Double Star Calculator - Orbit

Orbital Elements for A1745CA,CB

WDS:	A1745CA,CB	WDS ID/Discoverer
P:	279.500	Orbital period (years)
a:	0.479	Semi-major axis (arcseconds)
i:	40.0	Inclination (degrees)
Ω:	48.0	Longitude of ascending node (degrees)
T:	1928.500	Epoch of periastron passage (year)
e:	0.73	Eccentricity
ω:	96.0	Longitude of periastron (degrees)
Start-Year:	1885.25	Year
End-Year:	2164.75	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1745CA,CB
Position:	082108.26+472409.1	Epoch-2000 right ascension and declination
WDS-ID:	08211+4725	WDS designation
Discoverer Code:	A1745CA,CB	Discover designation and components
ADS number:	6746	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	40927	Hipparcos catalog number
V1:	10.33	Magnitude of the primary
V2:	11.10	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1978	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Hei1979b	Reference

Double Star Orbit for A1745CA,CB

WDS 6th Orbit including measures of A1745CA,CB

-- 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 A1745CA,CB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.598   309.12
--------------------------
1885.25    0.464     9.97
1886.25    0.460    10.69
1887.25    0.455    11.43
1888.25    0.450    12.19
1889.25    0.444    12.97
1890.25    0.439    13.76
1891.25    0.434    14.57
1892.25    0.428    15.40
1893.25    0.422    16.26
1894.25    0.417    17.14
1895.25    0.411    18.04
1896.25    0.404    18.97
1897.25    0.398    19.93
1898.25    0.392    20.93
1899.25    0.385    21.95
1900.25    0.378    23.01
1901.25    0.371    24.12
1902.25    0.364    25.26
1903.25    0.357    26.45
1904.25    0.349    27.69
1905.25    0.341    28.99
1906.25    0.333    30.36
1907.25    0.325    31.79
1908.25    0.316    33.29
1909.25    0.307    34.89
1910.25    0.298    36.58
1911.25    0.288    38.38
1912.25    0.278    40.31
1913.25    0.268    42.38
1914.25    0.257    44.63
1915.25    0.246    47.06
1916.25    0.235    49.74
1917.25    0.223    52.69
1918.25    0.210    55.99
1919.25    0.198    59.71
1920.25    0.184    63.95
1921.25    0.171    68.86
1922.25    0.157    74.63
1923.25    0.143    81.51
1924.25    0.130    89.83
1925.25    0.118    99.94
1926.25    0.108   112.15
1927.25    0.101   126.38
1928.25    0.099   141.89
1929.25    0.102   157.31
1930.25    0.109   171.34
1931.25    0.119   183.33
1932.25    0.131   193.29
1933.25    0.144   201.54
1934.25    0.157   208.42
1935.25    0.170   214.24
1936.25    0.182   219.24
1937.25    0.194   223.61
1938.25    0.206   227.47
1939.25    0.217   230.92
1940.25    0.228   234.03
1941.25    0.239   236.87
1942.25    0.249   239.48
1943.25    0.258   241.89
1944.25    0.267   244.13
1945.25    0.276   246.22
1946.25    0.285   248.19
1947.25    0.293   250.04
1948.25    0.301   251.80
1949.25    0.309   253.46
1950.25    0.316   255.05
1951.25    0.324   256.56
1952.25    0.331   258.00
1953.25    0.338   259.39
1954.25    0.344   260.72
1955.25    0.351   262.00
1956.25    0.357   263.24
1957.25    0.363   264.43
1958.25    0.369   265.58
1959.25    0.375   266.70
1960.25    0.381   267.78
1961.25    0.387   268.83
1962.25    0.392   269.85
1963.25    0.398   270.84
1964.25    0.403   271.81
1965.25    0.408   272.75
1966.25    0.413   273.67
1967.25    0.418   274.57
1968.25    0.423   275.44
1969.25    0.428   276.30
1970.25    0.432   277.13
1971.25    0.437   277.95
1972.25    0.441   278.76
1973.25    0.446   279.54
1974.25    0.450   280.31
1975.25    0.454   281.07
1976.25    0.459   281.81
1977.25    0.463   282.54
1978.25    0.467   283.26
1979.25    0.471   283.96
1980.25    0.475   284.65
1981.25    0.478   285.34
1982.25    0.482   286.01
1983.25    0.486   286.67
1984.25    0.490   287.32
1985.25    0.493   287.96
1986.25    0.497   288.59
1987.25    0.500   289.21
1988.25    0.503   289.83
1989.25    0.507   290.43
1990.25    0.510   291.03
1991.25    0.513   291.62
1992.25    0.516   292.21
1993.25    0.520   292.78
1994.25    0.523   293.35
1995.25    0.526   293.92
1996.25    0.529   294.47
1997.25    0.532   295.02
1998.25    0.534   295.57
1999.25    0.537   296.11
2000.25    0.540   296.64
2001.25    0.543   297.17
2002.25    0.545   297.69
2003.25    0.548   298.21
2004.25    0.551   298.72
2005.25    0.553   299.23
2006.25    0.556   299.73
2007.25    0.558   300.23
2008.25    0.561   300.72
2009.25    0.563   301.22
2010.25    0.565   301.70
2011.25    0.568   302.18
2012.25    0.570   302.66
2013.25    0.572   303.14
2014.25    0.574   303.61
2015.25    0.576   304.07
2016.25    0.578   304.54
2017.25    0.581   305.00
2018.25    0.583   305.46
2019.25    0.584   305.91
2020.25    0.586   306.36
2021.25    0.588   306.81
2022.25    0.590   307.26
2023.25    0.592   307.70
2024.25    0.594   308.14
2025.25    0.596   308.58
2026.25    0.597   309.01
2027.25    0.599   309.45
2028.25    0.601   309.88
2029.25    0.602   310.30
2030.25    0.604   310.73
2031.25    0.605   311.15
2032.25    0.607   311.57
2033.25    0.608   311.99
2034.25    0.610   312.41
2035.25    0.611   312.83
2036.25    0.612   313.24
2037.25    0.614   313.65
2038.25    0.615   314.06
2039.25    0.616   314.47
2040.25    0.617   314.88
2041.25    0.618   315.28
2042.25    0.620   315.69
2043.25    0.621   316.09
2044.25    0.622   316.49
2045.25    0.623   316.89
2046.25    0.624   317.29
2047.25    0.625   317.68
2048.25    0.626   318.08
2049.25    0.627   318.47
2050.25    0.627   318.87
2051.25    0.628   319.26
2052.25    0.629   319.65
2053.25    0.630   320.04
2054.25    0.631   320.43
2055.25    0.631   320.82
2056.25    0.632   321.21
2057.25    0.633   321.59
2058.25    0.633   321.98
2059.25    0.634   322.37
2060.25    0.634   322.75
2061.25    0.635   323.14
2062.25    0.635   323.52
2063.25    0.636   323.90
2064.25    0.636   324.29
2065.25    0.636   324.67
2066.25    0.637   325.05
2067.25    0.637   325.43
2068.25    0.637   325.81
2069.25    0.637   326.19
2070.25    0.638   326.57
2071.25    0.638   326.95
2072.25    0.638   327.33
2073.25    0.638   327.71
2074.25    0.638   328.09
2075.25    0.638   328.47
2076.25    0.638   328.86
2077.25    0.638   329.24
2078.25    0.638   329.62
2079.25    0.638   330.00
2080.25    0.638   330.38
2081.25    0.637   330.76
2082.25    0.637   331.14
2083.25    0.637   331.52
2084.25    0.637   331.90
2085.25    0.636   332.28
2086.25    0.636   332.66
2087.25    0.636   333.05
2088.25    0.635   333.43
2089.25    0.635   333.81
2090.25    0.634   334.20
2091.25    0.634   334.58
2092.25    0.633   334.97
2093.25    0.632   335.36
2094.25    0.632   335.74
2095.25    0.631   336.13
2096.25    0.630   336.52
2097.25    0.629   336.91
2098.25    0.629   337.30
2099.25    0.628   337.69
2100.25    0.627   338.09
2101.25    0.626   338.48
2102.25    0.625   338.88
2103.25    0.624   339.27
2104.25    0.623   339.67
2105.25    0.622   340.07
2106.25    0.621   340.47
2107.25    0.620   340.88
2108.25    0.618   341.28
2109.25    0.617   341.68
2110.25    0.616   342.09
2111.25    0.614   342.50
2112.25    0.613   342.91
2113.25    0.612   343.32
2114.25    0.610   343.74
2115.25    0.609   344.16
2116.25    0.607   344.57
2117.25    0.606   344.99
2118.25    0.604   345.42
2119.25    0.602   345.84
2120.25    0.600   346.27
2121.25    0.599   346.70
2122.25    0.597   347.13
2123.25    0.595   347.57
2124.25    0.593   348.01
2125.25    0.591   348.45
2126.25    0.589   348.89
2127.25    0.587   349.34
2128.25    0.585   349.79
2129.25    0.583   350.25
2130.25    0.580   350.70
2131.25    0.578   351.16
2132.25    0.576   351.63
2133.25    0.573   352.10
2134.25    0.571   352.57
2135.25    0.569   353.05
2136.25    0.566   353.53
2137.25    0.563   354.01
2138.25    0.561   354.50
2139.25    0.558   355.00
2140.25    0.555   355.50
2141.25    0.552   356.00
2142.25    0.549   356.51
2143.25    0.547   357.03
2144.25    0.543   357.55
2145.25    0.540   358.07
2146.25    0.537   358.61
2147.25    0.534   359.15
2148.25    0.531   359.69
2149.25    0.527     0.25
2150.25    0.524     0.81
2151.25    0.520     1.37
2152.25    0.517     1.95
2153.25    0.513     2.53
2154.25    0.509     3.12
2155.25    0.505     3.73
2156.25    0.501     4.34
2157.25    0.497     4.96
2158.25    0.493     5.59
2159.25    0.489     6.23
2160.25    0.485     6.88
2161.25    0.481     7.54
2162.25    0.476     8.22
2163.25    0.471     8.91
2164.25    0.467     9.61

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 16:06:32