| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:50:35 |
| WDS: | BU1177 | WDS ID/Discoverer |
| P: | 258.400 | Orbital period (years) |
| a: | 0.494 | Semi-major axis (arcseconds) |
| i: | 120.2 | Inclination (degrees) |
| Ω: | 16.2 | Longitude of ascending node (degrees) |
| T: | 1903.100 | Epoch of periastron passage (year) |
| e: | 0.268 | Eccentricity |
| ω: | 16.3 | Longitude of periastron (degrees) |
| Start-Year: | 1896.0 | Year |
| End-Year: | 2154.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 031852.91-010108.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 03189-0101 | WDS designation |
| Discoverer Code: | BU1177 | Discover designation and components |
| ADS number: | 2464 | Aitken Double Star catalog |
| HD number: | 20601 | HD catalog number |
| Hipparcos number: | 15430 | Hipparcos catalog number |
| V1: | 10.28 | Magnitude of the primary |
| V2: | 10.38 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 3 | 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 0.618 191.0 ------------------------- 1896.0 0.365 16.9 1897.0 0.364 15.6 1898.0 0.363 14.4 1899.0 0.361 13.1 1900.0 0.359 11.9 1901.0 0.357 10.6 1902.0 0.354 9.3 1903.0 0.351 8.0 1904.0 0.348 6.6 1905.0 0.344 5.2 1906.0 0.340 3.8 1907.0 0.336 2.4 1908.0 0.331 0.9 1909.0 0.326 359.4 1910.0 0.321 357.8 1911.0 0.316 356.2 1912.0 0.310 354.5 1913.0 0.304 352.7 1914.0 0.298 350.9 1915.0 0.292 349.0 1916.0 0.286 347.1 1917.0 0.280 345.0 1918.0 0.274 342.9 1919.0 0.268 340.6 1920.0 0.262 338.3 1921.0 0.256 335.8 1922.0 0.251 333.3 1923.0 0.245 330.6 1924.0 0.240 327.8 1925.0 0.235 324.9 1926.0 0.231 321.8 1927.0 0.226 318.7 1928.0 0.223 315.4 1929.0 0.220 312.0 1930.0 0.217 308.6 1931.0 0.215 305.0 1932.0 0.213 301.4 1933.0 0.213 297.8 1934.0 0.213 294.2 1935.0 0.213 290.5 1936.0 0.214 286.9 1937.0 0.216 283.3 1938.0 0.218 279.9 1939.0 0.221 276.4 1940.0 0.225 273.1 1941.0 0.229 269.9 1942.0 0.234 266.9 1943.0 0.239 263.9 1944.0 0.244 261.1 1945.0 0.250 258.4 1946.0 0.257 255.8 1947.0 0.263 253.4 1948.0 0.270 251.1 1949.0 0.277 248.9 1950.0 0.284 246.8 1951.0 0.291 244.8 1952.0 0.299 242.9 1953.0 0.307 241.1 1954.0 0.314 239.4 1955.0 0.322 237.8 1956.0 0.330 236.2 1957.0 0.338 234.7 1958.0 0.346 233.3 1959.0 0.354 232.0 1960.0 0.362 230.7 1961.0 0.370 229.5 1962.0 0.377 228.3 1963.0 0.385 227.1 1964.0 0.393 226.1 1965.0 0.400 225.0 1966.0 0.408 224.0 1967.0 0.416 223.0 1968.0 0.423 222.1 1969.0 0.430 221.2 1970.0 0.438 220.3 1971.0 0.445 219.5 1972.0 0.452 218.6 1973.0 0.459 217.8 1974.0 0.465 217.1 1975.0 0.472 216.3 1976.0 0.478 215.6 1977.0 0.485 214.9 1978.0 0.491 214.2 1979.0 0.497 213.5 1980.0 0.503 212.9 1981.0 0.509 212.2 1982.0 0.515 211.6 1983.0 0.520 211.0 1984.0 0.526 210.4 1985.0 0.531 209.8 1986.0 0.536 209.2 1987.0 0.541 208.6 1988.0 0.546 208.1 1989.0 0.551 207.5 1990.0 0.555 207.0 1991.0 0.560 206.5 1992.0 0.564 205.9 1993.0 0.568 205.4 1994.0 0.572 204.9 1995.0 0.576 204.4 1996.0 0.579 203.9 1997.0 0.583 203.4 1998.0 0.586 203.0 1999.0 0.589 202.5 2000.0 0.592 202.0 2001.0 0.595 201.5 2002.0 0.598 201.1 2003.0 0.600 200.6 2004.0 0.603 200.2 2005.0 0.605 199.7 2006.0 0.607 199.3 2007.0 0.609 198.8 2008.0 0.611 198.4 2009.0 0.612 197.9 2010.0 0.614 197.5 2011.0 0.615 197.1 2012.0 0.616 196.6 2013.0 0.617 196.2 2014.0 0.618 195.8 2015.0 0.619 195.3 2016.0 0.619 194.9 2017.0 0.620 194.5 2018.0 0.620 194.0 2019.0 0.620 193.6 2020.0 0.620 193.2 2021.0 0.620 192.7 2022.0 0.620 192.3 2023.0 0.619 191.9 2024.0 0.619 191.5 2025.0 0.618 191.0 2026.0 0.617 190.6 2027.0 0.616 190.2 2028.0 0.615 189.7 2029.0 0.613 189.3 2030.0 0.612 188.9 2031.0 0.610 188.4 2032.0 0.608 188.0 2033.0 0.606 187.5 2034.0 0.604 187.1 2035.0 0.602 186.6 2036.0 0.600 186.2 2037.0 0.597 185.7 2038.0 0.595 185.2 2039.0 0.592 184.8 2040.0 0.589 184.3 2041.0 0.586 183.8 2042.0 0.583 183.3 2043.0 0.580 182.8 2044.0 0.576 182.4 2045.0 0.573 181.9 2046.0 0.569 181.4 2047.0 0.565 180.8 2048.0 0.561 180.3 2049.0 0.557 179.8 2050.0 0.553 179.3 2051.0 0.549 178.7 2052.0 0.545 178.2 2053.0 0.540 177.6 2054.0 0.536 177.0 2055.0 0.531 176.5 2056.0 0.526 175.9 2057.0 0.521 175.3 2058.0 0.516 174.7 2059.0 0.511 174.0 2060.0 0.506 173.4 2061.0 0.501 172.7 2062.0 0.495 172.1 2063.0 0.490 171.4 2064.0 0.484 170.7 2065.0 0.478 170.0 2066.0 0.473 169.3 2067.0 0.467 168.5 2068.0 0.461 167.7 2069.0 0.455 167.0 2070.0 0.449 166.2 2071.0 0.443 165.3 2072.0 0.437 164.5 2073.0 0.430 163.6 2074.0 0.424 162.7 2075.0 0.418 161.8 2076.0 0.411 160.8 2077.0 0.405 159.8 2078.0 0.399 158.8 2079.0 0.392 157.7 2080.0 0.386 156.7 2081.0 0.379 155.5 2082.0 0.373 154.4 2083.0 0.366 153.2 2084.0 0.360 151.9 2085.0 0.354 150.6 2086.0 0.347 149.3 2087.0 0.341 147.9 2088.0 0.335 146.4 2089.0 0.329 144.9 2090.0 0.323 143.4 2091.0 0.317 141.8 2092.0 0.311 140.1 2093.0 0.305 138.4 2094.0 0.300 136.6 2095.0 0.295 134.7 2096.0 0.289 132.8 2097.0 0.284 130.8 2098.0 0.280 128.7 2099.0 0.275 126.6 2100.0 0.271 124.4 2101.0 0.267 122.1 2102.0 0.263 119.7 2103.0 0.260 117.3 2104.0 0.257 114.9 2105.0 0.254 112.3 2106.0 0.252 109.8 2107.0 0.250 107.1 2108.0 0.248 104.5 2109.0 0.247 101.8 2110.0 0.247 99.1 2111.0 0.246 96.4 2112.0 0.246 93.7 2113.0 0.247 91.0 2114.0 0.247 88.3 2115.0 0.249 85.6 2116.0 0.250 82.9 2117.0 0.252 80.3 2118.0 0.254 77.7 2119.0 0.257 75.2 2120.0 0.260 72.8 2121.0 0.263 70.3 2122.0 0.266 68.0 2123.0 0.270 65.7 2124.0 0.274 63.5 2125.0 0.278 61.3 2126.0 0.282 59.2 2127.0 0.286 57.1 2128.0 0.291 55.2 2129.0 0.295 53.2 2130.0 0.299 51.4 2131.0 0.304 49.6 2132.0 0.308 47.8 2133.0 0.313 46.1 2134.0 0.317 44.4 2135.0 0.322 42.8 2136.0 0.326 41.3 2137.0 0.330 39.7 2138.0 0.334 38.2 2139.0 0.338 36.8 2140.0 0.342 35.4 2141.0 0.345 34.0 2142.0 0.348 32.6 2143.0 0.351 31.2 2144.0 0.354 29.9 2145.0 0.357 28.6 2146.0 0.359 27.3 2147.0 0.361 26.1 2148.0 0.363 24.8 2149.0 0.364 23.6 2150.0 0.365 22.3 2151.0 0.366 21.1 2152.0 0.366 19.8 2153.0 0.366 18.6