Double Star Calculator - Orbit

Orbital Elements for STF2576FG
WDS: STF2576FG WDS ID/Discoverer
P: 232.000 Orbital period (years)
a: 2.07 Semi-major axis (arcseconds)
i: 156.0 Inclination (degrees)
Ω: 91.0 Longitude of ascending node (degrees)
T: 1945.300 Epoch of periastron passage (year)
e: 0.77 Eccentricity
ω: 128.0 Longitude of periastron (degrees)
Start-Year: 1909.0 Year
End-Year: 2141.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2576FG
Position: 194533.53+333607.1 Epoch-2000 right ascension and declination
WDS-ID: 19464+3344 WDS designation
Discoverer Code: STF2576FG Discover designation and components
ADS number: 12889 Aitken Double Star catalog
HD number: 186858 HD catalog number
Hipparcos number: 97222 Hipparcos catalog number
V1: 8.47 Magnitude of the primary
V2: 8.58 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 2 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Sod1999 Reference

Double Star Orbit for STF2576FG



WDS 6th Orbit including measures of STF2576FG

-- 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 STF2576FG
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    3.198   152.36
--------------------------
1909.00    2.322   107.75
1910.00    2.286   107.02
1911.00    2.249   106.26
1912.00    2.211   105.48
1913.00    2.173   104.68
1914.00    2.133   103.84
1915.00    2.092   102.97
1916.00    2.051   102.07
1917.00    2.008   101.13
1918.00    1.965   100.15
1919.00    1.920    99.12
1920.00    1.874    98.04
1921.00    1.828    96.91
1922.00    1.779    95.72
1923.00    1.730    94.46
1924.00    1.679    93.13
1925.00    1.628    91.71
1926.00    1.574    90.20
1927.00    1.519    88.58
1928.00    1.463    86.83
1929.00    1.405    84.95
1930.00    1.346    82.90
1931.00    1.284    80.66
1932.00    1.221    78.19
1933.00    1.157    75.45
1934.00    1.090    72.37
1935.00    1.022    68.90
1936.00    0.952    64.91
1937.00    0.880    60.29
1938.00    0.808    54.84
1939.00    0.735    48.31
1940.00    0.663    40.36
1941.00    0.595    30.53
1942.00    0.533    18.28
1943.00    0.484     3.19
1944.00    0.454   345.44
1945.00    0.448   326.22
1946.00    0.465   307.49
1947.00    0.501   290.78
1948.00    0.548   276.63
1949.00    0.601   264.85
1950.00    0.658   255.05
1951.00    0.716   246.82
1952.00    0.774   239.83
1953.00    0.833   233.82
1954.00    0.891   228.60
1955.00    0.948   224.01
1956.00    1.004   219.93
1957.00    1.059   216.29
1958.00    1.113   213.00
1959.00    1.167   210.02
1960.00    1.219   207.29
1961.00    1.270   204.79
1962.00    1.321   202.48
1963.00    1.370   200.34
1964.00    1.419   198.35
1965.00    1.466   196.49
1966.00    1.513   194.74
1967.00    1.559   193.10
1968.00    1.604   191.55
1969.00    1.648   190.08
1970.00    1.691   188.69
1971.00    1.734   187.37
1972.00    1.776   186.11
1973.00    1.817   184.91
1974.00    1.857   183.76
1975.00    1.896   182.66
1976.00    1.935   181.60
1977.00    1.973   180.59
1978.00    2.011   179.61
1979.00    2.047   178.67
1980.00    2.084   177.76
1981.00    2.119   176.88
1982.00    2.154   176.04
1983.00    2.188   175.21
1984.00    2.222   174.42
1985.00    2.255   173.64
1986.00    2.287   172.89
1987.00    2.319   172.16
1988.00    2.351   171.45
1989.00    2.381   170.76
1990.00    2.412   170.08
1991.00    2.441   169.42
1992.00    2.471   168.78
1993.00    2.499   168.15
1994.00    2.527   167.54
1995.00    2.555   166.94
1996.00    2.582   166.35
1997.00    2.609   165.78
1998.00    2.635   165.21
1999.00    2.661   164.66
2000.00    2.686   164.12
2001.00    2.711   163.59
2002.00    2.735   163.06
2003.00    2.759   162.55
2004.00    2.782   162.05
2005.00    2.805   161.55
2006.00    2.828   161.06
2007.00    2.850   160.58
2008.00    2.871   160.11
2009.00    2.893   159.64
2010.00    2.913   159.18
2011.00    2.934   158.73
2012.00    2.954   158.28
2013.00    2.973   157.84
2014.00    2.992   157.40
2015.00    3.011   156.97
2016.00    3.030   156.55
2017.00    3.047   156.13
2018.00    3.065   155.71
2019.00    3.082   155.30
2020.00    3.099   154.90
2021.00    3.115   154.49
2022.00    3.131   154.10
2023.00    3.147   153.70
2024.00    3.162   153.31
2025.00    3.177   152.93
2026.00    3.191   152.55
2027.00    3.205   152.17
2028.00    3.219   151.79
2029.00    3.232   151.42
2030.00    3.245   151.05
2031.00    3.258   150.68
2032.00    3.270   150.32
2033.00    3.282   149.96
2034.00    3.294   149.60
2035.00    3.305   149.24
2036.00    3.315   148.89
2037.00    3.326   148.54
2038.00    3.336   148.19
2039.00    3.346   147.84
2040.00    3.355   147.50
2041.00    3.364   147.15
2042.00    3.373   146.81
2043.00    3.381   146.47
2044.00    3.389   146.13
2045.00    3.396   145.80
2046.00    3.404   145.46
2047.00    3.410   145.13
2048.00    3.417   144.80
2049.00    3.423   144.46
2050.00    3.429   144.13
2051.00    3.434   143.81
2052.00    3.440   143.48
2053.00    3.444   143.15
2054.00    3.449   142.82
2055.00    3.453   142.50
2056.00    3.457   142.17
2057.00    3.460   141.85
2058.00    3.463   141.53
2059.00    3.466   141.20
2060.00    3.468   140.88
2061.00    3.470   140.56
2062.00    3.472   140.24
2063.00    3.473   139.92
2064.00    3.474   139.59
2065.00    3.475   139.27
2066.00    3.475   138.95
2067.00    3.475   138.63
2068.00    3.474   138.31
2069.00    3.473   137.99
2070.00    3.472   137.67
2071.00    3.471   137.35
2072.00    3.469   137.02
2073.00    3.467   136.70
2074.00    3.464   136.38
2075.00    3.461   136.06
2076.00    3.458   135.73
2077.00    3.454   135.41
2078.00    3.450   135.08
2079.00    3.446   134.76
2080.00    3.441   134.43
2081.00    3.436   134.10
2082.00    3.430   133.77
2083.00    3.424   133.44
2084.00    3.418   133.11
2085.00    3.411   132.78
2086.00    3.404   132.45
2087.00    3.397   132.11
2088.00    3.389   131.77
2089.00    3.381   131.44
2090.00    3.372   131.10
2091.00    3.363   130.75
2092.00    3.354   130.41
2093.00    3.344   130.06
2094.00    3.334   129.72
2095.00    3.324   129.37
2096.00    3.313   129.02
2097.00    3.302   128.66
2098.00    3.290   128.30
2099.00    3.278   127.95
2100.00    3.265   127.58
2101.00    3.252   127.22
2102.00    3.239   126.85
2103.00    3.225   126.48
2104.00    3.211   126.10
2105.00    3.196   125.73
2106.00    3.181   125.35
2107.00    3.165   124.96
2108.00    3.149   124.57
2109.00    3.133   124.18
2110.00    3.116   123.78
2111.00    3.098   123.38
2112.00    3.080   122.97
2113.00    3.062   122.56
2114.00    3.043   122.15
2115.00    3.024   121.73
2116.00    3.004   121.30
2117.00    2.984   120.87
2118.00    2.963   120.43
2119.00    2.942   119.99
2120.00    2.920   119.53
2121.00    2.897   119.08
2122.00    2.874   118.61
2123.00    2.851   118.14
2124.00    2.827   117.66
2125.00    2.802   117.17
2126.00    2.777   116.67
2127.00    2.751   116.16
2128.00    2.725   115.65
2129.00    2.698   115.12
2130.00    2.670   114.58
2131.00    2.642   114.03
2132.00    2.613   113.47
2133.00    2.584   112.90
2134.00    2.554   112.31
2135.00    2.523   111.71
2136.00    2.491   111.09
2137.00    2.459   110.46
2138.00    2.426   109.81
2139.00    2.392   109.14
2140.00    2.358   108.45






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 18:08:08



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