Double Star Calculator - Orbit

Orbital Elements for STF2052AB
WDS: STF2052AB WDS ID/Discoverer
P: 229.500 Orbital period (years)
a: 2.23051 Semi-major axis (arcseconds)
i: 108.336 Inclination (degrees)
Ω: 94.285 Longitude of ascending node (degrees)
T: 1921.026 Epoch of periastron passage (year)
e: 0.7581 Eccentricity
ω: 131.04 Longitude of periastron (degrees)
Start-Year: 1910.25005 Year
End-Year: 2139.74995 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2052AB
Position: 162852.67+182450.6 Epoch-2000 right ascension and declination
WDS-ID: 16289+1825 WDS designation
Discoverer Code: STF2052AB Discover designation and components
ADS number: 10075 Aitken Double Star catalog
HD number: 148653 HD catalog number
Hipparcos number: 80725 Hipparcos catalog number
V1: 7.69 Magnitude of the primary
V2: 7.91 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 STF2052AB



WDS 6th Orbit including measures of STF2052AB

Error: Connection error while accessing WDS 6th Orbit image.


Ephemeris of STF2052AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.589   116.25
--------------------------
1910.25    1.034    84.94
1911.25    0.938    83.29
1912.25    0.836    81.25
1913.25    0.729    78.63
1914.25    0.617    75.08
1915.25    0.501    69.91
1916.25    0.383    61.55
1917.25    0.272    46.05
1918.25    0.196    14.71
1919.25    0.209   332.09
1920.25    0.295   305.34
1921.25    0.400   291.78
1922.25    0.497   283.77
1923.25    0.577   278.23
1924.25    0.638   273.91
1925.25    0.682   270.24
1926.25    0.711   266.96
1927.25    0.730   263.88
1928.25    0.739   260.91
1929.25    0.742   258.00
1930.25    0.740   255.09
1931.25    0.735   252.15
1932.25    0.727   249.16
1933.25    0.718   246.09
1934.25    0.708   242.94
1935.25    0.697   239.69
1936.25    0.686   236.34
1937.25    0.676   232.89
1938.25    0.667   229.34
1939.25    0.659   225.69
1940.25    0.652   221.96
1941.25    0.647   218.17
1942.25    0.644   214.32
1943.25    0.643   210.46
1944.25    0.644   206.59
1945.25    0.647   202.75
1946.25    0.653   198.96
1947.25    0.660   195.24
1948.25    0.670   191.62
1949.25    0.681   188.11
1950.25    0.695   184.73
1951.25    0.710   181.48
1952.25    0.727   178.38
1953.25    0.746   175.43
1954.25    0.766   172.62
1955.25    0.787   169.96
1956.25    0.809   167.45
1957.25    0.832   165.07
1958.25    0.857   162.83
1959.25    0.882   160.71
1960.25    0.908   158.71
1961.25    0.934   156.82
1962.25    0.961   155.03
1963.25    0.988   153.35
1964.25    1.016   151.75
1965.25    1.045   150.25
1966.25    1.073   148.82
1967.25    1.102   147.46
1968.25    1.131   146.18
1969.25    1.160   144.96
1970.25    1.189   143.80
1971.25    1.219   142.69
1972.25    1.248   141.64
1973.25    1.277   140.63
1974.25    1.307   139.68
1975.25    1.336   138.76
1976.25    1.366   137.88
1977.25    1.395   137.04
1978.25    1.424   136.23
1979.25    1.453   135.46
1980.25    1.482   134.72
1981.25    1.511   134.00
1982.25    1.540   133.31
1983.25    1.569   132.65
1984.25    1.597   132.01
1985.25    1.626   131.40
1986.25    1.654   130.80
1987.25    1.682   130.23
1988.25    1.710   129.67
1989.25    1.737   129.13
1990.25    1.765   128.61
1991.25    1.792   128.10
1992.25    1.819   127.61
1993.25    1.846   127.13
1994.25    1.872   126.67
1995.25    1.899   126.22
1996.25    1.925   125.78
1997.25    1.951   125.36
1998.25    1.976   124.94
1999.25    2.002   124.54
2000.25    2.027   124.14
2001.25    2.052   123.76
2002.25    2.077   123.38
2003.25    2.101   123.01
2004.25    2.125   122.65
2005.25    2.149   122.30
2006.25    2.173   121.96
2007.25    2.196   121.63
2008.25    2.219   121.30
2009.25    2.242   120.97
2010.25    2.264   120.66
2011.25    2.286   120.35
2012.25    2.308   120.05
2013.25    2.330   119.75
2014.25    2.351   119.46
2015.25    2.373   119.17
2016.25    2.393   118.89
2017.25    2.414   118.61
2018.25    2.434   118.34
2019.25    2.454   118.07
2020.25    2.474   117.81
2021.25    2.493   117.55
2022.25    2.512   117.29
2023.25    2.531   117.04
2024.25    2.549   116.79
2025.25    2.567   116.55
2026.25    2.585   116.31
2027.25    2.602   116.07
2028.25    2.619   115.83
2029.25    2.636   115.60
2030.25    2.653   115.37
2031.25    2.669   115.15
2032.25    2.685   114.92
2033.25    2.700   114.70
2034.25    2.715   114.48
2035.25    2.730   114.27
2036.25    2.745   114.05
2037.25    2.759   113.84
2038.25    2.773   113.63
2039.25    2.786   113.42
2040.25    2.799   113.22
2041.25    2.812   113.02
2042.25    2.824   112.81
2043.25    2.836   112.61
2044.25    2.848   112.42
2045.25    2.859   112.22
2046.25    2.870   112.02
2047.25    2.881   111.83
2048.25    2.891   111.64
2049.25    2.901   111.45
2050.25    2.910   111.26
2051.25    2.919   111.07
2052.25    2.928   110.88
2053.25    2.936   110.70
2054.25    2.944   110.51
2055.25    2.952   110.33
2056.25    2.959   110.14
2057.25    2.966   109.96
2058.25    2.972   109.78
2059.25    2.978   109.60
2060.25    2.983   109.42
2061.25    2.988   109.24
2062.25    2.993   109.06
2063.25    2.997   108.88
2064.25    3.001   108.70
2065.25    3.004   108.53
2066.25    3.007   108.35
2067.25    3.009   108.17
2068.25    3.011   107.99
2069.25    3.013   107.82
2070.25    3.014   107.64
2071.25    3.014   107.47
2072.25    3.014   107.29
2073.25    3.014   107.11
2074.25    3.013   106.94
2075.25    3.011   106.76
2076.25    3.009   106.58
2077.25    3.007   106.41
2078.25    3.004   106.23
2079.25    3.000   106.05
2080.25    2.996   105.87
2081.25    2.991   105.69
2082.25    2.986   105.52
2083.25    2.980   105.34
2084.25    2.974   105.16
2085.25    2.967   104.97
2086.25    2.960   104.79
2087.25    2.951   104.61
2088.25    2.943   104.42
2089.25    2.933   104.24
2090.25    2.923   104.05
2091.25    2.912   103.86
2092.25    2.901   103.67
2093.25    2.889   103.48
2094.25    2.876   103.29
2095.25    2.863   103.10
2096.25    2.849   102.90
2097.25    2.834   102.70
2098.25    2.818   102.50
2099.25    2.802   102.30
2100.25    2.784   102.09
2101.25    2.766   101.88
2102.25    2.747   101.67
2103.25    2.728   101.46
2104.25    2.707   101.24
2105.25    2.685   101.02
2106.25    2.663   100.80
2107.25    2.640   100.57
2108.25    2.615   100.34
2109.25    2.590   100.10
2110.25    2.563    99.86
2111.25    2.536    99.62
2112.25    2.507    99.36
2113.25    2.477    99.11
2114.25    2.447    98.84
2115.25    2.414    98.57
2116.25    2.381    98.29
2117.25    2.346    98.01
2118.25    2.310    97.71
2119.25    2.273    97.41
2120.25    2.233    97.09
2121.25    2.193    96.76
2122.25    2.151    96.42
2123.25    2.107    96.07
2124.25    2.061    95.70
2125.25    2.014    95.32
2126.25    1.964    94.91
2127.25    1.913    94.49
2128.25    1.859    94.04
2129.25    1.803    93.56
2130.25    1.745    93.05
2131.25    1.684    92.50
2132.25    1.620    91.92
2133.25    1.554    91.28
2134.25    1.484    90.59
2135.25    1.411    89.82
2136.25    1.334    88.97
2137.25    1.254    88.02
2138.25    1.169    86.93
2139.25    1.080    85.66






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 17:27:58



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