Double Star Calculator - Orbit

Orbital Elements for STF1932AB
WDS: STF1932AB WDS ID/Discoverer
P: 196.628 Orbital period (years)
a: 1.21625 Semi-major axis (arcseconds)
i: 59.764 Inclination (degrees)
Ω: 64.231 Longitude of ascending node (degrees)
T: 1941.548 Epoch of periastron passage (year)
e: 0.64086 Eccentricity
ω: 50.836 Longitude of periastron (degrees)
Start-Year: 1926.686 Year
End-Year: 2123.314 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1932AB
Position: 151820.19+265024.7 Epoch-2000 right ascension and declination
WDS-ID: 15183+2650 WDS designation
Discoverer Code: STF1932AB Discover designation and components
ADS number: 9578 Aitken Double Star catalog
HD number: 136176 HD catalog number
Hipparcos number: 74893 Hipparcos catalog number
V1: 7.32 Magnitude of the primary
V2: 7.41 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 2 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 STF1932AB



WDS 6th Orbit including measures of STF1932AB

-- 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 STF1932AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.578   270.01
--------------------------
1926.69    0.611    33.76
1927.69    0.608    36.58
1928.69    0.605    39.42
1929.69    0.600    42.31
1930.69    0.594    45.25
1931.69    0.586    48.25
1932.69    0.576    51.36
1933.69    0.563    54.59
1934.69    0.546    57.99
1935.69    0.526    61.63
1936.69    0.502    65.59
1937.69    0.473    70.00
1938.69    0.439    75.04
1939.69    0.401    80.98
1940.69    0.360    88.23
1941.69    0.319    97.35
1942.69    0.281   109.09
1943.69    0.252   124.01
1944.69    0.239   141.63
1945.69    0.245   159.76
1946.69    0.270   175.73
1947.69    0.308   188.38
1948.69    0.354   198.01
1949.69    0.404   205.34
1950.69    0.455   211.03
1951.69    0.507   215.56
1952.69    0.558   219.26
1953.69    0.608   222.35
1954.69    0.656   224.97
1955.69    0.703   227.24
1956.69    0.748   229.23
1957.69    0.791   231.00
1958.69    0.833   232.59
1959.69    0.872   234.03
1960.69    0.911   235.35
1961.69    0.948   236.56
1962.69    0.983   237.69
1963.69    1.017   238.73
1964.69    1.049   239.72
1965.69    1.080   240.64
1966.69    1.110   241.51
1967.69    1.138   242.34
1968.69    1.166   243.13
1969.69    1.192   243.88
1970.69    1.217   244.61
1971.69    1.241   245.30
1972.69    1.264   245.97
1973.69    1.286   246.61
1974.69    1.307   247.23
1975.69    1.328   247.83
1976.69    1.347   248.42
1977.69    1.365   248.99
1978.69    1.383   249.54
1979.69    1.400   250.08
1980.69    1.416   250.61
1981.69    1.431   251.13
1982.69    1.446   251.63
1983.69    1.460   252.13
1984.69    1.473   252.62
1985.69    1.486   253.09
1986.69    1.498   253.57
1987.69    1.509   254.03
1988.69    1.520   254.49
1989.69    1.530   254.94
1990.69    1.539   255.38
1991.69    1.548   255.82
1992.69    1.556   256.25
1993.69    1.564   256.68
1994.69    1.571   257.11
1995.69    1.578   257.53
1996.69    1.584   257.95
1997.69    1.590   258.37
1998.69    1.595   258.78
1999.69    1.600   259.19
2000.69    1.604   259.60
2001.69    1.608   260.00
2002.69    1.612   260.41
2003.69    1.614   260.81
2004.69    1.617   261.21
2005.69    1.619   261.61
2006.69    1.621   262.01
2007.69    1.622   262.41
2008.69    1.623   262.81
2009.69    1.623   263.20
2010.69    1.623   263.60
2011.69    1.623   264.00
2012.69    1.623   264.40
2013.69    1.622   264.79
2014.69    1.620   265.19
2015.69    1.618   265.59
2016.69    1.616   265.99
2017.69    1.614   266.39
2018.69    1.611   266.79
2019.69    1.608   267.20
2020.69    1.605   267.60
2021.69    1.601   268.01
2022.69    1.597   268.42
2023.69    1.592   268.83
2024.69    1.588   269.25
2025.69    1.583   269.66
2026.69    1.577   270.08
2027.69    1.572   270.51
2028.69    1.566   270.93
2029.69    1.560   271.36
2030.69    1.553   271.79
2031.69    1.547   272.23
2032.69    1.540   272.67
2033.69    1.532   273.11
2034.69    1.525   273.56
2035.69    1.517   274.01
2036.69    1.509   274.47
2037.69    1.501   274.93
2038.69    1.492   275.40
2039.69    1.483   275.87
2040.69    1.474   276.35
2041.69    1.465   276.84
2042.69    1.456   277.33
2043.69    1.446   277.82
2044.69    1.436   278.33
2045.69    1.426   278.84
2046.69    1.415   279.36
2047.69    1.405   279.89
2048.69    1.394   280.42
2049.69    1.383   280.96
2050.69    1.372   281.52
2051.69    1.360   282.08
2052.69    1.349   282.65
2053.69    1.337   283.23
2054.69    1.325   283.82
2055.69    1.313   284.42
2056.69    1.300   285.03
2057.69    1.288   285.66
2058.69    1.275   286.30
2059.69    1.262   286.95
2060.69    1.249   287.61
2061.69    1.236   288.29
2062.69    1.223   288.98
2063.69    1.210   289.69
2064.69    1.196   290.41
2065.69    1.183   291.15
2066.69    1.169   291.91
2067.69    1.155   292.68
2068.69    1.141   293.48
2069.69    1.127   294.29
2070.69    1.113   295.13
2071.69    1.098   295.98
2072.69    1.084   296.86
2073.69    1.070   297.77
2074.69    1.055   298.69
2075.69    1.041   299.65
2076.69    1.026   300.63
2077.69    1.012   301.63
2078.69    0.997   302.67
2079.69    0.983   303.74
2080.69    0.968   304.84
2081.69    0.954   305.97
2082.69    0.939   307.14
2083.69    0.925   308.35
2084.69    0.911   309.59
2085.69    0.897   310.87
2086.69    0.883   312.19
2087.69    0.869   313.56
2088.69    0.855   314.97
2089.69    0.841   316.43
2090.69    0.828   317.93
2091.69    0.815   319.48
2092.69    0.802   321.09
2093.69    0.789   322.74
2094.69    0.776   324.45
2095.69    0.764   326.22
2096.69    0.752   328.04
2097.69    0.741   329.91
2098.69    0.730   331.85
2099.69    0.719   333.84
2100.69    0.709   335.90
2101.69    0.699   338.01
2102.69    0.690   340.18
2103.69    0.682   342.40
2104.69    0.673   344.68
2105.69    0.666   347.02
2106.69    0.659   349.41
2107.69    0.652   351.84
2108.69    0.646   354.33
2109.69    0.641   356.85
2110.69    0.636   359.42
2111.69    0.632     2.02
2112.69    0.629     4.65
2113.69    0.626     7.31
2114.69    0.623    10.00
2115.69    0.621    12.70
2116.69    0.619    15.42
2117.69    0.618    18.16
2118.69    0.617    20.91
2119.69    0.616    23.66
2120.69    0.615    26.43
2121.69    0.613    29.21
2122.69    0.612    32.00






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 17:13:39



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