Double Star Calculator - Orbit

Orbital Elements for HDS814
WDS: HDS814 WDS ID/Discoverer
P: 175.000 Orbital period (years)
a: 0.991 Semi-major axis (arcseconds)
i: 95.0 Inclination (degrees)
Ω: 10.1 Longitude of ascending node (degrees)
T: 2115.230 Epoch of periastron passage (year)
e: 0.759 Eccentricity
ω: 86.8 Longitude of periastron (degrees)
Start-Year: 1937.5 Year
End-Year: 2112.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS814
Position: 055949.69-481423.5 Epoch-2000 right ascension and declination
WDS-ID: 05598-4814 WDS designation
Discoverer Code: HDS814 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 41004 HD catalog number
Hipparcos number: 28393 Hipparcos catalog number
V1: 8.82 Magnitude of the primary
V2: 12.51 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2018e Reference

Double Star Orbit for HDS814



WDS 6th Orbit including measures of HDS814

-- 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 HDS814
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.189   136.92
--------------------------
1937.50    0.248     6.97
1938.50    0.172     4.30
1939.50    0.085   356.51
1940.50    0.024   248.95
1941.50    0.108   200.66
1942.50    0.193   195.25
1943.50    0.268   193.06
1944.50    0.332   191.78
1945.50    0.386   190.88
1946.50    0.432   190.20
1947.50    0.471   189.64
1948.50    0.505   189.16
1949.50    0.534   188.73
1950.50    0.559   188.35
1951.50    0.581   188.00
1952.50    0.600   187.67
1953.50    0.617   187.36
1954.50    0.631   187.06
1955.50    0.643   186.78
1956.50    0.653   186.51
1957.50    0.662   186.24
1958.50    0.670   185.98
1959.50    0.676   185.73
1960.50    0.681   185.48
1961.50    0.685   185.24
1962.50    0.688   184.99
1963.50    0.690   184.75
1964.50    0.692   184.51
1965.50    0.692   184.27
1966.50    0.692   184.03
1967.50    0.691   183.79
1968.50    0.690   183.55
1969.50    0.688   183.31
1970.50    0.685   183.07
1971.50    0.682   182.82
1972.50    0.678   182.57
1973.50    0.674   182.32
1974.50    0.670   182.07
1975.50    0.665   181.81
1976.50    0.659   181.55
1977.50    0.654   181.28
1978.50    0.648   181.01
1979.50    0.641   180.74
1980.50    0.635   180.46
1981.50    0.628   180.17
1982.50    0.621   179.87
1983.50    0.613   179.57
1984.50    0.605   179.26
1985.50    0.598   178.95
1986.50    0.589   178.62
1987.50    0.581   178.29
1988.50    0.572   177.94
1989.50    0.564   177.59
1990.50    0.555   177.22
1991.50    0.545   176.84
1992.50    0.536   176.45
1993.50    0.527   176.04
1994.50    0.517   175.62
1995.50    0.507   175.18
1996.50    0.497   174.73
1997.50    0.487   174.26
1998.50    0.477   173.76
1999.50    0.467   173.25
2000.50    0.456   172.71
2001.50    0.446   172.15
2002.50    0.435   171.56
2003.50    0.425   170.94
2004.50    0.414   170.29
2005.50    0.403   169.60
2006.50    0.393   168.88
2007.50    0.382   168.11
2008.50    0.371   167.30
2009.50    0.360   166.45
2010.50    0.349   165.54
2011.50    0.338   164.57
2012.50    0.328   163.53
2013.50    0.317   162.43
2014.50    0.306   161.24
2015.50    0.295   159.98
2016.50    0.285   158.61
2017.50    0.274   157.14
2018.50    0.264   155.56
2019.50    0.254   153.84
2020.50    0.243   151.99
2021.50    0.234   149.97
2022.50    0.224   147.78
2023.50    0.215   145.40
2024.50    0.206   142.81
2025.50    0.197   139.98
2026.50    0.189   136.92
2027.50    0.182   133.58
2028.50    0.175   129.98
2029.50    0.169   126.10
2030.50    0.163   121.94
2031.50    0.159   117.52
2032.50    0.155   112.88
2033.50    0.153   108.05
2034.50    0.152   103.10
2035.50    0.151    98.08
2036.50    0.152    93.09
2037.50    0.154    88.18
2038.50    0.157    83.43
2039.50    0.161    78.88
2040.50    0.166    74.58
2041.50    0.171    70.54
2042.50    0.178    66.78
2043.50    0.185    63.30
2044.50    0.193    60.08
2045.50    0.201    57.12
2046.50    0.210    54.40
2047.50    0.219    51.91
2048.50    0.228    49.61
2049.50    0.238    47.50
2050.50    0.248    45.55
2051.50    0.258    43.75
2052.50    0.268    42.10
2053.50    0.278    40.56
2054.50    0.289    39.13
2055.50    0.300    37.81
2056.50    0.310    36.58
2057.50    0.321    35.42
2058.50    0.332    34.35
2059.50    0.342    33.34
2060.50    0.353    32.39
2061.50    0.364    31.49
2062.50    0.374    30.65
2063.50    0.385    29.85
2064.50    0.395    29.10
2065.50    0.406    28.39
2066.50    0.416    27.71
2067.50    0.426    27.06
2068.50    0.437    26.45
2069.50    0.447    25.86
2070.50    0.456    25.30
2071.50    0.466    24.76
2072.50    0.476    24.24
2073.50    0.485    23.74
2074.50    0.494    23.27
2075.50    0.503    22.81
2076.50    0.512    22.36
2077.50    0.521    21.93
2078.50    0.529    21.52
2079.50    0.537    21.11
2080.50    0.545    20.72
2081.50    0.552    20.34
2082.50    0.559    19.97
2083.50    0.566    19.61
2084.50    0.573    19.25
2085.50    0.579    18.91
2086.50    0.584    18.57
2087.50    0.589    18.23
2088.50    0.594    17.91
2089.50    0.598    17.58
2090.50    0.601    17.26
2091.50    0.604    16.95
2092.50    0.606    16.64
2093.50    0.607    16.32
2094.50    0.608    16.01
2095.50    0.607    15.70
2096.50    0.606    15.39
2097.50    0.603    15.08
2098.50    0.600    14.76
2099.50    0.595    14.44
2100.50    0.588    14.11
2101.50    0.580    13.78
2102.50    0.570    13.43
2103.50    0.557    13.07
2104.50    0.542    12.69
2105.50    0.524    12.29
2106.50    0.503    11.85
2107.50    0.477    11.37
2108.50    0.446    10.84
2109.50    0.409    10.21
2110.50    0.365     9.45
2111.50    0.312     8.45






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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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 15:42:33



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