Double Star Calculator - Orbit

Orbital Elements for SMN11AB
WDS: SMN11AB WDS ID/Discoverer
P: 310.000 Orbital period (years)
a: 0.261 Semi-major axis (arcseconds)
i: 67.7 Inclination (degrees)
Ω: 153.6 Longitude of ascending node (degrees)
T: 2007.400 Epoch of periastron passage (year)
e: 0.564 Eccentricity
ω: 112.2 Longitude of periastron (degrees)
Start-Year: 1870.0 Year
End-Year: 2180.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for SMN11AB
Position: 042929.71+261653.3 Epoch-2000 right ascension and declination
WDS-ID: 04295+2617 WDS designation
Discoverer Code: SMN11AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 17.2 Magnitude of the primary
V2: 17.2 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 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: Doc2018g Reference

Double Star Orbit for SMN11AB



WDS 6th Orbit including measures of SMN11AB

-- 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 SMN11AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.156   336.85
--------------------------
1870.00    0.238   119.36
1871.00    0.240   119.80
1872.00    0.241   120.23
1873.00    0.243   120.65
1874.00    0.244   121.07
1875.00    0.245   121.48
1876.00    0.247   121.89
1877.00    0.248   122.30
1878.00    0.250   122.70
1879.00    0.251   123.09
1880.00    0.252   123.48
1881.00    0.254   123.87
1882.00    0.255   124.25
1883.00    0.256   124.63
1884.00    0.258   125.01
1885.00    0.259   125.38
1886.00    0.260   125.75
1887.00    0.261   126.11
1888.00    0.262   126.48
1889.00    0.264   126.83
1890.00    0.265   127.19
1891.00    0.266   127.54
1892.00    0.267   127.89
1893.00    0.268   128.24
1894.00    0.269   128.58
1895.00    0.270   128.92
1896.00    0.271   129.26
1897.00    0.272   129.60
1898.00    0.273   129.93
1899.00    0.274   130.26
1900.00    0.275   130.59
1901.00    0.276   130.92
1902.00    0.277   131.24
1903.00    0.277   131.56
1904.00    0.278   131.88
1905.00    0.279   132.20
1906.00    0.280   132.52
1907.00    0.280   132.84
1908.00    0.281   133.15
1909.00    0.282   133.47
1910.00    0.282   133.78
1911.00    0.283   134.09
1912.00    0.283   134.40
1913.00    0.284   134.70
1914.00    0.284   135.01
1915.00    0.285   135.32
1916.00    0.285   135.62
1917.00    0.286   135.93
1918.00    0.286   136.23
1919.00    0.286   136.53
1920.00    0.286   136.84
1921.00    0.287   137.14
1922.00    0.287   137.44
1923.00    0.287   137.74
1924.00    0.287   138.04
1925.00    0.287   138.34
1926.00    0.287   138.65
1927.00    0.287   138.95
1928.00    0.287   139.25
1929.00    0.286   139.55
1930.00    0.286   139.85
1931.00    0.286   140.16
1932.00    0.286   140.46
1933.00    0.285   140.76
1934.00    0.285   141.07
1935.00    0.284   141.37
1936.00    0.284   141.68
1937.00    0.283   141.99
1938.00    0.283   142.30
1939.00    0.282   142.61
1940.00    0.281   142.92
1941.00    0.280   143.24
1942.00    0.279   143.55
1943.00    0.279   143.87
1944.00    0.278   144.19
1945.00    0.276   144.51
1946.00    0.275   144.84
1947.00    0.274   145.17
1948.00    0.273   145.50
1949.00    0.271   145.84
1950.00    0.270   146.17
1951.00    0.268   146.52
1952.00    0.267   146.86
1953.00    0.265   147.21
1954.00    0.263   147.57
1955.00    0.262   147.93
1956.00    0.260   148.29
1957.00    0.258   148.66
1958.00    0.255   149.04
1959.00    0.253   149.42
1960.00    0.251   149.81
1961.00    0.248   150.21
1962.00    0.246   150.62
1963.00    0.243   151.03
1964.00    0.241   151.45
1965.00    0.238   151.89
1966.00    0.235   152.33
1967.00    0.232   152.79
1968.00    0.229   153.25
1969.00    0.225   153.74
1970.00    0.222   154.23
1971.00    0.218   154.74
1972.00    0.215   155.27
1973.00    0.211   155.82
1974.00    0.207   156.39
1975.00    0.203   156.98
1976.00    0.198   157.60
1977.00    0.194   158.25
1978.00    0.189   158.92
1979.00    0.184   159.63
1980.00    0.180   160.38
1981.00    0.174   161.17
1982.00    0.169   162.01
1983.00    0.164   162.91
1984.00    0.158   163.87
1985.00    0.152   164.90
1986.00    0.146   166.01
1987.00    0.140   167.22
1988.00    0.134   168.54
1989.00    0.127   169.99
1990.00    0.121   171.61
1991.00    0.114   173.41
1992.00    0.107   175.45
1993.00    0.100   177.77
1994.00    0.093   180.44
1995.00    0.086   183.56
1996.00    0.079   187.25
1997.00    0.072   191.66
1998.00    0.065   197.00
1999.00    0.059   203.51
2000.00    0.053   211.47
2001.00    0.049   221.08
2002.00    0.046   232.29
2003.00    0.044   244.63
2004.00    0.045   257.16
2005.00    0.047   268.87
2006.00    0.051   279.11
2007.00    0.056   287.69
2008.00    0.062   294.75
2009.00    0.069   300.55
2010.00    0.075   305.35
2011.00    0.082   309.38
2012.00    0.089   312.80
2013.00    0.095   315.74
2014.00    0.101   318.32
2015.00    0.107   320.60
2016.00    0.113   322.64
2017.00    0.119   324.48
2018.00    0.124   326.17
2019.00    0.129   327.73
2020.00    0.133   329.17
2021.00    0.137   330.53
2022.00    0.141   331.80
2023.00    0.145   333.01
2024.00    0.148   334.16
2025.00    0.151   335.27
2026.00    0.154   336.33
2027.00    0.157   337.35
2028.00    0.159   338.35
2029.00    0.161   339.31
2030.00    0.163   340.26
2031.00    0.165   341.18
2032.00    0.166   342.08
2033.00    0.168   342.97
2034.00    0.169   343.85
2035.00    0.170   344.72
2036.00    0.171   345.57
2037.00    0.171   346.42
2038.00    0.172   347.26
2039.00    0.172   348.10
2040.00    0.173   348.93
2041.00    0.173   349.77
2042.00    0.173   350.60
2043.00    0.173   351.43
2044.00    0.173   352.25
2045.00    0.173   353.09
2046.00    0.172   353.92
2047.00    0.172   354.75
2048.00    0.172   355.59
2049.00    0.171   356.43
2050.00    0.171   357.28
2051.00    0.170   358.13
2052.00    0.170   358.99
2053.00    0.169   359.86
2054.00    0.168     0.73
2055.00    0.168     1.61
2056.00    0.167     2.50
2057.00    0.166     3.39
2058.00    0.165     4.29
2059.00    0.164     5.21
2060.00    0.163     6.13
2061.00    0.163     7.06
2062.00    0.162     8.00
2063.00    0.161     8.96
2064.00    0.160     9.92
2065.00    0.159    10.90
2066.00    0.158    11.88
2067.00    0.157    12.88
2068.00    0.156    13.89
2069.00    0.155    14.92
2070.00    0.154    15.95
2071.00    0.153    17.00
2072.00    0.152    18.06
2073.00    0.152    19.13
2074.00    0.151    20.22
2075.00    0.150    21.31
2076.00    0.149    22.42
2077.00    0.148    23.55
2078.00    0.147    24.68
2079.00    0.147    25.83
2080.00    0.146    26.99
2081.00    0.145    28.16
2082.00    0.144    29.34
2083.00    0.144    30.54
2084.00    0.143    31.74
2085.00    0.143    32.96
2086.00    0.142    34.18
2087.00    0.141    35.42
2088.00    0.141    36.66
2089.00    0.141    37.91
2090.00    0.140    39.17
2091.00    0.140    40.43
2092.00    0.139    41.70
2093.00    0.139    42.98
2094.00    0.139    44.26
2095.00    0.139    45.55
2096.00    0.139    46.84
2097.00    0.139    48.13
2098.00    0.139    49.42
2099.00    0.139    50.71
2100.00    0.139    52.00
2101.00    0.139    53.29
2102.00    0.139    54.58
2103.00    0.139    55.86
2104.00    0.139    57.14
2105.00    0.140    58.42
2106.00    0.140    59.68
2107.00    0.140    60.95
2108.00    0.141    62.20
2109.00    0.141    63.45
2110.00    0.142    64.68
2111.00    0.142    65.91
2112.00    0.143    67.13
2113.00    0.144    68.34
2114.00    0.144    69.53
2115.00    0.145    70.71
2116.00    0.146    71.88
2117.00    0.147    73.04
2118.00    0.148    74.18
2119.00    0.149    75.31
2120.00    0.150    76.43
2121.00    0.151    77.53
2122.00    0.152    78.62
2123.00    0.153    79.69
2124.00    0.154    80.74
2125.00    0.155    81.78
2126.00    0.156    82.81
2127.00    0.157    83.82
2128.00    0.158    84.82
2129.00    0.160    85.80
2130.00    0.161    86.76
2131.00    0.162    87.71
2132.00    0.164    88.64
2133.00    0.165    89.56
2134.00    0.166    90.46
2135.00    0.168    91.35
2136.00    0.169    92.23
2137.00    0.171    93.09
2138.00    0.172    93.93
2139.00    0.173    94.76
2140.00    0.175    95.58
2141.00    0.176    96.38
2142.00    0.178    97.17
2143.00    0.180    97.95
2144.00    0.181    98.71
2145.00    0.183    99.46
2146.00    0.184   100.19
2147.00    0.186   100.92
2148.00    0.187   101.63
2149.00    0.189   102.33
2150.00    0.191   103.02
2151.00    0.192   103.70
2152.00    0.194   104.36
2153.00    0.195   105.02
2154.00    0.197   105.66
2155.00    0.199   106.30
2156.00    0.200   106.92
2157.00    0.202   107.53
2158.00    0.203   108.14
2159.00    0.205   108.73
2160.00    0.207   109.32
2161.00    0.208   109.89
2162.00    0.210   110.46
2163.00    0.212   111.02
2164.00    0.213   111.57
2165.00    0.215   112.11
2166.00    0.216   112.64
2167.00    0.218   113.17
2168.00    0.220   113.68
2169.00    0.221   114.19
2170.00    0.223   114.70
2171.00    0.224   115.19
2172.00    0.226   115.68
2173.00    0.228   116.16
2174.00    0.229   116.64
2175.00    0.231   117.11
2176.00    0.232   117.57
2177.00    0.234   118.03
2178.00    0.235   118.48
2179.00    0.237   118.92






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 15:24:58



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