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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:22:16

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:	1943.0	Year
End-Year:	2107.0	Year
Epoch:	2025.0	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' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2205

WDS 6th Orbit including measures of A2205

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

Ephemeris of A2205

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.397    358.5
-------------------------
1943.0     0.259    312.9
1944.0     0.250    311.6
1945.0     0.241    310.3
1946.0     0.232    308.8
1947.0     0.222    307.2
1948.0     0.211    305.5
1949.0     0.201    303.5
1950.0     0.189    301.4
1951.0     0.177    298.9
1952.0     0.165    296.1
1953.0     0.151    292.8
1954.0     0.137    288.9
1955.0     0.123    284.1
1956.0     0.107    277.8
1957.0     0.091    269.5
1958.0     0.075    257.6
1959.0     0.061    239.7
1960.0     0.052    213.4
1961.0     0.052    181.9
1962.0     0.059    154.7
1963.0     0.070    134.8
1964.0     0.080    120.1
1965.0     0.089    108.7
1966.0     0.098     99.3
1967.0     0.106     91.4
1968.0     0.113     84.5
1969.0     0.121     78.6
1970.0     0.128     73.3
1971.0     0.136     68.6
1972.0     0.143     64.3
1973.0     0.150     60.5
1974.0     0.157     57.0
1975.0     0.164     53.8
1976.0     0.171     50.9
1977.0     0.177     48.2
1978.0     0.184     45.7
1979.0     0.191     43.4
1980.0     0.197     41.2
1981.0     0.204     39.1
1982.0     0.210     37.2
1983.0     0.216     35.4
1984.0     0.222     33.7
1985.0     0.228     32.1
1986.0     0.234     30.6
1987.0     0.240     29.1
1988.0     0.246     27.7
1989.0     0.252     26.4
1990.0     0.257     25.1
1991.0     0.263     23.9
1992.0     0.268     22.8
1993.0     0.273     21.7
1994.0     0.279     20.6
1995.0     0.284     19.5
1996.0     0.289     18.5
1997.0     0.294     17.6
1998.0     0.299     16.6
1999.0     0.303     15.7
2000.0     0.308     14.9
2001.0     0.313     14.0
2002.0     0.317     13.2
2003.0     0.321     12.4
2004.0     0.326     11.6
2005.0     0.330     10.8
2006.0     0.334     10.1
2007.0     0.338      9.4
2008.0     0.342      8.7
2009.0     0.346      8.0
2010.0     0.350      7.3
2011.0     0.354      6.6
2012.0     0.357      6.0
2013.0     0.361      5.4
2014.0     0.364      4.7
2015.0     0.368      4.1
2016.0     0.371      3.5
2017.0     0.374      2.9
2018.0     0.377      2.4
2019.0     0.380      1.8
2020.0     0.383      1.2
2021.0     0.386      0.7
2022.0     0.389      0.1
2023.0     0.392    359.6
2024.0     0.394    359.1
2025.0     0.397    358.5
2026.0     0.399    358.0
2027.0     0.402    357.5
2028.0     0.404    357.0
2029.0     0.406    356.5
2030.0     0.408    356.0
2031.0     0.410    355.5
2032.0     0.412    355.0
2033.0     0.414    354.6
2034.0     0.416    354.1
2035.0     0.418    353.6
2036.0     0.419    353.1
2037.0     0.421    352.7
2038.0     0.422    352.2
2039.0     0.424    351.8
2040.0     0.425    351.3
2041.0     0.426    350.9
2042.0     0.427    350.4
2043.0     0.429    350.0
2044.0     0.429    349.5
2045.0     0.430    349.1
2046.0     0.431    348.6
2047.0     0.432    348.2
2048.0     0.433    347.8
2049.0     0.433    347.3
2050.0     0.434    346.9
2051.0     0.434    346.4
2052.0     0.434    346.0
2053.0     0.434    345.6
2054.0     0.434    345.1
2055.0     0.434    344.7
2056.0     0.434    344.3
2057.0     0.434    343.8
2058.0     0.434    343.4
2059.0     0.434    343.0
2060.0     0.433    342.5
2061.0     0.433    342.1
2062.0     0.432    341.7
2063.0     0.431    341.2
2064.0     0.430    340.8
2065.0     0.429    340.3
2066.0     0.428    339.9
2067.0     0.427    339.4
2068.0     0.426    339.0
2069.0     0.424    338.5
2070.0     0.423    338.1
2071.0     0.421    337.6
2072.0     0.420    337.2
2073.0     0.418    336.7
2074.0     0.416    336.2
2075.0     0.414    335.7
2076.0     0.412    335.3
2077.0     0.410    334.8
2078.0     0.407    334.3
2079.0     0.405    333.8
2080.0     0.402    333.3
2081.0     0.399    332.8
2082.0     0.396    332.3
2083.0     0.393    331.7
2084.0     0.390    331.2
2085.0     0.387    330.7
2086.0     0.383    330.1
2087.0     0.380    329.5
2088.0     0.376    329.0
2089.0     0.372    328.4
2090.0     0.368    327.8
2091.0     0.364    327.2
2092.0     0.359    326.5
2093.0     0.355    325.9
2094.0     0.350    325.2
2095.0     0.345    324.6
2096.0     0.340    323.9
2097.0     0.334    323.1
2098.0     0.329    322.4
2099.0     0.323    321.6
2100.0     0.317    320.8
2101.0     0.311    320.0
2102.0     0.304    319.1
2103.0     0.297    318.2
2104.0     0.290    317.3
2105.0     0.283    316.3
2106.0     0.275    315.2

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.