Double Star Calculator - Orbit

Orbital Elements for HU1604

WDS:	HU1604	WDS ID/Discoverer
P:	215.200	Orbital period (years)
a:	0.355	Semi-major axis (arcseconds)
i:	56.0	Inclination (degrees)
Ω:	103.7	Longitude of ascending node (degrees)
T:	2055.340	Epoch of periastron passage (year)
e:	0.3	Eccentricity
ω:	15.6	Longitude of periastron (degrees)
Start-Year:	1917.4	Year
End-Year:	2132.6	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1604
Position:	121105.27-530217.2	Epoch-2000 right ascension and declination
WDS-ID:	12111-5302	WDS designation
Discoverer Code:	HU1604	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	105856	HD catalog number
Hipparcos number:	59395	Hipparcos catalog number
V1:	10.19	Magnitude of the primary
V2:	10.54	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	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:	Tok2023a	Reference

Double Star Orbit for HU1604

WDS 6th Orbit including measures of HU1604

-- 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 HU1604

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.203    53.72
--------------------------
1917.40    0.428   275.69
1918.40    0.431   276.30
1919.40    0.433   276.90
1920.40    0.436   277.50
1921.40    0.438   278.09
1922.40    0.441   278.67
1923.40    0.443   279.25
1924.40    0.445   279.82
1925.40    0.446   280.38
1926.40    0.448   280.95
1927.40    0.450   281.50
1928.40    0.451   282.06
1929.40    0.452   282.61
1930.40    0.453   283.16
1931.40    0.454   283.70
1932.40    0.455   284.25
1933.40    0.456   284.79
1934.40    0.456   285.33
1935.40    0.457   285.87
1936.40    0.457   286.41
1937.40    0.457   286.95
1938.40    0.457   287.49
1939.40    0.457   288.03
1940.40    0.456   288.56
1941.40    0.456   289.11
1942.40    0.455   289.65
1943.40    0.455   290.19
1944.40    0.454   290.74
1945.40    0.453   291.28
1946.40    0.452   291.83
1947.40    0.450   292.39
1948.40    0.449   292.94
1949.40    0.447   293.50
1950.40    0.446   294.07
1951.40    0.444   294.63
1952.40    0.442   295.21
1953.40    0.440   295.79
1954.40    0.438   296.37
1955.40    0.435   296.96
1956.40    0.433   297.56
1957.40    0.430   298.16
1958.40    0.428   298.77
1959.40    0.425   299.39
1960.40    0.422   300.01
1961.40    0.419   300.65
1962.40    0.416   301.30
1963.40    0.413   301.95
1964.40    0.409   302.62
1965.40    0.406   303.29
1966.40    0.402   303.98
1967.40    0.398   304.69
1968.40    0.395   305.40
1969.40    0.391   306.13
1970.40    0.387   306.87
1971.40    0.383   307.63
1972.40    0.378   308.41
1973.40    0.374   309.21
1974.40    0.370   310.02
1975.40    0.365   310.85
1976.40    0.361   311.70
1977.40    0.356   312.58
1978.40    0.351   313.48
1979.40    0.347   314.40
1980.40    0.342   315.35
1981.40    0.337   316.33
1982.40    0.332   317.33
1983.40    0.327   318.37
1984.40    0.322   319.44
1985.40    0.317   320.55
1986.40    0.311   321.69
1987.40    0.306   322.86
1988.40    0.301   324.08
1989.40    0.296   325.35
1990.40    0.291   326.65
1991.40    0.285   328.01
1992.40    0.280   329.42
1993.40    0.275   330.88
1994.40    0.270   332.39
1995.40    0.265   333.97
1996.40    0.259   335.61
1997.40    0.254   337.31
1998.40    0.250   339.08
1999.40    0.245   340.93
2000.40    0.240   342.84
2001.40    0.235   344.83
2002.40    0.231   346.90
2003.40    0.226   349.06
2004.40    0.222   351.29
2005.40    0.218   353.61
2006.40    0.215   356.01
2007.40    0.211   358.49
2008.40    0.208     1.06
2009.40    0.205     3.70
2010.40    0.202     6.42
2011.40    0.200     9.20
2012.40    0.198    12.06
2013.40    0.196    14.96
2014.40    0.194    17.92
2015.40    0.193    20.92
2016.40    0.193    23.94
2017.40    0.192    26.98
2018.40    0.192    30.03
2019.40    0.192    33.08
2020.40    0.193    36.10
2021.40    0.194    39.11
2022.40    0.195    42.08
2023.40    0.197    45.00
2024.40    0.199    47.88
2025.40    0.201    50.69
2026.40    0.203    53.45
2027.40    0.206    56.14
2028.40    0.208    58.77
2029.40    0.211    61.32
2030.40    0.214    63.81
2031.40    0.217    66.23
2032.40    0.220    68.59
2033.40    0.223    70.88
2034.40    0.226    73.10
2035.40    0.229    75.27
2036.40    0.232    77.39
2037.40    0.235    79.45
2038.40    0.238    81.46
2039.40    0.240    83.43
2040.40    0.242    85.36
2041.40    0.245    87.26
2042.40    0.246    89.12
2043.40    0.248    90.96
2044.40    0.249    92.78
2045.40    0.250    94.58
2046.40    0.251    96.37
2047.40    0.252    98.14
2048.40    0.252    99.92
2049.40    0.251   101.70
2050.40    0.251   103.48
2051.40    0.250   105.28
2052.40    0.248   107.09
2053.40    0.247   108.93
2054.40    0.245   110.79
2055.40    0.242   112.69
2056.40    0.239   114.63
2057.40    0.236   116.62
2058.40    0.233   118.66
2059.40    0.229   120.77
2060.40    0.225   122.94
2061.40    0.221   125.20
2062.40    0.217   127.54
2063.40    0.213   129.98
2064.40    0.208   132.52
2065.40    0.204   135.17
2066.40    0.199   137.94
2067.40    0.195   140.84
2068.40    0.190   143.88
2069.40    0.186   147.06
2070.40    0.182   150.38
2071.40    0.178   153.84
2072.40    0.175   157.44
2073.40    0.172   161.18
2074.40    0.169   165.04
2075.40    0.167   169.00
2076.40    0.166   173.05
2077.40    0.165   177.16
2078.40    0.165   181.31
2079.40    0.165   185.45
2080.40    0.166   189.58
2081.40    0.167   193.64
2082.40    0.169   197.62
2083.40    0.172   201.49
2084.40    0.175   205.24
2085.40    0.179   208.84
2086.40    0.183   212.29
2087.40    0.187   215.59
2088.40    0.192   218.72
2089.40    0.197   221.69
2090.40    0.203   224.51
2091.40    0.208   227.18
2092.40    0.214   229.70
2093.40    0.220   232.08
2094.40    0.226   234.34
2095.40    0.233   236.47
2096.40    0.239   238.49
2097.40    0.246   240.40
2098.40    0.252   242.22
2099.40    0.259   243.94
2100.40    0.265   245.58
2101.40    0.272   247.14
2102.40    0.278   248.62
2103.40    0.285   250.04
2104.40    0.291   251.39
2105.40    0.298   252.69
2106.40    0.304   253.93
2107.40    0.310   255.13
2108.40    0.316   256.27
2109.40    0.322   257.37
2110.40    0.328   258.43
2111.40    0.334   259.46
2112.40    0.340   260.45
2113.40    0.346   261.41
2114.40    0.351   262.33
2115.40    0.357   263.23
2116.40    0.362   264.10
2117.40    0.367   264.95
2118.40    0.372   265.77
2119.40    0.377   266.58
2120.40    0.381   267.36
2121.40    0.386   268.12
2122.40    0.391   268.87
2123.40    0.395   269.60
2124.40    0.399   270.31
2125.40    0.403   271.01
2126.40    0.407   271.70
2127.40    0.411   272.37
2128.40    0.414   273.03
2129.40    0.418   273.68
2130.40    0.421   274.32
2131.40    0.424   274.95
2132.40    0.427   275.57

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 16:44:01