| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:55:52 |
| WDS: | A2913 | WDS ID/Discoverer |
| P: | 257.800 | Orbital period (years) |
| a: | 0.361 | Semi-major axis (arcseconds) |
| i: | 107.6 | Inclination (degrees) |
| Ω: | 167.8 | Longitude of ascending node (degrees) |
| T: | 1990.940 | Epoch of periastron passage (year) |
| e: | 0.75 | Eccentricity |
| ω: | 13.2 | Longitude of periastron (degrees) |
| Start-Year: | 1897.0 | Year |
| End-Year: | 2153.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 040341.72-154511.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04037-1545 | WDS designation |
| Discoverer Code: | A2913 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 25660 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.5 | Magnitude of the primary |
| V2: | 9.5 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2023 | 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 0.325 356.9 ------------------------- 1897.0 0.552 340.1 1898.0 0.549 340.0 1899.0 0.546 339.8 1900.0 0.542 339.7 1901.0 0.539 339.6 1902.0 0.536 339.5 1903.0 0.532 339.3 1904.0 0.529 339.2 1905.0 0.525 339.1 1906.0 0.522 339.0 1907.0 0.518 338.8 1908.0 0.514 338.7 1909.0 0.510 338.5 1910.0 0.506 338.4 1911.0 0.503 338.3 1912.0 0.498 338.1 1913.0 0.494 338.0 1914.0 0.490 337.8 1915.0 0.486 337.7 1916.0 0.481 337.5 1917.0 0.477 337.3 1918.0 0.472 337.2 1919.0 0.468 337.0 1920.0 0.463 336.9 1921.0 0.458 336.7 1922.0 0.454 336.5 1923.0 0.449 336.3 1924.0 0.444 336.1 1925.0 0.439 336.0 1926.0 0.433 335.8 1927.0 0.428 335.6 1928.0 0.423 335.4 1929.0 0.418 335.2 1930.0 0.412 335.0 1931.0 0.406 334.7 1932.0 0.401 334.5 1933.0 0.395 334.3 1934.0 0.389 334.0 1935.0 0.383 333.8 1936.0 0.377 333.6 1937.0 0.371 333.3 1938.0 0.365 333.0 1939.0 0.359 332.7 1940.0 0.352 332.5 1941.0 0.346 332.2 1942.0 0.339 331.8 1943.0 0.333 331.5 1944.0 0.326 331.2 1945.0 0.319 330.8 1946.0 0.312 330.5 1947.0 0.305 330.1 1948.0 0.298 329.7 1949.0 0.291 329.3 1950.0 0.284 328.8 1951.0 0.276 328.4 1952.0 0.269 327.9 1953.0 0.261 327.4 1954.0 0.253 326.8 1955.0 0.245 326.2 1956.0 0.237 325.6 1957.0 0.229 324.9 1958.0 0.221 324.2 1959.0 0.213 323.4 1960.0 0.205 322.6 1961.0 0.196 321.7 1962.0 0.188 320.7 1963.0 0.179 319.6 1964.0 0.170 318.4 1965.0 0.162 317.1 1966.0 0.153 315.6 1967.0 0.144 314.0 1968.0 0.135 312.1 1969.0 0.126 310.0 1970.0 0.117 307.5 1971.0 0.108 304.6 1972.0 0.100 301.3 1973.0 0.091 297.3 1974.0 0.083 292.5 1975.0 0.076 286.7 1976.0 0.069 279.7 1977.0 0.063 271.3 1978.0 0.059 261.4 1979.0 0.056 250.3 1980.0 0.056 238.6 1981.0 0.057 227.0 1982.0 0.060 216.3 1983.0 0.065 206.9 1984.0 0.070 199.0 1985.0 0.076 192.2 1986.0 0.082 186.3 1987.0 0.087 181.2 1988.0 0.090 176.6 1989.0 0.092 172.3 1990.0 0.091 168.0 1991.0 0.088 163.5 1992.0 0.082 158.4 1993.0 0.073 152.3 1994.0 0.063 144.5 1995.0 0.053 133.7 1996.0 0.045 118.5 1997.0 0.040 98.2 1998.0 0.041 75.8 1999.0 0.047 56.5 2000.0 0.056 42.6 2001.0 0.068 33.0 2002.0 0.080 26.3 2003.0 0.092 21.3 2004.0 0.105 17.6 2005.0 0.118 14.6 2006.0 0.130 12.2 2007.0 0.143 10.3 2008.0 0.155 8.6 2009.0 0.167 7.2 2010.0 0.178 6.0 2011.0 0.190 4.9 2012.0 0.201 4.0 2013.0 0.212 3.1 2014.0 0.222 2.3 2015.0 0.233 1.6 2016.0 0.243 1.0 2017.0 0.253 0.4 2018.0 0.263 359.8 2019.0 0.272 359.3 2020.0 0.282 358.9 2021.0 0.291 358.4 2022.0 0.300 358.0 2023.0 0.309 357.6 2024.0 0.317 357.2 2025.0 0.325 356.9 2026.0 0.334 356.5 2027.0 0.342 356.2 2028.0 0.350 355.9 2029.0 0.357 355.6 2030.0 0.365 355.4 2031.0 0.372 355.1 2032.0 0.379 354.8 2033.0 0.386 354.6 2034.0 0.393 354.3 2035.0 0.400 354.1 2036.0 0.407 353.9 2037.0 0.413 353.7 2038.0 0.420 353.5 2039.0 0.426 353.3 2040.0 0.432 353.1 2041.0 0.438 352.9 2042.0 0.444 352.7 2043.0 0.450 352.5 2044.0 0.455 352.3 2045.0 0.461 352.1 2046.0 0.466 352.0 2047.0 0.471 351.8 2048.0 0.476 351.6 2049.0 0.481 351.5 2050.0 0.486 351.3 2051.0 0.491 351.2 2052.0 0.496 351.0 2053.0 0.500 350.9 2054.0 0.505 350.7 2055.0 0.509 350.6 2056.0 0.514 350.5 2057.0 0.518 350.3 2058.0 0.522 350.2 2059.0 0.526 350.1 2060.0 0.530 349.9 2061.0 0.534 349.8 2062.0 0.537 349.7 2063.0 0.541 349.5 2064.0 0.545 349.4 2065.0 0.548 349.3 2066.0 0.551 349.2 2067.0 0.555 349.1 2068.0 0.558 348.9 2069.0 0.561 348.8 2070.0 0.564 348.7 2071.0 0.567 348.6 2072.0 0.570 348.5 2073.0 0.572 348.4 2074.0 0.575 348.3 2075.0 0.578 348.1 2076.0 0.580 348.0 2077.0 0.582 347.9 2078.0 0.585 347.8 2079.0 0.587 347.7 2080.0 0.589 347.6 2081.0 0.591 347.5 2082.0 0.593 347.4 2083.0 0.595 347.3 2084.0 0.597 347.2 2085.0 0.599 347.1 2086.0 0.601 347.0 2087.0 0.602 346.9 2088.0 0.604 346.8 2089.0 0.605 346.7 2090.0 0.607 346.6 2091.0 0.608 346.5 2092.0 0.609 346.4 2093.0 0.611 346.3 2094.0 0.612 346.2 2095.0 0.613 346.1 2096.0 0.614 346.0 2097.0 0.615 345.9 2098.0 0.616 345.8 2099.0 0.616 345.7 2100.0 0.617 345.6 2101.0 0.618 345.5 2102.0 0.618 345.4 2103.0 0.619 345.3 2104.0 0.619 345.2 2105.0 0.619 345.2 2106.0 0.620 345.1 2107.0 0.620 345.0 2108.0 0.620 344.9 2109.0 0.620 344.8 2110.0 0.620 344.7 2111.0 0.620 344.6 2112.0 0.620 344.5 2113.0 0.620 344.4 2114.0 0.619 344.3 2115.0 0.619 344.2 2116.0 0.619 344.1 2117.0 0.618 344.0 2118.0 0.618 343.9 2119.0 0.617 343.8 2120.0 0.616 343.7 2121.0 0.616 343.6 2122.0 0.615 343.5 2123.0 0.614 343.4 2124.0 0.613 343.3 2125.0 0.612 343.2 2126.0 0.611 343.1 2127.0 0.610 343.1 2128.0 0.609 343.0 2129.0 0.608 342.9 2130.0 0.606 342.8 2131.0 0.605 342.7 2132.0 0.603 342.6 2133.0 0.602 342.5 2134.0 0.600 342.4 2135.0 0.599 342.3 2136.0 0.597 342.2 2137.0 0.595 342.1 2138.0 0.593 341.9 2139.0 0.591 341.8 2140.0 0.589 341.7 2141.0 0.587 341.6 2142.0 0.585 341.5 2143.0 0.583 341.4 2144.0 0.581 341.3 2145.0 0.578 341.2 2146.0 0.576 341.1 2147.0 0.573 341.0 2148.0 0.571 340.9 2149.0 0.568 340.8 2150.0 0.566 340.6 2151.0 0.563 340.5 2152.0 0.560 340.4