Double Star Calculator - Orbit

Orbital Elements for I674
WDS: I674 WDS ID/Discoverer
P: 301.000 Orbital period (years)
a: 0.5 Semi-major axis (arcseconds)
i: 59.7 Inclination (degrees)
Ω: 69.4 Longitude of ascending node (degrees)
T: 2007.870 Epoch of periastron passage (year)
e: 0.852 Eccentricity
ω: 44.5 Longitude of periastron (degrees)
Start-Year: 1874.5 Year
End-Year: 2175.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I674
Position: 220019.88-233003.2 Epoch-2000 right ascension and declination
WDS-ID: 22003-2330 WDS designation
Discoverer Code: I674 Discover designation and components
ADS number: 15526 Aitken Double Star catalog
HD number: 208955 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.7 Magnitude of the primary
V2: 9.9 Magnitude of the secondary
Equinox: Equinox
Date: 2018 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: Tok2019c Reference

Double Star Orbit for I674



WDS 6th Orbit including measures of I674

-- 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 I674
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.336   248.64
--------------------------
1874.50    0.707   278.36
1875.50    0.705   278.52
1876.50    0.703   278.68
1877.50    0.700   278.84
1878.50    0.698   279.00
1879.50    0.696   279.16
1880.50    0.693   279.33
1881.50    0.691   279.49
1882.50    0.688   279.66
1883.50    0.686   279.83
1884.50    0.683   279.99
1885.50    0.681   280.16
1886.50    0.678   280.34
1887.50    0.675   280.51
1888.50    0.672   280.68
1889.50    0.670   280.86
1890.50    0.667   281.03
1891.50    0.664   281.21
1892.50    0.661   281.39
1893.50    0.658   281.57
1894.50    0.655   281.76
1895.50    0.652   281.94
1896.50    0.649   282.13
1897.50    0.646   282.32
1898.50    0.643   282.51
1899.50    0.639   282.70
1900.50    0.636   282.89
1901.50    0.633   283.09
1902.50    0.629   283.29
1903.50    0.626   283.49
1904.50    0.622   283.69
1905.50    0.619   283.90
1906.50    0.615   284.10
1907.50    0.612   284.31
1908.50    0.608   284.53
1909.50    0.605   284.74
1910.50    0.601   284.96
1911.50    0.597   285.18
1912.50    0.593   285.40
1913.50    0.589   285.63
1914.50    0.585   285.86
1915.50    0.581   286.09
1916.50    0.577   286.32
1917.50    0.573   286.56
1918.50    0.569   286.80
1919.50    0.565   287.05
1920.50    0.561   287.30
1921.50    0.557   287.55
1922.50    0.553   287.81
1923.50    0.548   288.07
1924.50    0.544   288.33
1925.50    0.539   288.60
1926.50    0.535   288.88
1927.50    0.531   289.15
1928.50    0.526   289.44
1929.50    0.521   289.73
1930.50    0.517   290.02
1931.50    0.512   290.32
1932.50    0.507   290.62
1933.50    0.503   290.93
1934.50    0.498   291.25
1935.50    0.493   291.57
1936.50    0.488   291.90
1937.50    0.483   292.23
1938.50    0.478   292.58
1939.50    0.473   292.92
1940.50    0.468   293.28
1941.50    0.463   293.65
1942.50    0.457   294.02
1943.50    0.452   294.40
1944.50    0.447   294.79
1945.50    0.441   295.19
1946.50    0.436   295.60
1947.50    0.431   296.03
1948.50    0.425   296.46
1949.50    0.419   296.90
1950.50    0.414   297.35
1951.50    0.408   297.82
1952.50    0.403   298.30
1953.50    0.397   298.80
1954.50    0.391   299.31
1955.50    0.385   299.83
1956.50    0.379   300.37
1957.50    0.373   300.93
1958.50    0.367   301.51
1959.50    0.361   302.10
1960.50    0.355   302.72
1961.50    0.349   303.35
1962.50    0.343   304.01
1963.50    0.337   304.70
1964.50    0.330   305.41
1965.50    0.324   306.14
1966.50    0.318   306.91
1967.50    0.311   307.71
1968.50    0.305   308.54
1969.50    0.299   309.41
1970.50    0.292   310.31
1971.50    0.286   311.26
1972.50    0.279   312.25
1973.50    0.272   313.29
1974.50    0.266   314.38
1975.50    0.259   315.53
1976.50    0.253   316.73
1977.50    0.246   318.01
1978.50    0.239   319.35
1979.50    0.233   320.77
1980.50    0.226   322.27
1981.50    0.219   323.87
1982.50    0.213   325.56
1983.50    0.206   327.37
1984.50    0.199   329.29
1985.50    0.193   331.34
1986.50    0.187   333.54
1987.50    0.180   335.89
1988.50    0.174   338.41
1989.50    0.168   341.11
1990.50    0.162   344.02
1991.50    0.156   347.15
1992.50    0.151   350.50
1993.50    0.145   354.12
1994.50    0.140   357.99
1995.50    0.135     2.15
1996.50    0.131     6.61
1997.50    0.127    11.36
1998.50    0.123    16.43
1999.50    0.119    21.80
2000.50    0.116    27.50
2001.50    0.113    33.53
2002.50    0.109    39.93
2003.50    0.105    46.79
2004.50    0.100    54.30
2005.50    0.092    62.84
2006.50    0.081    73.35
2007.50    0.065    88.18
2008.50    0.049   113.19
2009.50    0.043   153.74
2010.50    0.055   189.46
2011.50    0.076   208.74
2012.50    0.099   219.28
2013.50    0.122   225.85
2014.50    0.143   230.37
2015.50    0.164   233.73
2016.50    0.183   236.36
2017.50    0.202   238.49
2018.50    0.220   240.27
2019.50    0.236   241.79
2020.50    0.252   243.11
2021.50    0.268   244.28
2022.50    0.282   245.32
2023.50    0.296   246.27
2024.50    0.310   247.13
2025.50    0.323   247.91
2026.50    0.336   248.64
2027.50    0.348   249.32
2028.50    0.360   249.95
2029.50    0.371   250.54
2030.50    0.382   251.10
2031.50    0.393   251.63
2032.50    0.403   252.12
2033.50    0.413   252.60
2034.50    0.423   253.05
2035.50    0.432   253.48
2036.50    0.442   253.90
2037.50    0.451   254.29
2038.50    0.459   254.68
2039.50    0.468   255.04
2040.50    0.476   255.40
2041.50    0.484   255.74
2042.50    0.492   256.07
2043.50    0.500   256.39
2044.50    0.507   256.70
2045.50    0.515   257.01
2046.50    0.522   257.30
2047.50    0.529   257.59
2048.50    0.535   257.87
2049.50    0.542   258.14
2050.50    0.549   258.40
2051.50    0.555   258.66
2052.50    0.561   258.92
2053.50    0.567   259.16
2054.50    0.573   259.41
2055.50    0.579   259.65
2056.50    0.584   259.88
2057.50    0.590   260.11
2058.50    0.595   260.33
2059.50    0.601   260.55
2060.50    0.606   260.77
2061.50    0.611   260.98
2062.50    0.616   261.19
2063.50    0.620   261.40
2064.50    0.625   261.60
2065.50    0.630   261.81
2066.50    0.634   262.00
2067.50    0.638   262.20
2068.50    0.643   262.39
2069.50    0.647   262.58
2070.50    0.651   262.77
2071.50    0.655   262.95
2072.50    0.659   263.14
2073.50    0.663   263.32
2074.50    0.666   263.50
2075.50    0.670   263.67
2076.50    0.673   263.85
2077.50    0.677   264.02
2078.50    0.680   264.19
2079.50    0.683   264.36
2080.50    0.686   264.53
2081.50    0.690   264.70
2082.50    0.693   264.86
2083.50    0.695   265.03
2084.50    0.698   265.19
2085.50    0.701   265.35
2086.50    0.704   265.51
2087.50    0.706   265.67
2088.50    0.709   265.83
2089.50    0.711   265.99
2090.50    0.714   266.14
2091.50    0.716   266.30
2092.50    0.718   266.45
2093.50    0.720   266.60
2094.50    0.723   266.75
2095.50    0.725   266.90
2096.50    0.727   267.05
2097.50    0.728   267.20
2098.50    0.730   267.35
2099.50    0.732   267.50
2100.50    0.734   267.65
2101.50    0.735   267.79
2102.50    0.737   267.94
2103.50    0.739   268.08
2104.50    0.740   268.23
2105.50    0.741   268.37
2106.50    0.743   268.52
2107.50    0.744   268.66
2108.50    0.745   268.80
2109.50    0.746   268.94
2110.50    0.747   269.08
2111.50    0.748   269.23
2112.50    0.749   269.37
2113.50    0.750   269.51
2114.50    0.751   269.65
2115.50    0.752   269.79
2116.50    0.753   269.93
2117.50    0.753   270.07
2118.50    0.754   270.21
2119.50    0.755   270.34
2120.50    0.755   270.48
2121.50    0.756   270.62
2122.50    0.756   270.76
2123.50    0.756   270.90
2124.50    0.757   271.04
2125.50    0.757   271.17
2126.50    0.757   271.31
2127.50    0.757   271.45
2128.50    0.757   271.59
2129.50    0.757   271.72
2130.50    0.757   271.86
2131.50    0.757   272.00
2132.50    0.757   272.14
2133.50    0.757   272.28
2134.50    0.757   272.41
2135.50    0.756   272.55
2136.50    0.756   272.69
2137.50    0.756   272.83
2138.50    0.755   272.97
2139.50    0.755   273.10
2140.50    0.754   273.24
2141.50    0.754   273.38
2142.50    0.753   273.52
2143.50    0.753   273.66
2144.50    0.752   273.80
2145.50    0.751   273.94
2146.50    0.750   274.08
2147.50    0.749   274.22
2148.50    0.749   274.36
2149.50    0.748   274.50
2150.50    0.747   274.64
2151.50    0.746   274.79
2152.50    0.745   274.93
2153.50    0.743   275.07
2154.50    0.742   275.21
2155.50    0.741   275.36
2156.50    0.740   275.50
2157.50    0.738   275.65
2158.50    0.737   275.79
2159.50    0.736   275.94
2160.50    0.734   276.08
2161.50    0.733   276.23
2162.50    0.731   276.38
2163.50    0.730   276.53
2164.50    0.728   276.67
2165.50    0.726   276.82
2166.50    0.724   276.97
2167.50    0.723   277.12
2168.50    0.721   277.28
2169.50    0.719   277.43
2170.50    0.717   277.58
2171.50    0.715   277.74
2172.50    0.713   277.89
2173.50    0.711   278.05
2174.50    0.709   278.20






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 18:35:10



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