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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:19:10

Orbital Elements for STF1768AB
WDS: STF1768AB WDS ID/Discoverer
P: 244.980 Orbital period (years)
a: 1.00584 Semi-major axis (arcseconds)
i: 159.53 Inclination (degrees)
Ω: 64.847 Longitude of ascending node (degrees)
T: 1865.414 Epoch of periastron passage (year)
e: 0.83265 Eccentricity
ω: 140.894 Longitude of periastron (degrees)
Start-Year: 1903.0 Year
End-Year: 2147.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1768AB
Position: 133727.70+361741.4 Epoch-2000 right ascension and declination
WDS-ID: 13375+3618 WDS designation
Discoverer Code: STF1768AB Discover designation and components
ADS number: 8974 Aitken Double Star catalog
HD number: 118623 HD catalog number
Hipparcos number: 66458 Hipparcos catalog number
V1: 4.98 Magnitude of the primary
V2: 6.95 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1768AB



WDS 6th Orbit including measures of STF1768AB

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


Ephemeris of STF1768AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.702     93.0
-------------------------
1903.0     1.116    130.1
1904.0     1.134    129.5
1905.0     1.151    128.9
1906.0     1.168    128.3
1907.0     1.184    127.8
1908.0     1.200    127.2
1909.0     1.216    126.7
1910.0     1.232    126.2
1911.0     1.247    125.7
1912.0     1.262    125.2
1913.0     1.277    124.7
1914.0     1.291    124.2
1915.0     1.305    123.8
1916.0     1.319    123.3
1917.0     1.333    122.9
1918.0     1.347    122.5
1919.0     1.360    122.1
1920.0     1.373    121.6
1921.0     1.385    121.2
1922.0     1.398    120.8
1923.0     1.410    120.4
1924.0     1.422    120.1
1925.0     1.434    119.7
1926.0     1.446    119.3
1927.0     1.457    118.9
1928.0     1.468    118.6
1929.0     1.479    118.2
1930.0     1.490    117.9
1931.0     1.500    117.5
1932.0     1.511    117.2
1933.0     1.521    116.9
1934.0     1.531    116.5
1935.0     1.540    116.2
1936.0     1.550    115.9
1937.0     1.559    115.6
1938.0     1.568    115.2
1939.0     1.577    114.9
1940.0     1.586    114.6
1941.0     1.594    114.3
1942.0     1.603    114.0
1943.0     1.611    113.7
1944.0     1.619    113.4
1945.0     1.627    113.1
1946.0     1.634    112.8
1947.0     1.641    112.5
1948.0     1.649    112.3
1949.0     1.656    112.0
1950.0     1.663    111.7
1951.0     1.669    111.4
1952.0     1.676    111.1
1953.0     1.682    110.9
1954.0     1.688    110.6
1955.0     1.694    110.3
1956.0     1.700    110.1
1957.0     1.706    109.8
1958.0     1.711    109.5
1959.0     1.716    109.3
1960.0     1.722    109.0
1961.0     1.726    108.7
1962.0     1.731    108.5
1963.0     1.736    108.2
1964.0     1.740    108.0
1965.0     1.745    107.7
1966.0     1.749    107.5
1967.0     1.753    107.2
1968.0     1.756    107.0
1969.0     1.760    106.7
1970.0     1.764    106.5
1971.0     1.767    106.2
1972.0     1.770    106.0
1973.0     1.773    105.7
1974.0     1.776    105.5
1975.0     1.778    105.2
1976.0     1.781    105.0
1977.0     1.783    104.8
1978.0     1.785    104.5
1979.0     1.787    104.3
1980.0     1.789    104.0
1981.0     1.791    103.8
1982.0     1.792    103.5
1983.0     1.794    103.3
1984.0     1.795    103.1
1985.0     1.796    102.8
1986.0     1.797    102.6
1987.0     1.797    102.4
1988.0     1.798    102.1
1989.0     1.798    101.9
1990.0     1.799    101.6
1991.0     1.799    101.4
1992.0     1.799    101.2
1993.0     1.798    100.9
1994.0     1.798    100.7
1995.0     1.797    100.4
1996.0     1.797    100.2
1997.0     1.796    100.0
1998.0     1.795     99.7
1999.0     1.793     99.5
2000.0     1.792     99.2
2001.0     1.790     99.0
2002.0     1.789     98.8
2003.0     1.787     98.5
2004.0     1.785     98.3
2005.0     1.782     98.0
2006.0     1.780     97.8
2007.0     1.778     97.6
2008.0     1.775     97.3
2009.0     1.772     97.1
2010.0     1.769     96.8
2011.0     1.766     96.6
2012.0     1.762     96.3
2013.0     1.759     96.1
2014.0     1.755     95.8
2015.0     1.751     95.6
2016.0     1.747     95.3
2017.0     1.743     95.1
2018.0     1.738     94.8
2019.0     1.734     94.6
2020.0     1.729     94.3
2021.0     1.724     94.0
2022.0     1.719     93.8
2023.0     1.713     93.5
2024.0     1.708     93.3
2025.0     1.702     93.0
2026.0     1.696     92.7
2027.0     1.690     92.5
2028.0     1.684     92.2
2029.0     1.678     91.9
2030.0     1.671     91.6
2031.0     1.664     91.4
2032.0     1.657     91.1
2033.0     1.650     90.8
2034.0     1.642     90.5
2035.0     1.635     90.2
2036.0     1.627     89.9
2037.0     1.619     89.6
2038.0     1.611     89.3
2039.0     1.602     89.0
2040.0     1.594     88.7
2041.0     1.585     88.4
2042.0     1.576     88.1
2043.0     1.567     87.8
2044.0     1.557     87.5
2045.0     1.548     87.2
2046.0     1.538     86.9
2047.0     1.528     86.5
2048.0     1.517     86.2
2049.0     1.507     85.9
2050.0     1.496     85.5
2051.0     1.485     85.2
2052.0     1.473     84.8
2053.0     1.462     84.5
2054.0     1.450     84.1
2055.0     1.438     83.7
2056.0     1.426     83.3
2057.0     1.413     83.0
2058.0     1.400     82.6
2059.0     1.387     82.2
2060.0     1.374     81.8
2061.0     1.360     81.4
2062.0     1.346     80.9
2063.0     1.332     80.5
2064.0     1.317     80.1
2065.0     1.303     79.6
2066.0     1.288     79.2
2067.0     1.272     78.7
2068.0     1.256     78.2
2069.0     1.240     77.7
2070.0     1.224     77.2
2071.0     1.207     76.7
2072.0     1.190     76.1
2073.0     1.172     75.6
2074.0     1.155     75.0
2075.0     1.136     74.4
2076.0     1.118     73.8
2077.0     1.099     73.2
2078.0     1.079     72.5
2079.0     1.059     71.9
2080.0     1.039     71.2
2081.0     1.018     70.4
2082.0     0.997     69.7
2083.0     0.975     68.9
2084.0     0.953     68.1
2085.0     0.930     67.2
2086.0     0.907     66.3
2087.0     0.883     65.3
2088.0     0.859     64.3
2089.0     0.833     63.2
2090.0     0.808     62.1
2091.0     0.781     60.9
2092.0     0.754     59.5
2093.0     0.726     58.1
2094.0     0.697     56.6
2095.0     0.668     55.0
2096.0     0.638     53.1
2097.0     0.606     51.1
2098.0     0.574     48.9
2099.0     0.540     46.4
2100.0     0.506     43.6
2101.0     0.470     40.4
2102.0     0.434     36.6
2103.0     0.396     32.1
2104.0     0.357     26.6
2105.0     0.317     19.8
2106.0     0.276     11.0
2107.0     0.237    359.2
2108.0     0.202    343.0
2109.0     0.175    321.0
2110.0     0.164    293.5
2111.0     0.170    265.3
2112.0     0.191    241.5
2113.0     0.220    223.1
2114.0     0.253    209.2
2115.0     0.287    198.5
2116.0     0.321    190.1
2117.0     0.355    183.4
2118.0     0.389    177.8
2119.0     0.422    173.1
2120.0     0.454    169.1
2121.0     0.486    165.6
2122.0     0.517    162.5
2123.0     0.547    159.8
2124.0     0.576    157.3
2125.0     0.605    155.1
2126.0     0.633    153.1
2127.0     0.660    151.3
2128.0     0.687    149.6
2129.0     0.713    148.0
2130.0     0.738    146.5
2131.0     0.763    145.2
2132.0     0.788    143.9
2133.0     0.811    142.7
2134.0     0.835    141.5
2135.0     0.858    140.4
2136.0     0.880    139.4
2137.0     0.902    138.5
2138.0     0.923    137.5
2139.0     0.944    136.6
2140.0     0.965    135.8
2141.0     0.985    135.0
2142.0     1.005    134.2
2143.0     1.025    133.5
2144.0     1.044    132.7
2145.0     1.062    132.0
2146.0     1.081    131.4






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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