Double Star Calculator - Orbit

Orbital Elements for STT42AB
WDS: STT42AB WDS ID/Discoverer
P: 297.720 Orbital period (years)
a: 0.295 Semi-major axis (arcseconds)
i: 80.3 Inclination (degrees)
Ω: 96.1 Longitude of ascending node (degrees)
T: 1985.660 Epoch of periastron passage (year)
e: 0.353 Eccentricity
ω: 222.4 Longitude of periastron (degrees)
Start-Year: 1876.1399999999999 Year
End-Year: 2173.86 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT42AB
Position: 023318.90+521832.3 Epoch-2000 right ascension and declination
WDS-ID: 02333+5219 WDS designation
Discoverer Code: STT42AB Discover designation and components
ADS number: 1938 Aitken Double Star catalog
HD number: 15703 HD catalog number
Hipparcos number: 11889 Hipparcos catalog number
V1: 7.11 Magnitude of the primary
V2: 8.03 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1996 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: Cve2006e Reference

Double Star Orbit for STT42AB



WDS 6th Orbit including measures of STT42AB

-- 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 STT42AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.172    85.18
--------------------------
1876.14    0.157   118.28
1877.14    0.152   118.98
1878.14    0.148   119.71
1879.14    0.144   120.49
1880.14    0.140   121.31
1881.14    0.136   122.19
1882.14    0.131   123.12
1883.14    0.127   124.11
1884.14    0.123   125.17
1885.14    0.119   126.31
1886.14    0.115   127.52
1887.14    0.111   128.83
1888.14    0.107   130.24
1889.14    0.103   131.76
1890.14    0.099   133.40
1891.14    0.095   135.18
1892.14    0.091   137.11
1893.14    0.087   139.20
1894.14    0.083   141.49
1895.14    0.080   143.97
1896.14    0.077   146.68
1897.14    0.073   149.64
1898.14    0.070   152.85
1899.14    0.068   156.34
1900.14    0.065   160.11
1901.14    0.063   164.18
1902.14    0.061   168.52
1903.14    0.059   173.11
1904.14    0.058   177.92
1905.14    0.057   182.90
1906.14    0.057   187.98
1907.14    0.057   193.08
1908.14    0.058   198.13
1909.14    0.059   203.05
1910.14    0.060   207.78
1911.14    0.062   212.28
1912.14    0.064   216.51
1913.14    0.066   220.47
1914.14    0.069   224.13
1915.14    0.071   227.51
1916.14    0.075   230.63
1917.14    0.078   233.49
1918.14    0.081   236.12
1919.14    0.085   238.53
1920.14    0.088   240.75
1921.14    0.092   242.80
1922.14    0.096   244.68
1923.14    0.100   246.42
1924.14    0.104   248.02
1925.14    0.107   249.52
1926.14    0.111   250.90
1927.14    0.115   252.19
1928.14    0.119   253.40
1929.14    0.123   254.53
1930.14    0.127   255.58
1931.14    0.131   256.58
1932.14    0.135   257.52
1933.14    0.139   258.40
1934.14    0.143   259.24
1935.14    0.147   260.03
1936.14    0.150   260.78
1937.14    0.154   261.50
1938.14    0.158   262.19
1939.14    0.161   262.84
1940.14    0.165   263.47
1941.14    0.168   264.07
1942.14    0.171   264.64
1943.14    0.174   265.20
1944.14    0.178   265.73
1945.14    0.181   266.25
1946.14    0.184   266.75
1947.14    0.186   267.24
1948.14    0.189   267.71
1949.14    0.191   268.17
1950.14    0.194   268.61
1951.14    0.196   269.05
1952.14    0.198   269.47
1953.14    0.200   269.89
1954.14    0.202   270.30
1955.14    0.204   270.71
1956.14    0.205   271.10
1957.14    0.206   271.49
1958.14    0.207   271.88
1959.14    0.208   272.27
1960.14    0.209   272.65
1961.14    0.210   273.02
1962.14    0.210   273.40
1963.14    0.210   273.78
1964.14    0.210   274.16
1965.14    0.209   274.53
1966.14    0.208   274.92
1967.14    0.208   275.30
1968.14    0.206   275.69
1969.14    0.205   276.08
1970.14    0.203   276.48
1971.14    0.201   276.88
1972.14    0.199   277.30
1973.14    0.197   277.72
1974.14    0.194   278.16
1975.14    0.191   278.60
1976.14    0.187   279.07
1977.14    0.184   279.55
1978.14    0.180   280.05
1979.14    0.176   280.58
1980.14    0.171   281.13
1981.14    0.167   281.71
1982.14    0.162   282.32
1983.14    0.157   282.98
1984.14    0.151   283.68
1985.14    0.146   284.43
1986.14    0.140   285.25
1987.14    0.134   286.13
1988.14    0.128   287.11
1989.14    0.121   288.18
1990.14    0.115   289.37
1991.14    0.108   290.71
1992.14    0.101   292.23
1993.14    0.094   293.97
1994.14    0.087   295.97
1995.14    0.081   298.33
1996.14    0.074   301.12
1997.14    0.067   304.48
1998.14    0.060   308.58
1999.14    0.054   313.66
2000.14    0.048   320.02
2001.14    0.043   328.00
2002.14    0.039   337.90
2003.14    0.036   349.73
2004.14    0.035     2.88
2005.14    0.036    16.15
2006.14    0.038    28.26
2007.14    0.042    38.49
2008.14    0.047    46.78
2009.14    0.053    53.38
2010.14    0.059    58.64
2011.14    0.066    62.88
2012.14    0.073    66.33
2013.14    0.080    69.19
2014.14    0.087    71.59
2015.14    0.094    73.62
2016.14    0.101    75.37
2017.14    0.108    76.89
2018.14    0.115    78.22
2019.14    0.122    79.40
2020.14    0.129    80.45
2021.14    0.136    81.39
2022.14    0.143    82.24
2023.14    0.150    83.02
2024.14    0.156    83.73
2025.14    0.163    84.38
2026.14    0.169    84.98
2027.14    0.176    85.54
2028.14    0.182    86.05
2029.14    0.188    86.54
2030.14    0.194    86.99
2031.14    0.200    87.42
2032.14    0.206    87.82
2033.14    0.212    88.20
2034.14    0.217    88.56
2035.14    0.223    88.90
2036.14    0.228    89.23
2037.14    0.234    89.54
2038.14    0.239    89.84
2039.14    0.244    90.12
2040.14    0.249    90.39
2041.14    0.254    90.66
2042.14    0.258    90.91
2043.14    0.263    91.15
2044.14    0.267    91.39
2045.14    0.272    91.62
2046.14    0.276    91.84
2047.14    0.280    92.05
2048.14    0.284    92.26
2049.14    0.288    92.46
2050.14    0.292    92.66
2051.14    0.296    92.85
2052.14    0.299    93.04
2053.14    0.303    93.22
2054.14    0.306    93.40
2055.14    0.310    93.58
2056.14    0.313    93.75
2057.14    0.316    93.92
2058.14    0.319    94.08
2059.14    0.322    94.24
2060.14    0.324    94.40
2061.14    0.327    94.56
2062.14    0.330    94.71
2063.14    0.332    94.87
2064.14    0.334    95.01
2065.14    0.337    95.16
2066.14    0.339    95.31
2067.14    0.341    95.45
2068.14    0.343    95.59
2069.14    0.345    95.73
2070.14    0.347    95.87
2071.14    0.348    96.01
2072.14    0.350    96.15
2073.14    0.351    96.28
2074.14    0.353    96.41
2075.14    0.354    96.55
2076.14    0.355    96.68
2077.14    0.356    96.81
2078.14    0.358    96.94
2079.14    0.358    97.07
2080.14    0.359    97.20
2081.14    0.360    97.33
2082.14    0.361    97.45
2083.14    0.362    97.58
2084.14    0.362    97.71
2085.14    0.363    97.83
2086.14    0.363    97.96
2087.14    0.363    98.09
2088.14    0.364    98.21
2089.14    0.364    98.34
2090.14    0.364    98.46
2091.14    0.364    98.59
2092.14    0.364    98.71
2093.14    0.363    98.84
2094.14    0.363    98.96
2095.14    0.363    99.09
2096.14    0.363    99.22
2097.14    0.362    99.34
2098.14    0.362    99.47
2099.14    0.361    99.60
2100.14    0.360    99.72
2101.14    0.360    99.85
2102.14    0.359    99.98
2103.14    0.358   100.11
2104.14    0.357   100.24
2105.14    0.356   100.37
2106.14    0.355   100.50
2107.14    0.354   100.63
2108.14    0.352   100.77
2109.14    0.351   100.90
2110.14    0.350   101.04
2111.14    0.348   101.17
2112.14    0.347   101.31
2113.14    0.345   101.45
2114.14    0.344   101.59
2115.14    0.342   101.73
2116.14    0.340   101.87
2117.14    0.339   102.02
2118.14    0.337   102.16
2119.14    0.335   102.31
2120.14    0.333   102.46
2121.14    0.331   102.61
2122.14    0.329   102.76
2123.14    0.327   102.91
2124.14    0.324   103.07
2125.14    0.322   103.23
2126.14    0.320   103.39
2127.14    0.317   103.55
2128.14    0.315   103.72
2129.14    0.312   103.89
2130.14    0.310   104.06
2131.14    0.307   104.23
2132.14    0.305   104.41
2133.14    0.302   104.59
2134.14    0.299   104.78
2135.14    0.296   104.96
2136.14    0.294   105.15
2137.14    0.291   105.35
2138.14    0.288   105.55
2139.14    0.285   105.75
2140.14    0.282   105.96
2141.14    0.279   106.17
2142.14    0.276   106.38
2143.14    0.272   106.60
2144.14    0.269   106.83
2145.14    0.266   107.06
2146.14    0.263   107.30
2147.14    0.259   107.54
2148.14    0.256   107.79
2149.14    0.252   108.05
2150.14    0.249   108.31
2151.14    0.245   108.59
2152.14    0.242   108.87
2153.14    0.238   109.15
2154.14    0.235   109.45
2155.14    0.231   109.76
2156.14    0.227   110.07
2157.14    0.223   110.40
2158.14    0.220   110.74
2159.14    0.216   111.09
2160.14    0.212   111.45
2161.14    0.208   111.83
2162.14    0.204   112.22
2163.14    0.200   112.62
2164.14    0.196   113.04
2165.14    0.192   113.48
2166.14    0.188   113.94
2167.14    0.184   114.42
2168.14    0.180   114.92
2169.14    0.176   115.44
2170.14    0.172   115.99
2171.14    0.168   116.56
2172.14    0.164   117.17
2173.14    0.160   117.80






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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 15:01:28



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