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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:25:39

Orbital Elements for STT21
WDS: STT21 WDS ID/Discoverer
P: 450.000 Orbital period (years)
a: 0.816 Semi-major axis (arcseconds)
i: 87.0 Inclination (degrees)
Ω: 176.7 Longitude of ascending node (degrees)
T: 1902.000 Epoch of periastron passage (year)
e: 0.8 Eccentricity
ω: 180.0 Longitude of periastron (degrees)
Start-Year: 1800.0 Year
End-Year: 2250.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT21
Position: 010301.54+472234.1 Epoch-2000 right ascension and declination
WDS-ID: 01030+4723 WDS designation
Discoverer Code: STT21 Discover designation and components
ADS number: 862 Aitken Double Star catalog
HD number: 6114 HD catalog number
Hipparcos number: 4911 Hipparcos catalog number
V1: 6.76 Magnitude of the primary
V2: 8.07 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1964 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT21



WDS 6th Orbit including measures of STT21

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


Ephemeris of STT21
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.202    175.8
-------------------------
1800.0     1.072    177.9
1801.0     1.065    177.9
1802.0     1.058    177.9
1803.0     1.051    177.9
1804.0     1.044    177.9
1805.0     1.037    177.9
1806.0     1.029    178.0
1807.0     1.022    178.0
1808.0     1.015    178.0
1809.0     1.007    178.0
1810.0     0.999    178.0
1811.0     0.992    178.0
1812.0     0.984    178.1
1813.0     0.976    178.1
1814.0     0.968    178.1
1815.0     0.960    178.1
1816.0     0.952    178.1
1817.0     0.943    178.2
1818.0     0.935    178.2
1819.0     0.927    178.2
1820.0     0.918    178.2
1821.0     0.910    178.2
1822.0     0.901    178.3
1823.0     0.892    178.3
1824.0     0.883    178.3
1825.0     0.874    178.3
1826.0     0.865    178.3
1827.0     0.856    178.4
1828.0     0.847    178.4
1829.0     0.837    178.4
1830.0     0.828    178.4
1831.0     0.818    178.5
1832.0     0.809    178.5
1833.0     0.799    178.5
1834.0     0.789    178.5
1835.0     0.779    178.6
1836.0     0.769    178.6
1837.0     0.759    178.6
1838.0     0.749    178.6
1839.0     0.738    178.7
1840.0     0.728    178.7
1841.0     0.717    178.7
1842.0     0.706    178.8
1843.0     0.696    178.8
1844.0     0.685    178.8
1845.0     0.674    178.9
1846.0     0.662    178.9
1847.0     0.651    179.0
1848.0     0.640    179.0
1849.0     0.628    179.0
1850.0     0.616    179.1
1851.0     0.604    179.1
1852.0     0.592    179.2
1853.0     0.580    179.2
1854.0     0.568    179.3
1855.0     0.555    179.3
1856.0     0.543    179.4
1857.0     0.530    179.4
1858.0     0.517    179.5
1859.0     0.504    179.6
1860.0     0.491    179.6
1861.0     0.478    179.7
1862.0     0.464    179.8
1863.0     0.450    179.9
1864.0     0.437    179.9
1865.0     0.423    180.0
1866.0     0.408    180.1
1867.0     0.394    180.2
1868.0     0.379    180.3
1869.0     0.365    180.5
1870.0     0.350    180.6
1871.0     0.335    180.7
1872.0     0.319    180.9
1873.0     0.304    181.1
1874.0     0.288    181.3
1875.0     0.272    181.5
1876.0     0.256    181.7
1877.0     0.240    182.0
1878.0     0.223    182.3
1879.0     0.206    182.7
1880.0     0.189    183.1
1881.0     0.172    183.6
1882.0     0.154    184.2
1883.0     0.137    185.0
1884.0     0.119    186.1
1885.0     0.101    187.5
1886.0     0.083    189.5
1887.0     0.065    192.6
1888.0     0.047    198.2
1889.0     0.029    210.4
1890.0     0.017    247.3
1891.0     0.020    309.0
1892.0     0.035    333.5
1893.0     0.053    342.5
1894.0     0.071    347.0
1895.0     0.088    349.7
1896.0     0.105    351.5
1897.0     0.120    352.8
1898.0     0.135    353.8
1899.0     0.146    354.7
1900.0     0.155    355.4
1901.0     0.161    356.1
1902.0     0.163    356.7
1903.0     0.161    357.3
1904.0     0.155    358.0
1905.0     0.146    358.7
1906.0     0.135    359.6
1907.0     0.120      0.6
1908.0     0.105      1.9
1909.0     0.088      3.7
1910.0     0.071      6.4
1911.0     0.053     10.9
1912.0     0.035     19.9
1913.0     0.020     44.4
1914.0     0.017    106.1
1915.0     0.029    143.0
1916.0     0.047    155.2
1917.0     0.065    160.8
1918.0     0.083    163.9
1919.0     0.101    165.9
1920.0     0.119    167.3
1921.0     0.137    168.4
1922.0     0.154    169.2
1923.0     0.172    169.8
1924.0     0.189    170.3
1925.0     0.206    170.7
1926.0     0.223    171.1
1927.0     0.240    171.4
1928.0     0.256    171.7
1929.0     0.272    171.9
1930.0     0.288    172.1
1931.0     0.304    172.3
1932.0     0.319    172.5
1933.0     0.335    172.7
1934.0     0.350    172.8
1935.0     0.365    172.9
1936.0     0.379    173.1
1937.0     0.394    173.2
1938.0     0.408    173.3
1939.0     0.423    173.4
1940.0     0.437    173.5
1941.0     0.450    173.5
1942.0     0.464    173.6
1943.0     0.478    173.7
1944.0     0.491    173.8
1945.0     0.504    173.8
1946.0     0.517    173.9
1947.0     0.530    174.0
1948.0     0.543    174.0
1949.0     0.555    174.1
1950.0     0.568    174.1
1951.0     0.580    174.2
1952.0     0.592    174.2
1953.0     0.604    174.3
1954.0     0.616    174.3
1955.0     0.628    174.4
1956.0     0.640    174.4
1957.0     0.651    174.4
1958.0     0.662    174.5
1959.0     0.674    174.5
1960.0     0.685    174.6
1961.0     0.696    174.6
1962.0     0.706    174.6
1963.0     0.717    174.7
1964.0     0.728    174.7
1965.0     0.738    174.7
1966.0     0.749    174.8
1967.0     0.759    174.8
1968.0     0.769    174.8
1969.0     0.779    174.8
1970.0     0.789    174.9
1971.0     0.799    174.9
1972.0     0.809    174.9
1973.0     0.818    174.9
1974.0     0.828    175.0
1975.0     0.837    175.0
1976.0     0.847    175.0
1977.0     0.856    175.0
1978.0     0.865    175.1
1979.0     0.874    175.1
1980.0     0.883    175.1
1981.0     0.892    175.1
1982.0     0.901    175.1
1983.0     0.910    175.2
1984.0     0.918    175.2
1985.0     0.927    175.2
1986.0     0.935    175.2
1987.0     0.943    175.2
1988.0     0.952    175.3
1989.0     0.960    175.3
1990.0     0.968    175.3
1991.0     0.976    175.3
1992.0     0.984    175.3
1993.0     0.992    175.4
1994.0     0.999    175.4
1995.0     1.007    175.4
1996.0     1.015    175.4
1997.0     1.022    175.4
1998.0     1.029    175.4
1999.0     1.037    175.5
2000.0     1.044    175.5
2001.0     1.051    175.5
2002.0     1.058    175.5
2003.0     1.065    175.5
2004.0     1.072    175.5
2005.0     1.079    175.5
2006.0     1.086    175.6
2007.0     1.093    175.6
2008.0     1.099    175.6
2009.0     1.106    175.6
2010.0     1.113    175.6
2011.0     1.119    175.6
2012.0     1.125    175.6
2013.0     1.132    175.6
2014.0     1.138    175.7
2015.0     1.144    175.7
2016.0     1.150    175.7
2017.0     1.156    175.7
2018.0     1.162    175.7
2019.0     1.168    175.7
2020.0     1.174    175.7
2021.0     1.180    175.7
2022.0     1.185    175.8
2023.0     1.191    175.8
2024.0     1.197    175.8
2025.0     1.202    175.8
2026.0     1.208    175.8
2027.0     1.213    175.8
2028.0     1.218    175.8
2029.0     1.224    175.8
2030.0     1.229    175.9
2031.0     1.234    175.9
2032.0     1.239    175.9
2033.0     1.244    175.9
2034.0     1.249    175.9
2035.0     1.254    175.9
2036.0     1.259    175.9
2037.0     1.263    175.9
2038.0     1.268    175.9
2039.0     1.273    175.9
2040.0     1.277    176.0
2041.0     1.282    176.0
2042.0     1.286    176.0
2043.0     1.291    176.0
2044.0     1.295    176.0
2045.0     1.299    176.0
2046.0     1.303    176.0
2047.0     1.308    176.0
2048.0     1.312    176.0
2049.0     1.316    176.0
2050.0     1.320    176.1
2051.0     1.324    176.1
2052.0     1.328    176.1
2053.0     1.331    176.1
2054.0     1.335    176.1
2055.0     1.339    176.1
2056.0     1.343    176.1
2057.0     1.346    176.1
2058.0     1.350    176.1
2059.0     1.353    176.1
2060.0     1.357    176.2
2061.0     1.360    176.2
2062.0     1.363    176.2
2063.0     1.367    176.2
2064.0     1.370    176.2
2065.0     1.373    176.2
2066.0     1.376    176.2
2067.0     1.379    176.2
2068.0     1.382    176.2
2069.0     1.385    176.2
2070.0     1.388    176.2
2071.0     1.391    176.2
2072.0     1.394    176.3
2073.0     1.396    176.3
2074.0     1.399    176.3
2075.0     1.402    176.3
2076.0     1.404    176.3
2077.0     1.407    176.3
2078.0     1.409    176.3
2079.0     1.412    176.3
2080.0     1.414    176.3
2081.0     1.416    176.3
2082.0     1.419    176.3
2083.0     1.421    176.4
2084.0     1.423    176.4
2085.0     1.425    176.4
2086.0     1.427    176.4
2087.0     1.429    176.4
2088.0     1.431    176.4
2089.0     1.433    176.4
2090.0     1.435    176.4
2091.0     1.437    176.4
2092.0     1.439    176.4
2093.0     1.440    176.4
2094.0     1.442    176.4
2095.0     1.444    176.4
2096.0     1.445    176.5
2097.0     1.447    176.5
2098.0     1.448    176.5
2099.0     1.450    176.5
2100.0     1.451    176.5
2101.0     1.452    176.5
2102.0     1.453    176.5
2103.0     1.455    176.5
2104.0     1.456    176.5
2105.0     1.457    176.5
2106.0     1.458    176.5
2107.0     1.459    176.5
2108.0     1.460    176.6
2109.0     1.461    176.6
2110.0     1.462    176.6
2111.0     1.463    176.6
2112.0     1.463    176.6
2113.0     1.464    176.6
2114.0     1.465    176.6
2115.0     1.465    176.6
2116.0     1.466    176.6
2117.0     1.466    176.6
2118.0     1.467    176.6
2119.0     1.467    176.6
2120.0     1.468    176.6
2121.0     1.468    176.7
2122.0     1.468    176.7
2123.0     1.468    176.7
2124.0     1.469    176.7
2125.0     1.469    176.7
2126.0     1.469    176.7
2127.0     1.469    176.7
2128.0     1.469    176.7
2129.0     1.469    176.7
2130.0     1.469    176.7
2131.0     1.468    176.7
2132.0     1.468    176.7
2133.0     1.468    176.7
2134.0     1.468    176.8
2135.0     1.467    176.8
2136.0     1.467    176.8
2137.0     1.466    176.8
2138.0     1.466    176.8
2139.0     1.465    176.8
2140.0     1.465    176.8
2141.0     1.464    176.8
2142.0     1.463    176.8
2143.0     1.463    176.8
2144.0     1.462    176.8
2145.0     1.461    176.8
2146.0     1.460    176.8
2147.0     1.459    176.9
2148.0     1.458    176.9
2149.0     1.457    176.9
2150.0     1.456    176.9
2151.0     1.455    176.9
2152.0     1.453    176.9
2153.0     1.452    176.9
2154.0     1.451    176.9
2155.0     1.450    176.9
2156.0     1.448    176.9
2157.0     1.447    176.9
2158.0     1.445    176.9
2159.0     1.444    177.0
2160.0     1.442    177.0
2161.0     1.440    177.0
2162.0     1.439    177.0
2163.0     1.437    177.0
2164.0     1.435    177.0
2165.0     1.433    177.0
2166.0     1.431    177.0
2167.0     1.429    177.0
2168.0     1.427    177.0
2169.0     1.425    177.0
2170.0     1.423    177.0
2171.0     1.421    177.0
2172.0     1.419    177.1
2173.0     1.416    177.1
2174.0     1.414    177.1
2175.0     1.412    177.1
2176.0     1.409    177.1
2177.0     1.407    177.1
2178.0     1.404    177.1
2179.0     1.402    177.1
2180.0     1.399    177.1
2181.0     1.396    177.1
2182.0     1.394    177.1
2183.0     1.391    177.2
2184.0     1.388    177.2
2185.0     1.385    177.2
2186.0     1.382    177.2
2187.0     1.379    177.2
2188.0     1.376    177.2
2189.0     1.373    177.2
2190.0     1.370    177.2
2191.0     1.367    177.2
2192.0     1.363    177.2
2193.0     1.360    177.2
2194.0     1.357    177.2
2195.0     1.353    177.3
2196.0     1.350    177.3
2197.0     1.346    177.3
2198.0     1.343    177.3
2199.0     1.339    177.3
2200.0     1.335    177.3
2201.0     1.331    177.3
2202.0     1.328    177.3
2203.0     1.324    177.3
2204.0     1.320    177.3
2205.0     1.316    177.4
2206.0     1.312    177.4
2207.0     1.308    177.4
2208.0     1.303    177.4
2209.0     1.299    177.4
2210.0     1.295    177.4
2211.0     1.291    177.4
2212.0     1.286    177.4
2213.0     1.282    177.4
2214.0     1.277    177.4
2215.0     1.273    177.5
2216.0     1.268    177.5
2217.0     1.263    177.5
2218.0     1.259    177.5
2219.0     1.254    177.5
2220.0     1.249    177.5
2221.0     1.244    177.5
2222.0     1.239    177.5
2223.0     1.234    177.5
2224.0     1.229    177.5
2225.0     1.224    177.6
2226.0     1.218    177.6
2227.0     1.213    177.6
2228.0     1.208    177.6
2229.0     1.202    177.6
2230.0     1.197    177.6
2231.0     1.191    177.6
2232.0     1.185    177.6
2233.0     1.180    177.7
2234.0     1.174    177.7
2235.0     1.168    177.7
2236.0     1.162    177.7
2237.0     1.156    177.7
2238.0     1.150    177.7
2239.0     1.144    177.7
2240.0     1.138    177.7
2241.0     1.132    177.8
2242.0     1.125    177.8
2243.0     1.119    177.8
2244.0     1.113    177.8
2245.0     1.106    177.8
2246.0     1.099    177.8
2247.0     1.093    177.8
2248.0     1.086    177.8
2249.0     1.079    177.9






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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