Double Star Calculator - Orbit

Orbital Elements for STF535
WDS: STF535 WDS ID/Discoverer
P: 532.223 Orbital period (years)
a: 1.50659 Semi-major axis (arcseconds)
i: 129.787 Inclination (degrees)
Ω: 10.136 Longitude of ascending node (degrees)
T: 2157.594 Epoch of periastron passage (year)
e: 0.37164 Eccentricity
ω: 230.207 Longitude of periastron (degrees)
Start-Year: 1758.8887 Year
End-Year: 2291.1113 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF535
Position: 042316.84+112240.5 Epoch-2000 right ascension and declination
WDS-ID: 04233+1123 WDS designation
Discoverer Code: STF535 Discover designation and components
ADS number: 3174 Aitken Double Star catalog
HD number: 27762 HD catalog number
Hipparcos number: 20472 Hipparcos catalog number
V1: 6.95 Magnitude of the primary
V2: 8.29 Magnitude of the secondary
Equinox: Equinox
Date: 2013 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: Izm2019 Reference

Double Star Orbit for STF535



WDS 6th Orbit including measures of STF535

-- 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 STF535
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.112   261.92
--------------------------
1758.89    1.701    10.31
1759.89    1.706    10.00
1760.89    1.712     9.68
1761.89    1.717     9.37
1762.89    1.722     9.07
1763.89    1.727     8.76
1764.89    1.732     8.45
1765.89    1.737     8.15
1766.89    1.741     7.85
1767.89    1.746     7.55
1768.89    1.750     7.25
1769.89    1.755     6.95
1770.89    1.759     6.66
1771.89    1.763     6.36
1772.89    1.767     6.07
1773.89    1.771     5.78
1774.89    1.775     5.49
1775.89    1.779     5.20
1776.89    1.783     4.91
1777.89    1.786     4.63
1778.89    1.789     4.34
1779.89    1.793     4.06
1780.89    1.796     3.77
1781.89    1.799     3.49
1782.89    1.802     3.21
1783.89    1.805     2.93
1784.89    1.808     2.65
1785.89    1.811     2.37
1786.89    1.813     2.09
1787.89    1.816     1.82
1788.89    1.818     1.54
1789.89    1.821     1.27
1790.89    1.823     0.99
1791.89    1.825     0.72
1792.89    1.827     0.44
1793.89    1.829     0.17
1794.89    1.831   359.90
1795.89    1.833   359.63
1796.89    1.835   359.35
1797.89    1.836   359.08
1798.89    1.838   358.81
1799.89    1.839   358.54
1800.89    1.841   358.27
1801.89    1.842   358.00
1802.89    1.843   357.74
1803.89    1.844   357.47
1804.89    1.845   357.20
1805.89    1.846   356.93
1806.89    1.847   356.66
1807.89    1.848   356.40
1808.89    1.848   356.13
1809.89    1.849   355.86
1810.89    1.849   355.60
1811.89    1.850   355.33
1812.89    1.850   355.06
1813.89    1.850   354.80
1814.89    1.850   354.53
1815.89    1.850   354.26
1816.89    1.850   354.00
1817.89    1.850   353.73
1818.89    1.850   353.46
1819.89    1.850   353.20
1820.89    1.850   352.93
1821.89    1.849   352.66
1822.89    1.849   352.40
1823.89    1.848   352.13
1824.89    1.848   351.86
1825.89    1.847   351.60
1826.89    1.846   351.33
1827.89    1.845   351.06
1828.89    1.845   350.79
1829.89    1.844   350.53
1830.89    1.843   350.26
1831.89    1.841   349.99
1832.89    1.840   349.72
1833.89    1.839   349.45
1834.89    1.838   349.18
1835.89    1.836   348.91
1836.89    1.835   348.64
1837.89    1.833   348.37
1838.89    1.832   348.10
1839.89    1.830   347.82
1840.89    1.828   347.55
1841.89    1.826   347.28
1842.89    1.825   347.00
1843.89    1.823   346.73
1844.89    1.821   346.45
1845.89    1.819   346.18
1846.89    1.817   345.90
1847.89    1.814   345.63
1848.89    1.812   345.35
1849.89    1.810   345.07
1850.89    1.808   344.79
1851.89    1.805   344.51
1852.89    1.803   344.23
1853.89    1.800   343.95
1854.89    1.797   343.67
1855.89    1.795   343.39
1856.89    1.792   343.10
1857.89    1.789   342.82
1858.89    1.787   342.53
1859.89    1.784   342.25
1860.89    1.781   341.96
1861.89    1.778   341.67
1862.89    1.775   341.38
1863.89    1.772   341.09
1864.89    1.769   340.80
1865.89    1.765   340.51
1866.89    1.762   340.22
1867.89    1.759   339.92
1868.89    1.755   339.63
1869.89    1.752   339.33
1870.89    1.749   339.03
1871.89    1.745   338.73
1872.89    1.742   338.43
1873.89    1.738   338.13
1874.89    1.734   337.83
1875.89    1.731   337.53
1876.89    1.727   337.22
1877.89    1.723   336.91
1878.89    1.719   336.61
1879.89    1.716   336.30
1880.89    1.712   335.99
1881.89    1.708   335.67
1882.89    1.704   335.36
1883.89    1.700   335.05
1884.89    1.696   334.73
1885.89    1.692   334.41
1886.89    1.687   334.09
1887.89    1.683   333.77
1888.89    1.679   333.45
1889.89    1.675   333.12
1890.89    1.670   332.80
1891.89    1.666   332.47
1892.89    1.662   332.14
1893.89    1.657   331.81
1894.89    1.653   331.48
1895.89    1.648   331.14
1896.89    1.644   330.80
1897.89    1.639   330.47
1898.89    1.635   330.13
1899.89    1.630   329.78
1900.89    1.626   329.44
1901.89    1.621   329.09
1902.89    1.616   328.74
1903.89    1.612   328.39
1904.89    1.607   328.04
1905.89    1.602   327.69
1906.89    1.597   327.33
1907.89    1.593   326.97
1908.89    1.588   326.61
1909.89    1.583   326.25
1910.89    1.578   325.88
1911.89    1.573   325.52
1912.89    1.568   325.15
1913.89    1.563   324.77
1914.89    1.558   324.40
1915.89    1.553   324.02
1916.89    1.548   323.64
1917.89    1.543   323.26
1918.89    1.538   322.88
1919.89    1.533   322.49
1920.89    1.528   322.10
1921.89    1.523   321.71
1922.89    1.518   321.32
1923.89    1.513   320.92
1924.89    1.508   320.52
1925.89    1.503   320.12
1926.89    1.497   319.71
1927.89    1.492   319.30
1928.89    1.487   318.89
1929.89    1.482   318.48
1930.89    1.477   318.06
1931.89    1.472   317.64
1932.89    1.467   317.22
1933.89    1.461   316.79
1934.89    1.456   316.36
1935.89    1.451   315.93
1936.89    1.446   315.50
1937.89    1.441   315.06
1938.89    1.436   314.62
1939.89    1.430   314.17
1940.89    1.425   313.73
1941.89    1.420   313.28
1942.89    1.415   312.82
1943.89    1.410   312.37
1944.89    1.405   311.90
1945.89    1.399   311.44
1946.89    1.394   310.97
1947.89    1.389   310.50
1948.89    1.384   310.03
1949.89    1.379   309.55
1950.89    1.374   309.07
1951.89    1.369   308.58
1952.89    1.364   308.09
1953.89    1.359   307.60
1954.89    1.354   307.11
1955.89    1.349   306.61
1956.89    1.344   306.10
1957.89    1.339   305.60
1958.89    1.334   305.09
1959.89    1.329   304.57
1960.89    1.324   304.05
1961.89    1.319   303.53
1962.89    1.315   303.01
1963.89    1.310   302.48
1964.89    1.305   301.94
1965.89    1.300   301.41
1966.89    1.296   300.86
1967.89    1.291   300.32
1968.89    1.286   299.77
1969.89    1.282   299.22
1970.89    1.277   298.66
1971.89    1.273   298.10
1972.89    1.268   297.53
1973.89    1.264   296.96
1974.89    1.259   296.39
1975.89    1.255   295.81
1976.89    1.251   295.23
1977.89    1.246   294.65
1978.89    1.242   294.06
1979.89    1.238   293.46
1980.89    1.234   292.87
1981.89    1.230   292.27
1982.89    1.226   291.66
1983.89    1.222   291.05
1984.89    1.218   290.44
1985.89    1.214   289.82
1986.89    1.210   289.20
1987.89    1.206   288.58
1988.89    1.203   287.95
1989.89    1.199   287.31
1990.89    1.195   286.68
1991.89    1.192   286.04
1992.89    1.188   285.39
1993.89    1.185   284.75
1994.89    1.182   284.09
1995.89    1.178   283.44
1996.89    1.175   282.78
1997.89    1.172   282.12
1998.89    1.169   281.45
1999.89    1.166   280.78
2000.89    1.163   280.11
2001.89    1.160   279.44
2002.89    1.157   278.76
2003.89    1.155   278.07
2004.89    1.152   277.39
2005.89    1.149   276.70
2006.89    1.147   276.01
2007.89    1.144   275.31
2008.89    1.142   274.61
2009.89    1.140   273.91
2010.89    1.137   273.21
2011.89    1.135   272.50
2012.89    1.133   271.79
2013.89    1.131   271.08
2014.89    1.129   270.37
2015.89    1.127   269.65
2016.89    1.126   268.93
2017.89    1.124   268.21
2018.89    1.122   267.49
2019.89    1.121   266.76
2020.89    1.119   266.03
2021.89    1.118   265.31
2022.89    1.116   264.57
2023.89    1.115   263.84
2024.89    1.114   263.11
2025.89    1.113   262.37
2026.89    1.112   261.64
2027.89    1.111   260.90
2028.89    1.110   260.16
2029.89    1.109   259.42
2030.89    1.109   258.67
2031.89    1.108   257.93
2032.89    1.107   257.19
2033.89    1.107   256.44
2034.89    1.106   255.70
2035.89    1.106   254.95
2036.89    1.106   254.21
2037.89    1.105   253.46
2038.89    1.105   252.71
2039.89    1.105   251.97
2040.89    1.105   251.22
2041.89    1.105   250.47
2042.89    1.105   249.73
2043.89    1.105   248.98
2044.89    1.105   248.23
2045.89    1.105   247.49
2046.89    1.106   246.74
2047.89    1.106   245.99
2048.89    1.106   245.25
2049.89    1.107   244.50
2050.89    1.107   243.76
2051.89    1.108   243.02
2052.89    1.108   242.27
2053.89    1.109   241.53
2054.89    1.109   240.79
2055.89    1.110   240.05
2056.89    1.111   239.31
2057.89    1.111   238.57
2058.89    1.112   237.83
2059.89    1.113   237.09
2060.89    1.114   236.36
2061.89    1.115   235.62
2062.89    1.115   234.89
2063.89    1.116   234.16
2064.89    1.117   233.43
2065.89    1.118   232.70
2066.89    1.119   231.97
2067.89    1.119   231.24
2068.89    1.120   230.51
2069.89    1.121   229.78
2070.89    1.122   229.06
2071.89    1.123   228.33
2072.89    1.124   227.61
2073.89    1.124   226.89
2074.89    1.125   226.17
2075.89    1.126   225.45
2076.89    1.126   224.73
2077.89    1.127   224.01
2078.89    1.128   223.29
2079.89    1.128   222.58
2080.89    1.129   221.86
2081.89    1.129   221.14
2082.89    1.130   220.43
2083.89    1.130   219.72
2084.89    1.130   219.00
2085.89    1.131   218.29
2086.89    1.131   217.57
2087.89    1.131   216.86
2088.89    1.131   216.15
2089.89    1.131   215.43
2090.89    1.131   214.72
2091.89    1.130   214.01
2092.89    1.130   213.29
2093.89    1.130   212.58
2094.89    1.129   211.86
2095.89    1.128   211.15
2096.89    1.128   210.43
2097.89    1.127   209.71
2098.89    1.126   208.99
2099.89    1.125   208.27
2100.89    1.123   207.55
2101.89    1.122   206.83
2102.89    1.120   206.10
2103.89    1.119   205.37
2104.89    1.117   204.64
2105.89    1.115   203.91
2106.89    1.113   203.17
2107.89    1.110   202.44
2108.89    1.108   201.69
2109.89    1.105   200.95
2110.89    1.102   200.20
2111.89    1.099   199.45
2112.89    1.096   198.69
2113.89    1.093   197.93
2114.89    1.089   197.16
2115.89    1.085   196.39
2116.89    1.081   195.61
2117.89    1.077   194.83
2118.89    1.073   194.04
2119.89    1.068   193.25
2120.89    1.064   192.44
2121.89    1.059   191.63
2122.89    1.053   190.82
2123.89    1.048   189.99
2124.89    1.042   189.15
2125.89    1.037   188.31
2126.89    1.031   187.46
2127.89    1.024   186.59
2128.89    1.018   185.72
2129.89    1.011   184.83
2130.89    1.004   183.93
2131.89    0.997   183.02
2132.89    0.990   182.10
2133.89    0.982   181.16
2134.89    0.975   180.21
2135.89    0.967   179.24
2136.89    0.958   178.25
2137.89    0.950   177.25
2138.89    0.942   176.23
2139.89    0.933   175.20
2140.89    0.924   174.14
2141.89    0.915   173.06
2142.89    0.906   171.96
2143.89    0.897   170.84
2144.89    0.887   169.69
2145.89    0.878   168.52
2146.89    0.868   167.32
2147.89    0.859   166.10
2148.89    0.849   164.85
2149.89    0.839   163.57
2150.89    0.829   162.26
2151.89    0.819   160.92
2152.89    0.810   159.54
2153.89    0.800   158.13
2154.89    0.790   156.69
2155.89    0.780   155.21
2156.89    0.771   153.69
2157.89    0.761   152.14
2158.89    0.752   150.55
2159.89    0.743   148.91
2160.89    0.734   147.24
2161.89    0.725   145.52
2162.89    0.717   143.77
2163.89    0.708   141.97
2164.89    0.701   140.13
2165.89    0.693   138.26
2166.89    0.686   136.34
2167.89    0.679   134.38
2168.89    0.673   132.38
2169.89    0.667   130.35
2170.89    0.662   128.29
2171.89    0.657   126.19
2172.89    0.653   124.06
2173.89    0.649   121.91
2174.89    0.646   119.73
2175.89    0.644   117.54
2176.89    0.642   115.33
2177.89    0.640   113.11
2178.89    0.640   110.88
2179.89    0.640   108.65
2180.89    0.641   106.43
2181.89    0.642   104.21
2182.89    0.644   102.01
2183.89    0.647    99.82
2184.89    0.650    97.65
2185.89    0.654    95.50
2186.89    0.659    93.38
2187.89    0.664    91.30
2188.89    0.670    89.25
2189.89    0.676    87.23
2190.89    0.683    85.25
2191.89    0.690    83.32
2192.89    0.698    81.42
2193.89    0.706    79.57
2194.89    0.715    77.76
2195.89    0.724    76.00
2196.89    0.734    74.28
2197.89    0.743    72.61
2198.89    0.754    70.98
2199.89    0.764    69.40
2200.89    0.775    67.86
2201.89    0.786    66.36
2202.89    0.798    64.91
2203.89    0.809    63.49
2204.89    0.821    62.12
2205.89    0.833    60.79
2206.89    0.845    59.49
2207.89    0.857    58.23
2208.89    0.870    57.01
2209.89    0.882    55.82
2210.89    0.895    54.67
2211.89    0.908    53.54
2212.89    0.921    52.45
2213.89    0.934    51.39
2214.89    0.946    50.36
2215.89    0.959    49.35
2216.89    0.972    48.38
2217.89    0.985    47.42
2218.89    0.998    46.50
2219.89    1.011    45.59
2220.89    1.024    44.71
2221.89    1.037    43.86
2222.89    1.050    43.02
2223.89    1.063    42.20
2224.89    1.076    41.40
2225.89    1.089    40.63
2226.89    1.102    39.87
2227.89    1.114    39.12
2228.89    1.127    38.40
2229.89    1.140    37.69
2230.89    1.152    36.99
2231.89    1.165    36.31
2232.89    1.177    35.65
2233.89    1.189    35.00
2234.89    1.201    34.36
2235.89    1.213    33.73
2236.89    1.225    33.12
2237.89    1.237    32.52
2238.89    1.249    31.93
2239.89    1.261    31.35
2240.89    1.272    30.78
2241.89    1.284    30.22
2242.89    1.295    29.67
2243.89    1.306    29.13
2244.89    1.317    28.60
2245.89    1.328    28.08
2246.89    1.339    27.57
2247.89    1.350    27.06
2248.89    1.361    26.57
2249.89    1.371    26.08
2250.89    1.382    25.60
2251.89    1.392    25.12
2252.89    1.402    24.66
2253.89    1.412    24.19
2254.89    1.422    23.74
2255.89    1.432    23.29
2256.89    1.442    22.85
2257.89    1.452    22.42
2258.89    1.461    21.99
2259.89    1.470    21.56
2260.89    1.480    21.14
2261.89    1.489    20.73
2262.89    1.498    20.32
2263.89    1.506    19.91
2264.89    1.515    19.51
2265.89    1.524    19.12
2266.89    1.532    18.73
2267.89    1.541    18.34
2268.89    1.549    17.96
2269.89    1.557    17.58
2270.89    1.565    17.21
2271.89    1.573    16.84
2272.89    1.581    16.47
2273.89    1.588    16.11
2274.89    1.596    15.75
2275.89    1.603    15.39
2276.89    1.610    15.04
2277.89    1.617    14.69
2278.89    1.624    14.34
2279.89    1.631    14.00
2280.89    1.638    13.65
2281.89    1.645    13.32
2282.89    1.651    12.98
2283.89    1.658    12.65
2284.89    1.664    12.32
2285.89    1.670    11.99
2286.89    1.676    11.66
2287.89    1.682    11.34
2288.89    1.688    11.02
2289.89    1.694    10.70
2290.89    1.699    10.38






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 15:22:34



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