Double Star Calculator - Orbit

Orbital Elements for STT156

WDS:	STT156	WDS ID/Discoverer
P:	205.300	Orbital period (years)
a:	0.45	Semi-major axis (arcseconds)
i:	150.5	Inclination (degrees)
Ω:	10.1	Longitude of ascending node (degrees)
T:	2017.760	Epoch of periastron passage (year)
e:	0.605	Eccentricity
ω:	258.9	Longitude of periastron (degrees)
Start-Year:	1922.35	Year
End-Year:	2127.65	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT156
Position:	064723.46+181136.4	Epoch-2000 right ascension and declination
WDS-ID:	06474+1812	WDS designation
Discoverer Code:	STT156	Discover designation and components
ADS number:	5447	Aitken Double Star catalog
HD number:	49059	HD catalog number
Hipparcos number:	32539	Hipparcos catalog number
V1:	6.61	Magnitude of the primary
V2:	8.04	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Pru2017	Reference

Double Star Orbit for STT156

WDS 6th Orbit including measures of STT156

-- 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 STT156

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.219    42.00
--------------------------
1922.35    0.628   288.32
1923.35    0.627   287.70
1924.35    0.626   287.07
1925.35    0.625   286.44
1926.35    0.624   285.81
1927.35    0.623   285.18
1928.35    0.621   284.54
1929.35    0.620   283.90
1930.35    0.619   283.26
1931.35    0.617   282.62
1932.35    0.616   281.97
1933.35    0.614   281.32
1934.35    0.613   280.66
1935.35    0.611   280.01
1936.35    0.609   279.34
1937.35    0.607   278.68
1938.35    0.605   278.01
1939.35    0.603   277.34
1940.35    0.601   276.66
1941.35    0.599   275.97
1942.35    0.597   275.29
1943.35    0.594   274.59
1944.35    0.592   273.89
1945.35    0.590   273.19
1946.35    0.587   272.48
1947.35    0.585   271.76
1948.35    0.582   271.04
1949.35    0.579   270.31
1950.35    0.576   269.57
1951.35    0.574   268.83
1952.35    0.571   268.07
1953.35    0.568   267.31
1954.35    0.564   266.55
1955.35    0.561   265.77
1956.35    0.558   264.98
1957.35    0.555   264.19
1958.35    0.551   263.38
1959.35    0.548   262.57
1960.35    0.544   261.74
1961.35    0.540   260.91
1962.35    0.537   260.06
1963.35    0.533   259.20
1964.35    0.529   258.32
1965.35    0.525   257.44
1966.35    0.521   256.54
1967.35    0.517   255.62
1968.35    0.512   254.69
1969.35    0.508   253.75
1970.35    0.503   252.78
1971.35    0.499   251.80
1972.35    0.494   250.81
1973.35    0.489   249.79
1974.35    0.485   248.75
1975.35    0.480   247.69
1976.35    0.475   246.61
1977.35    0.469   245.51
1978.35    0.464   244.38
1979.35    0.459   243.22
1980.35    0.453   242.04
1981.35    0.448   240.83
1982.35    0.442   239.58
1983.35    0.436   238.31
1984.35    0.430   236.99
1985.35    0.424   235.64
1986.35    0.418   234.25
1987.35    0.411   232.82
1988.35    0.405   231.34
1989.35    0.398   229.81
1990.35    0.391   228.23
1991.35    0.384   226.59
1992.35    0.377   224.89
1993.35    0.369   223.12
1994.35    0.362   221.28
1995.35    0.354   219.36
1996.35    0.346   217.35
1997.35    0.338   215.24
1998.35    0.330   213.04
1999.35    0.321   210.71
2000.35    0.312   208.26
2001.35    0.303   205.66
2002.35    0.294   202.90
2003.35    0.285   199.96
2004.35    0.275   196.81
2005.35    0.265   193.43
2006.35    0.255   189.78
2007.35    0.244   185.83
2008.35    0.234   181.52
2009.35    0.223   176.80
2010.35    0.212   171.61
2011.35    0.202   165.88
2012.35    0.192   159.52
2013.35    0.182   152.47
2014.35    0.173   144.66
2015.35    0.166   136.09
2016.35    0.160   126.80
2017.35    0.156   116.95
2018.35    0.155   106.79
2019.35    0.157    96.63
2020.35    0.160    86.81
2021.35    0.166    77.57
2022.35    0.174    69.08
2023.35    0.184    61.39
2024.35    0.194    54.49
2025.35    0.205    48.31
2026.35    0.217    42.78
2027.35    0.229    37.82
2028.35    0.240    33.34
2029.35    0.252    29.28
2030.35    0.264    25.58
2031.35    0.275    22.20
2032.35    0.287    19.08
2033.35    0.298    16.19
2034.35    0.308    13.51
2035.35    0.319    11.01
2036.35    0.329     8.67
2037.35    0.339     6.47
2038.35    0.349     4.39
2039.35    0.358     2.42
2040.35    0.367     0.55
2041.35    0.376   358.77
2042.35    0.385   357.07
2043.35    0.394   355.45
2044.35    0.402   353.89
2045.35    0.410   352.40
2046.35    0.417   350.96
2047.35    0.425   349.57
2048.35    0.432   348.23
2049.35    0.440   346.94
2050.35    0.446   345.69
2051.35    0.453   344.47
2052.35    0.460   343.29
2053.35    0.466   342.14
2054.35    0.472   341.02
2055.35    0.479   339.94
2056.35    0.484   338.87
2057.35    0.490   337.84
2058.35    0.496   336.83
2059.35    0.501   335.83
2060.35    0.506   334.87
2061.35    0.512   333.92
2062.35    0.517   332.99
2063.35    0.522   332.07
2064.35    0.526   331.18
2065.35    0.531   330.29
2066.35    0.535   329.43
2067.35    0.540   328.58
2068.35    0.544   327.74
2069.35    0.548   326.91
2070.35    0.552   326.10
2071.35    0.556   325.30
2072.35    0.560   324.51
2073.35    0.563   323.73
2074.35    0.567   322.96
2075.35    0.570   322.19
2076.35    0.574   321.44
2077.35    0.577   320.70
2078.35    0.580   319.96
2079.35    0.583   319.23
2080.35    0.586   318.51
2081.35    0.589   317.80
2082.35    0.591   317.09
2083.35    0.594   316.39
2084.35    0.596   315.70
2085.35    0.599   315.01
2086.35    0.601   314.32
2087.35    0.603   313.65
2088.35    0.606   312.97
2089.35    0.608   312.30
2090.35    0.610   311.64
2091.35    0.612   310.98
2092.35    0.613   310.33
2093.35    0.615   309.67
2094.35    0.617   309.02
2095.35    0.618   308.38
2096.35    0.620   307.74
2097.35    0.621   307.10
2098.35    0.623   306.46
2099.35    0.624   305.83
2100.35    0.625   305.20
2101.35    0.626   304.57
2102.35    0.627   303.94
2103.35    0.628   303.32
2104.35    0.629   302.69
2105.35    0.630   302.07
2106.35    0.630   301.45
2107.35    0.631   300.83
2108.35    0.631   300.22
2109.35    0.632   299.60
2110.35    0.632   298.98
2111.35    0.633   298.37
2112.35    0.633   297.75
2113.35    0.633   297.14
2114.35    0.633   296.52
2115.35    0.633   295.91
2116.35    0.633   295.30
2117.35    0.633   294.68
2118.35    0.633   294.07
2119.35    0.633   293.46
2120.35    0.632   292.84
2121.35    0.632   292.22
2122.35    0.632   291.61
2123.35    0.631   290.99
2124.35    0.630   290.37
2125.35    0.630   289.75
2126.35    0.629   289.13
2127.35    0.628   288.51

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 15:50:51