Double Star Calculator - Orbit

Orbital Elements for STT175AB

WDS:	STT175AB	WDS ID/Discoverer
P:	213.368	Orbital period (years)
a:	0.5554	Semi-major axis (arcseconds)
i:	91.788	Inclination (degrees)
Ω:	329.89	Longitude of ascending node (degrees)
T:	1979.665	Epoch of periastron passage (year)
e:	0.6756	Eccentricity
ω:	137.5	Longitude of periastron (degrees)
Start-Year:	1918.316	Year
End-Year:	2131.684	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT175AB
Position:	073508.79+305739.3	Epoch-2000 right ascension and declination
WDS-ID:	07351+3058	WDS designation
Discoverer Code:	STT175AB	Discover designation and components
ADS number:	6185	Aitken Double Star catalog
HD number:	60318	HD catalog number
Hipparcos number:	36896	Hipparcos catalog number
V1:	6.08	Magnitude of the primary
V2:	6.49	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2005	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:	Mut2010d	Reference

Double Star Orbit for STT175AB

WDS 6th Orbit including measures of STT175AB

-- 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 STT175AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.194   336.19
--------------------------
1918.32    0.757   330.56
1919.32    0.754   330.53
1920.32    0.751   330.51
1921.32    0.749   330.49
1922.32    0.745   330.47
1923.32    0.742   330.45
1924.32    0.738   330.43
1925.32    0.735   330.41
1926.32    0.730   330.38
1927.32    0.726   330.36
1928.32    0.721   330.34
1929.32    0.717   330.31
1930.32    0.711   330.29
1931.32    0.706   330.27
1932.32    0.700   330.24
1933.32    0.694   330.22
1934.32    0.688   330.19
1935.32    0.682   330.17
1936.32    0.675   330.14
1937.32    0.667   330.12
1938.32    0.660   330.09
1939.32    0.652   330.06
1940.32    0.644   330.03
1941.32    0.635   330.00
1942.32    0.626   329.97
1943.32    0.617   329.94
1944.32    0.607   329.91
1945.32    0.597   329.88
1946.32    0.587   329.84
1947.32    0.576   329.81
1948.32    0.565   329.77
1949.32    0.553   329.73
1950.32    0.540   329.69
1951.32    0.528   329.65
1952.32    0.514   329.61
1953.32    0.500   329.56
1954.32    0.486   329.51
1955.32    0.471   329.46
1956.32    0.455   329.40
1957.32    0.439   329.34
1958.32    0.422   329.28
1959.32    0.404   329.21
1960.32    0.386   329.13
1961.32    0.367   329.05
1962.32    0.347   328.95
1963.32    0.326   328.85
1964.32    0.304   328.72
1965.32    0.281   328.58
1966.32    0.258   328.42
1967.32    0.233   328.22
1968.32    0.207   327.97
1969.32    0.180   327.65
1970.32    0.152   327.21
1971.32    0.123   326.58
1972.32    0.093   325.53
1973.32    0.062   323.46
1974.32    0.031   317.13
1975.32    0.007   218.92
1976.32    0.035   159.76
1977.32    0.066   154.65
1978.32    0.096   152.78
1979.32    0.124   151.78
1980.32    0.148   151.13
1981.32    0.169   150.66
1982.32    0.186   150.28
1983.32    0.199   149.96
1984.32    0.208   149.67
1985.32    0.214   149.40
1986.32    0.217   149.15
1987.32    0.217   148.89
1988.32    0.216   148.64
1989.32    0.212   148.38
1990.32    0.208   148.11
1991.32    0.201   147.82
1992.32    0.194   147.51
1993.32    0.186   147.18
1994.32    0.178   146.82
1995.32    0.168   146.42
1996.32    0.159   145.97
1997.32    0.148   145.47
1998.32    0.138   144.88
1999.32    0.127   144.20
2000.32    0.116   143.39
2001.32    0.105   142.40
2002.32    0.093   141.18
2003.32    0.082   139.62
2004.32    0.071   137.55
2005.32    0.059   134.68
2006.32    0.048   130.44
2007.32    0.037   123.64
2008.32    0.027   111.49
2009.32    0.019    87.76
2010.32    0.018    50.01
2011.32    0.023    19.52
2012.32    0.033     3.55
2013.32    0.043   355.03
2014.32    0.054   349.94
2015.32    0.066   346.60
2016.32    0.077   344.25
2017.32    0.089   342.52
2018.32    0.101   341.18
2019.32    0.112   340.12
2020.32    0.124   339.26
2021.32    0.135   338.55
2022.32    0.147   337.95
2023.32    0.158   337.43
2024.32    0.170   336.98
2025.32    0.181   336.59
2026.32    0.192   336.25
2027.32    0.203   335.94
2028.32    0.214   335.67
2029.32    0.225   335.42
2030.32    0.236   335.20
2031.32    0.247   334.99
2032.32    0.258   334.80
2033.32    0.268   334.63
2034.32    0.279   334.47
2035.32    0.290   334.32
2036.32    0.300   334.18
2037.32    0.310   334.06
2038.32    0.320   333.93
2039.32    0.330   333.82
2040.32    0.340   333.72
2041.32    0.350   333.62
2042.32    0.360   333.52
2043.32    0.370   333.43
2044.32    0.380   333.35
2045.32    0.389   333.26
2046.32    0.398   333.19
2047.32    0.408   333.11
2048.32    0.417   333.04
2049.32    0.426   332.98
2050.32    0.435   332.91
2051.32    0.444   332.85
2052.32    0.453   332.79
2053.32    0.462   332.73
2054.32    0.470   332.68
2055.32    0.479   332.62
2056.32    0.487   332.57
2057.32    0.495   332.52
2058.32    0.503   332.47
2059.32    0.511   332.43
2060.32    0.519   332.38
2061.32    0.527   332.34
2062.32    0.535   332.30
2063.32    0.543   332.26
2064.32    0.550   332.22
2065.32    0.558   332.18
2066.32    0.565   332.14
2067.32    0.572   332.10
2068.32    0.579   332.07
2069.32    0.586   332.03
2070.32    0.593   332.00
2071.32    0.600   331.96
2072.32    0.606   331.93
2073.32    0.613   331.90
2074.32    0.619   331.87
2075.32    0.625   331.83
2076.32    0.631   331.80
2077.32    0.638   331.77
2078.32    0.643   331.75
2079.32    0.649   331.72
2080.32    0.655   331.69
2081.32    0.660   331.66
2082.32    0.666   331.63
2083.32    0.671   331.61
2084.32    0.676   331.58
2085.32    0.681   331.55
2086.32    0.686   331.53
2087.32    0.691   331.50
2088.32    0.696   331.48
2089.32    0.700   331.45
2090.32    0.705   331.43
2091.32    0.709   331.41
2092.32    0.713   331.38
2093.32    0.717   331.36
2094.32    0.721   331.34
2095.32    0.725   331.31
2096.32    0.728   331.29
2097.32    0.732   331.27
2098.32    0.735   331.25
2099.32    0.738   331.22
2100.32    0.741   331.20
2101.32    0.744   331.18
2102.32    0.747   331.16
2103.32    0.750   331.14
2104.32    0.752   331.12
2105.32    0.755   331.09
2106.32    0.757   331.07
2107.32    0.759   331.05
2108.32    0.761   331.03
2109.32    0.762   331.01
2110.32    0.764   330.99
2111.32    0.765   330.97
2112.32    0.767   330.95
2113.32    0.768   330.93
2114.32    0.769   330.91
2115.32    0.770   330.89
2116.32    0.770   330.87
2117.32    0.771   330.85
2118.32    0.771   330.83
2119.32    0.771   330.81
2120.32    0.771   330.79
2121.32    0.771   330.77
2122.32    0.770   330.75
2123.32    0.770   330.73
2124.32    0.769   330.71
2125.32    0.768   330.69
2126.32    0.766   330.67
2127.32    0.765   330.65
2128.32    0.764   330.63
2129.32    0.762   330.61
2130.32    0.760   330.58
2131.32    0.758   330.56

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 15:59:22