| WDS: | BU411 | WDS ID/Discoverer |
| P: | 159.288 | Orbital period (years) |
| a: | 0.86653 | Semi-major axis (arcseconds) |
| i: | 128.49 | Inclination (degrees) |
| Ω: | 148.934 | Longitude of ascending node (degrees) |
| T: | 1948.313 | Epoch of periastron passage (year) |
| e: | 0.75879 | Eccentricity |
| ω: | 41.725 | Longitude of periastron (degrees) |
| Start-Year: | 1945.35615 | Year |
| End-Year: | 2104.64385 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU411 |
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| Position: | 103604.49-264031.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 10361-2641 | WDS designation |
| Discoverer Code: | BU411 | Discover designation and components |
| ADS number: | 7846 | Aitken Double Star catalog |
| HD number: | 91881 | HD catalog number |
| Hipparcos number: | 51885 | Hipparcos catalog number |
| V1: | 6.68 | Magnitude of the primary |
| V2: | 7.77 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 2 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | 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 1.307 300.49 -------------------------- 1945.36 0.261 162.01 1946.36 0.239 151.04 1947.36 0.210 137.44 1948.36 0.177 118.97 1949.36 0.151 92.78 1950.36 0.151 61.40 1951.36 0.180 35.37 1952.36 0.226 18.29 1953.36 0.277 7.27 1954.36 0.329 359.72 1955.36 0.379 354.20 1956.36 0.428 349.97 1957.36 0.474 346.57 1958.36 0.517 343.77 1959.36 0.559 341.39 1960.36 0.598 339.33 1961.36 0.635 337.52 1962.36 0.671 335.90 1963.36 0.705 334.45 1964.36 0.737 333.13 1965.36 0.768 331.91 1966.36 0.797 330.79 1967.36 0.825 329.74 1968.36 0.852 328.77 1969.36 0.878 327.85 1970.36 0.903 326.98 1971.36 0.926 326.16 1972.36 0.949 325.37 1973.36 0.971 324.63 1974.36 0.991 323.91 1975.36 1.011 323.23 1976.36 1.030 322.57 1977.36 1.048 321.93 1978.36 1.066 321.31 1979.36 1.083 320.72 1980.36 1.099 320.14 1981.36 1.114 319.58 1982.36 1.129 319.03 1983.36 1.143 318.50 1984.36 1.156 317.98 1985.36 1.169 317.47 1986.36 1.181 316.97 1987.36 1.193 316.48 1988.36 1.204 316.00 1989.36 1.215 315.53 1990.36 1.225 315.07 1991.36 1.234 314.61 1992.36 1.243 314.17 1993.36 1.252 313.72 1994.36 1.260 313.29 1995.36 1.268 312.86 1996.36 1.275 312.43 1997.36 1.281 312.01 1998.36 1.288 311.59 1999.36 1.293 311.18 2000.36 1.299 310.77 2001.36 1.304 310.36 2002.36 1.308 309.96 2003.36 1.312 309.56 2004.36 1.316 309.16 2005.36 1.320 308.77 2006.36 1.322 308.37 2007.36 1.325 307.98 2008.36 1.327 307.59 2009.36 1.329 307.20 2010.36 1.331 306.81 2011.36 1.332 306.42 2012.36 1.332 306.03 2013.36 1.333 305.65 2014.36 1.333 305.26 2015.36 1.333 304.87 2016.36 1.332 304.48 2017.36 1.331 304.10 2018.36 1.330 303.71 2019.36 1.328 303.32 2020.36 1.326 302.93 2021.36 1.324 302.54 2022.36 1.321 302.14 2023.36 1.318 301.75 2024.36 1.315 301.35 2025.36 1.312 300.95 2026.36 1.308 300.55 2027.36 1.304 300.15 2028.36 1.299 299.74 2029.36 1.294 299.33 2030.36 1.289 298.92 2031.36 1.284 298.50 2032.36 1.278 298.08 2033.36 1.272 297.66 2034.36 1.266 297.23 2035.36 1.259 296.80 2036.36 1.252 296.37 2037.36 1.245 295.93 2038.36 1.238 295.48 2039.36 1.230 295.03 2040.36 1.222 294.57 2041.36 1.214 294.11 2042.36 1.205 293.64 2043.36 1.196 293.16 2044.36 1.187 292.67 2045.36 1.177 292.18 2046.36 1.168 291.68 2047.36 1.158 291.17 2048.36 1.147 290.65 2049.36 1.137 290.13 2050.36 1.126 289.59 2051.36 1.115 289.04 2052.36 1.103 288.48 2053.36 1.091 287.91 2054.36 1.079 287.33 2055.36 1.067 286.73 2056.36 1.055 286.12 2057.36 1.042 285.49 2058.36 1.029 284.85 2059.36 1.015 284.19 2060.36 1.001 283.51 2061.36 0.988 282.82 2062.36 0.973 282.10 2063.36 0.959 281.36 2064.36 0.944 280.60 2065.36 0.929 279.82 2066.36 0.914 279.01 2067.36 0.898 278.17 2068.36 0.882 277.30 2069.36 0.866 276.40 2070.36 0.850 275.47 2071.36 0.833 274.50 2072.36 0.816 273.49 2073.36 0.799 272.43 2074.36 0.782 271.33 2075.36 0.765 270.18 2076.36 0.747 268.98 2077.36 0.729 267.71 2078.36 0.711 266.39 2079.36 0.692 264.99 2080.36 0.674 263.51 2081.36 0.655 261.95 2082.36 0.636 260.30 2083.36 0.617 258.55 2084.36 0.598 256.68 2085.36 0.579 254.69 2086.36 0.559 252.57 2087.36 0.540 250.29 2088.36 0.521 247.85 2089.36 0.502 245.22 2090.36 0.483 242.38 2091.36 0.464 239.32 2092.36 0.446 235.99 2093.36 0.428 232.39 2094.36 0.411 228.48 2095.36 0.394 224.22 2096.36 0.378 219.59 2097.36 0.362 214.56 2098.36 0.348 209.09 2099.36 0.334 203.15 2100.36 0.321 196.73 2101.36 0.308 189.77 2102.36 0.296 182.22 2103.36 0.282 173.99 2104.36 0.266 164.86
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:28:45 |