Double Star Calculator - Orbit

Orbital Elements for I1243AB
WDS: I1243AB WDS ID/Discoverer
P: 401.600 Orbital period (years)
a: 0.434 Semi-major axis (arcseconds)
i: 139.9 Inclination (degrees)
Ω: 291.2 Longitude of ascending node (degrees)
T: 1998.810 Epoch of periastron passage (year)
e: 0.41 Eccentricity
ω: 7.5 Longitude of periastron (degrees)
Start-Year: 1824.2 Year
End-Year: 2225.8 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I1243AB
Position: 142741.84-411249.4 Epoch-2000 right ascension and declination
WDS-ID: 14277-4113 WDS designation
Discoverer Code: I1243AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 126622 HD catalog number
Hipparcos number: 70707 Hipparcos catalog number
V1: 9.6 Magnitude of the primary
V2: 9.7 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: USN2017e Reference

Double Star Orbit for I1243AB



WDS 6th Orbit including measures of I1243AB

-- 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 I1243AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.240   231.31
--------------------------
1824.20    0.592    96.96
1825.20    0.591    96.62
1826.20    0.590    96.28
1827.20    0.588    95.94
1828.20    0.587    95.60
1829.20    0.586    95.26
1830.20    0.584    94.91
1831.20    0.583    94.57
1832.20    0.582    94.22
1833.20    0.580    93.87
1834.20    0.579    93.52
1835.20    0.577    93.17
1836.20    0.576    92.81
1837.20    0.574    92.46
1838.20    0.573    92.10
1839.20    0.571    91.74
1840.20    0.570    91.38
1841.20    0.568    91.01
1842.20    0.566    90.65
1843.20    0.565    90.28
1844.20    0.563    89.91
1845.20    0.561    89.54
1846.20    0.559    89.16
1847.20    0.557    88.78
1848.20    0.555    88.40
1849.20    0.553    88.02
1850.20    0.552    87.63
1851.20    0.550    87.24
1852.20    0.548    86.85
1853.20    0.546    86.46
1854.20    0.543    86.06
1855.20    0.541    85.66
1856.20    0.539    85.26
1857.20    0.537    84.85
1858.20    0.535    84.44
1859.20    0.533    84.03
1860.20    0.530    83.61
1861.20    0.528    83.19
1862.20    0.526    82.76
1863.20    0.523    82.34
1864.20    0.521    81.91
1865.20    0.519    81.47
1866.20    0.516    81.03
1867.20    0.514    80.59
1868.20    0.511    80.14
1869.20    0.509    79.68
1870.20    0.506    79.23
1871.20    0.504    78.77
1872.20    0.501    78.30
1873.20    0.499    77.83
1874.20    0.496    77.35
1875.20    0.493    76.87
1876.20    0.491    76.38
1877.20    0.488    75.89
1878.20    0.485    75.39
1879.20    0.482    74.89
1880.20    0.480    74.38
1881.20    0.477    73.87
1882.20    0.474    73.34
1883.20    0.471    72.82
1884.20    0.468    72.28
1885.20    0.465    71.74
1886.20    0.462    71.19
1887.20    0.459    70.64
1888.20    0.457    70.08
1889.20    0.454    69.51
1890.20    0.451    68.93
1891.20    0.448    68.35
1892.20    0.444    67.76
1893.20    0.441    67.16
1894.20    0.438    66.55
1895.20    0.435    65.93
1896.20    0.432    65.30
1897.20    0.429    64.67
1898.20    0.426    64.02
1899.20    0.423    63.37
1900.20    0.420    62.71
1901.20    0.416    62.03
1902.20    0.413    61.35
1903.20    0.410    60.65
1904.20    0.407    59.95
1905.20    0.404    59.23
1906.20    0.400    58.50
1907.20    0.397    57.76
1908.20    0.394    57.01
1909.20    0.391    56.24
1910.20    0.388    55.46
1911.20    0.384    54.67
1912.20    0.381    53.87
1913.20    0.378    53.05
1914.20    0.375    52.22
1915.20    0.371    51.37
1916.20    0.368    50.51
1917.20    0.365    49.63
1918.20    0.362    48.74
1919.20    0.359    47.83
1920.20    0.355    46.91
1921.20    0.352    45.97
1922.20    0.349    45.01
1923.20    0.346    44.03
1924.20    0.343    43.04
1925.20    0.340    42.03
1926.20    0.337    41.00
1927.20    0.334    39.95
1928.20    0.331    38.88
1929.20    0.328    37.80
1930.20    0.325    36.69
1931.20    0.322    35.56
1932.20    0.319    34.41
1933.20    0.316    33.24
1934.20    0.313    32.06
1935.20    0.311    30.84
1936.20    0.308    29.61
1937.20    0.305    28.36
1938.20    0.303    27.08
1939.20    0.300    25.78
1940.20    0.298    24.47
1941.20    0.295    23.12
1942.20    0.293    21.76
1943.20    0.290    20.37
1944.20    0.288    18.97
1945.20    0.286    17.54
1946.20    0.284    16.09
1947.20    0.282    14.61
1948.20    0.280    13.12
1949.20    0.278    11.61
1950.20    0.276    10.07
1951.20    0.275     8.52
1952.20    0.273     6.95
1953.20    0.271     5.36
1954.20    0.270     3.75
1955.20    0.268     2.12
1956.20    0.267     0.48
1957.20    0.266   358.82
1958.20    0.265   357.15
1959.20    0.264   355.46
1960.20    0.263   353.76
1961.20    0.262   352.05
1962.20    0.261   350.33
1963.20    0.260   348.60
1964.20    0.260   346.86
1965.20    0.259   345.11
1966.20    0.259   343.36
1967.20    0.258   341.59
1968.20    0.258   339.83
1969.20    0.258   338.06
1970.20    0.258   336.28
1971.20    0.257   334.51
1972.20    0.257   332.73
1973.20    0.257   330.95
1974.20    0.257   329.17
1975.20    0.257   327.39
1976.20    0.257   325.61
1977.20    0.257   323.83
1978.20    0.257   322.05
1979.20    0.258   320.27
1980.20    0.258   318.50
1981.20    0.258   316.72
1982.20    0.258   314.95
1983.20    0.258   313.18
1984.20    0.258   311.41
1985.20    0.258   309.65
1986.20    0.258   307.88
1987.20    0.258   306.11
1988.20    0.258   304.35
1989.20    0.258   302.58
1990.20    0.258   300.81
1991.20    0.258   299.04
1992.20    0.258   297.27
1993.20    0.258   295.50
1994.20    0.257   293.72
1995.20    0.257   291.94
1996.20    0.256   290.15
1997.20    0.256   288.35
1998.20    0.255   286.55
1999.20    0.255   284.74
2000.20    0.254   282.93
2001.20    0.254   281.10
2002.20    0.253   279.26
2003.20    0.252   277.42
2004.20    0.251   275.56
2005.20    0.251   273.69
2006.20    0.250   271.81
2007.20    0.249   269.92
2008.20    0.248   268.01
2009.20    0.247   266.09
2010.20    0.247   264.16
2011.20    0.246   262.22
2012.20    0.245   260.26
2013.20    0.244   258.29
2014.20    0.243   256.31
2015.20    0.243   254.31
2016.20    0.242   252.31
2017.20    0.242   250.29
2018.20    0.241   248.27
2019.20    0.241   246.24
2020.20    0.240   244.20
2021.20    0.240   242.15
2022.20    0.240   240.11
2023.20    0.240   238.06
2024.20    0.240   236.01
2025.20    0.240   233.96
2026.20    0.240   231.92
2027.20    0.241   229.89
2028.20    0.241   227.86
2029.20    0.242   225.84
2030.20    0.243   223.83
2031.20    0.244   221.84
2032.20    0.245   219.86
2033.20    0.246   217.91
2034.20    0.247   215.97
2035.20    0.249   214.05
2036.20    0.250   212.15
2037.20    0.252   210.28
2038.20    0.254   208.44
2039.20    0.256   206.62
2040.20    0.258   204.83
2041.20    0.260   203.07
2042.20    0.262   201.34
2043.20    0.264   199.64
2044.20    0.267   197.97
2045.20    0.269   196.33
2046.20    0.272   194.72
2047.20    0.275   193.14
2048.20    0.278   191.60
2049.20    0.280   190.08
2050.20    0.283   188.60
2051.20    0.286   187.15
2052.20    0.290   185.73
2053.20    0.293   184.34
2054.20    0.296   182.98
2055.20    0.299   181.65
2056.20    0.303   180.35
2057.20    0.306   179.08
2058.20    0.309   177.83
2059.20    0.313   176.61
2060.20    0.316   175.42
2061.20    0.320   174.26
2062.20    0.323   173.12
2063.20    0.327   172.01
2064.20    0.331   170.92
2065.20    0.334   169.85
2066.20    0.338   168.81
2067.20    0.342   167.79
2068.20    0.345   166.79
2069.20    0.349   165.81
2070.20    0.353   164.86
2071.20    0.356   163.92
2072.20    0.360   163.00
2073.20    0.364   162.10
2074.20    0.367   161.22
2075.20    0.371   160.36
2076.20    0.375   159.51
2077.20    0.379   158.68
2078.20    0.382   157.87
2079.20    0.386   157.07
2080.20    0.390   156.28
2081.20    0.393   155.51
2082.20    0.397   154.76
2083.20    0.400   154.02
2084.20    0.404   153.29
2085.20    0.408   152.58
2086.20    0.411   151.87
2087.20    0.415   151.18
2088.20    0.418   150.50
2089.20    0.422   149.84
2090.20    0.425   149.18
2091.20    0.429   148.53
2092.20    0.432   147.90
2093.20    0.436   147.27
2094.20    0.439   146.66
2095.20    0.442   146.05
2096.20    0.446   145.45
2097.20    0.449   144.86
2098.20    0.452   144.28
2099.20    0.456   143.71
2100.20    0.459   143.15
2101.20    0.462   142.59
2102.20    0.465   142.04
2103.20    0.468   141.50
2104.20    0.471   140.97
2105.20    0.475   140.44
2106.20    0.478   139.92
2107.20    0.481   139.41
2108.20    0.484   138.90
2109.20    0.487   138.40
2110.20    0.490   137.91
2111.20    0.492   137.42
2112.20    0.495   136.94
2113.20    0.498   136.46
2114.20    0.501   135.99
2115.20    0.504   135.52
2116.20    0.506   135.06
2117.20    0.509   134.60
2118.20    0.512   134.15
2119.20    0.514   133.70
2120.20    0.517   133.26
2121.20    0.520   132.82
2122.20    0.522   132.39
2123.20    0.525   131.96
2124.20    0.527   131.53
2125.20    0.529   131.11
2126.20    0.532   130.69
2127.20    0.534   130.28
2128.20    0.537   129.86
2129.20    0.539   129.46
2130.20    0.541   129.05
2131.20    0.543   128.65
2132.20    0.545   128.25
2133.20    0.548   127.86
2134.20    0.550   127.47
2135.20    0.552   127.08
2136.20    0.554   126.69
2137.20    0.556   126.31
2138.20    0.558   125.93
2139.20    0.560   125.55
2140.20    0.562   125.18
2141.20    0.563   124.81
2142.20    0.565   124.44
2143.20    0.567   124.07
2144.20    0.569   123.70
2145.20    0.570   123.34
2146.20    0.572   122.98
2147.20    0.574   122.62
2148.20    0.575   122.26
2149.20    0.577   121.91
2150.20    0.579   121.56
2151.20    0.580   121.21
2152.20    0.581   120.86
2153.20    0.583   120.51
2154.20    0.584   120.16
2155.20    0.586   119.82
2156.20    0.587   119.48
2157.20    0.588   119.14
2158.20    0.589   118.80
2159.20    0.591   118.46
2160.20    0.592   118.12
2161.20    0.593   117.78
2162.20    0.594   117.45
2163.20    0.595   117.12
2164.20    0.596   116.78
2165.20    0.597   116.45
2166.20    0.598   116.12
2167.20    0.599   115.80
2168.20    0.600   115.47
2169.20    0.601   115.14
2170.20    0.602   114.82
2171.20    0.602   114.49
2172.20    0.603   114.17
2173.20    0.604   113.84
2174.20    0.605   113.52
2175.20    0.605   113.20
2176.20    0.606   112.88
2177.20    0.606   112.56
2178.20    0.607   112.24
2179.20    0.607   111.92
2180.20    0.608   111.60
2181.20    0.608   111.28
2182.20    0.609   110.96
2183.20    0.609   110.64
2184.20    0.609   110.32
2185.20    0.610   110.01
2186.20    0.610   109.69
2187.20    0.610   109.37
2188.20    0.610   109.06
2189.20    0.610   108.74
2190.20    0.610   108.42
2191.20    0.611   108.11
2192.20    0.611   107.79
2193.20    0.611   107.48
2194.20    0.611   107.16
2195.20    0.610   106.84
2196.20    0.610   106.53
2197.20    0.610   106.21
2198.20    0.610   105.90
2199.20    0.610   105.58
2200.20    0.610   105.26
2201.20    0.609   104.95
2202.20    0.609   104.63
2203.20    0.609   104.31
2204.20    0.608   103.99
2205.20    0.608   103.67
2206.20    0.607   103.35
2207.20    0.607   103.04
2208.20    0.606   102.72
2209.20    0.606   102.39
2210.20    0.605   102.07
2211.20    0.605   101.75
2212.20    0.604   101.43
2213.20    0.603   101.11
2214.20    0.603   100.78
2215.20    0.602   100.46
2216.20    0.601   100.13
2217.20    0.600    99.81
2218.20    0.599    99.48
2219.20    0.599    99.15
2220.20    0.598    98.82
2221.20    0.597    98.49
2222.20    0.596    98.16
2223.20    0.595    97.83
2224.20    0.594    97.49
2225.20    0.593    97.16






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 17:05:55



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