Double Star Calculator - Orbit

Orbital Elements for I234

WDS:	I234	WDS ID/Discoverer
P:	200.720	Orbital period (years)
a:	0.773	Semi-major axis (arcseconds)
i:	117.3	Inclination (degrees)
Ω:	165.9	Longitude of ascending node (degrees)
T:	2057.910	Epoch of periastron passage (year)
e:	0.725	Eccentricity
ω:	83.9	Longitude of periastron (degrees)
Start-Year:	1924.64	Year
End-Year:	2125.36	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I234
Position:	135706.59-273125.8	Epoch-2000 right ascension and declination
WDS-ID:	13571-2731	WDS designation
Discoverer Code:	I234	Discover designation and components
ADS number:	9064	Aitken Double Star catalog
HD number:	121632	HD catalog number
Hipparcos number:	68148	Hipparcos catalog number
V1:	8.61	Magnitude of the primary
V2:	9.67	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2015c	Reference

Double Star Orbit for I234

WDS 6th Orbit including measures of I234

-- 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 I234

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.560   201.67
--------------------------
1924.64    0.683   295.09
1925.64    0.681   294.37
1926.64    0.680   293.63
1927.64    0.678   292.90
1928.64    0.677   292.16
1929.64    0.675   291.42
1930.64    0.673   290.68
1931.64    0.672   289.93
1932.64    0.670   289.18
1933.64    0.668   288.42
1934.64    0.667   287.66
1935.64    0.665   286.90
1936.64    0.663   286.13
1937.64    0.661   285.35
1938.64    0.659   284.58
1939.64    0.657   283.80
1940.64    0.656   283.01
1941.64    0.654   282.22
1942.64    0.652   281.43
1943.64    0.650   280.63
1944.64    0.648   279.82
1945.64    0.646   279.02
1946.64    0.644   278.20
1947.64    0.642   277.38
1948.64    0.641   276.56
1949.64    0.639   275.73
1950.64    0.637   274.90
1951.64    0.635   274.06
1952.64    0.633   273.22
1953.64    0.631   272.37
1954.64    0.630   271.52
1955.64    0.628   270.67
1956.64    0.626   269.80
1957.64    0.624   268.94
1958.64    0.623   268.07
1959.64    0.621   267.19
1960.64    0.619   266.31
1961.64    0.618   265.43
1962.64    0.616   264.54
1963.64    0.614   263.64
1964.64    0.613   262.74
1965.64    0.611   261.84
1966.64    0.610   260.93
1967.64    0.608   260.02
1968.64    0.607   259.10
1969.64    0.606   258.18
1970.64    0.604   257.26
1971.64    0.603   256.33
1972.64    0.602   255.40
1973.64    0.601   254.46
1974.64    0.600   253.52
1975.64    0.598   252.58
1976.64    0.597   251.63
1977.64    0.596   250.68
1978.64    0.595   249.72
1979.64    0.594   248.77
1980.64    0.593   247.81
1981.64    0.593   246.85
1982.64    0.592   245.88
1983.64    0.591   244.91
1984.64    0.590   243.94
1985.64    0.589   242.97
1986.64    0.589   241.99
1987.64    0.588   241.01
1988.64    0.587   240.03
1989.64    0.587   239.05
1990.64    0.586   238.07
1991.64    0.586   237.08
1992.64    0.585   236.10
1993.64    0.585   235.11
1994.64    0.584   234.12
1995.64    0.584   233.13
1996.64    0.584   232.13
1997.64    0.583   231.14
1998.64    0.583   230.14
1999.64    0.583   229.15
2000.64    0.582   228.15
2001.64    0.582   227.15
2002.64    0.582   226.15
2003.64    0.581   225.15
2004.64    0.581   224.14
2005.64    0.581   223.14
2006.64    0.580   222.13
2007.64    0.580   221.13
2008.64    0.579   220.12
2009.64    0.579   219.11
2010.64    0.579   218.10
2011.64    0.578   217.09
2012.64    0.577   216.07
2013.64    0.577   215.06
2014.64    0.576   214.04
2015.64    0.575   213.02
2016.64    0.575   211.99
2017.64    0.574   210.97
2018.64    0.573   209.94
2019.64    0.572   208.90
2020.64    0.570   207.87
2021.64    0.569   206.82
2022.64    0.568   205.77
2023.64    0.566   204.72
2024.64    0.564   203.66
2025.64    0.562   202.59
2026.64    0.560   201.52
2027.64    0.557   200.43
2028.64    0.555   199.34
2029.64    0.552   198.23
2030.64    0.549   197.11
2031.64    0.545   195.98
2032.64    0.541   194.83
2033.64    0.537   193.67
2034.64    0.532   192.48
2035.64    0.527   191.28
2036.64    0.521   190.04
2037.64    0.515   188.78
2038.64    0.508   187.49
2039.64    0.501   186.16
2040.64    0.493   184.79
2041.64    0.483   183.37
2042.64    0.473   181.89
2043.64    0.462   180.34
2044.64    0.450   178.72
2045.64    0.436   176.99
2046.64    0.421   175.15
2047.64    0.404   173.17
2048.64    0.385   170.99
2049.64    0.364   168.58
2050.64    0.340   165.85
2051.64    0.313   162.67
2052.64    0.283   158.86
2053.64    0.249   154.05
2054.64    0.211   147.62
2055.64    0.171   138.27
2056.64    0.132   123.26
2057.64    0.104    97.92
2058.64    0.100    63.51
2059.64    0.125    35.60
2060.64    0.163    18.89
2061.64    0.205     8.76
2062.64    0.245     2.02
2063.64    0.282   357.13
2064.64    0.317   353.35
2065.64    0.348   350.28
2066.64    0.376   347.69
2067.64    0.402   345.46
2068.64    0.426   343.49
2069.64    0.448   341.72
2070.64    0.468   340.11
2071.64    0.486   338.62
2072.64    0.503   337.24
2073.64    0.519   335.94
2074.64    0.533   334.72
2075.64    0.546   333.55
2076.64    0.559   332.44
2077.64    0.570   331.38
2078.64    0.581   330.36
2079.64    0.591   329.37
2080.64    0.600   328.42
2081.64    0.608   327.49
2082.64    0.616   326.59
2083.64    0.623   325.71
2084.64    0.630   324.84
2085.64    0.637   324.00
2086.64    0.642   323.17
2087.64    0.648   322.36
2088.64    0.653   321.56
2089.64    0.657   320.77
2090.64    0.662   319.99
2091.64    0.666   319.22
2092.64    0.669   318.46
2093.64    0.673   317.71
2094.64    0.676   316.97
2095.64    0.678   316.23
2096.64    0.681   315.50
2097.64    0.683   314.77
2098.64    0.685   314.04
2099.64    0.687   313.32
2100.64    0.688   312.61
2101.64    0.690   311.90
2102.64    0.691   311.19
2103.64    0.692   310.48
2104.64    0.693   309.77
2105.64    0.694   309.07
2106.64    0.694   308.36
2107.64    0.694   307.66
2108.64    0.695   306.96
2109.64    0.695   306.26
2110.64    0.695   305.56
2111.64    0.695   304.85
2112.64    0.694   304.15
2113.64    0.694   303.45
2114.64    0.693   302.75
2115.64    0.693   302.04
2116.64    0.692   301.33
2117.64    0.691   300.63
2118.64    0.690   299.92
2119.64    0.689   299.21
2120.64    0.688   298.49
2121.64    0.687   297.78
2122.64    0.686   297.06
2123.64    0.685   296.34
2124.64    0.684   295.62

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 17:00:26