Double Star Calculator - Orbit

Orbital Elements for HU280
WDS: HU280 WDS ID/Discoverer
P: 170.430 Orbital period (years)
a: 0.214 Semi-major axis (arcseconds)
i: 46.3 Inclination (degrees)
Ω: 315.1 Longitude of ascending node (degrees)
T: 1794.630 Epoch of periastron passage (year)
e: 0.054 Eccentricity
ω: 315.3 Longitude of periastron (degrees)
Start-Year: 1939.785 Year
End-Year: 2110.215 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU280
Position: 214218.45+055443.0 Epoch-2000 right ascension and declination
WDS-ID: 21423+0555 WDS designation
Discoverer Code: HU280 Discover designation and components
ADS number: 15236 Aitken Double Star catalog
HD number: 206512 HD catalog number
Hipparcos number: 107153 Hipparcos catalog number
V1: 8.33 Magnitude of the primary
V2: 8.50 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2000 Date of last observation
Orbit grade: 3 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 HU280



WDS 6th Orbit including measures of HU280

-- 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 HU280
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.153    44.57
--------------------------
1939.79    0.147   206.27
1940.79    0.146   209.37
1941.79    0.145   212.53
1942.79    0.144   215.74
1943.79    0.143   219.00
1944.79    0.142   222.28
1945.79    0.142   225.59
1946.79    0.142   228.90
1947.79    0.142   232.21
1948.79    0.143   235.50
1949.79    0.143   238.76
1950.79    0.144   241.99
1951.79    0.145   245.17
1952.79    0.147   248.30
1953.79    0.148   251.36
1954.79    0.150   254.35
1955.79    0.152   257.28
1956.79    0.154   260.12
1957.79    0.156   262.89
1958.79    0.159   265.58
1959.79    0.161   268.19
1960.79    0.164   270.73
1961.79    0.166   273.19
1962.79    0.169   275.57
1963.79    0.171   277.89
1964.79    0.174   280.13
1965.79    0.176   282.32
1966.79    0.179   284.44
1967.79    0.181   286.50
1968.79    0.183   288.51
1969.79    0.186   290.47
1970.79    0.188   292.38
1971.79    0.190   294.25
1972.79    0.192   296.07
1973.79    0.194   297.87
1974.79    0.196   299.62
1975.79    0.197   301.35
1976.79    0.199   303.05
1977.79    0.200   304.72
1978.79    0.202   306.38
1979.79    0.203   308.01
1980.79    0.204   309.63
1981.79    0.204   311.23
1982.79    0.205   312.83
1983.79    0.205   314.41
1984.79    0.206   315.99
1985.79    0.206   317.57
1986.79    0.206   319.15
1987.79    0.206   320.72
1988.79    0.205   322.31
1989.79    0.205   323.89
1990.79    0.204   325.49
1991.79    0.203   327.10
1992.79    0.202   328.72
1993.79    0.201   330.36
1994.79    0.200   332.01
1995.79    0.199   333.69
1996.79    0.197   335.39
1997.79    0.196   337.12
1998.79    0.194   338.87
1999.79    0.193   340.65
2000.79    0.191   342.47
2001.79    0.189   344.32
2002.79    0.187   346.21
2003.79    0.185   348.14
2004.79    0.183   350.11
2005.79    0.181   352.13
2006.79    0.179   354.19
2007.79    0.177   356.30
2008.79    0.175   358.46
2009.79    0.173     0.68
2010.79    0.171     2.94
2011.79    0.169     5.26
2012.79    0.167     7.64
2013.79    0.165    10.06
2014.79    0.163    12.54
2015.79    0.162    15.08
2016.79    0.160    17.66
2017.79    0.159    20.29
2018.79    0.157    22.96
2019.79    0.156    25.68
2020.79    0.155    28.43
2021.79    0.154    31.21
2022.79    0.154    34.02
2023.79    0.153    36.85
2024.79    0.153    39.69
2025.79    0.153    42.54
2026.79    0.153    45.38
2027.79    0.154    48.22
2028.79    0.154    51.04
2029.79    0.155    53.83
2030.79    0.156    56.60
2031.79    0.157    59.34
2032.79    0.158    62.04
2033.79    0.159    64.69
2034.79    0.161    67.30
2035.79    0.162    69.85
2036.79    0.164    72.35
2037.79    0.166    74.80
2038.79    0.168    77.19
2039.79    0.170    79.53
2040.79    0.172    81.80
2041.79    0.175    84.02
2042.79    0.177    86.18
2043.79    0.179    88.29
2044.79    0.181    90.35
2045.79    0.184    92.35
2046.79    0.186    94.30
2047.79    0.188    96.20
2048.78    0.191    98.06
2049.78    0.193    99.87
2050.78    0.195   101.64
2051.78    0.198   103.37
2052.78    0.200   105.06
2053.78    0.202   106.71
2054.78    0.204   108.33
2055.78    0.206   109.92
2056.78    0.208   111.48
2057.78    0.210   113.02
2058.78    0.211   114.52
2059.78    0.213   116.01
2060.78    0.214   117.47
2061.78    0.216   118.92
2062.78    0.217   120.34
2063.78    0.218   121.75
2064.78    0.219   123.15
2065.78    0.220   124.54
2066.78    0.221   125.91
2067.78    0.221   127.28
2068.78    0.222   128.64
2069.78    0.222   130.00
2070.78    0.222   131.35
2071.78    0.222   132.70
2072.78    0.222   134.05
2073.78    0.222   135.41
2074.78    0.221   136.77
2075.78    0.221   138.13
2076.78    0.220   139.50
2077.78    0.219   140.89
2078.78    0.218   142.28
2079.78    0.217   143.69
2080.78    0.216   145.11
2081.78    0.215   146.55
2082.78    0.213   148.01
2083.78    0.211   149.49
2084.78    0.210   151.00
2085.78    0.208   152.53
2086.78    0.206   154.10
2087.78    0.203   155.69
2088.78    0.201   157.32
2089.78    0.199   158.99
2090.78    0.196   160.70
2091.78    0.194   162.46
2092.78    0.191   164.26
2093.78    0.189   166.11
2094.78    0.186   168.01
2095.78    0.183   169.97
2096.78    0.180   171.99
2097.78    0.178   174.08
2098.78    0.175   176.23
2099.78    0.172   178.45
2100.78    0.169   180.74
2101.78    0.166   183.11
2102.78    0.164   185.56
2103.78    0.161   188.09
2104.78    0.159   190.70
2105.78    0.156   193.39
2106.78    0.154   196.17
2107.78    0.152   199.02
2108.78    0.150   201.95
2109.78    0.148   204.96






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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 18:28:48



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