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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:57:03

Orbital Elements for STT74
WDS: STT74 WDS ID/Discoverer
P: 272.500 Orbital period (years)
a: 0.728 Semi-major axis (arcseconds)
i: 96.6 Inclination (degrees)
Ω: 106.0 Longitude of ascending node (degrees)
T: 1993.230 Epoch of periastron passage (year)
e: 0.397 Eccentricity
ω: 262.5 Longitude of periastron (degrees)
Start-Year: 1889.0 Year
End-Year: 2161.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT74
Position: 041216.47+093900.5 Epoch-2000 right ascension and declination
WDS-ID: 04123+0939 WDS designation
Discoverer Code: STT74 Discover designation and components
ADS number: 3053 Aitken Double Star catalog
HD number: 26547 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.3 Magnitude of the primary
V2: 8.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STT74



WDS 6th Orbit including measures of STT74

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


Ephemeris of STT74
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.579    107.5
-------------------------
1889.0     0.245    312.6
1890.0     0.254    311.4
1891.0     0.263    310.3
1892.0     0.272    309.2
1893.0     0.282    308.3
1894.0     0.291    307.4
1895.0     0.301    306.5
1896.0     0.310    305.7
1897.0     0.319    305.0
1898.0     0.329    304.3
1899.0     0.338    303.6
1900.0     0.347    303.0
1901.0     0.356    302.4
1902.0     0.366    301.8
1903.0     0.375    301.3
1904.0     0.384    300.8
1905.0     0.393    300.3
1906.0     0.402    299.8
1907.0     0.410    299.4
1908.0     0.419    299.0
1909.0     0.428    298.5
1910.0     0.436    298.1
1911.0     0.445    297.8
1912.0     0.453    297.4
1913.0     0.461    297.0
1914.0     0.470    296.7
1915.0     0.478    296.4
1916.0     0.485    296.1
1917.0     0.493    295.7
1918.0     0.501    295.4
1919.0     0.508    295.2
1920.0     0.515    294.9
1921.0     0.523    294.6
1922.0     0.530    294.3
1923.0     0.536    294.1
1924.0     0.543    293.8
1925.0     0.550    293.6
1926.0     0.556    293.3
1927.0     0.562    293.1
1928.0     0.568    292.9
1929.0     0.574    292.6
1930.0     0.579    292.4
1931.0     0.584    292.2
1932.0     0.589    292.0
1933.0     0.594    291.8
1934.0     0.599    291.6
1935.0     0.603    291.4
1936.0     0.607    291.2
1937.0     0.611    291.0
1938.0     0.614    290.8
1939.0     0.618    290.6
1940.0     0.621    290.4
1941.0     0.623    290.2
1942.0     0.626    290.0
1943.0     0.628    289.8
1944.0     0.629    289.6
1945.0     0.631    289.4
1946.0     0.631    289.2
1947.0     0.632    289.1
1948.0     0.632    288.9
1949.0     0.632    288.7
1950.0     0.632    288.5
1951.0     0.631    288.3
1952.0     0.629    288.1
1953.0     0.627    287.9
1954.0     0.625    287.8
1955.0     0.622    287.6
1956.0     0.619    287.4
1957.0     0.615    287.2
1958.0     0.611    287.0
1959.0     0.606    286.8
1960.0     0.601    286.6
1961.0     0.595    286.4
1962.0     0.589    286.2
1963.0     0.581    286.0
1964.0     0.574    285.7
1965.0     0.566    285.5
1966.0     0.557    285.3
1967.0     0.547    285.0
1968.0     0.537    284.8
1969.0     0.526    284.5
1970.0     0.515    284.2
1971.0     0.503    284.0
1972.0     0.490    283.7
1973.0     0.476    283.3
1974.0     0.462    283.0
1975.0     0.447    282.6
1976.0     0.431    282.3
1977.0     0.415    281.9
1978.0     0.398    281.4
1979.0     0.380    280.9
1980.0     0.361    280.4
1981.0     0.342    279.8
1982.0     0.322    279.1
1983.0     0.302    278.3
1984.0     0.281    277.5
1985.0     0.259    276.5
1986.0     0.237    275.3
1987.0     0.215    273.8
1988.0     0.192    272.0
1989.0     0.169    269.8
1990.0     0.146    266.8
1991.0     0.123    262.7
1992.0     0.101    256.8
1993.0     0.080    247.7
1994.0     0.063    232.9
1995.0     0.052    209.7
1996.0     0.052    181.4
1997.0     0.064    158.6
1998.0     0.082    144.3
1999.0     0.102    135.4
2000.0     0.125    129.6
2001.0     0.147    125.6
2002.0     0.171    122.6
2003.0     0.194    120.4
2004.0     0.216    118.6
2005.0     0.239    117.2
2006.0     0.261    116.0
2007.0     0.283    115.0
2008.0     0.304    114.1
2009.0     0.325    113.4
2010.0     0.345    112.7
2011.0     0.365    112.2
2012.0     0.384    111.6
2013.0     0.403    111.2
2014.0     0.421    110.7
2015.0     0.438    110.3
2016.0     0.455    109.9
2017.0     0.471    109.6
2018.0     0.487    109.3
2019.0     0.502    109.0
2020.0     0.516    108.7
2021.0     0.530    108.4
2022.0     0.543    108.2
2023.0     0.555    107.9
2024.0     0.567    107.7
2025.0     0.579    107.5
2026.0     0.590    107.2
2027.0     0.600    107.0
2028.0     0.610    106.8
2029.0     0.619    106.6
2030.0     0.627    106.5
2031.0     0.636    106.3
2032.0     0.643    106.1
2033.0     0.650    105.9
2034.0     0.657    105.7
2035.0     0.663    105.6
2036.0     0.669    105.4
2037.0     0.675    105.2
2038.0     0.679    105.1
2039.0     0.684    104.9
2040.0     0.688    104.8
2041.0     0.692    104.6
2042.0     0.695    104.5
2043.0     0.698    104.3
2044.0     0.700    104.1
2045.0     0.702    104.0
2046.0     0.704    103.8
2047.0     0.706    103.7
2048.0     0.707    103.6
2049.0     0.707    103.4
2050.0     0.708    103.3
2051.0     0.708    103.1
2052.0     0.708    103.0
2053.0     0.707    102.8
2054.0     0.706    102.7
2055.0     0.705    102.5
2056.0     0.704    102.4
2057.0     0.702    102.2
2058.0     0.700    102.1
2059.0     0.698    101.9
2060.0     0.695    101.8
2061.0     0.693    101.6
2062.0     0.690    101.5
2063.0     0.687    101.3
2064.0     0.683    101.1
2065.0     0.680    101.0
2066.0     0.676    100.8
2067.0     0.672    100.7
2068.0     0.667    100.5
2069.0     0.663    100.3
2070.0     0.658    100.2
2071.0     0.653    100.0
2072.0     0.648     99.8
2073.0     0.643     99.6
2074.0     0.638     99.5
2075.0     0.632     99.3
2076.0     0.626     99.1
2077.0     0.620     98.9
2078.0     0.614     98.7
2079.0     0.608     98.5
2080.0     0.601     98.3
2081.0     0.595     98.1
2082.0     0.588     97.9
2083.0     0.581     97.7
2084.0     0.574     97.4
2085.0     0.567     97.2
2086.0     0.560     97.0
2087.0     0.552     96.7
2088.0     0.545     96.5
2089.0     0.537     96.3
2090.0     0.529     96.0
2091.0     0.522     95.7
2092.0     0.514     95.4
2093.0     0.505     95.2
2094.0     0.497     94.9
2095.0     0.489     94.6
2096.0     0.481     94.3
2097.0     0.472     93.9
2098.0     0.464     93.6
2099.0     0.455     93.2
2100.0     0.446     92.9
2101.0     0.437     92.5
2102.0     0.428     92.1
2103.0     0.419     91.7
2104.0     0.410     91.3
2105.0     0.401     90.8
2106.0     0.392     90.3
2107.0     0.383     89.9
2108.0     0.374     89.3
2109.0     0.364     88.8
2110.0     0.355     88.2
2111.0     0.346     87.6
2112.0     0.336     87.0
2113.0     0.327     86.3
2114.0     0.317     85.6
2115.0     0.308     84.8
2116.0     0.299     84.0
2117.0     0.289     83.2
2118.0     0.280     82.3
2119.0     0.270     81.3
2120.0     0.261     80.3
2121.0     0.251     79.1
2122.0     0.242     77.9
2123.0     0.233     76.6
2124.0     0.224     75.2
2125.0     0.215     73.6
2126.0     0.206     72.0
2127.0     0.197     70.2
2128.0     0.189     68.2
2129.0     0.180     66.0
2130.0     0.172     63.6
2131.0     0.164     61.0
2132.0     0.157     58.1
2133.0     0.150     55.0
2134.0     0.143     51.5
2135.0     0.137     47.7
2136.0     0.131     43.6
2137.0     0.127     39.2
2138.0     0.123     34.5
2139.0     0.120     29.4
2140.0     0.118     24.2
2141.0     0.116     18.8
2142.0     0.116     13.3
2143.0     0.117      7.9
2144.0     0.119      2.6
2145.0     0.122    357.5
2146.0     0.126    352.7
2147.0     0.130    348.2
2148.0     0.136    344.0
2149.0     0.142    340.1
2150.0     0.148    336.6
2151.0     0.155    333.4
2152.0     0.162    330.5
2153.0     0.170    327.8
2154.0     0.178    325.4
2155.0     0.187    323.1
2156.0     0.195    321.1
2157.0     0.204    319.3
2158.0     0.213    317.5
2159.0     0.222    316.0
2160.0     0.231    314.5






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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