Double Star Calculator - Orbit

Orbital Elements for HU380BC
WDS: HU380BC WDS ID/Discoverer
P: 116.610 Orbital period (years)
a: 0.315 Semi-major axis (arcseconds)
i: 128.0 Inclination (degrees)
Ω: 76.1 Longitude of ascending node (degrees)
T: 1949.620 Epoch of periastron passage (year)
e: 0.279 Eccentricity
ω: 14.8 Longitude of periastron (degrees)
Start-Year: 1966.695 Year
End-Year: 2083.305 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU380BC
Position: 215346.85-200023.7 Epoch-2000 right ascension and declination
WDS-ID: 21538-2000 WDS designation
Discoverer Code: HU380BC Discover designation and components
ADS number: 15419 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 108072 Hipparcos catalog number
V1: 10.34 Magnitude of the primary
V2: 10.56 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 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: Hrt2014b Reference

Double Star Orbit for HU380BC



WDS 6th Orbit including measures of HU380BC

-- 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 HU380BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.300   219.78
--------------------------
1966.69    0.176   333.06
1967.69    0.182   327.41
1968.69    0.189   322.15
1969.69    0.197   317.29
1970.69    0.206   312.82
1971.69    0.214   308.71
1972.69    0.224   304.93
1973.69    0.233   301.46
1974.69    0.243   298.26
1975.69    0.252   295.31
1976.69    0.262   292.57
1977.69    0.272   290.03
1978.69    0.281   287.65
1979.69    0.290   285.43
1980.69    0.299   283.34
1981.69    0.307   281.37
1982.69    0.316   279.50
1983.69    0.324   277.73
1984.69    0.331   276.04
1985.69    0.338   274.42
1986.69    0.345   272.88
1987.69    0.352   271.38
1988.69    0.358   269.95
1989.69    0.364   268.55
1990.69    0.369   267.20
1991.69    0.374   265.89
1992.69    0.378   264.61
1993.69    0.382   263.36
1994.69    0.386   262.13
1995.69    0.389   260.92
1996.69    0.392   259.73
1997.69    0.394   258.56
1998.69    0.396   257.40
1999.69    0.398   256.25
2000.69    0.399   255.11
2001.69    0.399   253.97
2002.69    0.400   252.84
2003.69    0.400   251.70
2004.69    0.399   250.57
2005.69    0.398   249.43
2006.69    0.397   248.28
2007.69    0.395   247.13
2008.69    0.393   245.96
2009.69    0.391   244.78
2010.69    0.388   243.59
2011.69    0.384   242.37
2012.69    0.381   241.13
2013.69    0.377   239.87
2014.69    0.373   238.58
2015.69    0.368   237.26
2016.69    0.363   235.91
2017.69    0.358   234.51
2018.69    0.352   233.08
2019.69    0.346   231.59
2020.69    0.340   230.05
2021.69    0.334   228.46
2022.69    0.327   226.80
2023.69    0.320   225.07
2024.69    0.313   223.26
2025.69    0.306   221.37
2026.69    0.298   219.39
2027.69    0.291   217.30
2028.69    0.283   215.10
2029.69    0.275   212.77
2030.69    0.267   210.32
2031.69    0.260   207.71
2032.69    0.252   204.94
2033.69    0.244   202.00
2034.69    0.237   198.87
2035.69    0.230   195.55
2036.69    0.223   192.01
2037.69    0.216   188.26
2038.69    0.210   184.28
2039.69    0.205   180.08
2040.69    0.200   175.66
2041.69    0.196   171.04
2042.69    0.193   166.24
2043.69    0.190   161.30
2044.69    0.188   156.24
2045.69    0.188   151.11
2046.69    0.188   145.96
2047.69    0.189   140.84
2048.69    0.190   135.80
2049.69    0.193   130.85
2050.69    0.196   126.04
2051.69    0.199   121.39
2052.69    0.203   116.91
2053.69    0.207   112.59
2054.69    0.211   108.43
2055.69    0.215   104.43
2056.69    0.218   100.57
2057.69    0.222    96.84
2058.69    0.225    93.21
2059.69    0.227    89.66
2060.69    0.229    86.18
2061.69    0.230    82.73
2062.69    0.230    79.30
2063.69    0.229    75.85
2064.69    0.227    72.36
2065.69    0.224    68.80
2066.69    0.221    65.15
2067.69    0.216    61.36
2068.69    0.211    57.40
2069.69    0.206    53.25
2070.69    0.200    48.85
2071.69    0.194    44.19
2072.69    0.188    39.22
2073.69    0.182    33.92
2074.69    0.177    28.28
2075.69    0.172    22.30
2076.69    0.168    16.03
2077.69    0.165     9.51
2078.69    0.164     2.82
2079.69    0.164   356.09
2080.69    0.166   349.42
2081.69    0.169   342.92
2082.69    0.173   336.70






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:34:00



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