| WDS: | HU181 | WDS ID/Discoverer |
| P: | 209.660 | Orbital period (years) |
| a: | 0.644 | Semi-major axis (arcseconds) |
| i: | 73.5 | Inclination (degrees) |
| Ω: | 229.3 | Longitude of ascending node (degrees) |
| T: | 1912.360 | Epoch of periastron passage (year) |
| e: | 0.676 | Eccentricity |
| ω: | 340.5 | Longitude of periastron (degrees) |
| Start-Year: | 1920.17 | Year |
| End-Year: | 2129.83 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for HU181 |
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| Position: | 173924.26-154541.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17394-1546 | WDS designation |
| Discoverer Code: | HU181 | Discover designation and components |
| ADS number: | 10683 | Aitken Double Star catalog |
| HD number: | 160239 | HD catalog number |
| Hipparcos number: | 86412 | Hipparcos catalog number |
| V1: | 9.70 | Magnitude of the primary |
| V2: | 10.06 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1998 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Hrt2001a | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 1.038 44.86 -------------------------- 1920.17 0.185 250.69 1921.17 0.174 255.32 1922.17 0.163 260.59 1923.17 0.152 266.64 1924.17 0.142 273.56 1925.17 0.134 281.40 1926.17 0.128 290.11 1927.17 0.125 299.46 1928.17 0.125 309.05 1929.17 0.128 318.42 1930.17 0.134 327.18 1931.17 0.142 335.05 1932.17 0.152 341.94 1933.17 0.165 347.90 1934.17 0.178 353.00 1935.17 0.192 357.37 1936.17 0.207 1.12 1937.17 0.222 4.36 1938.17 0.238 7.18 1939.17 0.254 9.65 1940.17 0.270 11.82 1941.17 0.286 13.75 1942.17 0.302 15.48 1943.17 0.318 17.03 1944.17 0.334 18.43 1945.17 0.350 19.70 1946.17 0.366 20.86 1947.17 0.382 21.92 1948.17 0.398 22.90 1949.17 0.413 23.81 1950.17 0.428 24.65 1951.17 0.444 25.44 1952.17 0.458 26.17 1953.17 0.473 26.86 1954.17 0.488 27.50 1955.17 0.502 28.11 1956.17 0.516 28.69 1957.17 0.530 29.23 1958.17 0.544 29.75 1959.17 0.558 30.24 1960.17 0.571 30.70 1961.17 0.585 31.15 1962.17 0.598 31.58 1963.17 0.611 31.99 1964.17 0.623 32.38 1965.17 0.636 32.75 1966.17 0.648 33.12 1967.17 0.660 33.46 1968.17 0.672 33.80 1969.17 0.684 34.12 1970.17 0.695 34.44 1971.17 0.706 34.74 1972.17 0.717 35.04 1973.17 0.728 35.32 1974.17 0.739 35.60 1975.17 0.750 35.87 1976.17 0.760 36.13 1977.17 0.770 36.38 1978.17 0.780 36.63 1979.17 0.790 36.87 1980.17 0.799 37.11 1981.17 0.809 37.34 1982.17 0.818 37.56 1983.17 0.827 37.78 1984.17 0.836 38.00 1985.17 0.844 38.21 1986.17 0.853 38.42 1987.17 0.861 38.62 1988.17 0.869 38.82 1989.17 0.877 39.02 1990.17 0.885 39.21 1991.17 0.892 39.40 1992.17 0.900 39.58 1993.17 0.907 39.77 1994.17 0.914 39.95 1995.17 0.920 40.12 1996.17 0.927 40.30 1997.17 0.933 40.47 1998.17 0.940 40.64 1999.17 0.946 40.81 2000.17 0.951 40.97 2001.17 0.957 41.14 2002.17 0.963 41.30 2003.17 0.968 41.46 2004.17 0.973 41.62 2005.17 0.978 41.77 2006.17 0.983 41.93 2007.17 0.987 42.08 2008.17 0.992 42.23 2009.17 0.996 42.39 2010.17 1.000 42.53 2011.17 1.004 42.68 2012.17 1.007 42.83 2013.17 1.011 42.98 2014.17 1.014 43.12 2015.17 1.017 43.27 2016.17 1.020 43.41 2017.17 1.023 43.55 2018.17 1.025 43.70 2019.17 1.027 43.84 2020.17 1.029 43.98 2021.17 1.031 44.12 2022.17 1.033 44.26 2023.17 1.035 44.40 2024.17 1.036 44.54 2025.17 1.037 44.68 2026.17 1.038 44.81 2027.17 1.039 44.95 2028.17 1.039 45.09 2029.17 1.040 45.23 2030.17 1.040 45.37 2031.17 1.040 45.50 2032.17 1.040 45.64 2033.17 1.039 45.78 2034.17 1.039 45.92 2035.17 1.038 46.06 2036.17 1.037 46.19 2037.17 1.036 46.33 2038.17 1.034 46.47 2039.17 1.033 46.61 2040.17 1.031 46.75 2041.17 1.029 46.89 2042.17 1.026 47.03 2043.17 1.024 47.18 2044.17 1.021 47.32 2045.17 1.018 47.46 2046.17 1.015 47.61 2047.17 1.012 47.75 2048.17 1.008 47.90 2049.17 1.004 48.04 2050.17 1.000 48.19 2051.17 0.996 48.34 2052.17 0.991 48.49 2053.17 0.987 48.65 2054.17 0.982 48.80 2055.17 0.976 48.96 2056.17 0.971 49.11 2057.17 0.965 49.27 2058.17 0.959 49.43 2059.17 0.953 49.60 2060.17 0.946 49.76 2061.17 0.940 49.93 2062.17 0.933 50.10 2063.17 0.925 50.27 2064.17 0.918 50.45 2065.17 0.910 50.63 2066.17 0.902 50.81 2067.17 0.893 50.99 2068.17 0.885 51.18 2069.17 0.876 51.37 2070.17 0.866 51.57 2071.17 0.857 51.77 2072.17 0.847 51.98 2073.17 0.837 52.19 2074.17 0.826 52.40 2075.17 0.815 52.62 2076.17 0.804 52.85 2077.17 0.793 53.08 2078.17 0.781 53.32 2079.17 0.769 53.57 2080.17 0.756 53.83 2081.17 0.743 54.09 2082.17 0.730 54.37 2083.17 0.716 54.65 2084.17 0.702 54.95 2085.17 0.688 55.26 2086.17 0.673 55.58 2087.17 0.658 55.92 2088.17 0.642 56.27 2089.17 0.626 56.64 2090.17 0.610 57.03 2091.17 0.593 57.44 2092.17 0.575 57.88 2093.17 0.557 58.34 2094.17 0.539 58.84 2095.17 0.520 59.37 2096.17 0.500 59.95 2097.17 0.480 60.57 2098.17 0.460 61.24 2099.17 0.439 61.98 2100.17 0.417 62.80 2101.17 0.395 63.70 2102.17 0.372 64.72 2103.17 0.348 65.87 2104.17 0.324 67.19 2105.17 0.300 68.72 2106.17 0.275 70.53 2107.17 0.249 72.71 2108.17 0.223 75.39 2109.17 0.197 78.78 2110.17 0.171 83.21 2111.17 0.145 89.21 2112.17 0.121 97.70 2113.17 0.100 110.07 2114.17 0.085 127.82 2115.17 0.080 150.19 2116.17 0.087 172.07 2117.17 0.103 188.96 2118.17 0.123 200.77 2119.17 0.145 209.10 2120.17 0.166 215.26 2121.17 0.185 220.10 2122.17 0.200 224.12 2123.17 0.210 227.66 2124.17 0.216 230.93 2125.17 0.218 234.10 2126.17 0.215 237.27 2127.17 0.210 240.57 2128.17 0.202 244.08 2129.17 0.192 247.93
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:41:45 |