| WDS: | BU4AB | WDS ID/Discoverer |
| P: | 291.050 | Orbital period (years) |
| a: | 0.43 | Semi-major axis (arcseconds) |
| i: | 141.0 | Inclination (degrees) |
| Ω: | 149.8 | Longitude of ascending node (degrees) |
| T: | 1942.930 | Epoch of periastron passage (year) |
| e: | 0.89 | Eccentricity |
| ω: | 242.8 | Longitude of periastron (degrees) |
| Start-Year: | 1879.475 | Year |
| End-Year: | 2170.525 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU4AB |
||
| Position: | 012119.23+113212.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 01213+1132 | WDS designation |
| Discoverer Code: | BU4AB | Discover designation and components |
| ADS number: | 1097 | Aitken Double Star catalog |
| HD number: | 8187 | HD catalog number |
| Hipparcos number: | 6334 | Hipparcos catalog number |
| V1: | 7.12 | Magnitude of the primary |
| V2: | 8.86 | 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: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Sca2015b | 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 0.619 104.81 -------------------------- 1879.47 0.498 74.98 1880.47 0.494 74.65 1881.47 0.490 74.32 1882.47 0.485 73.98 1883.47 0.481 73.63 1884.47 0.477 73.28 1885.47 0.472 72.92 1886.47 0.468 72.55 1887.47 0.463 72.18 1888.47 0.459 71.80 1889.47 0.454 71.41 1890.47 0.450 71.01 1891.47 0.445 70.61 1892.47 0.440 70.19 1893.47 0.435 69.77 1894.47 0.430 69.33 1895.47 0.425 68.89 1896.47 0.420 68.44 1897.47 0.415 67.97 1898.47 0.410 67.50 1899.47 0.404 67.01 1900.47 0.399 66.50 1901.47 0.393 65.99 1902.47 0.388 65.45 1903.47 0.382 64.91 1904.47 0.376 64.34 1905.47 0.370 63.76 1906.47 0.365 63.16 1907.47 0.359 62.54 1908.47 0.352 61.90 1909.47 0.346 61.24 1910.47 0.340 60.55 1911.47 0.334 59.84 1912.47 0.327 59.09 1913.47 0.321 58.32 1914.47 0.314 57.52 1915.47 0.307 56.67 1916.47 0.300 55.80 1917.47 0.293 54.87 1918.47 0.286 53.91 1919.47 0.279 52.89 1920.47 0.271 51.82 1921.47 0.264 50.68 1922.47 0.256 49.48 1923.47 0.248 48.21 1924.47 0.240 46.85 1925.47 0.232 45.39 1926.47 0.223 43.83 1927.47 0.215 42.14 1928.47 0.206 40.31 1929.47 0.197 38.32 1930.47 0.188 36.13 1931.47 0.179 33.72 1932.47 0.169 31.04 1933.47 0.159 28.02 1934.47 0.149 24.59 1935.47 0.138 20.64 1936.47 0.127 16.01 1937.47 0.115 10.48 1938.47 0.103 3.67 1939.47 0.090 354.95 1940.47 0.076 343.12 1941.47 0.060 325.44 1942.47 0.044 294.79 1943.47 0.038 243.06 1944.47 0.052 200.44 1945.47 0.073 179.18 1946.47 0.094 167.43 1947.47 0.114 159.86 1948.47 0.132 154.45 1949.47 0.148 150.31 1950.47 0.164 146.99 1951.47 0.179 144.23 1952.47 0.193 141.89 1953.47 0.206 139.86 1954.47 0.219 138.06 1955.47 0.231 136.47 1956.47 0.243 135.02 1957.47 0.254 133.71 1958.47 0.265 132.51 1959.47 0.275 131.40 1960.47 0.285 130.37 1961.47 0.295 129.41 1962.47 0.305 128.51 1963.47 0.314 127.66 1964.47 0.323 126.86 1965.47 0.331 126.10 1966.47 0.340 125.38 1967.47 0.348 124.70 1968.47 0.356 124.04 1969.47 0.364 123.42 1970.47 0.371 122.82 1971.47 0.379 122.24 1972.47 0.386 121.69 1973.47 0.393 121.15 1974.47 0.400 120.64 1975.47 0.407 120.14 1976.47 0.413 119.66 1977.47 0.420 119.19 1978.47 0.426 118.74 1979.47 0.432 118.30 1980.47 0.438 117.87 1981.47 0.444 117.46 1982.47 0.450 117.05 1983.47 0.456 116.66 1984.47 0.461 116.27 1985.47 0.467 115.89 1986.47 0.472 115.53 1987.47 0.478 115.17 1988.47 0.483 114.82 1989.47 0.488 114.47 1990.47 0.493 114.13 1991.47 0.497 113.80 1992.47 0.502 113.48 1993.47 0.507 113.16 1994.47 0.511 112.85 1995.47 0.516 112.54 1996.47 0.520 112.24 1997.47 0.525 111.94 1998.47 0.529 111.65 1999.47 0.533 111.36 2000.47 0.537 111.08 2001.47 0.541 110.80 2002.47 0.545 110.53 2003.47 0.549 110.26 2004.47 0.553 109.99 2005.47 0.556 109.73 2006.47 0.560 109.47 2007.47 0.563 109.21 2008.47 0.567 108.95 2009.47 0.570 108.70 2010.47 0.574 108.46 2011.47 0.577 108.21 2012.47 0.580 107.97 2013.47 0.583 107.73 2014.47 0.586 107.49 2015.47 0.589 107.26 2016.47 0.592 107.03 2017.47 0.595 106.80 2018.47 0.598 106.57 2019.47 0.601 106.34 2020.47 0.604 106.12 2021.47 0.606 105.90 2022.47 0.609 105.68 2023.47 0.611 105.46 2024.47 0.614 105.25 2025.47 0.616 105.03 2026.47 0.619 104.82 2027.47 0.621 104.61 2028.47 0.623 104.40 2029.47 0.626 104.19 2030.47 0.628 103.99 2031.47 0.630 103.78 2032.47 0.632 103.58 2033.47 0.634 103.37 2034.47 0.636 103.17 2035.47 0.638 102.97 2036.47 0.640 102.77 2037.47 0.641 102.58 2038.47 0.643 102.38 2039.47 0.645 102.19 2040.47 0.646 101.99 2041.47 0.648 101.80 2042.47 0.650 101.60 2043.47 0.651 101.41 2044.47 0.653 101.22 2045.47 0.654 101.03 2046.47 0.655 100.84 2047.47 0.657 100.66 2048.47 0.658 100.47 2049.47 0.659 100.28 2050.47 0.660 100.09 2051.47 0.662 99.91 2052.47 0.663 99.72 2053.47 0.664 99.54 2054.47 0.665 99.36 2055.47 0.666 99.17 2056.47 0.667 98.99 2057.47 0.667 98.81 2058.47 0.668 98.63 2059.47 0.669 98.45 2060.47 0.670 98.26 2061.47 0.670 98.08 2062.47 0.671 97.90 2063.47 0.672 97.72 2064.47 0.672 97.54 2065.47 0.673 97.37 2066.47 0.673 97.19 2067.47 0.674 97.01 2068.47 0.674 96.83 2069.47 0.674 96.65 2070.47 0.675 96.47 2071.47 0.675 96.29 2072.47 0.675 96.12 2073.47 0.675 95.94 2074.47 0.676 95.76 2075.47 0.676 95.58 2076.47 0.676 95.41 2077.47 0.676 95.23 2078.47 0.676 95.05 2079.47 0.676 94.87 2080.47 0.676 94.70 2081.47 0.676 94.52 2082.47 0.675 94.34 2083.47 0.675 94.16 2084.47 0.675 93.99 2085.47 0.675 93.81 2086.47 0.674 93.63 2087.47 0.674 93.45 2088.47 0.673 93.27 2089.47 0.673 93.09 2090.47 0.673 92.92 2091.47 0.672 92.74 2092.47 0.671 92.56 2093.47 0.671 92.38 2094.47 0.670 92.20 2095.47 0.669 92.02 2096.47 0.669 91.83 2097.47 0.668 91.65 2098.47 0.667 91.47 2099.47 0.666 91.29 2100.47 0.665 91.11 2101.47 0.664 90.92 2102.47 0.663 90.74 2103.47 0.662 90.55 2104.47 0.661 90.37 2105.47 0.660 90.18 2106.47 0.659 90.00 2107.47 0.658 89.81 2108.47 0.657 89.62 2109.47 0.656 89.44 2110.47 0.654 89.25 2111.47 0.653 89.06 2112.47 0.652 88.87 2113.47 0.650 88.67 2114.47 0.649 88.48 2115.47 0.647 88.29 2116.47 0.646 88.10 2117.47 0.644 87.90 2118.47 0.642 87.70 2119.47 0.641 87.51 2120.47 0.639 87.31 2121.47 0.637 87.11 2122.47 0.636 86.91 2123.47 0.634 86.71 2124.47 0.632 86.51 2125.47 0.630 86.30 2126.47 0.628 86.10 2127.47 0.626 85.89 2128.47 0.624 85.69 2129.47 0.622 85.48 2130.47 0.620 85.27 2131.47 0.618 85.05 2132.47 0.616 84.84 2133.47 0.613 84.63 2134.47 0.611 84.41 2135.47 0.609 84.19 2136.47 0.606 83.97 2137.47 0.604 83.75 2138.47 0.601 83.53 2139.47 0.599 83.30 2140.47 0.596 83.08 2141.47 0.594 82.85 2142.47 0.591 82.62 2143.47 0.588 82.38 2144.47 0.586 82.15 2145.47 0.583 81.91 2146.47 0.580 81.67 2147.47 0.577 81.43 2148.47 0.574 81.19 2149.47 0.571 80.94 2150.47 0.568 80.69 2151.47 0.565 80.44 2152.47 0.562 80.18 2153.47 0.559 79.92 2154.47 0.556 79.66 2155.47 0.553 79.40 2156.47 0.549 79.13 2157.47 0.546 78.86 2158.47 0.543 78.59 2159.47 0.539 78.31 2160.47 0.536 78.03 2161.47 0.532 77.75 2162.47 0.529 77.46 2163.47 0.525 77.17 2164.47 0.521 76.87 2165.47 0.518 76.57 2166.47 0.514 76.27 2167.47 0.510 75.96 2168.47 0.506 75.64 2169.47 0.502 75.32 2170.47 0.498 75.00
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:49:56 |