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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:55:30

Orbital Elements for A1936BC
WDS: A1936BC WDS ID/Discoverer
P: 225.000 Orbital period (years)
a: 0.425 Semi-major axis (arcseconds)
i: 152.4 Inclination (degrees)
Ω: 68.9 Longitude of ascending node (degrees)
T: 1978.870 Epoch of periastron passage (year)
e: 0.179 Eccentricity
ω: 51.3 Longitude of periastron (degrees)
Start-Year: 1913.0 Year
End-Year: 2137.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1936BC
Position: 040009.54+081818.9 Epoch-2000 right ascension and declination
WDS-ID: 04002+0818 WDS designation
Discoverer Code: A1936BC Discover designation and components
ADS number: 2923 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.6 Magnitude of the primary
V2: 9.7 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A1936BC



WDS 6th Orbit including measures of A1936BC

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


Ephemeris of A1936BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.403    280.1
-------------------------
1913.0     0.410    139.3
1914.0     0.409    137.7
1915.0     0.408    136.2
1916.0     0.407    134.7
1917.0     0.407    133.2
1918.0     0.406    131.7
1919.0     0.405    130.1
1920.0     0.404    128.6
1921.0     0.404    127.1
1922.0     0.403    125.5
1923.0     0.402    124.0
1924.0     0.402    122.4
1925.0     0.401    120.8
1926.0     0.400    119.3
1927.0     0.400    117.7
1928.0     0.399    116.1
1929.0     0.398    114.5
1930.0     0.398    112.9
1931.0     0.397    111.3
1932.0     0.396    109.7
1933.0     0.395    108.1
1934.0     0.395    106.5
1935.0     0.394    104.9
1936.0     0.393    103.3
1937.0     0.392    101.6
1938.0     0.392    100.0
1939.0     0.391     98.3
1940.0     0.390     96.7
1941.0     0.389     95.0
1942.0     0.388     93.4
1943.0     0.387     91.7
1944.0     0.386     90.0
1945.0     0.385     88.3
1946.0     0.384     86.6
1947.0     0.383     84.9
1948.0     0.382     83.2
1949.0     0.380     81.4
1950.0     0.379     79.7
1951.0     0.378     77.9
1952.0     0.376     76.1
1953.0     0.375     74.4
1954.0     0.373     72.6
1955.0     0.372     70.7
1956.0     0.370     68.9
1957.0     0.368     67.1
1958.0     0.366     65.2
1959.0     0.365     63.3
1960.0     0.363     61.4
1961.0     0.361     59.5
1962.0     0.359     57.5
1963.0     0.357     55.6
1964.0     0.355     53.6
1965.0     0.353     51.6
1966.0     0.351     49.5
1967.0     0.349     47.5
1968.0     0.347     45.4
1969.0     0.344     43.3
1970.0     0.342     41.1
1971.0     0.340     39.0
1972.0     0.338     36.8
1973.0     0.336     34.6
1974.0     0.334     32.3
1975.0     0.332     30.0
1976.0     0.330     27.7
1977.0     0.328     25.4
1978.0     0.327     23.1
1979.0     0.325     20.7
1980.0     0.324     18.3
1981.0     0.322     15.9
1982.0     0.321     13.5
1983.0     0.320     11.0
1984.0     0.319      8.5
1985.0     0.318      6.0
1986.0     0.317      3.5
1987.0     0.317      1.0
1988.0     0.316    358.5
1989.0     0.316    356.0
1990.0     0.316    353.5
1991.0     0.316    350.9
1992.0     0.317    348.4
1993.0     0.317    345.9
1994.0     0.318    343.4
1995.0     0.319    340.9
1996.0     0.320    338.5
1997.0     0.321    336.0
1998.0     0.323    333.6
1999.0     0.325    331.2
2000.0     0.326    328.8
2001.0     0.328    326.5
2002.0     0.331    324.1
2003.0     0.333    321.9
2004.0     0.335    319.6
2005.0     0.338    317.4
2006.0     0.341    315.2
2007.0     0.343    313.0
2008.0     0.346    310.9
2009.0     0.349    308.8
2010.0     0.352    306.8
2011.0     0.355    304.8
2012.0     0.359    302.8
2013.0     0.362    300.8
2014.0     0.365    298.9
2015.0     0.369    297.1
2016.0     0.372    295.2
2017.0     0.375    293.4
2018.0     0.379    291.7
2019.0     0.382    289.9
2020.0     0.386    288.2
2021.0     0.389    286.5
2022.0     0.392    284.9
2023.0     0.396    283.3
2024.0     0.399    281.7
2025.0     0.403    280.1
2026.0     0.406    278.5
2027.0     0.409    277.0
2028.0     0.412    275.5
2029.0     0.415    274.1
2030.0     0.419    272.6
2031.0     0.422    271.2
2032.0     0.425    269.8
2033.0     0.428    268.4
2034.0     0.430    267.0
2035.0     0.433    265.7
2036.0     0.436    264.3
2037.0     0.439    263.0
2038.0     0.441    261.7
2039.0     0.444    260.4
2040.0     0.446    259.2
2041.0     0.448    257.9
2042.0     0.451    256.7
2043.0     0.453    255.4
2044.0     0.455    254.2
2045.0     0.457    253.0
2046.0     0.459    251.8
2047.0     0.461    250.6
2048.0     0.462    249.4
2049.0     0.464    248.2
2050.0     0.466    247.1
2051.0     0.467    245.9
2052.0     0.469    244.8
2053.0     0.470    243.6
2054.0     0.471    242.5
2055.0     0.472    241.3
2056.0     0.474    240.2
2057.0     0.475    239.1
2058.0     0.476    238.0
2059.0     0.476    236.9
2060.0     0.477    235.8
2061.0     0.478    234.7
2062.0     0.478    233.6
2063.0     0.479    232.5
2064.0     0.479    231.4
2065.0     0.480    230.3
2066.0     0.480    229.2
2067.0     0.480    228.1
2068.0     0.480    227.0
2069.0     0.481    225.9
2070.0     0.481    224.8
2071.0     0.481    223.7
2072.0     0.480    222.6
2073.0     0.480    221.5
2074.0     0.480    220.4
2075.0     0.480    219.3
2076.0     0.479    218.2
2077.0     0.479    217.1
2078.0     0.478    216.0
2079.0     0.478    214.9
2080.0     0.477    213.8
2081.0     0.477    212.7
2082.0     0.476    211.6
2083.0     0.475    210.5
2084.0     0.474    209.4
2085.0     0.474    208.3
2086.0     0.473    207.1
2087.0     0.472    206.0
2088.0     0.471    204.9
2089.0     0.470    203.7
2090.0     0.469    202.6
2091.0     0.468    201.4
2092.0     0.466    200.3
2093.0     0.465    199.1
2094.0     0.464    198.0
2095.0     0.463    196.8
2096.0     0.462    195.6
2097.0     0.460    194.4
2098.0     0.459    193.2
2099.0     0.458    192.0
2100.0     0.457    190.8
2101.0     0.455    189.6
2102.0     0.454    188.4
2103.0     0.453    187.2
2104.0     0.451    185.9
2105.0     0.450    184.7
2106.0     0.448    183.4
2107.0     0.447    182.2
2108.0     0.446    180.9
2109.0     0.444    179.6
2110.0     0.443    178.4
2111.0     0.441    177.1
2112.0     0.440    175.8
2113.0     0.439    174.5
2114.0     0.437    173.2
2115.0     0.436    171.8
2116.0     0.435    170.5
2117.0     0.433    169.2
2118.0     0.432    167.8
2119.0     0.431    166.5
2120.0     0.429    165.1
2121.0     0.428    163.7
2122.0     0.427    162.4
2123.0     0.426    161.0
2124.0     0.424    159.6
2125.0     0.423    158.2
2126.0     0.422    156.8
2127.0     0.421    155.3
2128.0     0.420    153.9
2129.0     0.419    152.5
2130.0     0.418    151.0
2131.0     0.416    149.6
2132.0     0.415    148.1
2133.0     0.414    146.7
2134.0     0.413    145.2
2135.0     0.413    143.7
2136.0     0.412    142.2






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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