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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:32:31

Orbital Elements for A2854AB

WDS:	A2854AB	WDS ID/Discoverer
P:	300.000	Orbital period (years)
a:	0.36	Semi-major axis (arcseconds)
i:	96.0	Inclination (degrees)
Ω:	27.4	Longitude of ascending node (degrees)
T:	1979.210	Epoch of periastron passage (year)
e:	0.66	Eccentricity
ω:	119.3	Longitude of periastron (degrees)
Start-Year:	1875.0	Year
End-Year:	2175.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2854AB

Position:	071634.15+092011.8	Epoch-2000 right ascension and declination
WDS-ID:	07166+0920	WDS designation
Discoverer Code:	A2854AB	Discover designation and components
ADS number:	5946	Aitken Double Star catalog
HD number:	56225	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.3	Magnitude of the primary
V2:	10.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for A2854AB

WDS 6th Orbit including measures of A2854AB

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

Ephemeris of A2854AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.117    188.9
-------------------------
1875.0     0.396     33.4
1876.0     0.397     33.3
1877.0     0.399     33.2
1878.0     0.400     33.1
1879.0     0.401     33.1
1880.0     0.402     33.0
1881.0     0.403     32.9
1882.0     0.404     32.8
1883.0     0.405     32.8
1884.0     0.406     32.7
1885.0     0.406     32.6
1886.0     0.407     32.5
1887.0     0.408     32.5
1888.0     0.409     32.4
1889.0     0.409     32.3
1890.0     0.410     32.2
1891.0     0.410     32.2
1892.0     0.411     32.1
1893.0     0.411     32.0
1894.0     0.411     32.0
1895.0     0.411     31.9
1896.0     0.412     31.8
1897.0     0.412     31.7
1898.0     0.412     31.7
1899.0     0.412     31.6
1900.0     0.412     31.5
1901.0     0.412     31.5
1902.0     0.411     31.4
1903.0     0.411     31.3
1904.0     0.411     31.2
1905.0     0.410     31.2
1906.0     0.410     31.1
1907.0     0.409     31.0
1908.0     0.408     30.9
1909.0     0.408     30.9
1910.0     0.407     30.8
1911.0     0.406     30.7
1912.0     0.405     30.6
1913.0     0.404     30.6
1914.0     0.403     30.5
1915.0     0.402     30.4
1916.0     0.400     30.3
1917.0     0.399     30.3
1918.0     0.397     30.2
1919.0     0.396     30.1
1920.0     0.394     30.0
1921.0     0.392     30.0
1922.0     0.390     29.9
1923.0     0.388     29.8
1924.0     0.386     29.7
1925.0     0.384     29.6
1926.0     0.382     29.6
1927.0     0.379     29.5
1928.0     0.377     29.4
1929.0     0.374     29.3
1930.0     0.371     29.2
1931.0     0.368     29.1
1932.0     0.365     29.0
1933.0     0.362     28.9
1934.0     0.358     28.8
1935.0     0.355     28.7
1936.0     0.351     28.6
1937.0     0.347     28.5
1938.0     0.343     28.4
1939.0     0.339     28.3
1940.0     0.335     28.2
1941.0     0.330     28.1
1942.0     0.326     28.0
1943.0     0.321     27.9
1944.0     0.316     27.8
1945.0     0.311     27.6
1946.0     0.305     27.5
1947.0     0.299     27.4
1948.0     0.293     27.2
1949.0     0.287     27.1
1950.0     0.281     26.9
1951.0     0.274     26.8
1952.0     0.267     26.6
1953.0     0.260     26.4
1954.0     0.253     26.3
1955.0     0.245     26.1
1956.0     0.237     25.9
1957.0     0.228     25.6
1958.0     0.220     25.4
1959.0     0.210     25.1
1960.0     0.201     24.8
1961.0     0.191     24.5
1962.0     0.181     24.2
1963.0     0.170     23.8
1964.0     0.159     23.3
1965.0     0.147     22.8
1966.0     0.135     22.2
1967.0     0.123     21.4
1968.0     0.110     20.5
1969.0     0.096     19.4
1970.0     0.082     17.8
1971.0     0.068     15.6
1972.0     0.054     12.3
1973.0     0.039      6.4
1974.0     0.025    353.8
1975.0     0.014    317.7
1976.0     0.017    258.2
1977.0     0.029    233.1
1978.0     0.044    223.5
1979.0     0.058    218.7
1980.0     0.072    215.8
1981.0     0.085    213.8
1982.0     0.098    212.3
1983.0     0.109    211.2
1984.0     0.120    210.2
1985.0     0.129    209.4
1986.0     0.138    208.7
1987.0     0.145    208.1
1988.0     0.152    207.6
1989.0     0.157    207.1
1990.0     0.162    206.6
1991.0     0.166    206.1
1992.0     0.170    205.7
1993.0     0.172    205.3
1994.0     0.174    204.9
1995.0     0.176    204.5
1996.0     0.177    204.1
1997.0     0.178    203.7
1998.0     0.179    203.3
1999.0     0.179    202.9
2000.0     0.178    202.6
2001.0     0.178    202.2
2002.0     0.177    201.8
2003.0     0.176    201.4
2004.0     0.174    201.0
2005.0     0.173    200.6
2006.0     0.171    200.2
2007.0     0.169    199.7
2008.0     0.167    199.3
2009.0     0.165    198.9
2010.0     0.163    198.4
2011.0     0.160    197.9
2012.0     0.157    197.5
2013.0     0.155    197.0
2014.0     0.152    196.4
2015.0     0.149    195.9
2016.0     0.146    195.3
2017.0     0.143    194.8
2018.0     0.140    194.1
2019.0     0.137    193.5
2020.0     0.134    192.8
2021.0     0.130    192.1
2022.0     0.127    191.4
2023.0     0.124    190.6
2024.0     0.120    189.8
2025.0     0.117    188.9
2026.0     0.114    188.0
2027.0     0.110    187.0
2028.0     0.107    186.0
2029.0     0.103    184.9
2030.0     0.100    183.7
2031.0     0.096    182.4
2032.0     0.093    181.1
2033.0     0.090    179.6
2034.0     0.086    178.0
2035.0     0.083    176.3
2036.0     0.080    174.5
2037.0     0.077    172.5
2038.0     0.074    170.3
2039.0     0.071    168.0
2040.0     0.068    165.4
2041.0     0.065    162.7
2042.0     0.062    159.7
2043.0     0.060    156.4
2044.0     0.058    152.9
2045.0     0.056    149.1
2046.0     0.054    145.0
2047.0     0.053    140.7
2048.0     0.051    136.2
2049.0     0.051    131.5
2050.0     0.050    126.7
2051.0     0.050    121.8
2052.0     0.050    116.9
2053.0     0.051    112.1
2054.0     0.052    107.4
2055.0     0.053    102.9
2056.0     0.054     98.6
2057.0     0.056     94.6
2058.0     0.058     90.8
2059.0     0.060     87.3
2060.0     0.063     84.1
2061.0     0.065     81.1
2062.0     0.068     78.4
2063.0     0.071     75.9
2064.0     0.074     73.6
2065.0     0.077     71.4
2066.0     0.081     69.5
2067.0     0.084     67.7
2068.0     0.087     66.0
2069.0     0.091     64.4
2070.0     0.094     63.0
2071.0     0.098     61.7
2072.0     0.101     60.4
2073.0     0.105     59.3
2074.0     0.108     58.2
2075.0     0.112     57.2
2076.0     0.116     56.3
2077.0     0.119     55.4
2078.0     0.123     54.5
2079.0     0.127     53.7
2080.0     0.130     53.0
2081.0     0.134     52.3
2082.0     0.138     51.6
2083.0     0.141     51.0
2084.0     0.145     50.4
2085.0     0.149     49.8
2086.0     0.152     49.3
2087.0     0.156     48.8
2088.0     0.160     48.3
2089.0     0.163     47.8
2090.0     0.167     47.4
2091.0     0.171     47.0
2092.0     0.174     46.5
2093.0     0.178     46.2
2094.0     0.182     45.8
2095.0     0.185     45.4
2096.0     0.189     45.1
2097.0     0.192     44.7
2098.0     0.196     44.4
2099.0     0.199     44.1
2100.0     0.203     43.8
2101.0     0.206     43.5
2102.0     0.210     43.2
2103.0     0.213     42.9
2104.0     0.217     42.7
2105.0     0.220     42.4
2106.0     0.224     42.2
2107.0     0.227     41.9
2108.0     0.231     41.7
2109.0     0.234     41.5
2110.0     0.237     41.3
2111.0     0.241     41.0
2112.0     0.244     40.8
2113.0     0.247     40.6
2114.0     0.251     40.4
2115.0     0.254     40.2
2116.0     0.257     40.1
2117.0     0.260     39.9
2118.0     0.263     39.7
2119.0     0.267     39.5
2120.0     0.270     39.4
2121.0     0.273     39.2
2122.0     0.276     39.0
2123.0     0.279     38.9
2124.0     0.282     38.7
2125.0     0.285     38.6
2126.0     0.288     38.4
2127.0     0.291     38.3
2128.0     0.294     38.1
2129.0     0.297     38.0
2130.0     0.300     37.8
2131.0     0.303     37.7
2132.0     0.305     37.6
2133.0     0.308     37.4
2134.0     0.311     37.3
2135.0     0.314     37.2
2136.0     0.316     37.1
2137.0     0.319     37.0
2138.0     0.322     36.8
2139.0     0.324     36.7
2140.0     0.327     36.6
2141.0     0.330     36.5
2142.0     0.332     36.4
2143.0     0.335     36.3
2144.0     0.337     36.2
2145.0     0.340     36.0
2146.0     0.342     35.9
2147.0     0.344     35.8
2148.0     0.347     35.7
2149.0     0.349     35.6
2150.0     0.351     35.5
2151.0     0.354     35.4
2152.0     0.356     35.3
2153.0     0.358     35.2
2154.0     0.360     35.2
2155.0     0.362     35.1
2156.0     0.364     35.0
2157.0     0.366     34.9
2158.0     0.368     34.8
2159.0     0.370     34.7
2160.0     0.372     34.6
2161.0     0.374     34.5
2162.0     0.376     34.4
2163.0     0.378     34.3
2164.0     0.380     34.3
2165.0     0.381     34.2
2166.0     0.383     34.1
2167.0     0.385     34.0
2168.0     0.386     33.9
2169.0     0.388     33.8
2170.0     0.389     33.8
2171.0     0.391     33.7
2172.0     0.392     33.6
2173.0     0.394     33.5
2174.0     0.395     33.4

Disclaimer

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.