Double Star Calculator - Orbit

Orbital Elements for STF147
WDS: STF147 WDS ID/Discoverer
P: 627.000 Orbital period (years)
a: 2.5 Semi-major axis (arcseconds)
i: 82.0 Inclination (degrees)
Ω: 86.9 Longitude of ascending node (degrees)
T: 2014.700 Epoch of periastron passage (year)
e: 0.919 Eccentricity
ω: 174.7 Longitude of periastron (degrees)
Start-Year: 1711.5 Year
End-Year: 2338.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF147
Position: 014144.84-111928.9 Epoch-2000 right ascension and declination
WDS-ID: 01417-1119 WDS designation
Discoverer Code: STF147 Discover designation and components
ADS number: 1339 Aitken Double Star catalog
HD number: 10453 HD catalog number
Hipparcos number: 7916 Hipparcos catalog number
V1: 6.14 Magnitude of the primary
V2: 7.17 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 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: FMR2013e Reference

Double Star Orbit for STF147



WDS 6th Orbit including measures of STF147

-- 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 STF147
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.390    72.48
--------------------------
1711.50    4.779    86.25
1712.50    4.778    86.26
1713.50    4.778    86.27
1714.50    4.778    86.28
1715.50    4.777    86.28
1716.50    4.777    86.29
1717.50    4.776    86.30
1718.50    4.775    86.31
1719.50    4.775    86.32
1720.50    4.774    86.33
1721.50    4.773    86.34
1722.50    4.772    86.34
1723.50    4.771    86.35
1724.50    4.770    86.36
1725.50    4.769    86.37
1726.50    4.767    86.38
1727.50    4.766    86.39
1728.50    4.765    86.40
1729.50    4.763    86.40
1730.50    4.762    86.41
1731.50    4.760    86.42
1732.50    4.759    86.43
1733.50    4.757    86.44
1734.50    4.755    86.45
1735.50    4.753    86.46
1736.50    4.751    86.47
1737.50    4.749    86.47
1738.50    4.747    86.48
1739.50    4.745    86.49
1740.50    4.743    86.50
1741.50    4.741    86.51
1742.50    4.739    86.52
1743.50    4.736    86.53
1744.50    4.734    86.54
1745.50    4.731    86.54
1746.50    4.729    86.55
1747.50    4.726    86.56
1748.50    4.723    86.57
1749.50    4.720    86.58
1750.50    4.717    86.59
1751.50    4.714    86.60
1752.50    4.711    86.61
1753.50    4.708    86.62
1754.50    4.705    86.62
1755.50    4.702    86.63
1756.50    4.699    86.64
1757.50    4.695    86.65
1758.50    4.692    86.66
1759.50    4.688    86.67
1760.50    4.685    86.68
1761.50    4.681    86.69
1762.50    4.677    86.70
1763.50    4.674    86.70
1764.50    4.670    86.71
1765.50    4.666    86.72
1766.50    4.662    86.73
1767.50    4.658    86.74
1768.50    4.653    86.75
1769.50    4.649    86.76
1770.50    4.645    86.77
1771.50    4.641    86.78
1772.50    4.636    86.79
1773.50    4.632    86.80
1774.50    4.627    86.80
1775.50    4.622    86.81
1776.50    4.618    86.82
1777.50    4.613    86.83
1778.50    4.608    86.84
1779.50    4.603    86.85
1780.50    4.598    86.86
1781.50    4.593    86.87
1782.50    4.587    86.88
1783.50    4.582    86.89
1784.50    4.577    86.90
1785.50    4.571    86.91
1786.50    4.566    86.92
1787.50    4.560    86.93
1788.50    4.555    86.94
1789.50    4.549    86.94
1790.50    4.543    86.95
1791.50    4.537    86.96
1792.50    4.531    86.97
1793.50    4.525    86.98
1794.50    4.519    86.99
1795.50    4.513    87.00
1796.50    4.507    87.01
1797.50    4.501    87.02
1798.50    4.494    87.03
1799.50    4.488    87.04
1800.50    4.481    87.05
1801.50    4.475    87.06
1802.50    4.468    87.07
1803.50    4.461    87.08
1804.50    4.454    87.09
1805.50    4.447    87.10
1806.50    4.440    87.11
1807.50    4.433    87.12
1808.50    4.426    87.13
1809.50    4.419    87.14
1810.50    4.411    87.15
1811.50    4.404    87.16
1812.50    4.396    87.17
1813.50    4.389    87.18
1814.50    4.381    87.19
1815.50    4.373    87.20
1816.50    4.365    87.21
1817.50    4.358    87.22
1818.50    4.350    87.23
1819.50    4.342    87.24
1820.50    4.333    87.25
1821.50    4.325    87.26
1822.50    4.317    87.27
1823.50    4.308    87.29
1824.50    4.300    87.30
1825.50    4.291    87.31
1826.50    4.283    87.32
1827.50    4.274    87.33
1828.50    4.265    87.34
1829.50    4.256    87.35
1830.50    4.247    87.36
1831.50    4.238    87.37
1832.50    4.229    87.38
1833.50    4.220    87.39
1834.50    4.210    87.40
1835.50    4.201    87.42
1836.50    4.191    87.43
1837.50    4.182    87.44
1838.50    4.172    87.45
1839.50    4.162    87.46
1840.50    4.152    87.47
1841.50    4.142    87.48
1842.50    4.132    87.50
1843.50    4.122    87.51
1844.50    4.112    87.52
1845.50    4.101    87.53
1846.50    4.091    87.54
1847.50    4.080    87.55
1848.50    4.070    87.57
1849.50    4.059    87.58
1850.50    4.048    87.59
1851.50    4.037    87.60
1852.50    4.026    87.61
1853.50    4.015    87.63
1854.50    4.004    87.64
1855.50    3.993    87.65
1856.50    3.981    87.66
1857.50    3.970    87.68
1858.50    3.958    87.69
1859.50    3.947    87.70
1860.50    3.935    87.71
1861.50    3.923    87.73
1862.50    3.911    87.74
1863.50    3.899    87.75
1864.50    3.887    87.76
1865.50    3.874    87.78
1866.50    3.862    87.79
1867.50    3.850    87.80
1868.50    3.837    87.82
1869.50    3.824    87.83
1870.50    3.811    87.84
1871.50    3.799    87.86
1872.50    3.786    87.87
1873.50    3.772    87.89
1874.50    3.759    87.90
1875.50    3.746    87.91
1876.50    3.732    87.93
1877.50    3.719    87.94
1878.50    3.705    87.96
1879.50    3.691    87.97
1880.50    3.678    87.98
1881.50    3.664    88.00
1882.50    3.649    88.01
1883.50    3.635    88.03
1884.50    3.621    88.04
1885.50    3.606    88.06
1886.50    3.592    88.07
1887.50    3.577    88.09
1888.50    3.562    88.10
1889.50    3.547    88.12
1890.50    3.532    88.14
1891.50    3.517    88.15
1892.50    3.502    88.17
1893.50    3.486    88.18
1894.50    3.471    88.20
1895.50    3.455    88.22
1896.50    3.439    88.23
1897.50    3.424    88.25
1898.50    3.407    88.27
1899.50    3.391    88.28
1900.50    3.375    88.30
1901.50    3.359    88.32
1902.50    3.342    88.34
1903.50    3.325    88.35
1904.50    3.308    88.37
1905.50    3.291    88.39
1906.50    3.274    88.41
1907.50    3.257    88.43
1908.50    3.240    88.45
1909.50    3.222    88.46
1910.50    3.205    88.48
1911.50    3.187    88.50
1912.50    3.169    88.52
1913.50    3.151    88.54
1914.50    3.132    88.56
1915.50    3.114    88.58
1916.50    3.095    88.60
1917.50    3.077    88.62
1918.50    3.058    88.64
1919.50    3.039    88.66
1920.50    3.020    88.69
1921.50    3.000    88.71
1922.50    2.981    88.73
1923.50    2.961    88.75
1924.50    2.941    88.78
1925.50    2.921    88.80
1926.50    2.901    88.82
1927.50    2.881    88.84
1928.50    2.860    88.87
1929.50    2.840    88.89
1930.50    2.819    88.92
1931.50    2.798    88.94
1932.50    2.776    88.97
1933.50    2.755    88.99
1934.50    2.733    89.02
1935.50    2.712    89.05
1936.50    2.690    89.07
1937.50    2.667    89.10
1938.50    2.645    89.13
1939.50    2.622    89.16
1940.50    2.600    89.19
1941.50    2.577    89.22
1942.50    2.554    89.25
1943.50    2.530    89.28
1944.50    2.506    89.31
1945.50    2.483    89.34
1946.50    2.459    89.37
1947.50    2.434    89.40
1948.50    2.410    89.44
1949.50    2.385    89.47
1950.50    2.360    89.51
1951.50    2.335    89.54
1952.50    2.309    89.58
1953.50    2.284    89.62
1954.50    2.258    89.65
1955.50    2.231    89.69
1956.50    2.205    89.73
1957.50    2.178    89.77
1958.50    2.151    89.82
1959.50    2.124    89.86
1960.50    2.096    89.90
1961.50    2.068    89.95
1962.50    2.040    90.00
1963.50    2.011    90.04
1964.50    1.983    90.09
1965.50    1.954    90.14
1966.50    1.924    90.20
1967.50    1.894    90.25
1968.50    1.864    90.31
1969.50    1.834    90.36
1970.50    1.803    90.42
1971.50    1.771    90.48
1972.50    1.740    90.55
1973.50    1.708    90.62
1974.50    1.675    90.68
1975.50    1.643    90.76
1976.50    1.609    90.83
1977.50    1.576    90.91
1978.50    1.542    90.99
1979.50    1.507    91.07
1980.50    1.472    91.16
1981.50    1.436    91.26
1982.50    1.400    91.35
1983.50    1.364    91.46
1984.50    1.327    91.56
1985.50    1.289    91.68
1986.50    1.250    91.80
1987.50    1.212    91.93
1988.50    1.172    92.07
1989.50    1.132    92.22
1990.50    1.091    92.38
1991.50    1.049    92.55
1992.50    1.006    92.74
1993.50    0.963    92.94
1994.50    0.919    93.16
1995.50    0.874    93.41
1996.50    0.828    93.68
1997.50    0.781    93.98
1998.50    0.733    94.33
1999.50    0.684    94.72
2000.50    0.633    95.18
2001.50    0.581    95.71
2002.50    0.528    96.35
2003.50    0.474    97.14
2004.50    0.418    98.13
2005.50    0.360    99.44
2006.50    0.301   101.26
2007.50    0.240   103.99
2008.50    0.177   108.63
2009.50    0.115   118.31
2010.50    0.061   147.43
2011.50    0.059   217.63
2012.50    0.111   248.68
2013.50    0.165   259.32
2014.50    0.199   265.18
2015.50    0.199   270.01
2016.50    0.170   275.73
2017.50    0.125   284.92
2018.50    0.081   304.63
2019.50    0.059   351.04
2020.50    0.084    35.20
2021.50    0.131    53.32
2022.50    0.183    61.53
2023.50    0.236    66.08
2024.50    0.288    68.98
2025.50    0.339    70.99
2026.50    0.390    72.48
2027.50    0.439    73.63
2028.50    0.488    74.55
2029.50    0.535    75.30
2030.50    0.581    75.93
2031.50    0.627    76.47
2032.50    0.671    76.94
2033.50    0.715    77.35
2034.50    0.758    77.71
2035.50    0.800    78.04
2036.50    0.842    78.33
2037.50    0.883    78.60
2038.50    0.923    78.84
2039.50    0.962    79.06
2040.50    1.001    79.26
2041.50    1.039    79.45
2042.50    1.077    79.63
2043.50    1.114    79.79
2044.50    1.151    79.95
2045.50    1.187    80.09
2046.50    1.223    80.23
2047.50    1.258    80.35
2048.50    1.293    80.48
2049.50    1.327    80.59
2050.50    1.361    80.70
2051.50    1.394    80.80
2052.50    1.427    80.90
2053.50    1.460    81.00
2054.50    1.492    81.09
2055.50    1.524    81.17
2056.50    1.555    81.26
2057.50    1.587    81.34
2058.50    1.617    81.41
2059.50    1.648    81.49
2060.50    1.678    81.56
2061.50    1.708    81.63
2062.50    1.737    81.69
2063.50    1.766    81.76
2064.50    1.795    81.82
2065.50    1.824    81.88
2066.50    1.852    81.94
2067.50    1.880    81.99
2068.50    1.908    82.05
2069.50    1.936    82.10
2070.50    1.963    82.15
2071.50    1.990    82.21
2072.50    2.017    82.25
2073.50    2.043    82.30
2074.50    2.069    82.35
2075.50    2.095    82.39
2076.50    2.121    82.44
2077.50    2.147    82.48
2078.50    2.172    82.52
2079.50    2.197    82.57
2080.50    2.222    82.61
2081.50    2.246    82.65
2082.50    2.271    82.68
2083.50    2.295    82.72
2084.50    2.319    82.76
2085.50    2.343    82.79
2086.50    2.366    82.83
2087.50    2.390    82.87
2088.50    2.413    82.90
2089.50    2.436    82.93
2090.50    2.459    82.97
2091.50    2.481    83.00
2092.50    2.504    83.03
2093.50    2.526    83.06
2094.50    2.548    83.09
2095.50    2.570    83.12
2096.50    2.592    83.15
2097.50    2.613    83.18
2098.50    2.635    83.21
2099.50    2.656    83.24
2100.50    2.677    83.26
2101.50    2.698    83.29
2102.50    2.718    83.32
2103.50    2.739    83.34
2104.50    2.759    83.37
2105.50    2.780    83.40
2106.50    2.800    83.42
2107.50    2.820    83.45
2108.50    2.839    83.47
2109.50    2.859    83.50
2110.50    2.878    83.52
2111.50    2.898    83.54
2112.50    2.917    83.57
2113.50    2.936    83.59
2114.50    2.955    83.61
2115.50    2.974    83.63
2116.50    2.992    83.66
2117.50    3.011    83.68
2118.50    3.029    83.70
2119.50    3.047    83.72
2120.50    3.065    83.74
2121.50    3.083    83.76
2122.50    3.101    83.78
2123.50    3.119    83.80
2124.50    3.136    83.82
2125.50    3.154    83.84
2126.50    3.171    83.86
2127.50    3.188    83.88
2128.50    3.205    83.90
2129.50    3.222    83.92
2130.50    3.239    83.94
2131.50    3.255    83.96
2132.50    3.272    83.98
2133.50    3.288    84.00
2134.50    3.304    84.01
2135.50    3.321    84.03
2136.50    3.337    84.05
2137.50    3.353    84.07
2138.50    3.368    84.09
2139.50    3.384    84.10
2140.50    3.400    84.12
2141.50    3.415    84.14
2142.50    3.430    84.15
2143.50    3.446    84.17
2144.50    3.461    84.19
2145.50    3.476    84.20
2146.50    3.491    84.22
2147.50    3.505    84.24
2148.50    3.520    84.25
2149.50    3.535    84.27
2150.50    3.549    84.28
2151.50    3.563    84.30
2152.50    3.578    84.31
2153.50    3.592    84.33
2154.50    3.606    84.34
2155.50    3.620    84.36
2156.50    3.634    84.37
2157.50    3.647    84.39
2158.50    3.661    84.40
2159.50    3.674    84.42
2160.50    3.688    84.43
2161.50    3.701    84.45
2162.50    3.714    84.46
2163.50    3.728    84.48
2164.50    3.741    84.49
2165.50    3.754    84.50
2166.50    3.766    84.52
2167.50    3.779    84.53
2168.50    3.792    84.55
2169.50    3.804    84.56
2170.50    3.817    84.57
2171.50    3.829    84.59
2172.50    3.841    84.60
2173.50    3.853    84.61
2174.50    3.865    84.63
2175.50    3.877    84.64
2176.50    3.889    84.65
2177.50    3.901    84.67
2178.50    3.913    84.68
2179.50    3.924    84.69
2180.50    3.936    84.70
2181.50    3.947    84.72
2182.50    3.959    84.73
2183.50    3.970    84.74
2184.50    3.981    84.75
2185.50    3.992    84.77
2186.50    4.003    84.78
2187.50    4.014    84.79
2188.50    4.025    84.80
2189.50    4.035    84.82
2190.50    4.046    84.83
2191.50    4.057    84.84
2192.50    4.067    84.85
2193.50    4.077    84.86
2194.50    4.088    84.88
2195.50    4.098    84.89
2196.50    4.108    84.90
2197.50    4.118    84.91
2198.50    4.128    84.92
2199.50    4.138    84.93
2200.50    4.147    84.94
2201.50    4.157    84.96
2202.50    4.167    84.97
2203.50    4.176    84.98
2204.50    4.186    84.99
2205.50    4.195    85.00
2206.50    4.204    85.01
2207.50    4.213    85.02
2208.50    4.223    85.03
2209.50    4.232    85.05
2210.50    4.241    85.06
2211.50    4.249    85.07
2212.50    4.258    85.08
2213.50    4.267    85.09
2214.50    4.275    85.10
2215.50    4.284    85.11
2216.50    4.292    85.12
2217.50    4.301    85.13
2218.50    4.309    85.14
2219.50    4.317    85.15
2220.50    4.326    85.16
2221.50    4.334    85.17
2222.50    4.342    85.19
2223.50    4.350    85.20
2224.50    4.357    85.21
2225.50    4.365    85.22
2226.50    4.373    85.23
2227.50    4.380    85.24
2228.50    4.388    85.25
2229.50    4.395    85.26
2230.50    4.403    85.27
2231.50    4.410    85.28
2232.50    4.417    85.29
2233.50    4.424    85.30
2234.50    4.431    85.31
2235.50    4.438    85.32
2236.50    4.445    85.33
2237.50    4.452    85.34
2238.50    4.459    85.35
2239.50    4.466    85.36
2240.50    4.472    85.37
2241.50    4.479    85.38
2242.50    4.485    85.39
2243.50    4.492    85.40
2244.50    4.498    85.41
2245.50    4.504    85.42
2246.50    4.510    85.43
2247.50    4.517    85.44
2248.50    4.523    85.45
2249.50    4.529    85.45
2250.50    4.534    85.46
2251.50    4.540    85.47
2252.50    4.546    85.48
2253.50    4.552    85.49
2254.50    4.557    85.50
2255.50    4.563    85.51
2256.50    4.568    85.52
2257.50    4.574    85.53
2258.50    4.579    85.54
2259.50    4.584    85.55
2260.50    4.589    85.56
2261.50    4.594    85.57
2262.50    4.599    85.58
2263.50    4.604    85.59
2264.50    4.609    85.60
2265.50    4.614    85.61
2266.50    4.619    85.61
2267.50    4.624    85.62
2268.50    4.628    85.63
2269.50    4.633    85.64
2270.50    4.637    85.65
2271.50    4.641    85.66
2272.50    4.646    85.67
2273.50    4.650    85.68
2274.50    4.654    85.69
2275.50    4.658    85.70
2276.50    4.662    85.71
2277.50    4.666    85.72
2278.50    4.670    85.72
2279.50    4.674    85.73
2280.50    4.678    85.74
2281.50    4.681    85.75
2282.50    4.685    85.76
2283.50    4.689    85.77
2284.50    4.692    85.78
2285.50    4.696    85.79
2286.50    4.699    85.80
2287.50    4.702    85.80
2288.50    4.705    85.81
2289.50    4.708    85.82
2290.50    4.712    85.83
2291.50    4.715    85.84
2292.50    4.717    85.85
2293.50    4.720    85.86
2294.50    4.723    85.87
2295.50    4.726    85.88
2296.50    4.729    85.88
2297.50    4.731    85.89
2298.50    4.734    85.90
2299.50    4.736    85.91
2300.50    4.738    85.92
2301.50    4.741    85.93
2302.50    4.743    85.94
2303.50    4.745    85.95
2304.50    4.747    85.95
2305.50    4.749    85.96
2306.50    4.751    85.97
2307.50    4.753    85.98
2308.50    4.755    85.99
2309.50    4.757    86.00
2310.50    4.759    86.01
2311.50    4.760    86.02
2312.50    4.762    86.02
2313.50    4.763    86.03
2314.50    4.765    86.04
2315.50    4.766    86.05
2316.50    4.767    86.06
2317.50    4.769    86.07
2318.50    4.770    86.08
2319.50    4.771    86.09
2320.50    4.772    86.09
2321.50    4.773    86.10
2322.50    4.774    86.11
2323.50    4.774    86.12
2324.50    4.775    86.13
2325.50    4.776    86.14
2326.50    4.776    86.15
2327.50    4.777    86.15
2328.50    4.778    86.16
2329.50    4.778    86.17
2330.50    4.778    86.18
2331.50    4.779    86.19
2332.50    4.779    86.20
2333.50    4.779    86.21
2334.50    4.779    86.21
2335.50    4.779    86.22
2336.50    4.779    86.23
2337.50    4.779    86.24






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 14:52:53



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