Double Star Calculator - Orbit

Orbital Elements for HDS701
WDS: HDS701 WDS ID/Discoverer
P: 105.887 Orbital period (years)
a: 0.3914 Semi-major axis (arcseconds)
i: 60.8 Inclination (degrees)
Ω: 83.2 Longitude of ascending node (degrees)
T: 2011.398 Epoch of periastron passage (year)
e: 0.817 Eccentricity
ω: 100.2 Longitude of periastron (degrees)
Start-Year: 1972.0565 Year
End-Year: 2077.9435 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS701
Position: 052014.68+410510.8 Epoch-2000 right ascension and declination
WDS-ID: 05202+4105 WDS designation
Discoverer Code: HDS701 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 34557 HD catalog number
Hipparcos number: 24902 Hipparcos catalog number
V1: 5.58 Magnitude of the primary
V2: 8.55 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 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: Cve2020b Reference

Double Star Orbit for HDS701



WDS 6th Orbit including measures of HDS701

-- 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 HDS701
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.251   315.32
--------------------------
1972.06    0.381    27.69
1973.06    0.382    28.69
1974.06    0.382    29.70
1975.06    0.382    30.70
1976.06    0.382    31.71
1977.06    0.382    32.71
1978.06    0.381    33.72
1979.06    0.381    34.73
1980.06    0.380    35.74
1981.06    0.379    36.76
1982.06    0.378    37.78
1983.06    0.376    38.81
1984.06    0.375    39.85
1985.06    0.373    40.90
1986.06    0.371    41.96
1987.06    0.368    43.03
1988.06    0.365    44.12
1989.06    0.362    45.23
1990.06    0.359    46.35
1991.06    0.355    47.50
1992.06    0.351    48.68
1993.06    0.346    49.88
1994.06    0.341    51.12
1995.06    0.335    52.41
1996.06    0.329    53.73
1997.06    0.322    55.11
1998.06    0.315    56.56
1999.06    0.306    58.08
2000.06    0.297    59.69
2001.06    0.286    61.41
2002.06    0.275    63.27
2003.06    0.262    65.31
2004.06    0.247    67.57
2005.06    0.230    70.14
2006.06    0.211    73.15
2007.06    0.188    76.84
2008.06    0.160    81.69
2009.06    0.126    88.91
2010.06    0.082   102.91
2011.06    0.037   154.38
2012.06    0.063   238.31
2013.06    0.105   260.04
2014.06    0.135   270.25
2015.06    0.156   277.14
2016.06    0.173   282.54
2017.06    0.186   287.09
2018.06    0.197   291.08
2019.06    0.206   294.69
2020.06    0.214   298.00
2021.06    0.221   301.09
2022.06    0.228   303.99
2023.06    0.234   306.74
2024.06    0.239   309.36
2025.06    0.244   311.87
2026.06    0.249   314.28
2027.06    0.254   316.60
2028.06    0.258   318.84
2029.06    0.262   321.01
2030.06    0.266   323.11
2031.06    0.270   325.15
2032.06    0.273   327.14
2033.06    0.277   329.08
2034.06    0.281   330.96
2035.06    0.284   332.80
2036.06    0.287   334.59
2037.06    0.291   336.35
2038.06    0.294   338.06
2039.06    0.297   339.74
2040.06    0.300   341.38
2041.06    0.304   342.98
2042.06    0.307   344.56
2043.06    0.310   346.10
2044.06    0.313   347.61
2045.06    0.316   349.09
2046.06    0.319   350.55
2047.06    0.322   351.98
2048.06    0.324   353.38
2049.06    0.327   354.76
2050.06    0.330   356.12
2051.06    0.333   357.45
2052.06    0.335   358.77
2053.06    0.338     0.06
2054.06    0.341     1.33
2055.06    0.343     2.58
2056.06    0.346     3.82
2057.06    0.348     5.03
2058.06    0.351     6.24
2059.06    0.353     7.42
2060.06    0.355     8.59
2061.06    0.357     9.74
2062.06    0.359    10.89
2063.06    0.361    12.01
2064.06    0.363    13.13
2065.06    0.365    14.23
2066.06    0.367    15.33
2067.06    0.369    16.41
2068.06    0.370    17.48
2069.06    0.372    18.54
2070.06    0.374    19.60
2071.06    0.375    20.64
2072.06    0.376    21.68
2073.06    0.377    22.71
2074.06    0.378    23.74
2075.06    0.379    24.76
2076.06    0.380    25.78
2077.06    0.381    26.79






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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 15:36:16



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