.3
2231.0     0.987    276.4
2232.0     0.984    276.4
2233.0     0.980    276.5
2234.0     0.976    276.6
2235.0     0.972    276.6
2236.0     0.968    276.7
2237.0     0.964    276.8
2238.0     0.960    276.8
2239.0     0.955    276.9
2240.0     0.951    277.0
2241.0     0.947    277.1
2242.0     0.942    277.1
2243.0     0.937    277.2
2244.0     0.933    277.3
2245.0     0.928    277.3
2246.0     0.923    277.4
2247.0     0.918    277.5
2248.0     0.913    277.6
2249.0     0.908    277.7
2250.0     0.902    277.7
2251.0     0.897    277.8
2252.0     0.892    277.9
2253.0     0.886    278.0
2254.0     0.880    278.1
2255.0     0.875    278.1
2256.0     0.869    278.2
2257.0     0.863    278.3
2258.0     0.857    278.4
2259.0     0.851    278.5
2260.0     0.845    278.6
2261.0     0.839    278.7
2262.0     0.833    278.8
2263.0     0.826    278.9
2264.0     0.820    279.0
2265.0     0.814    279.0
2266.0     0.807    279.1
2267.0     0.801    279.2
2268.0     0.794    279.3
2269.0     0.787    279.5
2270.0     0.780    279.6
2271.0     0.774    279.7
2272.0     0.767    279.8
2273.0     0.760    279.9
2274.0     0.753    280.0
2275.0     0.746    280.1
2276.0     0.738    280.2
2277.0     0.731    280.3
2278.0     0.724    280.5
2279.0     0.716    280.6
2280.0     0.709    280.7
2281.0     0.702    280.9
2282.0     0.694    281.0
2283.0     0.686    281.1
2284.0     0.679    281.3
2285.0     0.671    281.4
2286.0     0.663    281.5
2287.0     0.655    281.7
2288.0     0.648    281.8
2289.0     0.640    282.0
2290.0     0.632    282.2
2291.0     0.624    282.3
2292.0     0.616    282.5
2293.0     0.608    282.7
2294.0     0.599    282.8
2295.0     0.591    283.0
2296.0     0.583    283.2
2297.0     0.575    283.4
2298.0     0.566    283.6
2299.0     0.558    283.8
2300.0     0.550    284.0
2301.0     0.541    284.2
2302.0     0.533    284.5
2303.0     0.524    284.7
2304.0     0.516    284.9
2305.0     0.507    285.2
2306.0     0.498    285.4
2307.0     0.490    285.7
2308.0     0.481    286.0
2309.0     0.472    286.3
2310.0     0.464    286.6
2311.0     0.455    286.9
2312.0     0.446    287.2
2313.0     0.437    287.5
2314.0     0.428    287.9
2315.0     0.419    288.2
2316.0     0.411    288.6
2317.0     0.402    289.0
2318.0     0.393    289.4
2319.0     0.384    289.8
2320.0     0.375    290.3
2321.0     0.366    290.7
2322.0     0.357    291.2
2323.0     0.348    291.7
2324.0     0.339    292.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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