Double Star Calculator - Orbit

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: 1971.35 Year
End-Year: 2078.65 Year
Epoch: 2026.5 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
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2021c Reference

Double Star Orbit for HDS1421



WDS 6th Orbit including measures of HDS1421

-- 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 HDS1421
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.142    10.72
--------------------------
1971.35    0.272    93.98
1972.35    0.271    95.05
1973.35    0.270    96.12
1974.35    0.269    97.20
1975.35    0.268    98.29
1976.35    0.266    99.39
1977.35    0.264   100.51
1978.35    0.263   101.64
1979.35    0.260   102.78
1980.35    0.258   103.95
1981.35    0.256   105.14
1982.35    0.253   106.35
1983.35    0.250   107.58
1984.35    0.248   108.85
1985.35    0.244   110.14
1986.35    0.241   111.48
1987.35    0.237   112.85
1988.35    0.233   114.27
1989.35    0.229   115.73
1990.35    0.225   117.25
1991.35    0.220   118.83
1992.35    0.216   120.48
1993.35    0.210   122.21
1994.35    0.205   124.03
1995.35    0.199   125.95
1996.35    0.193   127.98
1997.35    0.187   130.15
1998.35    0.180   132.48
1999.35    0.173   134.99
2000.35    0.166   137.72
2001.35    0.158   140.72
2002.35    0.150   144.04
2003.35    0.141   147.75
2004.35    0.132   151.96
2005.35    0.123   156.81
2006.35    0.113   162.47
2007.35    0.103   169.22
2008.35    0.093   177.42
2009.35    0.083   187.54
2010.35    0.075   200.15
2011.35    0.068   215.65
2012.35    0.064   233.76
2013.35    0.064   253.04
2014.35    0.067   271.47
2015.35    0.072   287.70
2016.35    0.079   301.46
2017.35    0.086   313.06
2018.35    0.093   322.93
2019.35    0.099   331.45
2020.35    0.106   338.91
2021.35    0.112   345.52
2022.35    0.118   351.43
2023.35    0.124   356.76
2024.35    0.130     1.61
2025.35    0.136     6.05
2026.35    0.141    10.14
2027.35    0.147    13.91
2028.35    0.152    17.42
2029.35    0.157    20.70
2030.35    0.163    23.76
2031.35    0.168    26.64
2032.35    0.172    29.36
2033.35    0.177    31.92
2034.35    0.182    34.36
2035.35    0.186    36.67
2036.35    0.191    38.87
2037.35    0.195    40.98
2038.35    0.200    42.99
2039.35    0.204    44.92
2040.35    0.208    46.78
2041.35    0.212    48.56
2042.35    0.215    50.29
2043.35    0.219    51.95
2044.35    0.223    53.56
2045.35    0.226    55.12
2046.35    0.229    56.63
2047.35    0.233    58.10
2048.35    0.236    59.54
2049.35    0.239    60.93
2050.35    0.241    62.29
2051.35    0.244    63.62
2052.35    0.247    64.92
2053.35    0.249    66.20
2054.35    0.252    67.45
2055.35    0.254    68.67
2056.35    0.256    69.88
2057.35    0.258    71.06
2058.35    0.260    72.23
2059.35    0.262    73.38
2060.35    0.264    74.52
2061.35    0.265    75.64
2062.35    0.267    76.75
2063.35    0.268    77.84
2064.35    0.269    78.93
2065.35    0.270    80.01
2066.35    0.271    81.08
2067.35    0.272    82.14
2068.35    0.273    83.20
2069.35    0.273    84.25
2070.35    0.274    85.30
2071.35    0.274    86.34
2072.35    0.274    87.38
2073.35    0.274    88.43
2074.35    0.274    89.47
2075.35    0.274    90.51
2076.35    0.274    91.56
2077.35    0.273    92.61
2078.35    0.272    93.67






Disclaimer
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 16:21:31



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