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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:33:09

Orbital Elements for A957
WDS: A957 WDS ID/Discoverer
P: 219.970 Orbital period (years)
a: 0.471 Semi-major axis (arcseconds)
i: 125.3 Inclination (degrees)
Ω: 107.7 Longitude of ascending node (degrees)
T: 1870.070 Epoch of periastron passage (year)
e: 0.462 Eccentricity
ω: 250.1 Longitude of periastron (degrees)
Start-Year: 1916.0 Year
End-Year: 2134.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A957
Position: 020448.71+603022.7 Epoch-2000 right ascension and declination
WDS-ID: 02048+6030 WDS designation
Discoverer Code: A957 Discover designation and components
ADS number: 1632 Aitken Double Star catalog
HD number: 12529 HD catalog number
Hipparcos number: 9704 Hipparcos catalog number
V1: 8.52 Magnitude of the primary
V2: 10.48 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 A957



WDS 6th Orbit including measures of A957

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


Ephemeris of A957
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.367    355.2
-------------------------
1916.0     0.498     97.6
1917.0     0.501     96.9
1918.0     0.504     96.2
1919.0     0.507     95.4
1920.0     0.510     94.7
1921.0     0.512     94.0
1922.0     0.514     93.3
1923.0     0.516     92.6
1924.0     0.518     91.9
1925.0     0.519     91.2
1926.0     0.521     90.5
1927.0     0.522     89.8
1928.0     0.523     89.1
1929.0     0.524     88.5
1930.0     0.525     87.8
1931.0     0.526     87.1
1932.0     0.526     86.4
1933.0     0.526     85.8
1934.0     0.526     85.1
1935.0     0.526     84.4
1936.0     0.526     83.8
1937.0     0.526     83.1
1938.0     0.526     82.4
1939.0     0.525     81.7
1940.0     0.525     81.1
1941.0     0.524     80.4
1942.0     0.523     79.7
1943.0     0.522     79.0
1944.0     0.521     78.3
1945.0     0.520     77.7
1946.0     0.519     77.0
1947.0     0.518     76.3
1948.0     0.516     75.6
1949.0     0.515     74.9
1950.0     0.513     74.2
1951.0     0.511     73.5
1952.0     0.510     72.7
1953.0     0.508     72.0
1954.0     0.506     71.3
1955.0     0.504     70.6
1956.0     0.502     69.8
1957.0     0.500     69.1
1958.0     0.498     68.4
1959.0     0.496     67.6
1960.0     0.493     66.8
1961.0     0.491     66.1
1962.0     0.489     65.3
1963.0     0.486     64.5
1964.0     0.484     63.7
1965.0     0.482     62.9
1966.0     0.479     62.1
1967.0     0.476     61.3
1968.0     0.474     60.5
1969.0     0.471     59.6
1970.0     0.469     58.8
1971.0     0.466     58.0
1972.0     0.463     57.1
1973.0     0.461     56.2
1974.0     0.458     55.3
1975.0     0.455     54.4
1976.0     0.453     53.5
1977.0     0.450     52.6
1978.0     0.447     51.7
1979.0     0.444     50.8
1980.0     0.442     49.8
1981.0     0.439     48.9
1982.0     0.436     47.9
1983.0     0.434     46.9
1984.0     0.431     45.9
1985.0     0.428     44.9
1986.0     0.426     43.9
1987.0     0.423     42.8
1988.0     0.420     41.8
1989.0     0.418     40.7
1990.0     0.415     39.7
1991.0     0.413     38.6
1992.0     0.410     37.5
1993.0     0.408     36.4
1994.0     0.406     35.2
1995.0     0.403     34.1
1996.0     0.401     33.0
1997.0     0.399     31.8
1998.0     0.397     30.6
1999.0     0.395     29.4
2000.0     0.393     28.2
2001.0     0.391     27.0
2002.0     0.389     25.8
2003.0     0.387     24.6
2004.0     0.385     23.3
2005.0     0.384     22.1
2006.0     0.382     20.8
2007.0     0.381     19.5
2008.0     0.379     18.2
2009.0     0.378     16.9
2010.0     0.376     15.6
2011.0     0.375     14.3
2012.0     0.374     13.0
2013.0     0.373     11.6
2014.0     0.372     10.3
2015.0     0.371      8.9
2016.0     0.370      7.6
2017.0     0.370      6.2
2018.0     0.369      4.9
2019.0     0.369      3.5
2020.0     0.368      2.1
2021.0     0.368      0.8
2022.0     0.367    359.4
2023.0     0.367    358.0
2024.0     0.367    356.6
2025.0     0.367    355.2
2026.0     0.367    353.9
2027.0     0.367    352.5
2028.0     0.367    351.1
2029.0     0.367    349.7
2030.0     0.368    348.3
2031.0     0.368    347.0
2032.0     0.368    345.6
2033.0     0.369    344.2
2034.0     0.369    342.8
2035.0     0.370    341.5
2036.0     0.370    340.1
2037.0     0.371    338.8
2038.0     0.371    337.4
2039.0     0.372    336.1
2040.0     0.372    334.7
2041.0     0.373    333.4
2042.0     0.373    332.0
2043.0     0.374    330.7
2044.0     0.374    329.4
2045.0     0.375    328.1
2046.0     0.375    326.7
2047.0     0.376    325.4
2048.0     0.376    324.1
2049.0     0.376    322.8
2050.0     0.376    321.5
2051.0     0.376    320.2
2052.0     0.376    318.8
2053.0     0.376    317.5
2054.0     0.376    316.2
2055.0     0.376    314.9
2056.0     0.375    313.6
2057.0     0.374    312.2
2058.0     0.373    310.9
2059.0     0.372    309.6
2060.0     0.371    308.2
2061.0     0.369    306.9
2062.0     0.367    305.5
2063.0     0.365    304.1
2064.0     0.362    302.7
2065.0     0.360    301.3
2066.0     0.357    299.8
2067.0     0.353    298.3
2068.0     0.349    296.8
2069.0     0.345    295.3
2070.0     0.340    293.7
2071.0     0.335    292.1
2072.0     0.330    290.4
2073.0     0.324    288.6
2074.0     0.317    286.8
2075.0     0.310    284.9
2076.0     0.302    282.9
2077.0     0.294    280.9
2078.0     0.285    278.6
2079.0     0.276    276.3
2080.0     0.266    273.7
2081.0     0.256    271.0
2082.0     0.246    268.1
2083.0     0.235    264.9
2084.0     0.224    261.3
2085.0     0.213    257.4
2086.0     0.201    253.1
2087.0     0.191    248.2
2088.0     0.180    242.8
2089.0     0.171    236.7
2090.0     0.163    230.0
2091.0     0.156    222.7
2092.0     0.152    214.8
2093.0     0.149    206.6
2094.0     0.149    198.2
2095.0     0.152    189.9
2096.0     0.156    182.1
2097.0     0.163    174.8
2098.0     0.172    168.1
2099.0     0.181    162.1
2100.0     0.192    156.8
2101.0     0.204    152.0
2102.0     0.216    147.8
2103.0     0.228    144.0
2104.0     0.241    140.6
2105.0     0.254    137.6
2106.0     0.266    134.8
2107.0     0.278    132.3
2108.0     0.291    130.0
2109.0     0.302    127.9
2110.0     0.314    125.9
2111.0     0.325    124.1
2112.0     0.336    122.4
2113.0     0.347    120.8
2114.0     0.357    119.3
2115.0     0.367    117.9
2116.0     0.377    116.6
2117.0     0.386    115.3
2118.0     0.394    114.1
2119.0     0.403    112.9
2120.0     0.411    111.8
2121.0     0.419    110.7
2122.0     0.426    109.6
2123.0     0.433    108.6
2124.0     0.440    107.7
2125.0     0.446    106.7
2126.0     0.452    105.8
2127.0     0.458    104.9
2128.0     0.464    104.0
2129.0     0.469    103.2
2130.0     0.474    102.3
2131.0     0.479    101.5
2132.0     0.483    100.7
2133.0     0.487     99.9






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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