| WDS: | HU1291 | WDS ID/Discoverer |
| P: | 215.890 | Orbital period (years) |
| a: | 0.332 | Semi-major axis (arcseconds) |
| i: | 147.4 | Inclination (degrees) |
| Ω: | 92.0 | Longitude of ascending node (degrees) |
| T: | 1988.750 | Epoch of periastron passage (year) |
| e: | 0.683 | Eccentricity |
| ω: | 278.0 | Longitude of periastron (degrees) |
| Start-Year: | 1917.055 | Year |
| End-Year: | 2132.945 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for HU1291 |
||
| Position: | 181616.75+362518.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18163+3625 | WDS designation |
| Discoverer Code: | HU1291 | Discover designation and components |
| ADS number: | 11225 | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.3 | Magnitude of the primary |
| V2: | 10.0 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2008 | 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: | Hrt2014b | 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 0.334 37.67 -------------------------- 1917.06 0.447 333.60 1918.06 0.446 333.03 1919.06 0.444 332.46 1920.06 0.442 331.88 1921.06 0.440 331.30 1922.06 0.438 330.71 1923.06 0.436 330.12 1924.06 0.434 329.53 1925.06 0.432 328.92 1926.06 0.430 328.31 1927.06 0.428 327.70 1928.06 0.425 327.08 1929.06 0.423 326.45 1930.06 0.420 325.81 1931.06 0.418 325.17 1932.06 0.415 324.52 1933.06 0.413 323.86 1934.06 0.410 323.19 1935.06 0.407 322.51 1936.06 0.404 321.82 1937.06 0.401 321.12 1938.06 0.398 320.42 1939.06 0.395 319.70 1940.06 0.392 318.97 1941.06 0.388 318.22 1942.06 0.385 317.47 1943.06 0.382 316.70 1944.06 0.378 315.91 1945.06 0.374 315.11 1946.06 0.370 314.30 1947.06 0.367 313.46 1948.06 0.363 312.61 1949.06 0.359 311.74 1950.06 0.354 310.85 1951.06 0.350 309.94 1952.06 0.346 309.01 1953.06 0.341 308.05 1954.06 0.337 307.06 1955.06 0.332 306.05 1956.06 0.327 305.01 1957.06 0.322 303.93 1958.06 0.317 302.82 1959.06 0.311 301.68 1960.06 0.306 300.49 1961.06 0.300 299.26 1962.06 0.295 297.98 1963.06 0.289 296.65 1964.06 0.283 295.26 1965.06 0.276 293.81 1966.06 0.270 292.30 1967.06 0.263 290.70 1968.06 0.256 289.02 1969.06 0.249 287.25 1970.06 0.242 285.37 1971.06 0.234 283.38 1972.06 0.226 281.24 1973.06 0.218 278.96 1974.06 0.210 276.49 1975.06 0.201 273.81 1976.06 0.192 270.89 1977.06 0.183 267.69 1978.06 0.174 264.13 1979.06 0.164 260.16 1980.06 0.154 255.69 1981.06 0.144 250.58 1982.06 0.134 244.69 1983.06 0.123 237.83 1984.06 0.114 229.77 1985.06 0.105 220.26 1986.06 0.097 209.13 1987.06 0.092 196.39 1988.06 0.089 182.47 1989.06 0.089 168.20 1990.06 0.093 154.52 1991.06 0.099 142.17 1992.06 0.107 131.41 1993.06 0.115 122.19 1994.06 0.125 114.31 1995.06 0.134 107.54 1996.06 0.144 101.66 1997.06 0.153 96.51 1998.06 0.162 91.94 1999.06 0.171 87.84 2000.06 0.179 84.15 2001.06 0.187 80.78 2002.06 0.195 77.70 2003.06 0.203 74.85 2004.06 0.211 72.21 2005.06 0.218 69.75 2006.06 0.225 67.44 2007.06 0.232 65.27 2008.06 0.238 63.22 2009.06 0.245 61.28 2010.06 0.251 59.44 2011.06 0.257 57.69 2012.06 0.263 56.02 2013.06 0.269 54.42 2014.06 0.274 52.88 2015.06 0.280 51.41 2016.06 0.285 49.99 2017.06 0.290 48.63 2018.06 0.295 47.31 2019.06 0.300 46.04 2020.06 0.305 44.80 2021.06 0.310 43.61 2022.06 0.315 42.45 2023.06 0.319 41.32 2024.06 0.324 40.23 2025.06 0.328 39.16 2026.06 0.332 38.13 2027.06 0.336 37.11 2028.06 0.340 36.13 2029.06 0.344 35.16 2030.06 0.348 34.22 2031.06 0.352 33.30 2032.06 0.356 32.40 2033.06 0.360 31.51 2034.06 0.363 30.65 2035.06 0.367 29.80 2036.06 0.370 28.96 2037.06 0.373 28.15 2038.06 0.377 27.34 2039.06 0.380 26.55 2040.06 0.383 25.77 2041.06 0.386 25.01 2042.06 0.389 24.26 2043.06 0.392 23.52 2044.06 0.395 22.79 2045.06 0.398 22.07 2046.06 0.401 21.36 2047.06 0.403 20.66 2048.06 0.406 19.97 2049.06 0.409 19.29 2050.06 0.411 18.62 2051.06 0.414 17.95 2052.06 0.416 17.29 2053.06 0.419 16.64 2054.06 0.421 16.00 2055.06 0.423 15.37 2056.06 0.425 14.74 2057.06 0.427 14.12 2058.06 0.430 13.50 2059.06 0.432 12.89 2060.06 0.434 12.29 2061.06 0.435 11.69 2062.06 0.437 11.09 2063.06 0.439 10.50 2064.06 0.441 9.92 2065.06 0.443 9.34 2066.06 0.444 8.77 2067.06 0.446 8.20 2068.06 0.448 7.63 2069.06 0.449 7.07 2070.06 0.451 6.51 2071.06 0.452 5.95 2072.06 0.453 5.40 2073.06 0.455 4.85 2074.06 0.456 4.31 2075.06 0.457 3.76 2076.06 0.459 3.23 2077.06 0.460 2.69 2078.06 0.461 2.15 2079.06 0.462 1.62 2080.06 0.463 1.09 2081.06 0.464 0.57 2082.06 0.465 0.04 2083.06 0.466 359.52 2084.06 0.466 359.00 2085.06 0.467 358.48 2086.06 0.468 357.96 2087.06 0.468 357.45 2088.06 0.469 356.93 2089.06 0.470 356.42 2090.06 0.470 355.91 2091.06 0.471 355.39 2092.06 0.471 354.88 2093.06 0.472 354.38 2094.06 0.472 353.87 2095.06 0.472 353.36 2096.06 0.472 352.85 2097.06 0.473 352.35 2098.06 0.473 351.84 2099.06 0.473 351.33 2100.06 0.473 350.83 2101.06 0.473 350.32 2102.06 0.473 349.82 2103.06 0.473 349.31 2104.06 0.473 348.81 2105.06 0.473 348.30 2106.06 0.472 347.79 2107.06 0.472 347.29 2108.06 0.472 346.78 2109.06 0.471 346.27 2110.06 0.471 345.76 2111.06 0.471 345.25 2112.06 0.470 344.74 2113.06 0.469 344.23 2114.06 0.469 343.71 2115.06 0.468 343.20 2116.06 0.467 342.68 2117.06 0.467 342.16 2118.06 0.466 341.64 2119.06 0.465 341.12 2120.06 0.464 340.60 2121.06 0.463 340.07 2122.06 0.462 339.54 2123.06 0.461 339.01 2124.06 0.460 338.48 2125.06 0.459 337.94 2126.06 0.457 337.40 2127.06 0.456 336.86 2128.06 0.455 336.31 2129.06 0.453 335.77 2130.06 0.452 335.21 2131.06 0.450 334.66 2132.06 0.449 334.10
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:49:54 |