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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:10:02

Orbital Elements for A1999
WDS: A1999 WDS ID/Discoverer
P: 200.010 Orbital period (years)
a: 0.983 Semi-major axis (arcseconds)
i: 58.0 Inclination (degrees)
Ω: 198.1 Longitude of ascending node (degrees)
T: 2014.080 Epoch of periastron passage (year)
e: 0.589 Eccentricity
ω: 279.4 Longitude of periastron (degrees)
Start-Year: 1925.0 Year
End-Year: 2125.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1999
Position: 121526.22+400741.1 Epoch-2000 right ascension and declination
WDS-ID: 12154+4008 WDS designation
Discoverer Code: A1999 Discover designation and components
ADS number: 8480 Aitken Double Star catalog
HD number: 106592 HD catalog number
Hipparcos number: 59776 Hipparcos catalog number
V1: 9.09 Magnitude of the primary
V2: 11.33 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A1999



WDS 6th Orbit including measures of A1999

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


Ephemeris of A1999
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.553    195.0
-------------------------
1925.0     0.894    316.1
1926.0     0.898    317.0
1927.0     0.902    317.9
1928.0     0.906    318.8
1929.0     0.909    319.8
1930.0     0.913    320.7
1931.0     0.917    321.5
1932.0     0.920    322.4
1933.0     0.924    323.3
1934.0     0.928    324.2
1935.0     0.931    325.0
1936.0     0.935    325.9
1937.0     0.938    326.7
1938.0     0.942    327.6
1939.0     0.945    328.4
1940.0     0.948    329.2
1941.0     0.952    330.1
1942.0     0.955    330.9
1943.0     0.958    331.7
1944.0     0.961    332.5
1945.0     0.964    333.3
1946.0     0.966    334.1
1947.0     0.969    334.9
1948.0     0.972    335.7
1949.0     0.974    336.5
1950.0     0.976    337.3
1951.0     0.978    338.1
1952.0     0.980    338.8
1953.0     0.982    339.6
1954.0     0.984    340.4
1955.0     0.985    341.1
1956.0     0.987    341.9
1957.0     0.988    342.7
1958.0     0.989    343.4
1959.0     0.989    344.2
1960.0     0.990    345.0
1961.0     0.990    345.7
1962.0     0.990    346.5
1963.0     0.990    347.2
1964.0     0.989    348.0
1965.0     0.988    348.8
1966.0     0.987    349.5
1967.0     0.986    350.3
1968.0     0.984    351.1
1969.0     0.982    351.8
1970.0     0.979    352.6
1971.0     0.977    353.4
1972.0     0.973    354.2
1973.0     0.970    355.0
1974.0     0.966    355.8
1975.0     0.961    356.6
1976.0     0.957    357.4
1977.0     0.951    358.2
1978.0     0.945    359.0
1979.0     0.939    359.9
1980.0     0.932      0.7
1981.0     0.924      1.6
1982.0     0.916      2.4
1983.0     0.907      3.3
1984.0     0.898      4.3
1985.0     0.888      5.2
1986.0     0.877      6.1
1987.0     0.865      7.1
1988.0     0.852      8.1
1989.0     0.839      9.2
1990.0     0.824     10.3
1991.0     0.809     11.4
1992.0     0.793     12.5
1993.0     0.775     13.7
1994.0     0.756     15.0
1995.0     0.737     16.4
1996.0     0.715     17.8
1997.0     0.693     19.3
1998.0     0.669     20.9
1999.0     0.643     22.6
2000.0     0.616     24.5
2001.0     0.587     26.5
2002.0     0.557     28.8
2003.0     0.525     31.4
2004.0     0.491     34.3
2005.0     0.456     37.6
2006.0     0.419     41.5
2007.0     0.382     46.1
2008.0     0.344     51.8
2009.0     0.307     58.9
2010.0     0.273     67.7
2011.0     0.244     79.0
2012.0     0.224     92.7
2013.0     0.215    108.3
2014.0     0.220    124.2
2015.0     0.238    138.6
2016.0     0.265    150.4
2017.0     0.297    159.9
2018.0     0.332    167.5
2019.0     0.368    173.6
2020.0     0.403    178.6
2021.0     0.437    182.8
2022.0     0.469    186.4
2023.0     0.500    189.6
2024.0     0.528    192.4
2025.0     0.553    195.0
2026.0     0.577    197.3
2027.0     0.599    199.4
2028.0     0.619    201.4
2029.0     0.638    203.3
2030.0     0.655    205.1
2031.0     0.670    206.8
2032.0     0.684    208.4
2033.0     0.697    210.0
2034.0     0.709    211.5
2035.0     0.719    213.0
2036.0     0.729    214.4
2037.0     0.737    215.8
2038.0     0.745    217.1
2039.0     0.752    218.5
2040.0     0.759    219.8
2041.0     0.764    221.0
2042.0     0.770    222.3
2043.0     0.774    223.6
2044.0     0.778    224.8
2045.0     0.782    226.0
2046.0     0.785    227.2
2047.0     0.788    228.4
2048.0     0.790    229.6
2049.0     0.792    230.8
2050.0     0.794    232.0
2051.0     0.795    233.2
2052.0     0.797    234.4
2053.0     0.798    235.5
2054.0     0.798    236.7
2055.0     0.799    237.9
2056.0     0.799    239.0
2057.0     0.800    240.2
2058.0     0.800    241.4
2059.0     0.800    242.5
2060.0     0.800    243.7
2061.0     0.799    244.9
2062.0     0.799    246.0
2063.0     0.799    247.2
2064.0     0.799    248.4
2065.0     0.798    249.5
2066.0     0.798    250.7
2067.0     0.797    251.9
2068.0     0.797    253.0
2069.0     0.796    254.2
2070.0     0.796    255.4
2071.0     0.796    256.6
2072.0     0.795    257.7
2073.0     0.795    258.9
2074.0     0.795    260.1
2075.0     0.794    261.3
2076.0     0.794    262.5
2077.0     0.794    263.6
2078.0     0.794    264.8
2079.0     0.794    266.0
2080.0     0.794    267.2
2081.0     0.794    268.4
2082.0     0.794    269.6
2083.0     0.795    270.7
2084.0     0.795    271.9
2085.0     0.796    273.1
2086.0     0.796    274.3
2087.0     0.797    275.4
2088.0     0.798    276.6
2089.0     0.799    277.8
2090.0     0.800    278.9
2091.0     0.801    280.1
2092.0     0.802    281.3
2093.0     0.804    282.4
2094.0     0.805    283.6
2095.0     0.807    284.7
2096.0     0.808    285.9
2097.0     0.810    287.0
2098.0     0.812    288.1
2099.0     0.814    289.3
2100.0     0.816    290.4
2101.0     0.818    291.5
2102.0     0.821    292.6
2103.0     0.823    293.7
2104.0     0.826    294.8
2105.0     0.828    295.9
2106.0     0.831    297.0
2107.0     0.834    298.0
2108.0     0.837    299.1
2109.0     0.839    300.2
2110.0     0.842    301.2
2111.0     0.846    302.3
2112.0     0.849    303.3
2113.0     0.852    304.3
2114.0     0.855    305.4
2115.0     0.859    306.4
2116.0     0.862    307.4
2117.0     0.865    308.4
2118.0     0.869    309.4
2119.0     0.873    310.4
2120.0     0.876    311.3
2121.0     0.880    312.3
2122.0     0.883    313.3
2123.0     0.887    314.2
2124.0     0.891    315.1






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.


www.stella-vega.de