Double Star Calculator - Orbit

Orbital Elements for A2205
WDS: A2205 WDS ID/Discoverer
P: 165.050 Orbital period (years)
a: 0.281 Semi-major axis (arcseconds)
i: 138.9 Inclination (degrees)
Ω: 126.8 Longitude of ascending node (degrees)
T: 1961.420 Epoch of periastron passage (year)
e: 0.776 Eccentricity
ω: 309.2 Longitude of periastron (degrees)
Start-Year: 1942.475 Year
End-Year: 2107.525 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for A2205
Position: 004253.20+204635.6 Epoch-2000 right ascension and declination
WDS-ID: 00429+2047 WDS designation
Discoverer Code: A2205 Discover designation and components
ADS number: 597 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 3373 Hipparcos catalog number
V1: 10.26 Magnitude of the primary
V2: 10.09 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: USN2017b Reference

Double Star Orbit for A2205



WDS 6th Orbit including measures of A2205

-- 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 A2205
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.400   357.76
--------------------------
1942.47    0.263   313.51
1943.47    0.255   312.29
1944.47    0.246   310.98
1945.47    0.237   309.57
1946.47    0.227   308.05
1947.47    0.217   306.39
1948.47    0.206   304.56
1949.47    0.195   302.53
1950.47    0.184   300.25
1951.47    0.171   297.65
1952.47    0.158   294.64
1953.47    0.145   291.08
1954.47    0.130   286.75
1955.47    0.115   281.32
1956.47    0.100   274.21
1957.47    0.084   264.39
1958.47    0.068   250.01
1959.47    0.056   228.28
1960.47    0.051   198.47
1961.47    0.055   168.01
1962.47    0.064   144.44
1963.47    0.075   127.34
1964.47    0.084   114.37
1965.47    0.093   103.99
1966.47    0.102    95.35
1967.47    0.109    87.99
1968.47    0.117    81.60
1969.47    0.124    75.98
1970.47    0.132    70.98
1971.47    0.139    66.51
1972.47    0.146    62.48
1973.47    0.153    58.82
1974.47    0.160    55.48
1975.47    0.167    52.41
1976.47    0.174    49.59
1977.47    0.181    46.98
1978.47    0.187    44.56
1979.47    0.194    42.30
1980.47    0.200    40.19
1981.47    0.207    38.21
1982.47    0.213    36.35
1983.47    0.219    34.60
1984.47    0.225    32.94
1985.47    0.231    31.36
1986.47    0.237    29.87
1987.47    0.243    28.45
1988.47    0.249    27.09
1989.47    0.254    25.80
1990.47    0.260    24.56
1991.47    0.265    23.37
1992.47    0.271    22.23
1993.47    0.276    21.14
1994.47    0.281    20.08
1995.47    0.286    19.06
1996.47    0.291    18.08
1997.47    0.296    17.13
1998.47    0.301    16.21
1999.47    0.306    15.32
2000.47    0.310    14.46
2001.47    0.315    13.62
2002.47    0.319    12.81
2003.47    0.324    12.01
2004.47    0.328    11.24
2005.47    0.332    10.49
2006.47    0.336     9.76
2007.47    0.340     9.04
2008.47    0.344     8.34
2009.47    0.348     7.66
2010.47    0.352     6.99
2011.47    0.355     6.33
2012.47    0.359     5.69
2013.47    0.362     5.06
2014.47    0.366     4.44
2015.47    0.369     3.84
2016.47    0.372     3.24
2017.47    0.376     2.66
2018.47    0.379     2.08
2019.47    0.382     1.51
2020.47    0.385     0.96
2021.47    0.387     0.41
2022.47    0.390   359.87
2023.47    0.393   359.33
2024.47    0.395   358.80
2025.47    0.398   358.28
2026.47    0.400   357.77
2027.47    0.403   357.26
2028.47    0.405   356.76
2029.47    0.407   356.26
2030.47    0.409   355.77
2031.47    0.411   355.29
2032.47    0.413   354.81
2033.47    0.415   354.33
2034.47    0.417   353.85
2035.47    0.419   353.39
2036.47    0.420   352.92
2037.47    0.422   352.46
2038.47    0.423   352.00
2039.47    0.424   351.54
2040.47    0.426   351.09
2041.47    0.427   350.64
2042.47    0.428   350.19
2043.47    0.429   349.75
2044.47    0.430   349.30
2045.47    0.431   348.86
2046.47    0.432   348.42
2047.47    0.432   347.98
2048.47    0.433   347.54
2049.47    0.433   347.11
2050.47    0.434   346.67
2051.47    0.434   346.24
2052.47    0.434   345.80
2053.47    0.434   345.37
2054.47    0.434   344.93
2055.47    0.434   344.50
2056.47    0.434   344.07
2057.47    0.434   343.63
2058.47    0.434   343.20
2059.47    0.433   342.76
2060.47    0.433   342.33
2061.47    0.432   341.89
2062.47    0.432   341.45
2063.47    0.431   341.01
2064.47    0.430   340.57
2065.47    0.429   340.12
2066.47    0.428   339.68
2067.47    0.427   339.23
2068.47    0.425   338.78
2069.47    0.424   338.32
2070.47    0.422   337.86
2071.47    0.421   337.40
2072.47    0.419   336.94
2073.47    0.417   336.47
2074.47    0.415   336.00
2075.47    0.413   335.52
2076.47    0.411   335.04
2077.47    0.408   334.55
2078.47    0.406   334.06
2079.47    0.403   333.56
2080.47    0.401   333.05
2081.47    0.398   332.54
2082.47    0.395   332.01
2083.47    0.392   331.48
2084.47    0.388   330.95
2085.47    0.385   330.40
2086.47    0.382   329.84
2087.47    0.378   329.27
2088.47    0.374   328.70
2089.47    0.370   328.10
2090.47    0.366   327.50
2091.47    0.361   326.88
2092.47    0.357   326.25
2093.47    0.352   325.59
2094.47    0.347   324.93
2095.47    0.342   324.24
2096.47    0.337   323.53
2097.47    0.332   322.80
2098.47    0.326   322.04
2099.47    0.320   321.25
2100.47    0.314   320.44
2101.47    0.308   319.59
2102.47    0.301   318.71
2103.47    0.294   317.78
2104.47    0.287   316.81
2105.47    0.279   315.79
2106.47    0.272   314.71
2107.47    0.264   313.57



 

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 14:42:14


www.stella-vega.de