| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:28:18 |
| WDS: | I263 | WDS ID/Discoverer |
| P: | 272.150 | Orbital period (years) |
| a: | 0.791 | Semi-major axis (arcseconds) |
| i: | 68.6 | Inclination (degrees) |
| Ω: | 231.3 | Longitude of ascending node (degrees) |
| T: | 1936.560 | Epoch of periastron passage (year) |
| e: | 0.374 | Eccentricity |
| ω: | 297.3 | Longitude of periastron (degrees) |
| Start-Year: | 1889.0 | Year |
| End-Year: | 2161.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 012158.64-694307.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 01220-6943 | WDS designation |
| Discoverer Code: | I263 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 8519 | HD catalog number |
| Hipparcos number: | 6377 | Hipparcos catalog number |
| V1: | 7.66 | Magnitude of the primary |
| V2: | 8.61 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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 0.373 306.2 ------------------------- 1889.0 0.750 55.3 1890.0 0.740 55.8 1891.0 0.729 56.3 1892.0 0.718 56.8 1893.0 0.707 57.4 1894.0 0.696 58.0 1895.0 0.684 58.5 1896.0 0.671 59.2 1897.0 0.658 59.8 1898.0 0.645 60.4 1899.0 0.631 61.1 1900.0 0.617 61.9 1901.0 0.603 62.6 1902.0 0.588 63.4 1903.0 0.573 64.2 1904.0 0.557 65.1 1905.0 0.541 66.0 1906.0 0.524 67.0 1907.0 0.507 68.1 1908.0 0.490 69.2 1909.0 0.473 70.4 1910.0 0.455 71.7 1911.0 0.437 73.1 1912.0 0.418 74.7 1913.0 0.400 76.3 1914.0 0.381 78.2 1915.0 0.362 80.2 1916.0 0.344 82.4 1917.0 0.325 85.0 1918.0 0.306 87.8 1919.0 0.288 90.9 1920.0 0.271 94.5 1921.0 0.254 98.6 1922.0 0.238 103.2 1923.0 0.224 108.5 1924.0 0.211 114.4 1925.0 0.201 121.0 1926.0 0.193 128.3 1927.0 0.188 136.0 1928.0 0.186 144.1 1929.0 0.188 152.1 1930.0 0.192 159.9 1931.0 0.200 167.2 1932.0 0.210 173.8 1933.0 0.223 179.8 1934.0 0.237 185.1 1935.0 0.252 189.8 1936.0 0.269 193.9 1937.0 0.286 197.6 1938.0 0.303 200.8 1939.0 0.321 203.7 1940.0 0.338 206.3 1941.0 0.356 208.6 1942.0 0.373 210.7 1943.0 0.390 212.7 1944.0 0.407 214.4 1945.0 0.423 216.0 1946.0 0.438 217.6 1947.0 0.453 219.0 1948.0 0.468 220.3 1949.0 0.481 221.5 1950.0 0.495 222.7 1951.0 0.507 223.8 1952.0 0.519 224.9 1953.0 0.530 225.9 1954.0 0.540 226.9 1955.0 0.550 227.8 1956.0 0.558 228.7 1957.0 0.567 229.6 1958.0 0.574 230.5 1959.0 0.581 231.3 1960.0 0.587 232.2 1961.0 0.593 233.0 1962.0 0.598 233.7 1963.0 0.602 234.5 1964.0 0.606 235.3 1965.0 0.609 236.1 1966.0 0.611 236.8 1967.0 0.613 237.6 1968.0 0.615 238.3 1969.0 0.616 239.0 1970.0 0.616 239.8 1971.0 0.616 240.5 1972.0 0.616 241.2 1973.0 0.615 242.0 1974.0 0.614 242.7 1975.0 0.612 243.5 1976.0 0.610 244.2 1977.0 0.608 245.0 1978.0 0.605 245.7 1979.0 0.602 246.5 1980.0 0.599 247.3 1981.0 0.595 248.1 1982.0 0.591 248.9 1983.0 0.587 249.7 1984.0 0.583 250.5 1985.0 0.578 251.3 1986.0 0.573 252.2 1987.0 0.568 253.0 1988.0 0.563 253.9 1989.0 0.557 254.8 1990.0 0.552 255.7 1991.0 0.546 256.6 1992.0 0.540 257.6 1993.0 0.534 258.6 1994.0 0.528 259.6 1995.0 0.522 260.6 1996.0 0.516 261.6 1997.0 0.510 262.7 1998.0 0.503 263.8 1999.0 0.497 264.9 2000.0 0.491 266.0 2001.0 0.484 267.2 2002.0 0.478 268.4 2003.0 0.472 269.7 2004.0 0.466 270.9 2005.0 0.459 272.2 2006.0 0.453 273.6 2007.0 0.447 275.0 2008.0 0.441 276.4 2009.0 0.436 277.9 2010.0 0.430 279.3 2011.0 0.425 280.9 2012.0 0.419 282.5 2013.0 0.414 284.1 2014.0 0.409 285.7 2015.0 0.405 287.4 2016.0 0.400 289.1 2017.0 0.396 290.9 2018.0 0.392 292.7 2019.0 0.388 294.6 2020.0 0.385 296.4 2021.0 0.382 298.3 2022.0 0.379 300.3 2023.0 0.377 302.2 2024.0 0.375 304.2 2025.0 0.373 306.2 2026.0 0.372 308.2 2027.0 0.371 310.3 2028.0 0.370 312.3 2029.0 0.370 314.4 2030.0 0.370 316.4 2031.0 0.370 318.5 2032.0 0.371 320.5 2033.0 0.373 322.5 2034.0 0.374 324.5 2035.0 0.376 326.5 2036.0 0.379 328.5 2037.0 0.381 330.4 2038.0 0.384 332.3 2039.0 0.388 334.2 2040.0 0.391 336.1 2041.0 0.395 337.9 2042.0 0.400 339.6 2043.0 0.404 341.4 2044.0 0.409 343.1 2045.0 0.414 344.7 2046.0 0.420 346.3 2047.0 0.425 347.9 2048.0 0.431 349.4 2049.0 0.437 350.9 2050.0 0.443 352.4 2051.0 0.450 353.8 2052.0 0.456 355.1 2053.0 0.463 356.5 2054.0 0.470 357.7 2055.0 0.477 359.0 2056.0 0.484 0.2 2057.0 0.491 1.4 2058.0 0.498 2.5 2059.0 0.506 3.7 2060.0 0.513 4.7 2061.0 0.520 5.8 2062.0 0.528 6.8 2063.0 0.536 7.8 2064.0 0.543 8.8 2065.0 0.551 9.7 2066.0 0.559 10.6 2067.0 0.567 11.5 2068.0 0.574 12.3 2069.0 0.582 13.2 2070.0 0.590 14.0 2071.0 0.598 14.8 2072.0 0.606 15.6 2073.0 0.613 16.3 2074.0 0.621 17.1 2075.0 0.629 17.8 2076.0 0.636 18.5 2077.0 0.644 19.2 2078.0 0.652 19.8 2079.0 0.659 20.5 2080.0 0.667 21.1 2081.0 0.674 21.7 2082.0 0.681 22.3 2083.0 0.689 22.9 2084.0 0.696 23.5 2085.0 0.703 24.1 2086.0 0.710 24.7 2087.0 0.717 25.2 2088.0 0.724 25.7 2089.0 0.731 26.3 2090.0 0.738 26.8 2091.0 0.744 27.3 2092.0 0.751 27.8 2093.0 0.757 28.3 2094.0 0.764 28.8 2095.0 0.770 29.3 2096.0 0.776 29.7 2097.0 0.782 30.2 2098.0 0.788 30.6 2099.0 0.793 31.1 2100.0 0.799 31.5 2101.0 0.805 32.0 2102.0 0.810 32.4 2103.0 0.815 32.8 2104.0 0.820 33.2 2105.0 0.825 33.7 2106.0 0.830 34.1 2107.0 0.834 34.5 2108.0 0.839 34.9 2109.0 0.843 35.3 2110.0 0.847 35.7 2111.0 0.851 36.0 2112.0 0.855 36.4 2113.0 0.859 36.8 2114.0 0.862 37.2 2115.0 0.865 37.6 2116.0 0.868 37.9 2117.0 0.871 38.3 2118.0 0.874 38.7 2119.0 0.876 39.0 2120.0 0.879 39.4 2121.0 0.881 39.8 2122.0 0.883 40.1 2123.0 0.884 40.5 2124.0 0.886 40.8 2125.0 0.887 41.2 2126.0 0.888 41.6 2127.0 0.889 41.9 2128.0 0.890 42.3 2129.0 0.890 42.6 2130.0 0.890 43.0 2131.0 0.890 43.3 2132.0 0.889 43.7 2133.0 0.889 44.0 2134.0 0.888 44.4 2135.0 0.887 44.7 2136.0 0.885 45.1 2137.0 0.884 45.5 2138.0 0.882 45.8 2139.0 0.880 46.2 2140.0 0.877 46.5 2141.0 0.874 46.9 2142.0 0.871 47.3 2143.0 0.868 47.6 2144.0 0.864 48.0 2145.0 0.860 48.4 2146.0 0.856 48.8 2147.0 0.851 49.2 2148.0 0.846 49.5 2149.0 0.841 49.9 2150.0 0.836 50.3 2151.0 0.830 50.7 2152.0 0.824 51.2 2153.0 0.817 51.6 2154.0 0.810 52.0 2155.0 0.803 52.4 2156.0 0.795 52.9 2157.0 0.787 53.3 2158.0 0.779 53.8 2159.0 0.770 54.2 2160.0 0.761 54.7