Double Star Calculator - Orbit

Orbital Elements for HJ4786AB
WDS: HJ4786AB WDS ID/Discoverer
P: 201.400 Orbital period (years)
a: 0.642 Semi-major axis (arcseconds)
i: 96.6 Inclination (degrees)
Ω: 91.0 Longitude of ascending node (degrees)
T: 2092.030 Epoch of periastron passage (year)
e: 0.63 Eccentricity
ω: 131.4 Longitude of periastron (degrees)
Start-Year: 1924.3 Year
End-Year: 2125.7 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HJ4786AB
Position: 153508.41-411000.4 Epoch-2000 right ascension and declination
WDS-ID: 15351-4110 WDS designation
Discoverer Code: HJ4786AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 138690 HD catalog number
Hipparcos number: 76297 Hipparcos catalog number
V1: 3.44 Magnitude of the primary
V2: 3.54 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Doc2023c Reference

Double Star Orbit for HJ4786AB



WDS 6th Orbit including measures of HJ4786AB

-- 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 HJ4786AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.835    94.65
--------------------------
1924.30    0.098   218.17
1925.30    0.092   210.90
1926.30    0.087   202.71
1927.30    0.085   193.81
1928.30    0.084   184.53
1929.30    0.086   175.35
1930.30    0.089   166.69
1931.30    0.094   158.84
1932.30    0.101   151.95
1933.30    0.109   145.99
1934.30    0.118   140.90
1935.30    0.128   136.56
1936.30    0.138   132.84
1937.30    0.149   129.65
1938.30    0.160   126.90
1939.30    0.172   124.50
1940.30    0.183   122.41
1941.30    0.195   120.56
1942.30    0.206   118.93
1943.30    0.218   117.47
1944.30    0.230   116.16
1945.30    0.242   114.98
1946.30    0.254   113.91
1947.30    0.266   112.93
1948.30    0.278   112.04
1949.30    0.289   111.22
1950.30    0.301   110.47
1951.30    0.313   109.77
1952.30    0.324   109.12
1953.30    0.336   108.52
1954.30    0.348   107.95
1955.30    0.359   107.43
1956.30    0.370   106.93
1957.30    0.382   106.47
1958.30    0.393   106.03
1959.30    0.404   105.61
1960.30    0.415   105.22
1961.30    0.426   104.85
1962.30    0.437   104.50
1963.30    0.447   104.16
1964.30    0.458   103.84
1965.30    0.468   103.53
1966.30    0.479   103.24
1967.30    0.489   102.96
1968.30    0.499   102.69
1969.30    0.509   102.43
1970.30    0.519   102.18
1971.30    0.529   101.94
1972.30    0.539   101.71
1973.30    0.548   101.49
1974.30    0.558   101.27
1975.30    0.567   101.07
1976.30    0.576   100.87
1977.30    0.585   100.67
1978.30    0.594   100.48
1979.30    0.603   100.30
1980.30    0.612   100.12
1981.30    0.620    99.95
1982.30    0.629    99.78
1983.30    0.637    99.61
1984.30    0.645    99.45
1985.30    0.653    99.30
1986.30    0.661    99.14
1987.30    0.668    99.00
1988.30    0.676    98.85
1989.30    0.683    98.71
1990.30    0.691    98.57
1991.30    0.698    98.43
1992.30    0.705    98.30
1993.30    0.711    98.17
1994.30    0.718    98.04
1995.30    0.724    97.91
1996.30    0.731    97.79
1997.30    0.737    97.67
1998.30    0.743    97.55
1999.30    0.749    97.43
2000.30    0.754    97.31
2001.30    0.760    97.20
2002.30    0.765    97.08
2003.30    0.770    96.97
2004.30    0.775    96.86
2005.30    0.780    96.75
2006.30    0.785    96.64
2007.30    0.789    96.54
2008.30    0.793    96.43
2009.30    0.797    96.33
2010.30    0.801    96.23
2011.30    0.805    96.12
2012.30    0.808    96.02
2013.30    0.812    95.92
2014.30    0.815    95.82
2015.30    0.817    95.73
2016.30    0.820    95.63
2017.30    0.823    95.53
2018.30    0.825    95.43
2019.30    0.827    95.34
2020.30    0.829    95.24
2021.30    0.830    95.14
2022.30    0.832    95.05
2023.30    0.833    94.95
2024.30    0.834    94.86
2025.30    0.834    94.77
2026.30    0.835    94.67
2027.30    0.835    94.58
2028.30    0.835    94.48
2029.30    0.834    94.39
2030.30    0.834    94.29
2031.30    0.833    94.20
2032.30    0.832    94.10
2033.30    0.830    94.01
2034.30    0.829    93.91
2035.30    0.827    93.82
2036.30    0.825    93.72
2037.30    0.822    93.62
2038.30    0.819    93.53
2039.30    0.816    93.43
2040.30    0.813    93.33
2041.30    0.809    93.23
2042.30    0.805    93.13
2043.30    0.800    93.02
2044.30    0.795    92.92
2045.30    0.790    92.82
2046.30    0.784    92.71
2047.30    0.779    92.60
2048.30    0.772    92.49
2049.30    0.765    92.38
2050.30    0.758    92.27
2051.30    0.751    92.15
2052.30    0.743    92.04
2053.30    0.734    91.92
2054.30    0.725    91.79
2055.30    0.716    91.67
2056.30    0.706    91.54
2057.30    0.696    91.40
2058.30    0.685    91.26
2059.30    0.674    91.12
2060.30    0.662    90.97
2061.30    0.649    90.82
2062.30    0.636    90.66
2063.30    0.622    90.49
2064.30    0.607    90.32
2065.30    0.592    90.14
2066.30    0.576    89.95
2067.30    0.560    89.74
2068.30    0.542    89.53
2069.30    0.524    89.29
2070.30    0.505    89.05
2071.30    0.485    88.78
2072.30    0.465    88.49
2073.30    0.443    88.17
2074.30    0.420    87.81
2075.30    0.396    87.42
2076.30    0.371    86.97
2077.30    0.345    86.46
2078.30    0.318    85.86
2079.30    0.289    85.14
2080.30    0.260    84.27
2081.30    0.229    83.16
2082.30    0.196    81.70
2083.30    0.163    79.64
2084.30    0.129    76.51
2085.30    0.094    71.08
2086.30    0.060    59.39
2087.30    0.033    24.68
2088.30    0.038   321.11
2089.30    0.068   294.96
2090.30    0.102   285.43
2091.30    0.135   280.67
2092.30    0.167   277.76
2093.30    0.195   275.74
2094.30    0.220   274.21
2095.30    0.242   272.98
2096.30    0.259   271.94
2097.30    0.273   271.01
2098.30    0.284   270.16
2099.30    0.291   269.37
2100.30    0.296   268.61
2101.30    0.298   267.86
2102.30    0.299   267.13
2103.30    0.297   266.39
2104.30    0.294   265.64
2105.30    0.290   264.87
2106.30    0.284   264.07
2107.30    0.278   263.23
2108.30    0.270   262.36
2109.30    0.262   261.43
2110.30    0.253   260.44
2111.30    0.244   259.37
2112.30    0.234   258.22
2113.30    0.224   256.97
2114.30    0.213   255.59
2115.30    0.203   254.07
2116.30    0.192   252.38
2117.30    0.181   250.49
2118.30    0.170   248.35
2119.30    0.159   245.93
2120.30    0.148   243.14
2121.30    0.138   239.93
2122.30    0.128   236.21
2123.30    0.118   231.85
2124.30    0.109   226.76
2125.30    0.101   220.81






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 17:17:14



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