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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:13:51

Orbital Elements for STF1687AB
WDS: STF1687AB WDS ID/Discoverer
P: 486.348 Orbital period (years)
a: 1.34595 Semi-major axis (arcseconds)
i: 34.132 Inclination (degrees)
Ω: 60.531 Longitude of ascending node (degrees)
T: 1929.221 Epoch of periastron passage (year)
e: 0.14466 Eccentricity
ω: 51.278 Longitude of periastron (degrees)
Start-Year: 1782.0 Year
End-Year: 2268.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1687AB
Position: 125317.77+211442.1 Epoch-2000 right ascension and declination
WDS-ID: 12533+2115 WDS designation
Discoverer Code: STF1687AB Discover designation and components
ADS number: 8695 Aitken Double Star catalog
HD number: 112033 HD catalog number
Hipparcos number: 62886 Hipparcos catalog number
V1: 5.15 Magnitude of the primary
V2: 7.08 Magnitude of the secondary
Equinox: Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1687AB



WDS 6th Orbit including measures of STF1687AB

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


Ephemeris of STF1687AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.215    204.4
-------------------------
1782.0     1.211    351.6
1783.0     1.211    352.3
1784.0     1.211    353.1
1785.0     1.211    353.8
1786.0     1.211    354.6
1787.0     1.211    355.3
1788.0     1.211    356.1
1789.0     1.211    356.8
1790.0     1.211    357.6
1791.0     1.212    358.3
1792.0     1.212    359.1
1793.0     1.212    359.8
1794.0     1.213      0.6
1795.0     1.213      1.3
1796.0     1.213      2.0
1797.0     1.214      2.8
1798.0     1.214      3.5
1799.0     1.215      4.3
1800.0     1.215      5.0
1801.0     1.216      5.8
1802.0     1.216      6.5
1803.0     1.217      7.3
1804.0     1.217      8.0
1805.0     1.218      8.7
1806.0     1.219      9.5
1807.0     1.219     10.2
1808.0     1.220     11.0
1809.0     1.221     11.7
1810.0     1.221     12.4
1811.0     1.222     13.2
1812.0     1.223     13.9
1813.0     1.223     14.6
1814.0     1.224     15.4
1815.0     1.225     16.1
1816.0     1.225     16.8
1817.0     1.226     17.6
1818.0     1.227     18.3
1819.0     1.227     19.0
1820.0     1.228     19.7
1821.0     1.229     20.5
1822.0     1.229     21.2
1823.0     1.230     21.9
1824.0     1.231     22.7
1825.0     1.231     23.4
1826.0     1.232     24.1
1827.0     1.232     24.8
1828.0     1.233     25.6
1829.0     1.233     26.3
1830.0     1.234     27.0
1831.0     1.234     27.7
1832.0     1.235     28.4
1833.0     1.235     29.2
1834.0     1.236     29.9
1835.0     1.236     30.6
1836.0     1.236     31.3
1837.0     1.237     32.0
1838.0     1.237     32.7
1839.0     1.237     33.5
1840.0     1.238     34.2
1841.0     1.238     34.9
1842.0     1.238     35.6
1843.0     1.238     36.3
1844.0     1.238     37.1
1845.0     1.238     37.8
1846.0     1.238     38.5
1847.0     1.238     39.2
1848.0     1.238     39.9
1849.0     1.237     40.6
1850.0     1.237     41.4
1851.0     1.237     42.1
1852.0     1.236     42.8
1853.0     1.236     43.5
1854.0     1.236     44.2
1855.0     1.235     44.9
1856.0     1.234     45.7
1857.0     1.234     46.4
1858.0     1.233     47.1
1859.0     1.232     47.8
1860.0     1.231     48.6
1861.0     1.231     49.3
1862.0     1.230     50.0
1863.0     1.229     50.7
1864.0     1.227     51.5
1865.0     1.226     52.2
1866.0     1.225     52.9
1867.0     1.224     53.7
1868.0     1.222     54.4
1869.0     1.221     55.1
1870.0     1.219     55.9
1871.0     1.218     56.6
1872.0     1.216     57.3
1873.0     1.215     58.1
1874.0     1.213     58.8
1875.0     1.211     59.6
1876.0     1.209     60.3
1877.0     1.207     61.1
1878.0     1.205     61.8
1879.0     1.203     62.6
1880.0     1.201     63.4
1881.0     1.198     64.1
1882.0     1.196     64.9
1883.0     1.193     65.7
1884.0     1.191     66.4
1885.0     1.188     67.2
1886.0     1.186     68.0
1887.0     1.183     68.8
1888.0     1.180     69.6
1889.0     1.178     70.3
1890.0     1.175     71.1
1891.0     1.172     71.9
1892.0     1.169     72.7
1893.0     1.166     73.5
1894.0     1.163     74.4
1895.0     1.159     75.2
1896.0     1.156     76.0
1897.0     1.153     76.8
1898.0     1.150     77.6
1899.0     1.146     78.5
1900.0     1.143     79.3
1901.0     1.139     80.2
1902.0     1.136     81.0
1903.0     1.132     81.9
1904.0     1.129     82.7
1905.0     1.125     83.6
1906.0     1.121     84.5
1907.0     1.118     85.3
1908.0     1.114     86.2
1909.0     1.110     87.1
1910.0     1.107     88.0
1911.0     1.103     88.9
1912.0     1.099     89.8
1913.0     1.095     90.7
1914.0     1.091     91.6
1915.0     1.088     92.6
1916.0     1.084     93.5
1917.0     1.080     94.4
1918.0     1.076     95.4
1919.0     1.072     96.3
1920.0     1.069     97.3
1921.0     1.065     98.2
1922.0     1.061     99.2
1923.0     1.057    100.2
1924.0     1.054    101.2
1925.0     1.050    102.2
1926.0     1.046    103.2
1927.0     1.043    104.2
1928.0     1.039    105.2
1929.0     1.036    106.2
1930.0     1.032    107.2
1931.0     1.029    108.3
1932.0     1.026    109.3
1933.0     1.023    110.4
1934.0     1.019    111.4
1935.0     1.016    112.5
1936.0     1.013    113.5
1937.0     1.010    114.6
1938.0     1.007    115.7
1939.0     1.005    116.8
1940.0     1.002    117.9
1941.0     1.000    119.0
1942.0     0.997    120.1
1943.0     0.995    121.2
1944.0     0.993    122.3
1945.0     0.990    123.4
1946.0     0.988    124.5
1947.0     0.987    125.7
1948.0     0.985    126.8
1949.0     0.983    127.9
1950.0     0.982    129.1
1951.0     0.980    130.2
1952.0     0.979    131.3
1953.0     0.978    132.5
1954.0     0.977    133.6
1955.0     0.976    134.8
1956.0     0.976    135.9
1957.0     0.975    137.1
1958.0     0.975    138.3
1959.0     0.975    139.4
1960.0     0.974    140.6
1961.0     0.975    141.7
1962.0     0.975    142.9
1963.0     0.975    144.0
1964.0     0.976    145.2
1965.0     0.976    146.3
1966.0     0.977    147.5
1967.0     0.978    148.6
1968.0     0.979    149.8
1969.0     0.981    150.9
1970.0     0.982    152.1
1971.0     0.984    153.2
1972.0     0.985    154.3
1973.0     0.987    155.5
1974.0     0.989    156.6
1975.0     0.992    157.7
1976.0     0.994    158.8
1977.0     0.996    159.9
1978.0     0.999    161.0
1979.0     1.002    162.1
1980.0     1.004    163.2
1981.0     1.007    164.3
1982.0     1.011    165.4
1983.0     1.014    166.5
1984.0     1.017    167.5
1985.0     1.021    168.6
1986.0     1.024    169.6
1987.0     1.028    170.7
1988.0     1.032    171.7
1989.0     1.036    172.8
1990.0     1.040    173.8
1991.0     1.044    174.8
1992.0     1.048    175.8
1993.0     1.052    176.8
1994.0     1.056    177.8
1995.0     1.061    178.8
1996.0     1.065    179.7
1997.0     1.070    180.7
1998.0     1.075    181.6
1999.0     1.079    182.6
2000.0     1.084    183.5
2001.0     1.089    184.5
2002.0     1.094    185.4
2003.0     1.099    186.3
2004.0     1.104    187.2
2005.0     1.109    188.1
2006.0     1.114    189.0
2007.0     1.119    189.9
2008.0     1.125    190.7
2009.0     1.130    191.6
2010.0     1.135    192.5
2011.0     1.140    193.3
2012.0     1.146    194.1
2013.0     1.151    195.0
2014.0     1.156    195.8
2015.0     1.162    196.6
2016.0     1.167    197.4
2017.0     1.172    198.2
2018.0     1.178    199.0
2019.0     1.183    199.8
2020.0     1.189    200.6
2021.0     1.194    201.4
2022.0     1.199    202.1
2023.0     1.205    202.9
2024.0     1.210    203.7
2025.0     1.215    204.4
2026.0     1.221    205.1
2027.0     1.226    205.9
2028.0     1.231    206.6
2029.0     1.237    207.3
2030.0     1.242    208.0
2031.0     1.247    208.7
2032.0     1.252    209.5
2033.0     1.257    210.2
2034.0     1.263    210.8
2035.0     1.268    211.5
2036.0     1.273    212.2
2037.0     1.278    212.9
2038.0     1.283    213.6
2039.0     1.288    214.2
2040.0     1.292    214.9
2041.0     1.297    215.5
2042.0     1.302    216.2
2043.0     1.307    216.8
2044.0     1.311    217.5
2045.0     1.316    218.1
2046.0     1.321    218.7
2047.0     1.325    219.4
2048.0     1.330    220.0
2049.0     1.334    220.6
2050.0     1.339    221.2
2051.0     1.343    221.8
2052.0     1.347    222.4
2053.0     1.351    223.0
2054.0     1.355    223.6
2055.0     1.360    224.2
2056.0     1.364    224.8
2057.0     1.367    225.4
2058.0     1.371    226.0
2059.0     1.375    226.6
2060.0     1.379    227.2
2061.0     1.383    227.7
2062.0     1.386    228.3
2063.0     1.390    228.9
2064.0     1.393    229.5
2065.0     1.397    230.0
2066.0     1.400    230.6
2067.0     1.403    231.1
2068.0     1.407    231.7
2069.0     1.410    232.3
2070.0     1.413    232.8
2071.0     1.416    233.4
2072.0     1.419    233.9
2073.0     1.421    234.4
2074.0     1.424    235.0
2075.0     1.427    235.5
2076.0     1.430    236.1
2077.0     1.432    236.6
2078.0     1.435    237.1
2079.0     1.437    237.7
2080.0     1.439    238.2
2081.0     1.442    238.7
2082.0     1.444    239.3
2083.0     1.446    239.8
2084.0     1.448    240.3
2085.0     1.450    240.8
2086.0     1.452    241.4
2087.0     1.454    241.9
2088.0     1.456    242.4
2089.0     1.457    242.9
2090.0     1.459    243.4
2091.0     1.460    243.9
2092.0     1.462    244.5
2093.0     1.463    245.0
2094.0     1.465    245.5
2095.0     1.466    246.0
2096.0     1.467    246.5
2097.0     1.468    247.0
2098.0     1.469    247.5
2099.0     1.470    248.0
2100.0     1.471    248.5
2101.0     1.472    249.0
2102.0     1.473    249.6
2103.0     1.473    250.1
2104.0     1.474    250.6
2105.0     1.474    251.1
2106.0     1.475    251.6
2107.0     1.475    252.1
2108.0     1.476    252.6
2109.0     1.476    253.1
2110.0     1.476    253.6
2111.0     1.476    254.1
2112.0     1.476    254.6
2113.0     1.476    255.1
2114.0     1.476    255.6
2115.0     1.476    256.1
2116.0     1.476    256.6
2117.0     1.476    257.1
2118.0     1.476    257.6
2119.0     1.475    258.1
2120.0     1.475    258.6
2121.0     1.474    259.1
2122.0     1.474    259.6
2123.0     1.473    260.2
2124.0     1.472    260.7
2125.0     1.472    261.2
2126.0     1.471    261.7
2127.0     1.470    262.2
2128.0     1.469    262.7
2129.0     1.468    263.2
2130.0     1.467    263.7
2131.0     1.466    264.2
2132.0     1.465    264.7
2133.0     1.464    265.2
2134.0     1.463    265.8
2135.0     1.461    266.3
2136.0     1.460    266.8
2137.0     1.459    267.3
2138.0     1.457    267.8
2139.0     1.456    268.3
2140.0     1.454    268.9
2141.0     1.453    269.4
2142.0     1.451    269.9
2143.0     1.450    270.4
2144.0     1.448    270.9
2145.0     1.446    271.5
2146.0     1.444    272.0
2147.0     1.443    272.5
2148.0     1.441    273.0
2149.0     1.439    273.6
2150.0     1.437    274.1
2151.0     1.435    274.6
2152.0     1.433    275.2
2153.0     1.431    275.7
2154.0     1.429    276.2
2155.0     1.427    276.8
2156.0     1.424    277.3
2157.0     1.422    277.9
2158.0     1.420    278.4
2159.0     1.418    279.0
2160.0     1.415    279.5
2161.0     1.413    280.1
2162.0     1.411    280.6
2163.0     1.408    281.2
2164.0     1.406    281.7
2165.0     1.404    282.3
2166.0     1.401    282.8
2167.0     1.399    283.4
2168.0     1.396    283.9
2169.0     1.394    284.5
2170.0     1.391    285.1
2171.0     1.389    285.6
2172.0     1.386    286.2
2173.0     1.384    286.8
2174.0     1.381    287.4
2175.0     1.378    287.9
2176.0     1.376    288.5
2177.0     1.373    289.1
2178.0     1.371    289.7
2179.0     1.368    290.3
2180.0     1.365    290.9
2181.0     1.363    291.5
2182.0     1.360    292.0
2183.0     1.357    292.6
2184.0     1.355    293.2
2185.0     1.352    293.8
2186.0     1.349    294.4
2187.0     1.347    295.0
2188.0     1.344    295.6
2189.0     1.341    296.3
2190.0     1.338    296.9
2191.0     1.336    297.5
2192.0     1.333    298.1
2193.0     1.330    298.7
2194.0     1.328    299.3
2195.0     1.325    300.0
2196.0     1.322    300.6
2197.0     1.320    301.2
2198.0     1.317    301.9
2199.0     1.315    302.5
2200.0     1.312    303.1
2201.0     1.309    303.8
2202.0     1.307    304.4
2203.0     1.304    305.1
2204.0     1.302    305.7
2205.0     1.299    306.3
2206.0     1.297    307.0
2207.0     1.294    307.7
2208.0     1.292    308.3
2209.0     1.289    309.0
2210.0     1.287    309.6
2211.0     1.285    310.3
2212.0     1.282    311.0
2213.0     1.280    311.6
2214.0     1.277    312.3
2215.0     1.275    313.0
2216.0     1.273    313.7
2217.0     1.271    314.3
2218.0     1.269    315.0
2219.0     1.266    315.7
2220.0     1.264    316.4
2221.0     1.262    317.1
2222.0     1.260    317.8
2223.0     1.258    318.5
2224.0     1.256    319.2
2225.0     1.254    319.8
2226.0     1.252    320.5
2227.0     1.250    321.2
2228.0     1.248    322.0
2229.0     1.247    322.7
2230.0     1.245    323.4
2231.0     1.243    324.1
2232.0     1.241    324.8
2233.0     1.240    325.5
2234.0     1.238    326.2
2235.0     1.237    326.9
2236.0     1.235    327.7
2237.0     1.234    328.4
2238.0     1.232    329.1
2239.0     1.231    329.8
2240.0     1.230    330.5
2241.0     1.228    331.3
2242.0     1.227    332.0
2243.0     1.226    332.7
2244.0     1.225    333.5
2245.0     1.224    334.2
2246.0     1.222    334.9
2247.0     1.221    335.7
2248.0     1.220    336.4
2249.0     1.220    337.1
2250.0     1.219    337.9
2251.0     1.218    338.6
2252.0     1.217    339.4
2253.0     1.216    340.1
2254.0     1.216    340.8
2255.0     1.215    341.6
2256.0     1.214    342.3
2257.0     1.214    343.1
2258.0     1.213    343.8
2259.0     1.213    344.6
2260.0     1.212    345.3
2261.0     1.212    346.1
2262.0     1.212    346.8
2263.0     1.211    347.6
2264.0     1.211    348.3
2265.0     1.211    349.1
2266.0     1.211    349.8
2267.0     1.211    350.6






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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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