| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:28:12 |
| 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: | 1880.0 | Year |
| End-Year: | 2170.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| 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' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.615 105.1 ------------------------- 1880.0 0.496 74.8 1881.0 0.492 74.5 1882.0 0.487 74.1 1883.0 0.483 73.8 1884.0 0.479 73.4 1885.0 0.474 73.1 1886.0 0.470 72.7 1887.0 0.466 72.4 1888.0 0.461 72.0 1889.0 0.456 71.6 1890.0 0.452 71.2 1891.0 0.447 70.8 1892.0 0.442 70.4 1893.0 0.437 70.0 1894.0 0.432 69.5 1895.0 0.427 69.1 1896.0 0.422 68.7 1897.0 0.417 68.2 1898.0 0.412 67.7 1899.0 0.407 67.2 1900.0 0.401 66.7 1901.0 0.396 66.2 1902.0 0.390 65.7 1903.0 0.385 65.2 1904.0 0.379 64.6 1905.0 0.373 64.0 1906.0 0.367 63.5 1907.0 0.361 62.8 1908.0 0.355 62.2 1909.0 0.349 61.6 1910.0 0.343 60.9 1911.0 0.337 60.2 1912.0 0.330 59.4 1913.0 0.324 58.7 1914.0 0.317 57.9 1915.0 0.310 57.1 1916.0 0.303 56.2 1917.0 0.296 55.3 1918.0 0.289 54.4 1919.0 0.282 53.4 1920.0 0.275 52.3 1921.0 0.267 51.2 1922.0 0.260 50.1 1923.0 0.252 48.8 1924.0 0.244 47.5 1925.0 0.236 46.1 1926.0 0.227 44.6 1927.0 0.219 43.0 1928.0 0.210 41.2 1929.0 0.202 39.3 1930.0 0.192 37.2 1931.0 0.183 34.9 1932.0 0.174 32.3 1933.0 0.164 29.5 1934.0 0.154 26.3 1935.0 0.143 22.6 1936.0 0.132 18.3 1937.0 0.121 13.2 1938.0 0.109 7.1 1939.0 0.096 359.4 1940.0 0.083 349.2 1941.0 0.068 334.9 1942.0 0.052 311.7 1943.0 0.039 269.5 1944.0 0.044 217.3 1945.0 0.063 187.5 1946.0 0.084 172.3 1947.0 0.104 163.1 1948.0 0.123 156.8 1949.0 0.141 152.2 1950.0 0.157 148.5 1951.0 0.172 145.5 1952.0 0.186 143.0 1953.0 0.200 140.8 1954.0 0.213 138.9 1955.0 0.226 137.2 1956.0 0.237 135.7 1957.0 0.249 134.3 1958.0 0.260 133.1 1959.0 0.270 131.9 1960.0 0.281 130.8 1961.0 0.291 129.9 1962.0 0.300 128.9 1963.0 0.310 128.1 1964.0 0.319 127.2 1965.0 0.327 126.5 1966.0 0.336 125.7 1967.0 0.344 125.0 1968.0 0.352 124.3 1969.0 0.360 123.7 1970.0 0.368 123.1 1971.0 0.375 122.5 1972.0 0.383 121.9 1973.0 0.390 121.4 1974.0 0.397 120.9 1975.0 0.404 120.4 1976.0 0.410 119.9 1977.0 0.417 119.4 1978.0 0.423 119.0 1979.0 0.429 118.5 1980.0 0.436 118.1 1981.0 0.442 117.7 1982.0 0.447 117.2 1983.0 0.453 116.8 1984.0 0.459 116.5 1985.0 0.464 116.1 1986.0 0.470 115.7 1987.0 0.475 115.3 1988.0 0.480 115.0 1989.0 0.485 114.6 1990.0 0.490 114.3 1991.0 0.495 114.0 1992.0 0.500 113.6 1993.0 0.505 113.3 1994.0 0.509 113.0 1995.0 0.514 112.7 1996.0 0.518 112.4 1997.0 0.523 112.1 1998.0 0.527 111.8 1999.0 0.531 111.5 2000.0 0.535 111.2 2001.0 0.539 110.9 2002.0 0.543 110.7 2003.0 0.547 110.4 2004.0 0.551 110.1 2005.0 0.555 109.9 2006.0 0.558 109.6 2007.0 0.562 109.3 2008.0 0.565 109.1 2009.0 0.569 108.8 2010.0 0.572 108.6 2011.0 0.575 108.3 2012.0 0.579 108.1 2013.0 0.582 107.8 2014.0 0.585 107.6 2015.0 0.588 107.4 2016.0 0.591 107.1 2017.0 0.594 106.9 2018.0 0.597 106.7 2019.0 0.600 106.5 2020.0 0.602 106.2 2021.0 0.605 106.0 2022.0 0.608 105.8 2023.0 0.610 105.6 2024.0 0.613 105.3 2025.0 0.615 105.1 2026.0 0.618 104.9 2027.0 0.620 104.7 2028.0 0.622 104.5 2029.0 0.624 104.3 2030.0 0.627 104.1 2031.0 0.629 103.9 2032.0 0.631 103.7 2033.0 0.633 103.5 2034.0 0.635 103.3 2035.0 0.637 103.1 2036.0 0.639 102.9 2037.0 0.641 102.7 2038.0 0.642 102.5 2039.0 0.644 102.3 2040.0 0.646 102.1 2041.0 0.647 101.9 2042.0 0.649 101.7 2043.0 0.650 101.5 2044.0 0.652 101.3 2045.0 0.653 101.1 2046.0 0.655 100.9 2047.0 0.656 100.7 2048.0 0.657 100.6 2049.0 0.659 100.4 2050.0 0.660 100.2 2051.0 0.661 100.0 2052.0 0.662 99.8 2053.0 0.663 99.6 2054.0 0.664 99.4 2055.0 0.665 99.3 2056.0 0.666 99.1 2057.0 0.667 98.9 2058.0 0.668 98.7 2059.0 0.669 98.5 2060.0 0.669 98.4 2061.0 0.670 98.2 2062.0 0.671 98.0 2063.0 0.671 97.8 2064.0 0.672 97.6 2065.0 0.673 97.5 2066.0 0.673 97.3 2067.0 0.673 97.1 2068.0 0.674 96.9 2069.0 0.674 96.7 2070.0 0.675 96.6 2071.0 0.675 96.4 2072.0 0.675 96.2 2073.0 0.675 96.0 2074.0 0.676 95.8 2075.0 0.676 95.7 2076.0 0.676 95.5 2077.0 0.676 95.3 2078.0 0.676 95.1 2079.0 0.676 95.0 2080.0 0.676 94.8 2081.0 0.676 94.6 2082.0 0.675 94.4 2083.0 0.675 94.2 2084.0 0.675 94.1 2085.0 0.675 93.9 2086.0 0.674 93.7 2087.0 0.674 93.5 2088.0 0.674 93.4 2089.0 0.673 93.2 2090.0 0.673 93.0 2091.0 0.672 92.8 2092.0 0.672 92.6 2093.0 0.671 92.5 2094.0 0.670 92.3 2095.0 0.670 92.1 2096.0 0.669 91.9 2097.0 0.668 91.7 2098.0 0.667 91.6 2099.0 0.667 91.4 2100.0 0.666 91.2 2101.0 0.665 91.0 2102.0 0.664 90.8 2103.0 0.663 90.6 2104.0 0.662 90.5 2105.0 0.661 90.3 2106.0 0.660 90.1 2107.0 0.659 89.9 2108.0 0.657 89.7 2109.0 0.656 89.5 2110.0 0.655 89.3 2111.0 0.654 89.1 2112.0 0.652 89.0 2113.0 0.651 88.8 2114.0 0.649 88.6 2115.0 0.648 88.4 2116.0 0.646 88.2 2117.0 0.645 88.0 2118.0 0.643 87.8 2119.0 0.642 87.6 2120.0 0.640 87.4 2121.0 0.638 87.2 2122.0 0.636 87.0 2123.0 0.635 86.8 2124.0 0.633 86.6 2125.0 0.631 86.4 2126.0 0.629 86.2 2127.0 0.627 86.0 2128.0 0.625 85.8 2129.0 0.623 85.6 2130.0 0.621 85.4 2131.0 0.619 85.2 2132.0 0.617 84.9 2133.0 0.614 84.7 2134.0 0.612 84.5 2135.0 0.610 84.3 2136.0 0.607 84.1 2137.0 0.605 83.9 2138.0 0.603 83.6 2139.0 0.600 83.4 2140.0 0.598 83.2 2141.0 0.595 83.0 2142.0 0.592 82.7 2143.0 0.590 82.5 2144.0 0.587 82.3 2145.0 0.584 82.0 2146.0 0.582 81.8 2147.0 0.579 81.5 2148.0 0.576 81.3 2149.0 0.573 81.1 2150.0 0.570 80.8 2151.0 0.567 80.6 2152.0 0.564 80.3 2153.0 0.561 80.0 2154.0 0.557 79.8 2155.0 0.554 79.5 2156.0 0.551 79.3 2157.0 0.548 79.0 2158.0 0.544 78.7 2159.0 0.541 78.4 2160.0 0.537 78.2 2161.0 0.534 77.9 2162.0 0.530 77.6 2163.0 0.527 77.3 2164.0 0.523 77.0 2165.0 0.519 76.7 2166.0 0.516 76.4 2167.0 0.512 76.1 2168.0 0.508 75.8 2169.0 0.504 75.5