Double Star Calculator - Orbit

Orbital Elements for HU158

WDS:	HU158	WDS ID/Discoverer
P:	260.300	Orbital period (years)
a:	0.306	Semi-major axis (arcseconds)
i:	108.7	Inclination (degrees)
Ω:	137.0	Longitude of ascending node (degrees)
T:	2001.600	Epoch of periastron passage (year)
e:	0.717	Eccentricity
ω:	181.7	Longitude of periastron (degrees)
Start-Year:	1894.85	Year
End-Year:	2155.15	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU158
Position:	162706.46-120528.0	Epoch-2000 right ascension and declination
WDS-ID:	16271-1205	WDS designation
Discoverer Code:	HU158	Discover designation and components
ADS number:	10064	Aitken Double Star catalog
HD number:	148246	HD catalog number
Hipparcos number:	80576	Hipparcos catalog number
V1:	9.5	Magnitude of the primary
V2:	9.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	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:	Tok2022g	Reference

Double Star Orbit for HU158

WDS 6th Orbit including measures of HU158

-- 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 HU158

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.155   161.61
--------------------------
1894.85    0.507   133.94
1895.85    0.506   133.83
1896.85    0.504   133.71
1897.85    0.503   133.60
1898.85    0.501   133.48
1899.85    0.499   133.37
1900.85    0.497   133.25
1901.85    0.495   133.13
1902.85    0.493   133.01
1903.85    0.492   132.90
1904.85    0.489   132.78
1905.85    0.487   132.65
1906.85    0.485   132.53
1907.85    0.483   132.41
1908.85    0.481   132.28
1909.85    0.478   132.16
1910.85    0.476   132.03
1911.85    0.473   131.90
1912.85    0.471   131.77
1913.85    0.468   131.64
1914.85    0.465   131.51
1915.85    0.463   131.37
1916.85    0.460   131.24
1917.85    0.457   131.10
1918.85    0.454   130.96
1919.85    0.451   130.82
1920.85    0.448   130.68
1921.85    0.445   130.53
1922.85    0.441   130.38
1923.85    0.438   130.23
1924.85    0.435   130.08
1925.85    0.431   129.93
1926.85    0.428   129.77
1927.85    0.424   129.61
1928.85    0.421   129.45
1929.85    0.417   129.28
1930.85    0.413   129.11
1931.85    0.409   128.94
1932.85    0.405   128.77
1933.85    0.401   128.59
1934.85    0.397   128.41
1935.85    0.393   128.22
1936.85    0.389   128.03
1937.85    0.384   127.84
1938.85    0.380   127.64
1939.85    0.375   127.44
1940.85    0.371   127.23
1941.85    0.366   127.02
1942.85    0.361   126.80
1943.85    0.356   126.57
1944.85    0.352   126.34
1945.85    0.347   126.11
1946.85    0.341   125.86
1947.85    0.336   125.61
1948.85    0.331   125.35
1949.85    0.326   125.08
1950.85    0.320   124.80
1951.85    0.315   124.52
1952.85    0.309   124.22
1953.85    0.303   123.91
1954.85    0.298   123.59
1955.85    0.292   123.26
1956.85    0.286   122.91
1957.85    0.280   122.55
1958.85    0.273   122.17
1959.85    0.267   121.77
1960.85    0.261   121.36
1961.85    0.254   120.92
1962.85    0.247   120.46
1963.85    0.241   119.97
1964.85    0.234   119.46
1965.85    0.227   118.91
1966.85    0.220   118.33
1967.85    0.213   117.72
1968.85    0.206   117.05
1969.85    0.198   116.34
1970.85    0.191   115.58
1971.85    0.183   114.75
1972.85    0.175   113.85
1973.85    0.168   112.86
1974.85    0.160   111.78
1975.85    0.152   110.59
1976.85    0.144   109.26
1977.85    0.135   107.77
1978.85    0.127   106.09
1979.85    0.119   104.18
1980.85    0.111   101.98
1981.85    0.102    99.43
1982.85    0.094    96.43
1983.85    0.086    92.86
1984.85    0.078    88.56
1985.85    0.071    83.32
1986.85    0.064    76.88
1987.85    0.057    68.94
1988.85    0.052    59.29
1989.85    0.049    47.93
1990.85    0.047    35.34
1991.85    0.048    22.47
1992.85    0.050    10.41
1993.85    0.055   359.85
1994.85    0.060   350.96
1995.85    0.066   343.57
1996.85    0.071   337.38
1997.85    0.077   332.11
1998.85    0.081   327.48
1999.85    0.085   323.29
2000.85    0.086   319.35
2001.85    0.086   315.49
2002.85    0.085   311.54
2003.85    0.081   307.33
2004.85    0.076   302.66
2005.85    0.071   297.28
2006.85    0.064   290.90
2007.85    0.058   283.15
2008.85    0.053   273.66
2009.85    0.048   262.20
2010.85    0.046   249.01
2011.85    0.046   235.04
2012.85    0.048   221.69
2013.85    0.052   210.02
2014.85    0.058   200.41
2015.85    0.065   192.71
2016.85    0.073   186.57
2017.85    0.081   181.63
2018.85    0.089   177.62
2019.85    0.098   174.30
2020.85    0.106   171.52
2021.85    0.115   169.15
2022.85    0.124   167.12
2023.85    0.132   165.35
2024.85    0.141   163.80
2025.85    0.149   162.42
2026.85    0.158   161.19
2027.85    0.166   160.08
2028.85    0.174   159.08
2029.85    0.182   158.16
2030.85    0.190   157.33
2031.85    0.197   156.55
2032.85    0.205   155.84
2033.85    0.213   155.17
2034.85    0.220   154.55
2035.85    0.227   153.98
2036.85    0.234   153.43
2037.85    0.241   152.92
2038.85    0.248   152.44
2039.85    0.255   151.98
2040.85    0.262   151.55
2041.85    0.268   151.13
2042.85    0.275   150.74
2043.85    0.281   150.37
2044.85    0.287   150.01
2045.85    0.293   149.66
2046.85    0.299   149.34
2047.85    0.305   149.02
2048.85    0.311   148.71
2049.85    0.317   148.42
2050.85    0.323   148.14
2051.85    0.328   147.86
2052.85    0.333   147.60
2053.85    0.339   147.34
2054.85    0.344   147.10
2055.85    0.349   146.85
2056.85    0.354   146.62
2057.85    0.359   146.39
2058.85    0.364   146.17
2059.85    0.369   145.96
2060.85    0.374   145.75
2061.85    0.378   145.54
2062.85    0.383   145.34
2063.85    0.387   145.15
2064.85    0.392   144.96
2065.85    0.396   144.77
2066.85    0.400   144.59
2067.85    0.404   144.41
2068.85    0.408   144.23
2069.85    0.412   144.06
2070.85    0.416   143.89
2071.85    0.420   143.72
2072.85    0.424   143.56
2073.85    0.427   143.40
2074.85    0.431   143.24
2075.85    0.434   143.09
2076.85    0.438   142.94
2077.85    0.441   142.79
2078.85    0.444   142.64
2079.85    0.448   142.49
2080.85    0.451   142.35
2081.85    0.454   142.21
2082.85    0.457   142.07
2083.85    0.460   141.93
2084.85    0.463   141.80
2085.85    0.465   141.66
2086.85    0.468   141.53
2087.85    0.471   141.40
2088.85    0.473   141.27
2089.85    0.476   141.14
2090.85    0.478   141.01
2091.85    0.481   140.89
2092.85    0.483   140.76
2093.85    0.485   140.64
2094.85    0.487   140.52
2095.85    0.490   140.39
2096.85    0.492   140.27
2097.85    0.494   140.15
2098.85    0.496   140.04
2099.85    0.497   139.92
2100.85    0.499   139.80
2101.85    0.501   139.69
2102.85    0.503   139.57
2103.85    0.504   139.46
2104.85    0.506   139.34
2105.85    0.507   139.23
2106.85    0.509   139.12
2107.85    0.510   139.01
2108.85    0.512   138.90
2109.85    0.513   138.79
2110.85    0.514   138.68
2111.85    0.515   138.57
2112.85    0.516   138.46
2113.85    0.517   138.35
2114.85    0.518   138.24
2115.85    0.519   138.14
2116.85    0.520   138.03
2117.85    0.521   137.92
2118.85    0.521   137.81
2119.85    0.522   137.71
2120.85    0.523   137.60
2121.85    0.523   137.50
2122.85    0.524   137.39
2123.85    0.524   137.28
2124.85    0.524   137.18
2125.85    0.525   137.07
2126.85    0.525   136.97
2127.85    0.525   136.86
2128.85    0.525   136.76
2129.85    0.525   136.65
2130.85    0.525   136.55
2131.85    0.525   136.44
2132.85    0.525   136.34
2133.85    0.525   136.23
2134.85    0.525   136.13
2135.85    0.524   136.02
2136.85    0.524   135.92
2137.85    0.524   135.81
2138.85    0.523   135.71
2139.85    0.523   135.60
2140.85    0.522   135.50
2141.85    0.521   135.39
2142.85    0.521   135.28
2143.85    0.520   135.18
2144.85    0.519   135.07
2145.85    0.518   134.96
2146.85    0.517   134.85
2147.85    0.516   134.74
2148.85    0.515   134.64
2149.85    0.514   134.53
2150.85    0.513   134.42
2151.85    0.512   134.31
2152.85    0.510   134.20
2153.85    0.509   134.08
2154.85    0.508   133.97

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 17:26:42