Double Star Calculator - Results

WARNING: Invalid or missing GAIA IDs


Measurements for STT 545 AB

WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
05597+3713  STT 545     AB    2    4.08"    302.4°   B2024.074  HWI  120/900 APO   ASI120MC    

*05597+3713 STT 545     AB    1    4.06"    302.1°   B2024.074  HWI  120/900 APO   ASI120MC    
*05597+3713 STT 545     AB    1    4.10"    301.7°   B2024.074  HWI  120/900 APO   ASI120MC    

-- Image of STT-545-AB-taken with Equinox 120/900 APO --


WDS record for STT 545 AB
wds_id                       : 05597+3713
discoverer_code              : STT
discoverer_number            : 545
discoverer_components        : AB
date_first                   : 1871
date_last                    : 2022
num_of_obs                   : 126
pa_first                     : 7
pa_last                      : 302
sep_first                    : 2.1
sep_last                     : 3.7
mag_primary                  : 2.6
mag_secondary                : 7.2
spectral_type                : A0V
primary_proper_motion_RA     : 44
primary_proper_motion_DEC    : -74
secondary_proper_motion_RA   : 26
secondary_proper_motion_DEC  : -77
dm_number                    : +37 1380
notes                        : NO
precise_coordinate           : 055943.24+371245.9
                             : 05:59:43.24 +37:12:45.9

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
O: Orbit described in WDSNOT MEMO and has entry in Orbit Catalog


Orbital Elements for STT 545 AB
WDS: STT 545 AB WDS ID/Discoverer
P: 471.636 Orbital period (years)
a: 3.67538 Semi-major axis (arcseconds)
i: 117.058 Inclination (degrees)
Ω: 86.36 Longitude of ascending node (degrees)
T: 1784.665 Epoch of periastron passage (year)
e: 0.7131 Eccentricity
ω: 301.057 Argument of periastron (degrees)
Start-Year: 1789.182 Year
End-Year: 2260.818 Year
Epoch: 2016.0 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT 545 AB
Position: 055943.24+371245.9 Epoch-2000 right ascension and declination
WDS-ID: 05597+3713 WDS designation
Discoverer Code: STT 545 AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 40312 HD catalog number
Hipparcos number: 28380 Hipparcos catalog number
V1: 2.60 Magnitude of the primary
V2: 7.20 Magnitude of the secondary
Equinox: Equinox
Date: 2014 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
8 = Interferometric
9 = Astrometric
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STT 545 AB



WDS 6th Orbit including measures of STT 545 AB

-- 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 STT 545 AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2016.00    4.021   304.33
--------------------------
1789.00    0.978   102.02
1790.00    1.042    98.79
1791.00    1.103    95.93
1792.00    1.160    93.37
1793.00    1.213    91.03
1794.00    1.263    88.89
1795.00    1.308    86.90
1796.00    1.350    85.04
1797.00    1.389    83.28
1798.00    1.424    81.62
1799.00    1.456    80.04
1800.00    1.485    78.52
1801.00    1.512    77.05
1802.00    1.536    75.64
1803.00    1.558    74.26
1804.00    1.578    72.93
1805.00    1.597    71.62
1806.00    1.613    70.35
1807.00    1.628    69.10
1808.00    1.642    67.87
1809.00    1.655    66.66
1810.00    1.666    65.46
1811.00    1.676    64.29
1812.00    1.685    63.12
1813.00    1.694    61.97
1814.00    1.702    60.83
1815.00    1.709    59.70
1816.00    1.715    58.58
1817.00    1.721    57.46
1818.00    1.726    56.36
1819.00    1.731    55.25
1820.00    1.736    54.16
1821.00    1.740    53.07
1822.00    1.744    51.99
1823.00    1.747    50.91
1824.00    1.751    49.83
1825.00    1.754    48.76
1826.00    1.757    47.70
1827.00    1.760    46.63
1828.00    1.763    45.57
1829.00    1.766    44.52
1830.00    1.768    43.46
1831.00    1.771    42.41
1832.00    1.774    41.37
1833.00    1.777    40.32
1834.00    1.780    39.28
1835.00    1.783    38.25
1836.00    1.786    37.21
1837.00    1.789    36.18
1838.00    1.792    35.16
1839.00    1.795    34.14
1840.00    1.799    33.12
1841.00    1.802    32.10
1842.00    1.806    31.09
1843.00    1.810    30.09
1844.00    1.814    29.08
1845.00    1.818    28.09
1846.00    1.823    27.09
1847.00    1.827    26.11
1848.00    1.832    25.12
1849.00    1.837    24.15
1850.00    1.842    23.18
1851.00    1.848    22.21
1852.00    1.853    21.25
1853.00    1.859    20.29
1854.00    1.865    19.35
1855.00    1.871    18.40
1856.00    1.878    17.47
1857.00    1.885    16.54
1858.00    1.892    15.62
1859.00    1.899    14.70
1860.00    1.906    13.79
1861.00    1.914    12.89
1862.00    1.922    12.00
1863.00    1.930    11.11
1864.00    1.938    10.23
1865.00    1.947     9.36
1866.00    1.955     8.50
1867.00    1.964     7.64
1868.00    1.973     6.79
1869.00    1.983     5.95
1870.00    1.992     5.12
1871.00    2.002     4.29
1872.00    2.012     3.48
1873.00    2.022     2.67
1874.00    2.032     1.87
1875.00    2.043     1.08
1876.00    2.053     0.29
1877.00    2.064   359.52
1878.00    2.075   358.75
1879.00    2.087   357.99
1880.00    2.098   357.24
1881.00    2.110   356.50
1882.00    2.121   355.76
1883.00    2.133   355.03
1884.00    2.145   354.32
1885.00    2.157   353.61
1886.00    2.170   352.90
1887.00    2.182   352.21
1888.00    2.195   351.52
1889.00    2.208   350.84
1890.00    2.221   350.17
1891.00    2.234   349.51
1892.00    2.247   348.86
1893.00    2.260   348.21
1894.00    2.274   347.57
1895.00    2.287   346.94
1896.00    2.301   346.31
1897.00    2.315   345.69
1898.00    2.328   345.08
1899.00    2.342   344.48
1900.00    2.356   343.88
1901.00    2.371   343.30
1902.00    2.385   342.71
1903.00    2.399   342.14
1904.00    2.414   341.57
1905.00    2.428   341.01
1906.00    2.443   340.46
1907.00    2.457   339.91
1908.00    2.472   339.37
1909.00    2.487   338.83
1910.00    2.502   338.30
1911.00    2.516   337.78
1912.00    2.531   337.26
1913.00    2.546   336.75
1914.00    2.562   336.25
1915.00    2.577   335.75
1916.00    2.592   335.26
1917.00    2.607   334.77
1918.00    2.622   334.29
1919.00    2.638   333.82
1920.00    2.653   333.35
1921.00    2.668   332.88
1922.00    2.684   332.42
1923.00    2.699   331.97
1924.00    2.714   331.52
1925.00    2.730   331.08
1926.00    2.745   330.64
1927.00    2.761   330.20
1928.00    2.776   329.77
1929.00    2.792   329.35
1930.00    2.807   328.93
1931.00    2.823   328.52
1932.00    2.839   328.11
1933.00    2.854   327.70
1934.00    2.870   327.30
1935.00    2.885   326.90
1936.00    2.901   326.51
1937.00    2.916   326.12
1938.00    2.932   325.74
1939.00    2.948   325.35
1940.00    2.963   324.98
1941.00    2.979   324.61
1942.00    2.994   324.24
1943.00    3.010   323.87
1944.00    3.025   323.51
1945.00    3.041   323.15
1946.00    3.056   322.80
1947.00    3.072   322.45
1948.00    3.087   322.10
1949.00    3.103   321.76
1950.00    3.118   321.42
1951.00    3.133   321.08
1952.00    3.149   320.75
1953.00    3.164   320.42
1954.00    3.179   320.09
1955.00    3.195   319.77
1956.00    3.210   319.45
1957.00    3.225   319.13
1958.00    3.240   318.82
1959.00    3.255   318.50
1960.00    3.270   318.20
1961.00    3.285   317.89
1962.00    3.300   317.59
1963.00    3.315   317.29
1964.00    3.330   316.99
1965.00    3.345   316.69
1966.00    3.360   316.40
1967.00    3.375   316.11
1968.00    3.389   315.82
1969.00    3.404   315.54
1970.00    3.419   315.25
1971.00    3.433   314.97
1972.00    3.448   314.70
1973.00    3.462   314.42
1974.00    3.477   314.15
1975.00    3.491   313.88
1976.00    3.505   313.61
1977.00    3.520   313.34
1978.00    3.534   313.08
1979.00    3.548   312.82
1980.00    3.562   312.56
1981.00    3.576   312.30
1982.00    3.590   312.04
1983.00    3.604   311.79
1984.00    3.618   311.53
1985.00    3.631   311.28
1986.00    3.645   311.04
1987.00    3.659   310.79
1988.00    3.672   310.54
1989.00    3.686   310.30
1990.00    3.699   310.06
1991.00    3.713   309.82
1992.00    3.726   309.58
1993.00    3.739   309.35
1994.00    3.752   309.11
1995.00    3.765   308.88
1996.00    3.778   308.65
1997.00    3.791   308.42
1998.00    3.804   308.19
1999.00    3.817   307.97
2000.00    3.829   307.74
2001.00    3.842   307.52
2002.00    3.855   307.29
2003.00    3.867   307.07
2004.00    3.879   306.85
2005.00    3.892   306.64
2006.00    3.904   306.42
2007.00    3.916   306.21
2008.00    3.928   305.99
2009.00    3.940   305.78
2010.00    3.952   305.57
2011.00    3.964   305.36
2012.00    3.975   305.15
2013.00    3.987   304.94
2014.00    3.998   304.74
2015.00    4.010   304.53
2016.00    4.021   304.33
2017.00    4.032   304.12
2018.00    4.043   303.92
2019.00    4.055   303.72
2020.00    4.065   303.52
2021.00    4.076   303.32
2022.00    4.087   303.13
2023.00    4.098   302.93
2024.00    4.108   302.73
2025.00    4.119   302.54
2026.00    4.129   302.35
2027.00    4.139   302.15
2028.00    4.150   301.96
2029.00    4.160   301.77
2030.00    4.170   301.58
2031.00    4.180   301.39
2032.00    4.189   301.21
2033.00    4.199   301.02
2034.00    4.209   300.83
2035.00    4.218   300.65
2036.00    4.227   300.46
2037.00    4.237   300.28
2038.00    4.246   300.10
2039.00    4.255   299.92
2040.00    4.264   299.73
2041.00    4.273   299.55
2042.00    4.281   299.37
2043.00    4.290   299.19
2044.00    4.298   299.02
2045.00    4.307   298.84
2046.00    4.315   298.66
2047.00    4.323   298.49
2048.00    4.331   298.31
2049.00    4.339   298.14
2050.00    4.347   297.96
2051.00    4.354   297.79
2052.00    4.362   297.61
2053.00    4.369   297.44
2054.00    4.377   297.27
2055.00    4.384   297.10
2056.00    4.391   296.93
2057.00    4.398   296.76
2058.00    4.405   296.59
2059.00    4.411   296.42
2060.00    4.418   296.25
2061.00    4.424   296.08
2062.00    4.431   295.91
2063.00    4.437   295.75
2064.00    4.443   295.58
2065.00    4.449   295.41
2066.00    4.454   295.25
2067.00    4.460   295.08
2068.00    4.466   294.92
2069.00    4.471   294.75
2070.00    4.476   294.59
2071.00    4.481   294.42
2072.00    4.486   294.26
2073.00    4.491   294.10
2074.00    4.496   293.93
2075.00    4.500   293.77
2076.00    4.505   293.61
2077.00    4.509   293.45
2078.00    4.513   293.29
2079.00    4.517   293.12
2080.00    4.521   292.96
2081.00    4.525   292.80
2082.00    4.528   292.64
2083.00    4.531   292.48
2084.00    4.535   292.32
2085.00    4.538   292.16
2086.00    4.541   292.00
2087.00    4.543   291.84
2088.00    4.546   291.68
2089.00    4.548   291.52
2090.00    4.551   291.37
2091.00    4.553   291.21
2092.00    4.555   291.05
2093.00    4.557   290.89
2094.00    4.558   290.73
2095.00    4.560   290.57
2096.00    4.561   290.42
2097.00    4.562   290.26
2098.00    4.563   290.10
2099.00    4.564   289.94
2100.00    4.565   289.78
2101.00    4.565   289.63
2102.00    4.565   289.47
2103.00    4.566   289.31
2104.00    4.565   289.15
2105.00    4.565   288.99
2106.00    4.565   288.84
2107.00    4.564   288.68
2108.00    4.563   288.52
2109.00    4.562   288.36
2110.00    4.561   288.21
2111.00    4.560   288.05
2112.00    4.558   287.89
2113.00    4.557   287.73
2114.00    4.555   287.57
2115.00    4.553   287.41
2116.00    4.550   287.25
2117.00    4.548   287.10
2118.00    4.545   286.94
2119.00    4.542   286.78
2120.00    4.539   286.62
2121.00    4.536   286.46
2122.00    4.532   286.30
2123.00    4.528   286.14
2124.00    4.524   285.98
2125.00    4.520   285.82
2126.00    4.516   285.66
2127.00    4.511   285.49
2128.00    4.506   285.33
2129.00    4.501   285.17
2130.00    4.496   285.01
2131.00    4.490   284.85
2132.00    4.484   284.68
2133.00    4.478   284.52
2134.00    4.472   284.35
2135.00    4.466   284.19
2136.00    4.459   284.02
2137.00    4.452   283.86
2138.00    4.445   283.69
2139.00    4.437   283.53
2140.00    4.430   283.36
2141.00    4.422   283.19
2142.00    4.414   283.02
2143.00    4.405   282.85
2144.00    4.396   282.68
2145.00    4.387   282.51
2146.00    4.378   282.34
2147.00    4.368   282.17
2148.00    4.359   282.00
2149.00    4.348   281.82
2150.00    4.338   281.65
2151.00    4.327   281.47
2152.00    4.316   281.30
2153.00    4.305   281.12
2154.00    4.293   280.94
2155.00    4.282   280.76
2156.00    4.269   280.58
2157.00    4.257   280.40
2158.00    4.244   280.22
2159.00    4.231   280.04
2160.00    4.217   279.85
2161.00    4.204   279.67
2162.00    4.190   279.48
2163.00    4.175   279.29
2164.00    4.160   279.10
2165.00    4.145   278.91
2166.00    4.130   278.72
2167.00    4.114   278.53
2168.00    4.097   278.33
2169.00    4.081   278.14
2170.00    4.064   277.94
2171.00    4.047   277.74
2172.00    4.029   277.54
2173.00    4.011   277.33
2174.00    3.992   277.13
2175.00    3.973   276.92
2176.00    3.954   276.71
2177.00    3.934   276.50
2178.00    3.914   276.29
2179.00    3.893   276.07
2180.00    3.872   275.85
2181.00    3.851   275.63
2182.00    3.829   275.41
2183.00    3.806   275.18
2184.00    3.783   274.95
2185.00    3.760   274.72
2186.00    3.736   274.49
2187.00    3.711   274.25
2188.00    3.687   274.01
2189.00    3.661   273.77
2190.00    3.635   273.52
2191.00    3.609   273.27
2192.00    3.582   273.02
2193.00    3.554   272.76
2194.00    3.526   272.49
2195.00    3.497   272.23
2196.00    3.467   271.96
2197.00    3.437   271.68
2198.00    3.407   271.40
2199.00    3.375   271.11
2200.00    3.344   270.82
2201.00    3.311   270.53
2202.00    3.278   270.22
2203.00    3.244   269.91
2204.00    3.209   269.60
2205.00    3.173   269.27
2206.00    3.137   268.94
2207.00    3.100   268.61
2208.00    3.062   268.26
2209.00    3.024   267.91
2210.00    2.984   267.54
2211.00    2.944   267.17
2212.00    2.903   266.78
2213.00    2.860   266.39
2214.00    2.817   265.98
2215.00    2.773   265.56
2216.00    2.728   265.12
2217.00    2.682   264.67
2218.00    2.635   264.21
2219.00    2.587   263.73
2220.00    2.538   263.22
2221.00    2.487   262.70
2222.00    2.436   262.16
2223.00    2.383   261.59
2224.00    2.329   261.00
2225.00    2.273   260.38
2226.00    2.217   259.73
2227.00    2.159   259.04
2228.00    2.099   258.32
2229.00    2.038   257.55
2230.00    1.976   256.73
2231.00    1.912   255.86
2232.00    1.847   254.93
2233.00    1.780   253.93
2234.00    1.711   252.85
2235.00    1.641   251.68
2236.00    1.569   250.40
2237.00    1.496   249.00
2238.00    1.421   247.45
2239.00    1.345   245.73
2240.00    1.267   243.80
2241.00    1.188   241.62
2242.00    1.108   239.12
2243.00    1.028   236.23
2244.00    0.947   232.85
2245.00    0.868   228.85
2246.00    0.790   224.05
2247.00    0.716   218.24
2248.00    0.648   211.14
2249.00    0.589   202.51
2250.00    0.543   192.20
2251.00    0.515   180.37
2252.00    0.507   167.69
2253.00    0.521   155.17
2254.00    0.555   143.73
2255.00    0.603   133.86
2256.00    0.663   125.61
2257.00    0.728   118.79
2258.00    0.797   113.12
2259.00    0.867   108.36
2260.00    0.935   104.31
2261.00    1.001   100.80





Observation Date:


Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2026. 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 makes use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Additionally, it incorporates data from the Washington Double Star Catalog, maintained at the U.S. Naval Observatory, and makes use of the Aladin Sky Atlas developed at CDS, Strasbourg Observatory, France. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2591 $)
Report created: 2026-09-09 08:52:38 +0200



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