Double Star Calculator - Orbit

Orbital Elements for A2833

WDS:	A2833	WDS ID/Discoverer
P:	209.090	Orbital period (years)
a:	0.429	Semi-major axis (arcseconds)
i:	43.1	Inclination (degrees)
Ω:	107.2	Longitude of ascending node (degrees)
T:	1987.130	Epoch of periastron passage (year)
e:	0.927	Eccentricity
ω:	240.7	Longitude of periastron (degrees)
Start-Year:	1920.455	Year
End-Year:	2129.545	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2833
Position:	065456.96+115756.7	Epoch-2000 right ascension and declination
WDS-ID:	06549+1158	WDS designation
Discoverer Code:	A2833	Discover designation and components
ADS number:	5571	Aitken Double Star catalog
HD number:	50722	HD catalog number
Hipparcos number:	33240	Hipparcos catalog number
V1:	8.29	Magnitude of the primary
V2:	9.21	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	FMR2020a	Reference

Double Star Orbit for A2833

WDS 6th Orbit including measures of A2833

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

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of A2833

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.521   145.01
--------------------------
1920.45    0.585   167.87
1921.45    0.582   168.12
1922.45    0.578   168.38
1923.45    0.574   168.64
1924.45    0.570   168.91
1925.45    0.566   169.18
1926.45    0.562   169.45
1927.45    0.558   169.72
1928.45    0.554   170.01
1929.45    0.549   170.29
1930.45    0.545   170.58
1931.45    0.541   170.87
1932.45    0.536   171.17
1933.45    0.531   171.48
1934.45    0.526   171.79
1935.45    0.521   172.11
1936.45    0.516   172.43
1937.45    0.511   172.76
1938.45    0.506   173.09
1939.45    0.501   173.43
1940.45    0.495   173.78
1941.45    0.490   174.14
1942.45    0.484   174.51
1943.45    0.478   174.88
1944.45    0.472   175.27
1945.45    0.466   175.66
1946.45    0.460   176.06
1947.45    0.454   176.48
1948.45    0.448   176.91
1949.45    0.441   177.35
1950.45    0.435   177.80
1951.45    0.428   178.26
1952.45    0.421   178.75
1953.45    0.414   179.24
1954.45    0.407   179.76
1955.45    0.400   180.29
1956.45    0.392   180.84
1957.45    0.385   181.42
1958.45    0.377   182.02
1959.45    0.369   182.64
1960.45    0.361   183.29
1961.45    0.353   183.98
1962.45    0.344   184.69
1963.45    0.336   185.44
1964.45    0.327   186.23
1965.45    0.318   187.07
1966.45    0.308   187.95
1967.45    0.299   188.90
1968.45    0.289   189.90
1969.45    0.279   190.97
1970.45    0.269   192.12
1971.45    0.259   193.37
1972.45    0.248   194.72
1973.45    0.237   196.19
1974.45    0.226   197.81
1975.45    0.214   199.61
1976.45    0.202   201.61
1977.45    0.190   203.88
1978.45    0.177   206.47
1979.45    0.163   209.48
1980.45    0.149   213.03
1981.45    0.135   217.34
1982.45    0.119   222.73
1983.45    0.103   229.76
1984.45    0.086   239.53
1985.45    0.067   254.62
1986.45    0.043   284.12
1987.45    0.025    27.39
1988.45    0.061    87.46
1989.45    0.094   102.48
1990.45    0.122   109.99
1991.45    0.147   114.81
1992.45    0.169   118.31
1993.45    0.189   121.03
1994.45    0.207   123.24
1995.45    0.225   125.10
1996.45    0.241   126.70
1997.45    0.256   128.11
1998.45    0.271   129.36
1999.45    0.285   130.48
2000.45    0.298   131.50
2001.45    0.311   132.44
2002.45    0.323   133.30
2003.45    0.335   134.11
2004.45    0.346   134.86
2005.45    0.357   135.56
2006.45    0.367   136.22
2007.45    0.377   136.85
2008.45    0.387   137.44
2009.45    0.396   138.01
2010.45    0.406   138.55
2011.45    0.415   139.07
2012.45    0.423   139.56
2013.45    0.431   140.04
2014.45    0.440   140.49
2015.45    0.448   140.93
2016.45    0.455   141.36
2017.45    0.463   141.77
2018.45    0.470   142.17
2019.45    0.477   142.56
2020.45    0.484   142.93
2021.45    0.490   143.30
2022.45    0.497   143.66
2023.45    0.503   144.00
2024.45    0.509   144.34
2025.45    0.515   144.67
2026.45    0.521   144.99
2027.45    0.527   145.31
2028.45    0.532   145.62
2029.45    0.538   145.92
2030.45    0.543   146.22
2031.45    0.548   146.51
2032.45    0.553   146.80
2033.45    0.558   147.08
2034.45    0.563   147.36
2035.45    0.567   147.63
2036.45    0.572   147.90
2037.45    0.576   148.16
2038.45    0.580   148.42
2039.45    0.584   148.67
2040.45    0.588   148.93
2041.45    0.592   149.18
2042.45    0.596   149.42
2043.45    0.599   149.67
2044.45    0.603   149.91
2045.45    0.606   150.14
2046.45    0.609   150.38
2047.45    0.613   150.61
2048.45    0.616   150.84
2049.45    0.619   151.07
2050.45    0.622   151.29
2051.45    0.624   151.52
2052.45    0.627   151.74
2053.45    0.630   151.96
2054.45    0.632   152.18
2055.45    0.634   152.39
2056.45    0.637   152.61
2057.45    0.639   152.82
2058.45    0.641   153.03
2059.45    0.643   153.24
2060.45    0.645   153.45
2061.45    0.647   153.66
2062.45    0.649   153.87
2063.45    0.650   154.07
2064.45    0.652   154.28
2065.45    0.653   154.48
2066.45    0.655   154.68
2067.45    0.656   154.89
2068.45    0.657   155.09
2069.45    0.659   155.29
2070.45    0.660   155.49
2071.45    0.661   155.69
2072.45    0.662   155.89
2073.45    0.662   156.08
2074.45    0.663   156.28
2075.45    0.664   156.48
2076.45    0.664   156.68
2077.45    0.665   156.87
2078.45    0.665   157.07
2079.45    0.666   157.26
2080.45    0.666   157.46
2081.45    0.666   157.65
2082.45    0.666   157.85
2083.45    0.666   158.05
2084.45    0.666   158.24
2085.45    0.666   158.44
2086.45    0.666   158.63
2087.45    0.666   158.83
2088.45    0.666   159.02
2089.45    0.665   159.22
2090.45    0.665   159.42
2091.45    0.664   159.61
2092.45    0.663   159.81
2093.45    0.663   160.01
2094.45    0.662   160.20
2095.45    0.661   160.40
2096.45    0.660   160.60
2097.45    0.659   160.80
2098.45    0.658   161.00
2099.45    0.657   161.20
2100.45    0.656   161.40
2101.45    0.654   161.61
2102.45    0.653   161.81
2103.45    0.651   162.01
2104.45    0.650   162.22
2105.45    0.648   162.42
2106.45    0.646   162.63
2107.45    0.645   162.84
2108.45    0.643   163.05
2109.45    0.641   163.26
2110.45    0.639   163.47
2111.45    0.637   163.69
2112.45    0.635   163.90
2113.45    0.632   164.12
2114.45    0.630   164.33
2115.45    0.628   164.55
2116.45    0.625   164.77
2117.45    0.623   165.00
2118.45    0.620   165.22
2119.45    0.617   165.45
2120.45    0.614   165.68
2121.45    0.612   165.91
2122.45    0.609   166.14
2123.45    0.606   166.38
2124.45    0.602   166.62
2125.45    0.599   166.86
2126.45    0.596   167.10
2127.45    0.593   167.34
2128.45    0.589   167.59
2129.45    0.586   167.84

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 15:52:45