Double Star Calculator - Orbit

Orbital Elements for STT34
WDS: STT34 WDS ID/Discoverer
P: 177.000 Orbital period (years)
a: 0.37 Semi-major axis (arcseconds)
i: 39.9 Inclination (degrees)
Ω: 1.9 Longitude of ascending node (degrees)
T: 1937.700 Epoch of periastron passage (year)
e: 0.84 Eccentricity
ω: 108.8 Longitude of periastron (degrees)
Start-Year: 1936.5 Year
End-Year: 2113.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT34
Position: 014953.05+805311.2 Epoch-2000 right ascension and declination
WDS-ID: 01499+8053 WDS designation
Discoverer Code: STT34 Discover designation and components
ADS number: 1411 Aitken Double Star catalog
HD number: 10648 HD catalog number
Hipparcos number: 8519 Hipparcos catalog number
V1: 7.58 Magnitude of the primary
V2: 8.12 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 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: Alz2023c Reference

Double Star Orbit for STT34



WDS 6th Orbit including measures of STT34

-- 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 STT34
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.541   295.95
--------------------------
1936.50    0.057    57.48
1937.50    0.046   105.11
1938.50    0.059   150.57
1939.50    0.079   175.77
1940.50    0.098   190.79
1941.50    0.114   201.12
1942.50    0.130   208.92
1943.50    0.144   215.13
1944.50    0.157   220.28
1945.50    0.169   224.66
1946.50    0.181   228.46
1947.50    0.192   231.81
1948.50    0.202   234.79
1949.50    0.212   237.49
1950.50    0.222   239.94
1951.50    0.232   242.19
1952.50    0.241   244.26
1953.50    0.250   246.19
1954.50    0.259   247.98
1955.50    0.267   249.65
1956.50    0.275   251.23
1957.50    0.283   252.71
1958.50    0.291   254.11
1959.50    0.299   255.44
1960.50    0.306   256.71
1961.50    0.314   257.92
1962.50    0.321   259.07
1963.50    0.328   260.17
1964.50    0.334   261.23
1965.50    0.341   262.25
1966.50    0.347   263.23
1967.50    0.354   264.17
1968.50    0.360   265.08
1969.50    0.366   265.96
1970.50    0.372   266.81
1971.50    0.378   267.64
1972.50    0.383   268.44
1973.50    0.389   269.22
1974.50    0.394   269.97
1975.50    0.399   270.71
1976.50    0.405   271.43
1977.50    0.410   272.12
1978.50    0.415   272.81
1979.50    0.419   273.47
1980.50    0.424   274.13
1981.50    0.429   274.76
1982.50    0.433   275.39
1983.50    0.438   276.00
1984.50    0.442   276.60
1985.50    0.446   277.19
1986.50    0.450   277.76
1987.50    0.454   278.33
1988.50    0.458   278.89
1989.50    0.462   279.43
1990.50    0.466   279.97
1991.50    0.469   280.50
1992.50    0.473   281.03
1993.50    0.476   281.54
1994.50    0.480   282.05
1995.50    0.483   282.55
1996.50    0.486   283.04
1997.50    0.489   283.53
1998.50    0.492   284.01
1999.50    0.495   284.49
2000.50    0.498   284.96
2001.50    0.500   285.42
2002.50    0.503   285.88
2003.50    0.506   286.34
2004.50    0.508   286.79
2005.50    0.510   287.24
2006.50    0.513   287.68
2007.50    0.515   288.12
2008.50    0.517   288.55
2009.50    0.519   288.99
2010.50    0.521   289.41
2011.50    0.523   289.84
2012.50    0.525   290.26
2013.50    0.526   290.68
2014.50    0.528   291.10
2015.50    0.530   291.51
2016.50    0.531   291.92
2017.50    0.532   292.33
2018.50    0.534   292.74
2019.50    0.535   293.15
2020.50    0.536   293.55
2021.50    0.537   293.96
2022.50    0.538   294.36
2023.50    0.539   294.76
2024.50    0.540   295.15
2025.50    0.540   295.55
2026.50    0.541   295.95
2027.50    0.542   296.34
2028.50    0.542   296.74
2029.50    0.542   297.13
2030.50    0.543   297.53
2031.50    0.543   297.92
2032.50    0.543   298.31
2033.50    0.543   298.71
2034.50    0.543   299.10
2035.50    0.543   299.49
2036.50    0.543   299.88
2037.50    0.542   300.28
2038.50    0.542   300.67
2039.50    0.542   301.07
2040.50    0.541   301.46
2041.50    0.540   301.86
2042.50    0.540   302.26
2043.50    0.539   302.66
2044.50    0.538   303.06
2045.50    0.537   303.46
2046.50    0.536   303.86
2047.50    0.534   304.27
2048.50    0.533   304.67
2049.50    0.532   305.08
2050.50    0.530   305.49
2051.50    0.529   305.91
2052.50    0.527   306.32
2053.50    0.525   306.74
2054.50    0.523   307.16
2055.50    0.521   307.59
2056.50    0.519   308.02
2057.50    0.517   308.45
2058.50    0.515   308.88
2059.50    0.512   309.32
2060.50    0.510   309.77
2061.50    0.507   310.22
2062.50    0.504   310.67
2063.50    0.501   311.13
2064.50    0.498   311.59
2065.50    0.495   312.06
2066.50    0.492   312.54
2067.50    0.489   313.02
2068.50    0.485   313.51
2069.50    0.481   314.01
2070.50    0.478   314.51
2071.50    0.474   315.02
2072.50    0.470   315.54
2073.50    0.466   316.07
2074.50    0.461   316.61
2075.50    0.457   317.16
2076.50    0.452   317.72
2077.50    0.447   318.30
2078.50    0.442   318.88
2079.50    0.437   319.48
2080.50    0.432   320.09
2081.50    0.427   320.72
2082.50    0.421   321.37
2083.50    0.415   322.03
2084.50    0.409   322.71
2085.50    0.403   323.42
2086.50    0.396   324.14
2087.50    0.390   324.89
2088.50    0.383   325.67
2089.50    0.376   326.47
2090.50    0.368   327.31
2091.50    0.361   328.18
2092.50    0.353   329.09
2093.50    0.345   330.05
2094.50    0.336   331.05
2095.50    0.327   332.10
2096.50    0.318   333.21
2097.50    0.308   334.39
2098.50    0.298   335.65
2099.50    0.288   337.00
2100.50    0.277   338.45
2101.50    0.266   340.03
2102.50    0.254   341.75
2103.50    0.241   343.64
2104.50    0.228   345.75
2105.50    0.214   348.13
2106.50    0.199   350.86
2107.50    0.182   354.06
2108.50    0.165   357.90
2109.50    0.147     2.68
2110.50    0.126     8.94
2111.50    0.104    17.76
2112.50    0.080    31.69






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 14:54:16



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