Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:41:00

Orbital Elements for HU400
WDS: HU400 WDS ID/Discoverer
P: 173.660 Orbital period (years)
a: 0.409 Semi-major axis (arcseconds)
i: 130.8 Inclination (degrees)
Ω: 46.2 Longitude of ascending node (degrees)
T: 1881.160 Epoch of periastron passage (year)
e: 0.31 Eccentricity
ω: 76.3 Longitude of periastron (degrees)
Start-Year: 1939.0 Year
End-Year: 2111.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU400
Position: 231737.32+181817.5 Epoch-2000 right ascension and declination
WDS-ID: 23176+1818 WDS designation
Discoverer Code: HU400 Discover designation and components
ADS number: 16650 Aitken Double Star catalog
HD number: 219675 HD catalog number
Hipparcos number: 115011 Hipparcos catalog number
V1: 7.01 Magnitude of the primary
V2: 8.80 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2000 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HU400



WDS 6th Orbit including measures of HU400

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of HU400
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.371     60.5
-------------------------
1939.0     0.429    196.4
1940.0     0.428    195.3
1941.0     0.426    194.1
1942.0     0.425    192.9
1943.0     0.423    191.7
1944.0     0.421    190.5
1945.0     0.419    189.2
1946.0     0.417    188.0
1947.0     0.414    186.8
1948.0     0.412    185.5
1949.0     0.410    184.2
1950.0     0.407    182.9
1951.0     0.405    181.6
1952.0     0.402    180.3
1953.0     0.400    179.0
1954.0     0.397    177.6
1955.0     0.395    176.2
1956.0     0.392    174.9
1957.0     0.390    173.4
1958.0     0.387    172.0
1959.0     0.384    170.6
1960.0     0.382    169.1
1961.0     0.379    167.6
1962.0     0.377    166.1
1963.0     0.374    164.6
1964.0     0.372    163.0
1965.0     0.370    161.5
1966.0     0.367    159.9
1967.0     0.365    158.3
1968.0     0.363    156.6
1969.0     0.361    155.0
1970.0     0.359    153.3
1971.0     0.357    151.7
1972.0     0.355    150.0
1973.0     0.354    148.2
1974.0     0.352    146.5
1975.0     0.351    144.8
1976.0     0.349    143.0
1977.0     0.348    141.2
1978.0     0.347    139.5
1979.0     0.346    137.7
1980.0     0.346    135.9
1981.0     0.345    134.1
1982.0     0.344    132.3
1983.0     0.344    130.4
1984.0     0.344    128.6
1985.0     0.344    126.8
1986.0     0.344    125.0
1987.0     0.344    123.1
1988.0     0.344    121.3
1989.0     0.344    119.5
1990.0     0.345    117.7
1991.0     0.346    115.9
1992.0     0.346    114.1
1993.0     0.347    112.3
1994.0     0.348    110.5
1995.0     0.349    108.7
1996.0     0.350    107.0
1997.0     0.351    105.2
1998.0     0.353    103.5
1999.0     0.354    101.8
2000.0     0.355    100.0
2001.0     0.357     98.3
2002.0     0.358     96.7
2003.0     0.360     95.0
2004.0     0.361     93.3
2005.0     0.362     91.7
2006.0     0.364     90.0
2007.0     0.365     88.4
2008.0     0.367     86.8
2009.0     0.368     85.2
2010.0     0.369     83.6
2011.0     0.370     82.1
2012.0     0.372     80.5
2013.0     0.372     78.9
2014.0     0.373     77.4
2015.0     0.374     75.8
2016.0     0.375     74.3
2017.0     0.375     72.8
2018.0     0.375     71.2
2019.0     0.375     69.7
2020.0     0.375     68.2
2021.0     0.375     66.6
2022.0     0.374     65.1
2023.0     0.373     63.6
2024.0     0.372     62.0
2025.0     0.371     60.5
2026.0     0.369     58.9
2027.0     0.367     57.3
2028.0     0.364     55.7
2029.0     0.362     54.0
2030.0     0.359     52.4
2031.0     0.355     50.7
2032.0     0.351     49.0
2033.0     0.347     47.2
2034.0     0.342     45.4
2035.0     0.337     43.5
2036.0     0.332     41.6
2037.0     0.326     39.6
2038.0     0.319     37.5
2039.0     0.313     35.4
2040.0     0.306     33.1
2041.0     0.298     30.8
2042.0     0.290     28.3
2043.0     0.282     25.6
2044.0     0.274     22.8
2045.0     0.265     19.9
2046.0     0.256     16.7
2047.0     0.248     13.3
2048.0     0.239      9.7
2049.0     0.230      5.8
2050.0     0.222      1.5
2051.0     0.214    357.0
2052.0     0.207    352.1
2053.0     0.200    346.9
2054.0     0.195    341.4
2055.0     0.191    335.6
2056.0     0.187    329.6
2057.0     0.186    323.4
2058.0     0.186    317.1
2059.0     0.187    310.9
2060.0     0.190    304.8
2061.0     0.194    298.9
2062.0     0.199    293.3
2063.0     0.205    288.0
2064.0     0.213    283.1
2065.0     0.221    278.5
2066.0     0.229    274.2
2067.0     0.238    270.3
2068.0     0.247    266.6
2069.0     0.257    263.2
2070.0     0.267    260.1
2071.0     0.276    257.2
2072.0     0.286    254.4
2073.0     0.295    251.9
2074.0     0.304    249.5
2075.0     0.313    247.2
2076.0     0.322    245.1
2077.0     0.331    243.1
2078.0     0.339    241.1
2079.0     0.346    239.3
2080.0     0.354    237.6
2081.0     0.361    235.9
2082.0     0.368    234.2
2083.0     0.374    232.7
2084.0     0.380    231.2
2085.0     0.386    229.7
2086.0     0.392    228.3
2087.0     0.397    226.9
2088.0     0.401    225.5
2089.0     0.406    224.2
2090.0     0.410    222.9
2091.0     0.413    221.6
2092.0     0.417    220.4
2093.0     0.420    219.2
2094.0     0.423    218.0
2095.0     0.425    216.8
2096.0     0.427    215.6
2097.0     0.429    214.4
2098.0     0.431    213.2
2099.0     0.432    212.1
2100.0     0.433    210.9
2101.0     0.434    209.8
2102.0     0.435    208.6
2103.0     0.435    207.5
2104.0     0.435    206.4
2105.0     0.435    205.2
2106.0     0.435    204.1
2107.0     0.435    202.9
2108.0     0.434    201.8
2109.0     0.433    200.7
2110.0     0.433    199.5






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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