Double Star Calculator - Orbit

Orbital Elements for STT392AB
WDS: STT392AB WDS ID/Discoverer
P: 270.300 Orbital period (years)
a: 0.26 Semi-major axis (arcseconds)
i: 112.7 Inclination (degrees)
Ω: 140.9 Longitude of ascending node (degrees)
T: 2027.000 Epoch of periastron passage (year)
e: 0.523 Eccentricity
ω: 34.1 Longitude of periastron (degrees)
Start-Year: 1889.85 Year
End-Year: 2160.15 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT392AB
Position: 195756.12+421538.9 Epoch-2000 right ascension and declination
WDS-ID: 19579+4216 WDS designation
Discoverer Code: STT392AB Discover designation and components
ADS number: 13186 Aitken Double Star catalog
HD number: 189377 HD catalog number
Hipparcos number: 98253 Hipparcos catalog number
V1: 6.6 Magnitude of the primary
V2: 8.4 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1997 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Zir2010b Reference

Double Star Orbit for STT392AB



WDS 6th Orbit including measures of STT392AB

-- 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 STT392AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.109   127.54
--------------------------
1889.85    0.342   306.77
1890.85    0.340   306.51
1891.85    0.339   306.26
1892.85    0.337   306.00
1893.85    0.336   305.74
1894.85    0.334   305.47
1895.85    0.332   305.21
1896.85    0.331   304.94
1897.85    0.329   304.66
1898.85    0.327   304.39
1899.85    0.325   304.11
1900.85    0.323   303.83
1901.85    0.321   303.54
1902.85    0.319   303.25
1903.85    0.317   302.96
1904.85    0.315   302.66
1905.85    0.313   302.36
1906.85    0.311   302.06
1907.85    0.308   301.75
1908.85    0.306   301.44
1909.85    0.304   301.12
1910.85    0.301   300.79
1911.85    0.299   300.47
1912.85    0.297   300.13
1913.85    0.294   299.79
1914.85    0.292   299.45
1915.85    0.289   299.10
1916.85    0.287   298.74
1917.85    0.284   298.38
1918.85    0.281   298.01
1919.85    0.279   297.63
1920.85    0.276   297.24
1921.85    0.273   296.85
1922.85    0.271   296.45
1923.85    0.268   296.04
1924.85    0.265   295.62
1925.85    0.262   295.20
1926.85    0.259   294.76
1927.85    0.256   294.32
1928.85    0.253   293.86
1929.85    0.250   293.39
1930.85    0.247   292.91
1931.85    0.244   292.42
1932.85    0.241   291.92
1933.85    0.238   291.41
1934.85    0.235   290.88
1935.85    0.232   290.33
1936.85    0.229   289.77
1937.85    0.225   289.20
1938.85    0.222   288.61
1939.85    0.219   288.00
1940.85    0.216   287.37
1941.85    0.212   286.73
1942.85    0.209   286.06
1943.85    0.206   285.37
1944.85    0.202   284.66
1945.85    0.199   283.93
1946.85    0.196   283.17
1947.85    0.192   282.38
1948.85    0.189   281.57
1949.85    0.186   280.72
1950.85    0.182   279.85
1951.85    0.179   278.94
1952.85    0.176   278.00
1953.85    0.172   277.02
1954.85    0.169   276.00
1955.85    0.166   274.94
1956.85    0.162   273.84
1957.85    0.159   272.69
1958.85    0.156   271.50
1959.85    0.152   270.25
1960.85    0.149   268.94
1961.85    0.146   267.58
1962.85    0.143   266.16
1963.85    0.140   264.68
1964.85    0.137   263.13
1965.85    0.134   261.50
1966.85    0.131   259.81
1967.85    0.128   258.04
1968.85    0.125   256.19
1969.85    0.122   254.25
1970.85    0.120   252.23
1971.85    0.117   250.13
1972.85    0.115   247.94
1973.85    0.113   245.66
1974.85    0.111   243.29
1975.85    0.109   240.83
1976.85    0.107   238.29
1977.85    0.105   235.67
1978.85    0.104   232.97
1979.85    0.103   230.20
1980.85    0.102   227.37
1981.85    0.101   224.49
1982.85    0.100   221.57
1983.85    0.100   218.61
1984.85    0.100   215.64
1985.85    0.100   212.66
1986.85    0.100   209.68
1987.85    0.100   206.72
1988.85    0.101   203.79
1989.85    0.102   200.91
1990.85    0.103   198.07
1991.85    0.104   195.29
1992.85    0.105   192.57
1993.85    0.106   189.92
1994.85    0.108   187.35
1995.85    0.110   184.85
1996.85    0.111   182.43
1997.85    0.113   180.08
1998.85    0.115   177.81
1999.85    0.117   175.62
2000.85    0.119   173.50
2001.85    0.121   171.44
2002.85    0.123   169.45
2003.85    0.125   167.53
2004.85    0.127   165.66
2005.85    0.129   163.84
2006.85    0.130   162.07
2007.85    0.132   160.34
2008.85    0.133   158.66
2009.85    0.134   157.00
2010.85    0.135   155.38
2011.85    0.136   153.77
2012.85    0.137   152.19
2013.85    0.137   150.61
2014.85    0.137   149.04
2015.85    0.137   147.46
2016.85    0.136   145.87
2017.85    0.135   144.26
2018.85    0.134   142.63
2019.85    0.132   140.95
2020.85    0.130   139.21
2021.85    0.127   137.41
2022.85    0.124   135.53
2023.85    0.120   133.54
2024.85    0.116   131.41
2025.85    0.112   129.13
2026.85    0.107   126.65
2027.85    0.102   123.93
2028.85    0.096   120.91
2029.85    0.091   117.54
2030.85    0.085   113.73
2031.85    0.080   109.38
2032.85    0.074   104.39
2033.85    0.069    98.64
2034.85    0.065    92.03
2035.85    0.061    84.51
2036.85    0.058    76.10
2037.85    0.056    67.01
2038.85    0.056    57.55
2039.85    0.057    48.18
2040.85    0.059    39.30
2041.85    0.062    31.21
2042.85    0.067    24.05
2043.85    0.072    17.82
2044.85    0.077    12.45
2045.85    0.083     7.83
2046.85    0.089     3.85
2047.85    0.096     0.40
2048.85    0.103   357.39
2049.85    0.109   354.74
2050.85    0.116   352.41
2051.85    0.123   350.33
2052.85    0.129   348.46
2053.85    0.136   346.78
2054.85    0.143   345.26
2055.85    0.149   343.87
2056.85    0.156   342.60
2057.85    0.162   341.42
2058.85    0.168   340.34
2059.85    0.174   339.33
2060.85    0.180   338.39
2061.85    0.186   337.51
2062.85    0.192   336.68
2063.85    0.198   335.90
2064.85    0.203   335.17
2065.85    0.209   334.47
2066.85    0.214   333.81
2067.85    0.220   333.18
2068.85    0.225   332.58
2069.85    0.230   332.01
2070.85    0.235   331.46
2071.85    0.239   330.93
2072.85    0.244   330.42
2073.85    0.249   329.94
2074.85    0.253   329.46
2075.85    0.257   329.01
2076.85    0.262   328.57
2077.85    0.266   328.14
2078.85    0.270   327.73
2079.85    0.274   327.33
2080.85    0.278   326.94
2081.85    0.281   326.56
2082.85    0.285   326.19
2083.85    0.288   325.83
2084.85    0.292   325.48
2085.85    0.295   325.14
2086.85    0.299   324.80
2087.85    0.302   324.47
2088.85    0.305   324.15
2089.85    0.308   323.83
2090.85    0.311   323.52
2091.85    0.313   323.22
2092.85    0.316   322.92
2093.85    0.319   322.63
2094.85    0.321   322.34
2095.85    0.324   322.05
2096.85    0.326   321.77
2097.85    0.328   321.50
2098.85    0.331   321.22
2099.85    0.333   320.95
2100.85    0.335   320.69
2101.85    0.337   320.43
2102.85    0.339   320.17
2103.85    0.341   319.91
2104.85    0.342   319.66
2105.85    0.344   319.40
2106.85    0.346   319.15
2107.85    0.347   318.91
2108.85    0.349   318.66
2109.85    0.350   318.42
2110.85    0.351   318.18
2111.85    0.352   317.94
2112.85    0.354   317.70
2113.85    0.355   317.47
2114.85    0.356   317.23
2115.85    0.357   317.00
2116.85    0.358   316.77
2117.85    0.359   316.54
2118.85    0.359   316.31
2119.85    0.360   316.08
2120.85    0.361   315.85
2121.85    0.361   315.62
2122.85    0.362   315.40
2123.85    0.362   315.17
2124.85    0.363   314.94
2125.85    0.363   314.72
2126.85    0.363   314.49
2127.85    0.364   314.27
2128.85    0.364   314.05
2129.85    0.364   313.82
2130.85    0.364   313.60
2131.85    0.364   313.38
2132.85    0.364   313.15
2133.85    0.364   312.93
2134.85    0.364   312.70
2135.85    0.363   312.48
2136.85    0.363   312.26
2137.85    0.363   312.03
2138.85    0.362   311.81
2139.85    0.362   311.58
2140.85    0.361   311.35
2141.85    0.361   311.13
2142.85    0.360   310.90
2143.85    0.360   310.67
2144.85    0.359   310.44
2145.85    0.358   310.21
2146.85    0.357   309.98
2147.85    0.356   309.75
2148.85    0.356   309.51
2149.85    0.355   309.28
2150.85    0.354   309.04
2151.85    0.353   308.80
2152.85    0.351   308.57
2153.85    0.350   308.32
2154.85    0.349   308.08
2155.85    0.348   307.84
2156.85    0.347   307.59
2157.85    0.345   307.35
2158.85    0.344   307.10
2159.85    0.342   306.84






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 18:10:35



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