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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:30:04

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: 1967.0 Year
End-Year: 2083.0 Year
Epoch: 2025.0 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' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HU380BC



WDS 6th Orbit including measures of HU380BC

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


Ephemeris of HU380BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.311    222.7
-------------------------
1967.0     0.178    331.3
1968.0     0.184    325.8
1969.0     0.192    320.6
1970.0     0.200    315.9
1971.0     0.208    311.5
1972.0     0.217    307.5
1973.0     0.227    303.8
1974.0     0.236    300.5
1975.0     0.246    297.3
1976.0     0.255    294.5
1977.0     0.265    291.8
1978.0     0.274    289.3
1979.0     0.284    287.0
1980.0     0.293    284.8
1981.0     0.301    282.7
1982.0     0.310    280.8
1983.0     0.318    279.0
1984.0     0.326    277.2
1985.0     0.333    275.5
1986.0     0.341    273.9
1987.0     0.347    272.4
1988.0     0.354    270.9
1989.0     0.360    269.5
1990.0     0.365    268.1
1991.0     0.370    266.8
1992.0     0.375    265.5
1993.0     0.379    264.2
1994.0     0.383    263.0
1995.0     0.387    261.8
1996.0     0.390    260.6
1997.0     0.393    259.4
1998.0     0.395    258.2
1999.0     0.397    257.1
2000.0     0.398    255.9
2001.0     0.399    254.8
2002.0     0.400    253.6
2003.0     0.400    252.5
2004.0     0.399    251.4
2005.0     0.399    250.2
2006.0     0.398    249.1
2007.0     0.396    247.9
2008.0     0.394    246.8
2009.0     0.392    245.6
2010.0     0.390    244.4
2011.0     0.387    243.2
2012.0     0.383    242.0
2013.0     0.380    240.8
2014.0     0.376    239.5
2015.0     0.371    238.2
2016.0     0.367    236.9
2017.0     0.361    235.5
2018.0     0.356    234.1
2019.0     0.350    232.6
2020.0     0.344    231.1
2021.0     0.338    229.6
2022.0     0.332    228.0
2023.0     0.325    226.3
2024.0     0.318    224.5
2025.0     0.311    222.7
2026.0     0.304    220.8
2027.0     0.296    218.8
2028.0     0.288    216.6
2029.0     0.281    214.4
2030.0     0.273    212.0
2031.0     0.265    209.5
2032.0     0.257    206.9
2033.0     0.250    204.1
2034.0     0.242    201.1
2035.0     0.235    197.9
2036.0     0.228    194.5
2037.0     0.221    190.9
2038.0     0.215    187.1
2039.0     0.209    183.0
2040.0     0.203    178.8
2041.0     0.199    174.3
2042.0     0.195    169.6
2043.0     0.192    164.7
2044.0     0.190    159.8
2045.0     0.188    154.7
2046.0     0.188    149.5
2047.0     0.188    144.4
2048.0     0.189    139.3
2049.0     0.191    134.3
2050.0     0.194    129.4
2051.0     0.197    124.6
2052.0     0.200    120.0
2053.0     0.204    115.6
2054.0     0.208    111.3
2055.0     0.212    107.2
2056.0     0.216    103.2
2057.0     0.220     99.4
2058.0     0.223     95.7
2059.0     0.226     92.1
2060.0     0.228     88.6
2061.0     0.229     85.1
2062.0     0.230     81.7
2063.0     0.229     78.2
2064.0     0.228     74.8
2065.0     0.226     71.3
2066.0     0.223     67.7
2067.0     0.220     64.0
2068.0     0.215     60.2
2069.0     0.210     56.2
2070.0     0.204     51.9
2071.0     0.198     47.5
2072.0     0.192     42.7
2073.0     0.186     37.6
2074.0     0.180     32.2
2075.0     0.175     26.5
2076.0     0.171     20.4
2077.0     0.167     14.1
2078.0     0.165      7.5
2079.0     0.164      0.8
2080.0     0.164    354.0
2081.0     0.166    347.4
2082.0     0.170    341.0






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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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