Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:29:17

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:	1942.0	Year
End-Year:	2108.0	Year
Epoch:	2025.0	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' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HU1159

WDS 6th Orbit including measures of HU1159

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of HU1159

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.311      1.8
-------------------------
1942.0     0.166     65.3
1943.0     0.159     67.4
1944.0     0.151     69.8
1945.0     0.143     72.4
1946.0     0.135     75.3
1947.0     0.126     78.7
1948.0     0.116     82.6
1949.0     0.106     87.2
1950.0     0.095     92.9
1951.0     0.083    100.2
1952.0     0.070    110.0
1953.0     0.058    124.0
1954.0     0.047    145.1
1955.0     0.042    175.1
1956.0     0.044    206.9
1957.0     0.054    231.1
1958.0     0.065    247.5
1959.0     0.076    259.1
1960.0     0.086    267.9
1961.0     0.095    274.8
1962.0     0.104    280.5
1963.0     0.112    285.4
1964.0     0.120    289.6
1965.0     0.127    293.3
1966.0     0.134    296.7
1967.0     0.140    299.7
1968.0     0.146    302.5
1969.0     0.152    305.0
1970.0     0.158    307.4
1971.0     0.163    309.6
1972.0     0.168    311.7
1973.0     0.173    313.6
1974.0     0.178    315.4
1975.0     0.183    317.2
1976.0     0.188    318.8
1977.0     0.192    320.4
1978.0     0.196    321.9
1979.0     0.201    323.4
1980.0     0.205    324.8
1981.0     0.209    326.1
1982.0     0.212    327.4
1983.0     0.216    328.6
1984.0     0.220    329.8
1985.0     0.224    331.0
1986.0     0.227    332.1
1987.0     0.230    333.2
1988.0     0.234    334.2
1989.0     0.237    335.3
1990.0     0.240    336.3
1991.0     0.243    337.2
1992.0     0.246    338.2
1993.0     0.249    339.1
1994.0     0.252    340.0
1995.0     0.255    340.9
1996.0     0.257    341.8
1997.0     0.260    342.6
1998.0     0.263    343.5
1999.0     0.265    344.3
2000.0     0.268    345.1
2001.0     0.270    345.9
2002.0     0.272    346.6
2003.0     0.275    347.4
2004.0     0.277    348.1
2005.0     0.279    348.9
2006.0     0.281    349.6
2007.0     0.283    350.3
2008.0     0.285    351.0
2009.0     0.287    351.7
2010.0     0.289    352.4
2011.0     0.291    353.1
2012.0     0.293    353.7
2013.0     0.294    354.4
2014.0     0.296    355.1
2015.0     0.298    355.7
2016.0     0.299    356.3
2017.0     0.301    357.0
2018.0     0.302    357.6
2019.0     0.303    358.2
2020.0     0.305    358.8
2021.0     0.306    359.4
2022.0     0.307      0.0
2023.0     0.308      0.6
2024.0     0.310      1.2
2025.0     0.311      1.8
2026.0     0.312      2.4
2027.0     0.313      3.0
2028.0     0.313      3.6
2029.0     0.314      4.2
2030.0     0.315      4.7
2031.0     0.316      5.3
2032.0     0.317      5.9
2033.0     0.317      6.4
2034.0     0.318      7.0
2035.0     0.318      7.6
2036.0     0.319      8.1
2037.0     0.319      8.7
2038.0     0.320      9.2
2039.0     0.320      9.8
2040.0     0.320     10.4
2041.0     0.321     10.9
2042.0     0.321     11.5
2043.0     0.321     12.0
2044.0     0.321     12.6
2045.0     0.321     13.1
2046.0     0.321     13.7
2047.0     0.321     14.2
2048.0     0.321     14.8
2049.0     0.321     15.3
2050.0     0.320     15.9
2051.0     0.320     16.4
2052.0     0.320     17.0
2053.0     0.319     17.5
2054.0     0.319     18.1
2055.0     0.318     18.7
2056.0     0.318     19.2
2057.0     0.317     19.8
2058.0     0.317     20.4
2059.0     0.316     20.9
2060.0     0.315     21.5
2061.0     0.314     22.1
2062.0     0.313     22.7
2063.0     0.312     23.2
2064.0     0.311     23.8
2065.0     0.310     24.4
2066.0     0.309     25.0
2067.0     0.307     25.6
2068.0     0.306     26.2
2069.0     0.305     26.8
2070.0     0.303     27.4
2071.0     0.302     28.1
2072.0     0.300     28.7
2073.0     0.298     29.3
2074.0     0.297     30.0
2075.0     0.295     30.6
2076.0     0.293     31.3
2077.0     0.291     31.9
2078.0     0.289     32.6
2079.0     0.287     33.3
2080.0     0.284     34.0
2081.0     0.282     34.7
2082.0     0.279     35.4
2083.0     0.277     36.2
2084.0     0.274     36.9
2085.0     0.272     37.7
2086.0     0.269     38.5
2087.0     0.266     39.3
2088.0     0.263     40.1
2089.0     0.260     40.9
2090.0     0.256     41.8
2091.0     0.253     42.6
2092.0     0.250     43.5
2093.0     0.246     44.5
2094.0     0.242     45.4
2095.0     0.238     46.4
2096.0     0.234     47.4
2097.0     0.230     48.5
2098.0     0.226     49.6
2099.0     0.221     50.7
2100.0     0.216     51.9
2101.0     0.211     53.2
2102.0     0.206     54.5
2103.0     0.201     55.8
2104.0     0.195     57.3
2105.0     0.189     58.8
2106.0     0.183     60.5
2107.0     0.177     62.2

Disclaimer

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.