Double Star Calculator - Orbit

Orbital Elements for HU389
WDS: HU389 WDS ID/Discoverer
P: 186.000 Orbital period (years)
a: 0.2995 Semi-major axis (arcseconds)
i: 50.6 Inclination (degrees)
Ω: 122.5 Longitude of ascending node (degrees)
T: 2006.320 Epoch of periastron passage (year)
e: 0.417 Eccentricity
ω: 158.9 Longitude of periastron (degrees)
Start-Year: 1932.0 Year
End-Year: 2118.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU389
Position: 223410.47-184111.9 Epoch-2000 right ascension and declination
WDS-ID: 22342-1841 WDS designation
Discoverer Code: HU389 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 11406 Hipparcos catalog number
V1: 9.90 Magnitude of the primary
V2: 9.24 Magnitude of the secondary
Equinox: Equinox
Date: 2019 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: Tok2020e Reference

Double Star Orbit for HU389



WDS 6th Orbit including measures of HU389

-- 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 HU389
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.172   353.16
--------------------------
1932.00    0.411   119.70
1933.00    0.410   120.29
1934.00    0.409   120.89
1935.00    0.408   121.49
1936.00    0.406   122.10
1937.00    0.404   122.71
1938.00    0.403   123.32
1939.00    0.401   123.94
1940.00    0.399   124.57
1941.00    0.396   125.20
1942.00    0.394   125.85
1943.00    0.392   126.49
1944.00    0.389   127.15
1945.00    0.386   127.82
1946.00    0.383   128.50
1947.00    0.380   129.18
1948.00    0.377   129.88
1949.00    0.373   130.60
1950.00    0.370   131.32
1951.00    0.366   132.06
1952.00    0.362   132.82
1953.00    0.358   133.59
1954.00    0.354   134.38
1955.00    0.350   135.19
1956.00    0.345   136.02
1957.00    0.341   136.87
1958.00    0.336   137.75
1959.00    0.331   138.65
1960.00    0.326   139.58
1961.00    0.321   140.54
1962.00    0.315   141.53
1963.00    0.310   142.55
1964.00    0.304   143.62
1965.00    0.298   144.72
1966.00    0.292   145.88
1967.00    0.286   147.07
1968.00    0.280   148.33
1969.00    0.273   149.64
1970.00    0.267   151.01
1971.00    0.260   152.46
1972.00    0.253   153.98
1973.00    0.246   155.58
1974.00    0.240   157.28
1975.00    0.233   159.07
1976.00    0.226   160.98
1977.00    0.218   163.02
1978.00    0.211   165.19
1979.00    0.204   167.51
1980.00    0.197   170.00
1981.00    0.190   172.67
1982.00    0.183   175.55
1983.00    0.177   178.64
1984.00    0.170   181.98
1985.00    0.164   185.58
1986.00    0.158   189.46
1987.00    0.152   193.62
1988.00    0.147   198.08
1989.00    0.143   202.83
1990.00    0.139   207.87
1991.00    0.136   213.15
1992.00    0.134   218.64
1993.00    0.133   224.29
1994.00    0.132   230.02
1995.00    0.132   235.77
1996.00    0.133   241.46
1997.00    0.135   247.03
1998.00    0.138   252.42
1999.00    0.141   257.61
2000.00    0.144   262.56
2001.00    0.148   267.28
2002.00    0.152   271.76
2003.00    0.155   276.01
2004.00    0.159   280.06
2005.00    0.163   283.91
2006.00    0.167   287.59
2007.00    0.170   291.13
2008.00    0.173   294.54
2009.00    0.175   297.85
2010.00    0.177   301.07
2011.00    0.179   304.22
2012.00    0.180   307.33
2013.00    0.181   310.40
2014.00    0.181   313.44
2015.00    0.182   316.48
2016.00    0.181   319.52
2017.00    0.181   322.58
2018.00    0.180   325.65
2019.00    0.179   328.75
2020.00    0.178   331.89
2021.00    0.177   335.05
2022.00    0.176   338.26
2023.00    0.175   341.51
2024.00    0.174   344.80
2025.00    0.173   348.12
2026.00    0.172   351.48
2027.00    0.172   354.86
2028.00    0.172   358.25
2029.00    0.171     1.66
2030.00    0.172     5.06
2031.00    0.172     8.45
2032.00    0.173    11.82
2033.00    0.174    15.16
2034.00    0.175    18.45
2035.00    0.177    21.68
2036.00    0.179    24.86
2037.00    0.181    27.95
2038.00    0.183    30.97
2039.00    0.186    33.91
2040.00    0.189    36.75
2041.00    0.192    39.51
2042.00    0.196    42.17
2043.00    0.199    44.73
2044.00    0.203    47.20
2045.00    0.207    49.58
2046.00    0.211    51.87
2047.00    0.216    54.07
2048.00    0.220    56.18
2049.00    0.224    58.21
2050.00    0.229    60.16
2051.00    0.234    62.03
2052.00    0.238    63.83
2053.00    0.243    65.56
2054.00    0.248    67.22
2055.00    0.253    68.83
2056.00    0.257    70.37
2057.00    0.262    71.85
2058.00    0.267    73.28
2059.00    0.272    74.66
2060.00    0.277    76.00
2061.00    0.281    77.28
2062.00    0.286    78.53
2063.00    0.291    79.73
2064.00    0.295    80.90
2065.00    0.300    82.03
2066.00    0.304    83.13
2067.00    0.309    84.19
2068.00    0.313    85.23
2069.00    0.318    86.23
2070.00    0.322    87.21
2071.00    0.326    88.17
2072.00    0.330    89.10
2073.00    0.334    90.00
2074.00    0.338    90.89
2075.00    0.342    91.75
2076.00    0.346    92.60
2077.00    0.350    93.42
2078.00    0.354    94.23
2079.00    0.357    95.02
2080.00    0.361    95.80
2081.00    0.364    96.56
2082.00    0.367    97.31
2083.00    0.371    98.05
2084.00    0.374    98.77
2085.00    0.377    99.48
2086.00    0.380   100.19
2087.00    0.382   100.88
2088.00    0.385   101.56
2089.00    0.388   102.23
2090.00    0.390   102.89
2091.00    0.392   103.54
2092.00    0.395   104.19
2093.00    0.397   104.83
2094.00    0.399   105.46
2095.00    0.401   106.09
2096.00    0.402   106.71
2097.00    0.404   107.33
2098.00    0.406   107.94
2099.00    0.407   108.54
2100.00    0.409   109.15
2101.00    0.410   109.75
2102.00    0.411   110.34
2103.00    0.412   110.93
2104.00    0.413   111.52
2105.00    0.413   112.11
2106.00    0.414   112.69
2107.00    0.414   113.28
2108.00    0.415   113.86
2109.00    0.415   114.44
2110.00    0.415   115.02
2111.00    0.415   115.60
2112.00    0.415   116.19
2113.00    0.415   116.77
2114.00    0.414   117.35
2115.00    0.414   117.93
2116.00    0.413   118.52
2117.00    0.412   119.11






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 18:41:36



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