Double Star Calculator - Orbit

Orbital Elements for HU736
WDS: HU736 WDS ID/Discoverer
P: 245.470 Orbital period (years)
a: 0.305 Semi-major axis (arcseconds)
i: 153.4 Inclination (degrees)
Ω: 275.9 Longitude of ascending node (degrees)
T: 1949.770 Epoch of periastron passage (year)
e: 0.427 Eccentricity
ω: 314.7 Longitude of periastron (degrees)
Start-Year: 1902.265 Year
End-Year: 2147.735 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU736
Position: 121600.42+480658.4 Epoch-2000 right ascension and declination
WDS-ID: 12160+4807 WDS designation
Discoverer Code: HU736 Discover designation and components
ADS number: 8485 Aitken Double Star catalog
HD number: 106689 HD catalog number
Hipparcos number: 59820 Hipparcos catalog number
V1: 9.57 Magnitude of the primary
V2: 9.99 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1997 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: USN2006a Reference

Double Star Orbit for HU736



WDS 6th Orbit including measures of HU736

-- 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 HU736
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.351   172.00
--------------------------
1902.27    0.312    81.71
1903.27    0.308    80.56
1904.27    0.305    79.38
1905.27    0.301    78.18
1906.27    0.297    76.95
1907.27    0.293    75.68
1908.27    0.289    74.38
1909.27    0.285    73.05
1910.27    0.281    71.67
1911.27    0.277    70.26
1912.27    0.273    68.80
1913.27    0.269    67.30
1914.27    0.265    65.75
1915.27    0.261    64.16
1916.27    0.256    62.50
1917.27    0.252    60.79
1918.27    0.248    59.02
1919.27    0.243    57.19
1920.27    0.239    55.29
1921.27    0.234    53.32
1922.27    0.230    51.27
1923.27    0.225    49.14
1924.27    0.221    46.93
1925.27    0.217    44.63
1926.27    0.212    42.23
1927.27    0.208    39.74
1928.27    0.204    37.14
1929.27    0.200    34.44
1930.27    0.196    31.62
1931.27    0.192    28.69
1932.27    0.188    25.65
1933.27    0.185    22.48
1934.27    0.182    19.19
1935.27    0.178    15.79
1936.27    0.175    12.26
1937.27    0.173     8.63
1938.27    0.170     4.88
1939.27    0.168     1.04
1940.27    0.167   357.10
1941.27    0.165   353.09
1942.27    0.164   349.01
1943.27    0.163   344.89
1944.27    0.163   340.73
1945.27    0.163   336.56
1946.27    0.163   332.39
1947.27    0.163   328.24
1948.27    0.164   324.11
1949.27    0.165   320.04
1950.27    0.166   316.02
1951.27    0.168   312.07
1952.27    0.170   308.19
1953.27    0.172   304.40
1954.27    0.174   300.69
1955.27    0.176   297.08
1956.27    0.178   293.55
1957.27    0.180   290.12
1958.27    0.183   286.78
1959.27    0.185   283.52
1960.27    0.188   280.36
1961.27    0.191   277.28
1962.27    0.193   274.29
1963.27    0.196   271.37
1964.27    0.198   268.53
1965.27    0.201   265.77
1966.27    0.204   263.08
1967.27    0.206   260.46
1968.27    0.209   257.90
1969.27    0.212   255.41
1970.27    0.214   252.98
1971.27    0.217   250.61
1972.27    0.220   248.30
1973.27    0.222   246.04
1974.27    0.225   243.83
1975.27    0.227   241.67
1976.27    0.230   239.57
1977.27    0.233   237.51
1978.27    0.235   235.49
1979.27    0.238   233.52
1980.27    0.240   231.59
1981.27    0.243   229.70
1982.27    0.246   227.85
1983.27    0.248   226.04
1984.27    0.251   224.27
1985.27    0.253   222.53
1986.27    0.256   220.83
1987.27    0.258   219.16
1988.27    0.261   217.53
1989.27    0.264   215.93
1990.27    0.266   214.35
1991.27    0.269   212.81
1992.27    0.271   211.29
1993.27    0.274   209.81
1994.27    0.276   208.35
1995.27    0.279   206.92
1996.27    0.281   205.51
1997.27    0.284   204.13
1998.27    0.286   202.77
1999.27    0.289   201.43
2000.27    0.291   200.12
2001.27    0.294   198.83
2002.27    0.296   197.56
2003.27    0.299   196.32
2004.27    0.301   195.09
2005.27    0.303   193.88
2006.27    0.306   192.69
2007.27    0.308   191.52
2008.27    0.311   190.37
2009.27    0.313   189.24
2010.27    0.315   188.12
2011.27    0.318   187.02
2012.27    0.320   185.94
2013.27    0.322   184.87
2014.27    0.325   183.81
2015.27    0.327   182.78
2016.27    0.329   181.75
2017.27    0.331   180.74
2018.27    0.334   179.74
2019.27    0.336   178.76
2020.27    0.338   177.79
2021.27    0.340   176.83
2022.27    0.342   175.88
2023.27    0.344   174.95
2024.27    0.347   174.02
2025.27    0.349   173.11
2026.27    0.351   172.21
2027.27    0.353   171.31
2028.27    0.355   170.43
2029.27    0.357   169.56
2030.27    0.359   168.70
2031.27    0.361   167.84
2032.27    0.362   167.00
2033.27    0.364   166.17
2034.27    0.366   165.34
2035.27    0.368   164.52
2036.27    0.370   163.71
2037.27    0.371   162.91
2038.27    0.373   162.11
2039.27    0.375   161.32
2040.27    0.377   160.54
2041.27    0.378   159.77
2042.27    0.380   159.00
2043.27    0.381   158.24
2044.27    0.383   157.48
2045.27    0.384   156.73
2046.27    0.386   155.99
2047.27    0.387   155.25
2048.27    0.389   154.52
2049.27    0.390   153.79
2050.27    0.392   153.07
2051.27    0.393   152.35
2052.27    0.394   151.64
2053.27    0.395   150.93
2054.27    0.397   150.23
2055.27    0.398   149.53
2056.27    0.399   148.84
2057.27    0.400   148.15
2058.27    0.401   147.46
2059.27    0.402   146.78
2060.27    0.403   146.10
2061.27    0.404   145.42
2062.27    0.405   144.75
2063.27    0.406   144.07
2064.27    0.407   143.41
2065.27    0.408   142.74
2066.27    0.409   142.08
2067.27    0.409   141.42
2068.27    0.410   140.76
2069.27    0.411   140.11
2070.27    0.411   139.46
2071.27    0.412   138.80
2072.27    0.412   138.16
2073.27    0.413   137.51
2074.27    0.413   136.86
2075.27    0.414   136.22
2076.27    0.414   135.57
2077.27    0.415   134.93
2078.27    0.415   134.29
2079.27    0.415   133.65
2080.27    0.415   133.01
2081.27    0.416   132.37
2082.27    0.416   131.73
2083.27    0.416   131.10
2084.27    0.416   130.46
2085.27    0.416   129.82
2086.27    0.416   129.18
2087.27    0.416   128.54
2088.27    0.416   127.91
2089.27    0.415   127.27
2090.27    0.415   126.63
2091.27    0.415   125.99
2092.27    0.415   125.35
2093.27    0.414   124.70
2094.27    0.414   124.06
2095.27    0.413   123.42
2096.27    0.413   122.77
2097.27    0.412   122.12
2098.27    0.412   121.47
2099.27    0.411   120.82
2100.27    0.410   120.17
2101.27    0.410   119.51
2102.27    0.409   118.85
2103.27    0.408   118.19
2104.27    0.407   117.53
2105.27    0.406   116.86
2106.27    0.405   116.19
2107.27    0.404   115.52
2108.27    0.403   114.84
2109.27    0.402   114.16
2110.27    0.401   113.47
2111.27    0.399   112.78
2112.27    0.398   112.09
2113.27    0.397   111.39
2114.27    0.395   110.69
2115.27    0.394   109.98
2116.27    0.392   109.26
2117.27    0.391   108.54
2118.27    0.389   107.82
2119.27    0.387   107.08
2120.27    0.385   106.34
2121.27    0.383   105.60
2122.27    0.382   104.84
2123.27    0.380   104.08
2124.27    0.378   103.31
2125.27    0.376   102.54
2126.27    0.373   101.75
2127.27    0.371   100.95
2128.27    0.369   100.15
2129.27    0.367    99.33
2130.27    0.364    98.50
2131.27    0.362    97.67
2132.27    0.359    96.82
2133.27    0.357    95.96
2134.27    0.354    95.08
2135.27    0.351    94.20
2136.27    0.348    93.30
2137.27    0.346    92.38
2138.27    0.343    91.45
2139.27    0.340    90.50
2140.27    0.337    89.54
2141.27    0.334    88.56
2142.27    0.330    87.55
2143.27    0.327    86.53
2144.27    0.324    85.49
2145.27    0.321    84.43
2146.27    0.317    83.35
2147.27    0.314    82.24






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 16:44:55



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