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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:54:35

Orbital Elements for HDS1421
WDS: HDS1421 WDS ID/Discoverer
P: 107.300 Orbital period (years)
a: 0.186 Semi-major axis (arcseconds)
i: 31.1 Inclination (degrees)
Ω: 132.7 Longitude of ascending node (degrees)
T: 2013.840 Epoch of periastron passage (year)
e: 0.614 Eccentricity
ω: 125.3 Longitude of periastron (degrees)
Start-Year: 1972.0 Year
End-Year: 2078.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1421
Position: 095100.80-800339.9 Epoch-2000 right ascension and declination
WDS-ID: 09510-8004 WDS designation
Discoverer Code: HDS1421 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 86320 HD catalog number
Hipparcos number: 48320 Hipparcos catalog number
V1: 6.68 Magnitude of the primary
V2: 8.61 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS1421



WDS 6th Orbit including measures of HDS1421

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


Ephemeris of HDS1421
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.134      4.5
-------------------------
1972.0     0.271     94.7
1973.0     0.271     95.7
1974.0     0.269     96.8
1975.0     0.268     97.9
1976.0     0.267     99.0
1977.0     0.265    100.1
1978.0     0.263    101.2
1979.0     0.261    102.4
1980.0     0.259    103.5
1981.0     0.257    104.7
1982.0     0.254    105.9
1983.0     0.251    107.1
1984.0     0.249    108.4
1985.0     0.245    109.7
1986.0     0.242    111.0
1987.0     0.239    112.4
1988.0     0.235    113.8
1989.0     0.231    115.2
1990.0     0.227    116.7
1991.0     0.222    118.3
1992.0     0.217    119.9
1993.0     0.212    121.6
1994.0     0.207    123.4
1995.0     0.201    125.3
1996.0     0.195    127.3
1997.0     0.189    129.4
1998.0     0.183    131.6
1999.0     0.176    134.1
2000.0     0.168    136.7
2001.0     0.161    139.6
2002.0     0.153    142.8
2003.0     0.144    146.4
2004.0     0.135    150.4
2005.0     0.126    155.0
2006.0     0.116    160.4
2007.0     0.106    166.7
2008.0     0.096    174.4
2009.0     0.087    183.7
2010.0     0.078    195.4
2011.0     0.070    209.9
2012.0     0.065    227.2
2013.0     0.064    246.3
2014.0     0.066    265.2
2015.0     0.070    282.3
2016.0     0.077    296.9
2017.0     0.083    309.2
2018.0     0.090    319.6
2019.0     0.097    328.6
2020.0     0.104    336.4
2021.0     0.110    343.3
2022.0     0.116    349.4
2023.0     0.122    355.0
2024.0     0.128    360.0
2025.0     0.134      4.5
2026.0     0.139      8.7
2027.0     0.145     12.6
2028.0     0.150     16.2
2029.0     0.156     19.6
2030.0     0.161     22.7
2031.0     0.166     25.7
2032.0     0.171     28.4
2033.0     0.176     31.0
2034.0     0.180     33.5
2035.0     0.185     35.9
2036.0     0.189     38.1
2037.0     0.194     40.3
2038.0     0.198     42.3
2039.0     0.202     44.3
2040.0     0.206     46.1
2041.0     0.210     47.9
2042.0     0.214     49.7
2043.0     0.218     51.4
2044.0     0.221     53.0
2045.0     0.225     54.6
2046.0     0.228     56.1
2047.0     0.231     57.6
2048.0     0.235     59.0
2049.0     0.238     60.4
2050.0     0.240     61.8
2051.0     0.243     63.2
2052.0     0.246     64.5
2053.0     0.249     65.8
2054.0     0.251     67.0
2055.0     0.253     68.2
2056.0     0.255     69.5
2057.0     0.258     70.7
2058.0     0.260     71.8
2059.0     0.261     73.0
2060.0     0.263     74.1
2061.0     0.265     75.2
2062.0     0.266     76.4
2063.0     0.268     77.5
2064.0     0.269     78.5
2065.0     0.270     79.6
2066.0     0.271     80.7
2067.0     0.272     81.8
2068.0     0.273     82.8
2069.0     0.273     83.9
2070.0     0.274     84.9
2071.0     0.274     86.0
2072.0     0.274     87.0
2073.0     0.274     88.1
2074.0     0.274     89.1
2075.0     0.274     90.1
2076.0     0.274     91.2
2077.0     0.273     92.2






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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