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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:26:09

Orbital Elements for STF1879AB
WDS: STF1879AB WDS ID/Discoverer
P: 253.000 Orbital period (years)
a: 1.111 Semi-major axis (arcseconds)
i: 117.8 Inclination (degrees)
Ω: 251.24 Longitude of ascending node (degrees)
T: 1866.000 Epoch of periastron passage (year)
e: 0.6989 Eccentricity
ω: 327.8 Longitude of periastron (degrees)
Start-Year: 1899.0 Year
End-Year: 2151.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1879AB
Position: 144615.58+093848.2 Epoch-2000 right ascension and declination
WDS-ID: 14463+0939 WDS designation
Discoverer Code: STF1879AB Discover designation and components
ADS number: 9380 Aitken Double Star catalog
HD number: 130145 HD catalog number
Hipparcos number: 72221 Hipparcos catalog number
V1: 7.79 Magnitude of the primary
V2: 8.45 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1879AB



WDS 6th Orbit including measures of STF1879AB

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


Ephemeris of STF1879AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.711     81.1
-------------------------
1899.0     0.525    140.7
1900.0     0.540    138.6
1901.0     0.556    136.7
1902.0     0.572    134.8
1903.0     0.589    133.1
1904.0     0.605    131.5
1905.0     0.622    129.9
1906.0     0.638    128.4
1907.0     0.655    127.0
1908.0     0.672    125.7
1909.0     0.689    124.4
1910.0     0.706    123.2
1911.0     0.723    122.1
1912.0     0.740    121.0
1913.0     0.757    119.9
1914.0     0.774    118.9
1915.0     0.791    118.0
1916.0     0.808    117.1
1917.0     0.825    116.2
1918.0     0.841    115.3
1919.0     0.858    114.5
1920.0     0.874    113.8
1921.0     0.891    113.0
1922.0     0.907    112.3
1923.0     0.923    111.6
1924.0     0.939    110.9
1925.0     0.955    110.2
1926.0     0.971    109.6
1927.0     0.987    109.0
1928.0     1.002    108.4
1929.0     1.017    107.8
1930.0     1.033    107.3
1931.0     1.048    106.7
1932.0     1.063    106.2
1933.0     1.078    105.7
1934.0     1.092    105.2
1935.0     1.107    104.7
1936.0     1.121    104.2
1937.0     1.135    103.8
1938.0     1.150    103.3
1939.0     1.163    102.9
1940.0     1.177    102.5
1941.0     1.191    102.0
1942.0     1.204    101.6
1943.0     1.218    101.2
1944.0     1.231    100.9
1945.0     1.244    100.5
1946.0     1.257    100.1
1947.0     1.269     99.7
1948.0     1.282     99.4
1949.0     1.294     99.0
1950.0     1.306     98.7
1951.0     1.318     98.3
1952.0     1.330     98.0
1953.0     1.342     97.7
1954.0     1.353     97.3
1955.0     1.364     97.0
1956.0     1.376     96.7
1957.0     1.387     96.4
1958.0     1.397     96.1
1959.0     1.408     95.8
1960.0     1.419     95.5
1961.0     1.429     95.2
1962.0     1.439     94.9
1963.0     1.449     94.7
1964.0     1.459     94.4
1965.0     1.468     94.1
1966.0     1.478     93.8
1967.0     1.487     93.6
1968.0     1.496     93.3
1969.0     1.505     93.0
1970.0     1.514     92.8
1971.0     1.523     92.5
1972.0     1.531     92.3
1973.0     1.539     92.0
1974.0     1.547     91.8
1975.0     1.555     91.5
1976.0     1.563     91.3
1977.0     1.571     91.1
1978.0     1.578     90.8
1979.0     1.585     90.6
1980.0     1.592     90.4
1981.0     1.599     90.1
1982.0     1.606     89.9
1983.0     1.612     89.7
1984.0     1.618     89.5
1985.0     1.625     89.2
1986.0     1.631     89.0
1987.0     1.636     88.8
1988.0     1.642     88.6
1989.0     1.647     88.4
1990.0     1.652     88.1
1991.0     1.657     87.9
1992.0     1.662     87.7
1993.0     1.667     87.5
1994.0     1.671     87.3
1995.0     1.676     87.1
1996.0     1.680     86.9
1997.0     1.684     86.7
1998.0     1.687     86.5
1999.0     1.691     86.3
2000.0     1.694     86.1
2001.0     1.697     85.8
2002.0     1.700     85.6
2003.0     1.703     85.4
2004.0     1.706     85.2
2005.0     1.708     85.0
2006.0     1.710     84.8
2007.0     1.712     84.6
2008.0     1.714     84.4
2009.0     1.715     84.2
2010.0     1.717     84.0
2011.0     1.718     83.8
2012.0     1.719     83.6
2013.0     1.719     83.4
2014.0     1.720     83.2
2015.0     1.720     83.0
2016.0     1.720     82.9
2017.0     1.720     82.7
2018.0     1.720     82.5
2019.0     1.719     82.3
2020.0     1.719     82.1
2021.0     1.718     81.9
2022.0     1.716     81.7
2023.0     1.715     81.5
2024.0     1.713     81.3
2025.0     1.711     81.1
2026.0     1.709     80.9
2027.0     1.707     80.7
2028.0     1.704     80.5
2029.0     1.702     80.3
2030.0     1.699     80.1
2031.0     1.695     79.9
2032.0     1.692     79.6
2033.0     1.688     79.4
2034.0     1.684     79.2
2035.0     1.680     79.0
2036.0     1.675     78.8
2037.0     1.671     78.6
2038.0     1.665     78.4
2039.0     1.660     78.2
2040.0     1.655     78.0
2041.0     1.649     77.8
2042.0     1.643     77.5
2043.0     1.637     77.3
2044.0     1.630     77.1
2045.0     1.623     76.9
2046.0     1.616     76.7
2047.0     1.608     76.4
2048.0     1.601     76.2
2049.0     1.593     76.0
2050.0     1.584     75.7
2051.0     1.576     75.5
2052.0     1.567     75.3
2053.0     1.558     75.0
2054.0     1.548     74.8
2055.0     1.538     74.5
2056.0     1.528     74.3
2057.0     1.517     74.0
2058.0     1.507     73.8
2059.0     1.495     73.5
2060.0     1.484     73.3
2061.0     1.472     73.0
2062.0     1.460     72.7
2063.0     1.447     72.4
2064.0     1.434     72.2
2065.0     1.421     71.9
2066.0     1.407     71.6
2067.0     1.393     71.3
2068.0     1.379     71.0
2069.0     1.364     70.7
2070.0     1.348     70.4
2071.0     1.333     70.0
2072.0     1.316     69.7
2073.0     1.300     69.3
2074.0     1.283     69.0
2075.0     1.265     68.6
2076.0     1.247     68.3
2077.0     1.229     67.9
2078.0     1.210     67.5
2079.0     1.190     67.1
2080.0     1.170     66.7
2081.0     1.150     66.2
2082.0     1.129     65.8
2083.0     1.107     65.3
2084.0     1.085     64.8
2085.0     1.062     64.3
2086.0     1.039     63.8
2087.0     1.015     63.2
2088.0     0.990     62.6
2089.0     0.964     62.0
2090.0     0.938     61.4
2091.0     0.912     60.7
2092.0     0.884     60.0
2093.0     0.856     59.2
2094.0     0.827     58.4
2095.0     0.797     57.5
2096.0     0.767     56.5
2097.0     0.736     55.5
2098.0     0.703     54.3
2099.0     0.670     53.1
2100.0     0.637     51.7
2101.0     0.602     50.2
2102.0     0.566     48.5
2103.0     0.530     46.5
2104.0     0.493     44.3
2105.0     0.455     41.7
2106.0     0.417     38.6
2107.0     0.378     34.9
2108.0     0.340     30.3
2109.0     0.303     24.6
2110.0     0.267     17.4
2111.0     0.236      8.0
2112.0     0.210    356.1
2113.0     0.193    341.6
2114.0     0.189    325.3
2115.0     0.197    309.4
2116.0     0.215    295.5
2117.0     0.240    284.1
2118.0     0.268    275.0
2119.0     0.295    267.6
2120.0     0.320    261.4
2121.0     0.341    256.0
2122.0     0.357    251.2
2123.0     0.369    246.8
2124.0     0.378    242.6
2125.0     0.383    238.6
2126.0     0.385    234.6
2127.0     0.385    230.6
2128.0     0.384    226.7
2129.0     0.382    222.7
2130.0     0.379    218.7
2131.0     0.377    214.6
2132.0     0.374    210.4
2133.0     0.372    206.2
2134.0     0.371    202.0
2135.0     0.371    197.7
2136.0     0.371    193.4
2137.0     0.373    189.2
2138.0     0.376    185.0
2139.0     0.380    180.9
2140.0     0.386    176.9
2141.0     0.392    173.1
2142.0     0.400    169.3
2143.0     0.409    165.8
2144.0     0.419    162.3
2145.0     0.430    159.1
2146.0     0.441    156.0
2147.0     0.454    153.1
2148.0     0.467    150.3
2149.0     0.481    147.7
2150.0     0.495    145.2






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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