Double Star Calculator - Orbit

Orbital Elements for HU1159
WDS: HU1159 WDS ID/Discoverer
P: 166.580 Orbital period (years)
a: 0.231 Semi-major axis (arcseconds)
i: 39.5 Inclination (degrees)
Ω: 264.0 Longitude of ascending node (degrees)
T: 1955.440 Epoch of periastron passage (year)
e: 0.769 Eccentricity
ω: 282.2 Longitude of periastron (degrees)
Start-Year: 1941.71 Year
End-Year: 2108.29 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU1159
Position: 151240.62+600804.9 Epoch-2000 right ascension and declination
WDS-ID: 15127+6008 WDS designation
Discoverer Code: HU1159 Discover designation and components
ADS number: 9545 Aitken Double Star catalog
HD number: 135529 HD catalog number
Hipparcos number: 74428 Hipparcos catalog number
V1: 9.45 Magnitude of the primary
V2: 9.92 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hrt2014b Reference

Double Star Orbit for HU1159



WDS 6th Orbit including measures of HU1159

-- 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 HU1159
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.312     2.72
--------------------------
1941.71    0.168    64.68
1942.71    0.161    66.77
1943.71    0.154    69.07
1944.71    0.146    71.61
1945.71    0.137    74.45
1946.71    0.128    77.67
1947.71    0.119    81.39
1948.71    0.109    85.79
1949.71    0.098    91.13
1950.71    0.086    97.87
1951.71    0.074   106.79
1952.71    0.061   119.34
1953.71    0.050   138.08
1954.71    0.042   165.72
1955.71    0.043   198.26
1956.71    0.051   225.03
1957.71    0.061   243.39
1958.71    0.073   256.13
1959.71    0.083   265.55
1960.71    0.093   272.92
1961.71    0.102   278.94
1962.71    0.110   284.02
1963.71    0.118   288.41
1964.71    0.125   292.28
1965.71    0.132   295.73
1966.71    0.138   298.84
1967.71    0.145   301.69
1968.71    0.151   304.30
1969.71    0.156   306.72
1970.71    0.162   308.97
1971.71    0.167   311.08
1972.71    0.172   313.06
1973.71    0.177   314.93
1974.71    0.182   316.69
1975.71    0.186   318.37
1976.71    0.191   319.97
1977.71    0.195   321.50
1978.71    0.199   322.96
1979.71    0.203   324.37
1980.71    0.207   325.71
1981.71    0.211   327.01
1982.71    0.215   328.26
1983.71    0.219   329.47
1984.71    0.222   330.64
1985.71    0.226   331.77
1986.71    0.229   332.86
1987.71    0.233   333.93
1988.71    0.236   334.96
1989.71    0.239   335.97
1990.71    0.242   336.95
1991.71    0.245   337.91
1992.71    0.248   338.84
1993.71    0.251   339.76
1994.71    0.254   340.65
1995.71    0.257   341.52
1996.71    0.259   342.37
1997.71    0.262   343.21
1998.71    0.265   344.03
1999.71    0.267   344.84
2000.71    0.269   345.63
2001.71    0.272   346.40
2002.71    0.274   347.17
2003.71    0.276   347.92
2004.71    0.278   348.66
2005.71    0.281   349.39
2006.71    0.283   350.10
2007.71    0.285   350.81
2008.71    0.287   351.51
2009.71    0.288   352.20
2010.71    0.290   352.87
2011.71    0.292   353.55
2012.71    0.294   354.21
2013.71    0.295   354.86
2014.71    0.297   355.51
2015.71    0.299   356.15
2016.71    0.300   356.79
2017.71    0.302   357.42
2018.71    0.303   358.04
2019.71    0.304   358.66
2020.71    0.306   359.27
2021.71    0.307   359.87
2022.71    0.308     0.47
2023.71    0.309     1.07
2024.71    0.310     1.67
2025.71    0.311     2.25
2026.71    0.312     2.84
2027.71    0.313     3.42
2028.71    0.314     4.00
2029.71    0.315     4.57
2030.71    0.316     5.15
2031.71    0.316     5.72
2032.71    0.317     6.28
2033.71    0.318     6.85
2034.71    0.318     7.41
2035.71    0.319     7.97
2036.71    0.319     8.53
2037.71    0.320     9.09
2038.71    0.320     9.64
2039.71    0.320    10.20
2040.71    0.321    10.75
2041.71    0.321    11.30
2042.71    0.321    11.86
2043.71    0.321    12.41
2044.71    0.321    12.96
2045.71    0.321    13.51
2046.71    0.321    14.06
2047.71    0.321    14.61
2048.71    0.321    15.17
2049.71    0.321    15.72
2050.71    0.320    16.27
2051.71    0.320    16.83
2052.71    0.320    17.39
2053.71    0.319    17.94
2054.71    0.319    18.50
2055.71    0.318    19.06
2056.71    0.317    19.63
2057.71    0.317    20.19
2058.71    0.316    20.76
2059.71    0.315    21.33
2060.71    0.314    21.91
2061.71    0.313    22.48
2062.71    0.312    23.07
2063.71    0.311    23.65
2064.71    0.310    24.24
2065.71    0.309    24.83
2066.71    0.308    25.43
2067.71    0.306    26.03
2068.71    0.305    26.64
2069.71    0.304    27.26
2070.71    0.302    27.88
2071.71    0.301    28.50
2072.71    0.299    29.14
2073.71    0.297    29.78
2074.71    0.295    30.43
2075.71    0.293    31.08
2076.71    0.291    31.75
2077.71    0.289    32.42
2078.71    0.287    33.11
2079.71    0.285    33.80
2080.71    0.283    34.51
2081.71    0.280    35.23
2082.71    0.278    35.96
2083.71    0.275    36.70
2084.71    0.272    37.46
2085.71    0.270    38.24
2086.71    0.267    39.03
2087.71    0.264    39.84
2088.71    0.261    40.66
2089.71    0.257    41.51
2090.71    0.254    42.38
2091.71    0.251    43.27
2092.71    0.247    44.19
2093.71    0.243    45.14
2094.71    0.239    46.12
2095.71    0.235    47.13
2096.71    0.231    48.17
2097.71    0.227    49.26
2098.71    0.222    50.39
2099.71    0.218    51.56
2100.71    0.213    52.79
2101.71    0.208    54.08
2102.71    0.202    55.43
2103.71    0.197    56.86
2104.71    0.191    58.37
2105.71    0.185    59.98
2106.71    0.179    61.69
2107.71    0.172    63.54






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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 17:13:06



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