Double Star Calculator - Orbit

Orbital Elements for STF1423
WDS: STF1423 WDS ID/Discoverer
P: 258.000 Orbital period (years)
a: 1.01 Semi-major axis (arcseconds)
i: 145.0 Inclination (degrees)
Ω: 251.0 Longitude of ascending node (degrees)
T: 2039.000 Epoch of periastron passage (year)
e: 0.49 Eccentricity
ω: 19.0 Longitude of periastron (degrees)
Start-Year: 1896.0 Year
End-Year: 2154.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1423
Position: 101910.64+203348.1 Epoch-2000 right ascension and declination
WDS-ID: 10192+2034 WDS designation
Discoverer Code: STF1423 Discover designation and components
ADS number: 7721 Aitken Double Star catalog
HD number: 89376 HD catalog number
Hipparcos number: 50524 Hipparcos catalog number
V1: 9.40 Magnitude of the primary
V2: 10.08 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2002 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: WSI2004a Reference

Double Star Orbit for STF1423



WDS 6th Orbit including measures of STF1423

-- 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 STF1423
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.561   279.95
--------------------------
1896.00    1.482    61.72
1897.00    1.483    61.25
1898.00    1.484    60.79
1899.00    1.484    60.33
1900.00    1.485    59.87
1901.00    1.485    59.41
1902.00    1.485    58.95
1903.00    1.485    58.49
1904.00    1.484    58.03
1905.00    1.484    57.56
1906.00    1.483    57.10
1907.00    1.482    56.64
1908.00    1.481    56.18
1909.00    1.480    55.71
1910.00    1.478    55.25
1911.00    1.477    54.78
1912.00    1.475    54.32
1913.00    1.473    53.85
1914.00    1.471    53.38
1915.00    1.469    52.91
1916.00    1.467    52.44
1917.00    1.464    51.96
1918.00    1.461    51.49
1919.00    1.458    51.01
1920.00    1.455    50.53
1921.00    1.452    50.05
1922.00    1.449    49.57
1923.00    1.445    49.08
1924.00    1.441    48.60
1925.00    1.438    48.11
1926.00    1.434    47.61
1927.00    1.429    47.12
1928.00    1.425    46.62
1929.00    1.421    46.12
1930.00    1.416    45.61
1931.00    1.411    45.10
1932.00    1.406    44.59
1933.00    1.401    44.07
1934.00    1.396    43.55
1935.00    1.390    43.03
1936.00    1.385    42.50
1937.00    1.379    41.97
1938.00    1.373    41.43
1939.00    1.367    40.89
1940.00    1.361    40.34
1941.00    1.355    39.79
1942.00    1.348    39.24
1943.00    1.341    38.67
1944.00    1.335    38.11
1945.00    1.328    37.53
1946.00    1.321    36.95
1947.00    1.313    36.37
1948.00    1.306    35.78
1949.00    1.298    35.18
1950.00    1.291    34.57
1951.00    1.283    33.96
1952.00    1.275    33.33
1953.00    1.267    32.71
1954.00    1.259    32.07
1955.00    1.250    31.42
1956.00    1.242    30.77
1957.00    1.233    30.10
1958.00    1.224    29.43
1959.00    1.216    28.75
1960.00    1.206    28.05
1961.00    1.197    27.35
1962.00    1.188    26.64
1963.00    1.179    25.91
1964.00    1.169    25.17
1965.00    1.159    24.42
1966.00    1.150    23.66
1967.00    1.140    22.89
1968.00    1.130    22.10
1969.00    1.120    21.29
1970.00    1.109    20.47
1971.00    1.099    19.64
1972.00    1.089    18.79
1973.00    1.078    17.92
1974.00    1.067    17.04
1975.00    1.057    16.14
1976.00    1.046    15.22
1977.00    1.035    14.28
1978.00    1.024    13.32
1979.00    1.013    12.34
1980.00    1.002    11.34
1981.00    0.990    10.31
1982.00    0.979     9.27
1983.00    0.968     8.19
1984.00    0.956     7.09
1985.00    0.945     5.97
1986.00    0.933     4.82
1987.00    0.922     3.64
1988.00    0.910     2.42
1989.00    0.899     1.18
1990.00    0.887   359.91
1991.00    0.876   358.60
1992.00    0.864   357.25
1993.00    0.852   355.87
1994.00    0.841   354.46
1995.00    0.830   353.00
1996.00    0.818   351.50
1997.00    0.807   349.96
1998.00    0.795   348.38
1999.00    0.784   346.75
2000.00    0.773   345.07
2001.00    0.762   343.35
2002.00    0.751   341.57
2003.00    0.741   339.75
2004.00    0.730   337.87
2005.00    0.720   335.93
2006.00    0.710   333.95
2007.00    0.700   331.90
2008.00    0.690   329.79
2009.00    0.681   327.63
2010.00    0.671   325.41
2011.00    0.662   323.12
2012.00    0.654   320.77
2013.00    0.645   318.36
2014.00    0.637   315.89
2015.00    0.630   313.36
2016.00    0.622   310.76
2017.00    0.615   308.11
2018.00    0.608   305.39
2019.00    0.602   302.61
2020.00    0.595   299.77
2021.00    0.589   296.87
2022.00    0.584   293.92
2023.00    0.579   290.91
2024.00    0.573   287.85
2025.00    0.568   284.73
2026.00    0.564   281.56
2027.00    0.559   278.33
2028.00    0.555   275.06
2029.00    0.550   271.73
2030.00    0.546   268.34
2031.00    0.542   264.91
2032.00    0.537   261.41
2033.00    0.533   257.86
2034.00    0.528   254.25
2035.00    0.524   250.58
2036.00    0.519   246.85
2037.00    0.515   243.05
2038.00    0.510   239.18
2039.00    0.506   235.25
2040.00    0.502   231.25
2041.00    0.498   227.18
2042.00    0.494   223.04
2043.00    0.491   218.86
2044.00    0.488   214.62
2045.00    0.487   210.34
2046.00    0.485   206.03
2047.00    0.485   201.72
2048.00    0.486   197.40
2049.00    0.488   193.11
2050.00    0.490   188.86
2051.00    0.494   184.67
2052.00    0.499   180.55
2053.00    0.506   176.52
2054.00    0.513   172.60
2055.00    0.521   168.80
2056.00    0.530   165.12
2057.00    0.540   161.57
2058.00    0.551   158.16
2059.00    0.563   154.89
2060.00    0.576   151.75
2061.00    0.589   148.75
2062.00    0.602   145.88
2063.00    0.616   143.15
2064.00    0.631   140.53
2065.00    0.646   138.04
2066.00    0.661   135.66
2067.00    0.676   133.38
2068.00    0.692   131.21
2069.00    0.708   129.14
2070.00    0.724   127.15
2071.00    0.740   125.25
2072.00    0.756   123.44
2073.00    0.772   121.69
2074.00    0.788   120.02
2075.00    0.804   118.42
2076.00    0.820   116.87
2077.00    0.835   115.39
2078.00    0.851   113.96
2079.00    0.867   112.58
2080.00    0.882   111.25
2081.00    0.898   109.97
2082.00    0.913   108.73
2083.00    0.928   107.53
2084.00    0.943   106.37
2085.00    0.958   105.24
2086.00    0.972   104.15
2087.00    0.987   103.09
2088.00    1.001   102.06
2089.00    1.015   101.06
2090.00    1.029   100.09
2091.00    1.042    99.14
2092.00    1.056    98.22
2093.00    1.069    97.32
2094.00    1.082    96.44
2095.00    1.095    95.58
2096.00    1.107    94.74
2097.00    1.119    93.92
2098.00    1.132    93.12
2099.00    1.143    92.33
2100.00    1.155    91.56
2101.00    1.167    90.81
2102.00    1.178    90.07
2103.00    1.189    89.34
2104.00    1.200    88.63
2105.00    1.210    87.93
2106.00    1.221    87.24
2107.00    1.231    86.57
2108.00    1.241    85.90
2109.00    1.251    85.25
2110.00    1.260    84.60
2111.00    1.270    83.97
2112.00    1.279    83.34
2113.00    1.288    82.72
2114.00    1.296    82.11
2115.00    1.305    81.51
2116.00    1.313    80.92
2117.00    1.321    80.33
2118.00    1.329    79.76
2119.00    1.337    79.18
2120.00    1.344    78.62
2121.00    1.352    78.06
2122.00    1.359    77.51
2123.00    1.366    76.96
2124.00    1.372    76.42
2125.00    1.379    75.88
2126.00    1.385    75.35
2127.00    1.391    74.82
2128.00    1.397    74.29
2129.00    1.402    73.78
2130.00    1.408    73.26
2131.00    1.413    72.75
2132.00    1.418    72.24
2133.00    1.423    71.74
2134.00    1.428    71.24
2135.00    1.432    70.74
2136.00    1.437    70.25
2137.00    1.441    69.76
2138.00    1.445    69.27
2139.00    1.448    68.78
2140.00    1.452    68.30
2141.00    1.455    67.82
2142.00    1.459    67.34
2143.00    1.462    66.86
2144.00    1.464    66.39
2145.00    1.467    65.92
2146.00    1.469    65.44
2147.00    1.472    64.97
2148.00    1.474    64.51
2149.00    1.476    64.04
2150.00    1.477    63.57
2151.00    1.479    63.11
2152.00    1.480    62.64
2153.00    1.481    62.18






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 16:26:18



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