Double Star Calculator - Orbit

Orbital Elements for STT43
WDS: STT43 WDS ID/Discoverer
P: 289.200 Orbital period (years)
a: 0.886 Semi-major axis (arcseconds)
i: 124.2 Inclination (degrees)
Ω: 39.0 Longitude of ascending node (degrees)
T: 1804.422 Epoch of periastron passage (year)
e: 0.324 Eccentricity
ω: 203.8 Longitude of periastron (degrees)
Start-Year: 1880.4 Year
End-Year: 2169.6 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT43
Position: 024042.29+263720.5 Epoch-2000 right ascension and declination
WDS-ID: 02407+2637 WDS designation
Discoverer Code: STT43 Discover designation and components
ADS number: 2034 Aitken Double Star catalog
HD number: 16638 HD catalog number
Hipparcos number: 12491 Hipparcos catalog number
V1: 7.90 Magnitude of the primary
V2: 9.04 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1999 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Sca2001d Reference

Double Star Orbit for STT43



WDS 6th Orbit including measures of STT43

-- 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 STT43
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.537   319.33
--------------------------
1880.40    0.916    55.52
1881.40    0.925    54.91
1882.40    0.935    54.31
1883.40    0.944    53.72
1884.40    0.953    53.14
1885.40    0.962    52.58
1886.40    0.971    52.02
1887.40    0.979    51.47
1888.40    0.987    50.93
1889.40    0.995    50.41
1890.40    1.003    49.88
1891.40    1.010    49.37
1892.40    1.018    48.87
1893.40    1.025    48.37
1894.40    1.032    47.88
1895.40    1.039    47.39
1896.40    1.045    46.91
1897.40    1.051    46.44
1898.40    1.058    45.97
1899.40    1.063    45.51
1900.40    1.069    45.05
1901.40    1.075    44.60
1902.40    1.080    44.15
1903.40    1.085    43.71
1904.40    1.090    43.27
1905.40    1.094    42.84
1906.40    1.099    42.40
1907.40    1.103    41.98
1908.40    1.107    41.55
1909.40    1.111    41.13
1910.40    1.114    40.71
1911.40    1.118    40.29
1912.40    1.121    39.88
1913.40    1.124    39.46
1914.40    1.127    39.05
1915.40    1.129    38.64
1916.40    1.132    38.24
1917.40    1.134    37.83
1918.40    1.136    37.43
1919.40    1.138    37.03
1920.40    1.139    36.63
1921.40    1.141    36.23
1922.40    1.142    35.83
1923.40    1.143    35.43
1924.40    1.144    35.03
1925.40    1.144    34.64
1926.40    1.145    34.24
1927.40    1.145    33.84
1928.40    1.145    33.45
1929.40    1.145    33.05
1930.40    1.145    32.65
1931.40    1.144    32.26
1932.40    1.143    31.86
1933.40    1.143    31.46
1934.40    1.141    31.06
1935.40    1.140    30.66
1936.40    1.139    30.26
1937.40    1.137    29.86
1938.40    1.135    29.46
1939.40    1.133    29.06
1940.40    1.131    28.65
1941.40    1.129    28.24
1942.40    1.127    27.84
1943.40    1.124    27.43
1944.40    1.121    27.01
1945.40    1.118    26.60
1946.40    1.115    26.18
1947.40    1.112    25.76
1948.40    1.108    25.34
1949.40    1.104    24.92
1950.40    1.101    24.49
1951.40    1.097    24.06
1952.40    1.092    23.62
1953.40    1.088    23.19
1954.40    1.084    22.75
1955.40    1.079    22.30
1956.40    1.074    21.85
1957.40    1.069    21.40
1958.40    1.064    20.94
1959.40    1.059    20.48
1960.40    1.054    20.02
1961.40    1.048    19.55
1962.40    1.042    19.07
1963.40    1.037    18.59
1964.40    1.031    18.10
1965.40    1.025    17.61
1966.40    1.018    17.11
1967.40    1.012    16.61
1968.40    1.005    16.10
1969.40    0.999    15.58
1970.40    0.992    15.06
1971.40    0.985    14.53
1972.40    0.978    13.99
1973.40    0.971    13.44
1974.40    0.964    12.88
1975.40    0.956    12.32
1976.40    0.949    11.75
1977.40    0.941    11.17
1978.40    0.934    10.57
1979.40    0.926     9.97
1980.40    0.918     9.36
1981.40    0.910     8.74
1982.40    0.902     8.11
1983.40    0.893     7.46
1984.40    0.885     6.80
1985.40    0.877     6.13
1986.40    0.868     5.45
1987.40    0.860     4.75
1988.40    0.851     4.04
1989.40    0.842     3.32
1990.40    0.834     2.58
1991.40    0.825     1.82
1992.40    0.816     1.05
1993.40    0.807     0.26
1994.40    0.798   359.46
1995.40    0.789   358.63
1996.40    0.780   357.79
1997.40    0.771   356.92
1998.40    0.762   356.04
1999.40    0.753   355.13
2000.40    0.744   354.21
2001.40    0.735   353.25
2002.40    0.726   352.28
2003.40    0.717   351.28
2004.40    0.707   350.26
2005.40    0.698   349.20
2006.40    0.690   348.12
2007.40    0.681   347.02
2008.40    0.672   345.88
2009.40    0.663   344.71
2010.40    0.654   343.52
2011.40    0.646   342.29
2012.40    0.637   341.02
2013.40    0.629   339.73
2014.40    0.621   338.40
2015.40    0.613   337.03
2016.40    0.605   335.63
2017.40    0.597   334.19
2018.40    0.589   332.71
2019.40    0.582   331.19
2020.40    0.575   329.64
2021.40    0.568   328.05
2022.40    0.561   326.42
2023.40    0.555   324.75
2024.40    0.549   323.04
2025.40    0.543   321.29
2026.40    0.537   319.51
2027.40    0.532   317.70
2028.40    0.527   315.84
2029.40    0.523   313.96
2030.40    0.519   312.04
2031.40    0.515   310.09
2032.40    0.511   308.12
2033.40    0.508   306.12
2034.40    0.506   304.10
2035.40    0.503   302.05
2036.40    0.502   300.00
2037.40    0.500   297.93
2038.40    0.499   295.84
2039.40    0.499   293.76
2040.40    0.499   291.67
2041.40    0.499   289.58
2042.40    0.499   287.49
2043.40    0.501   285.41
2044.40    0.502   283.34
2045.40    0.504   281.29
2046.40    0.506   279.25
2047.40    0.508   277.23
2048.40    0.511   275.23
2049.40    0.514   273.25
2050.40    0.518   271.30
2051.40    0.521   269.37
2052.40    0.525   267.48
2053.40    0.529   265.61
2054.40    0.533   263.76
2055.40    0.538   261.95
2056.40    0.542   260.17
2057.40    0.547   258.42
2058.40    0.552   256.70
2059.40    0.556   255.00
2060.40    0.561   253.34
2061.40    0.566   251.70
2062.40    0.571   250.09
2063.40    0.575   248.51
2064.40    0.580   246.95
2065.40    0.584   245.42
2066.40    0.589   243.91
2067.40    0.593   242.42
2068.40    0.597   240.95
2069.40    0.600   239.50
2070.40    0.604   238.06
2071.40    0.607   236.65
2072.40    0.610   235.24
2073.40    0.612   233.85
2074.40    0.614   232.47
2075.40    0.616   231.09
2076.40    0.617   229.73
2077.40    0.618   228.36
2078.40    0.619   227.00
2079.40    0.619   225.65
2080.40    0.618   224.29
2081.40    0.617   222.93
2082.40    0.616   221.56
2083.40    0.614   220.18
2084.40    0.611   218.80
2085.40    0.608   217.40
2086.40    0.605   215.99
2087.40    0.601   214.56
2088.40    0.596   213.11
2089.40    0.591   211.63
2090.40    0.586   210.13
2091.40    0.580   208.60
2092.40    0.573   207.04
2093.40    0.566   205.44
2094.40    0.559   203.80
2095.40    0.551   202.11
2096.40    0.543   200.37
2097.40    0.535   198.58
2098.40    0.526   196.74
2099.40    0.517   194.83
2100.40    0.508   192.85
2101.40    0.499   190.80
2102.40    0.490   188.67
2103.40    0.481   186.47
2104.40    0.471   184.17
2105.40    0.462   181.79
2106.40    0.453   179.31
2107.40    0.445   176.73
2108.40    0.437   174.05
2109.40    0.429   171.28
2110.40    0.421   168.40
2111.40    0.415   165.42
2112.40    0.408   162.35
2113.40    0.403   159.20
2114.40    0.398   155.96
2115.40    0.394   152.65
2116.40    0.392   149.28
2117.40    0.390   145.87
2118.40    0.389   142.44
2119.40    0.388   138.99
2120.40    0.389   135.56
2121.40    0.391   132.15
2122.40    0.394   128.78
2123.40    0.398   125.47
2124.40    0.403   122.24
2125.40    0.409   119.08
2126.40    0.416   116.03
2127.40    0.423   113.07
2128.40    0.431   110.22
2129.40    0.440   107.48
2130.40    0.449   104.85
2131.40    0.459   102.33
2132.40    0.470    99.92
2133.40    0.481    97.62
2134.40    0.492    95.42
2135.40    0.504    93.32
2136.40    0.516    91.32
2137.40    0.528    89.41
2138.40    0.540    87.59
2139.40    0.553    85.85
2140.40    0.566    84.19
2141.40    0.579    82.60
2142.40    0.592    81.08
2143.40    0.605    79.63
2144.40    0.618    78.24
2145.40    0.631    76.91
2146.40    0.644    75.63
2147.40    0.657    74.40
2148.40    0.670    73.22
2149.40    0.683    72.08
2150.40    0.696    70.99
2151.40    0.709    69.93
2152.40    0.721    68.92
2153.40    0.734    67.94
2154.40    0.746    66.99
2155.40    0.759    66.07
2156.40    0.771    65.18
2157.40    0.783    64.32
2158.40    0.795    63.48
2159.40    0.806    62.67
2160.40    0.818    61.89
2161.40    0.829    61.12
2162.40    0.841    60.37
2163.40    0.852    59.65
2164.40    0.862    58.94
2165.40    0.873    58.25
2166.40    0.884    57.58
2167.40    0.894    56.92
2168.40    0.904    56.28
2169.40    0.914    55.65






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 15:02:47



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