| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:17:04 |
| WDS: | COU2542 | WDS ID/Discoverer |
| P: | 202.100 | Orbital period (years) |
| a: | 0.477 | Semi-major axis (arcseconds) |
| i: | 76.2 | Inclination (degrees) |
| Ω: | 76.5 | Longitude of ascending node (degrees) |
| T: | 2023.900 | Epoch of periastron passage (year) |
| e: | 0.374 | Eccentricity |
| ω: | 136.3 | Longitude of periastron (degrees) |
| Start-Year: | 1924.0 | Year |
| End-Year: | 2126.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 205257.26+425825.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20530+4258 | WDS designation |
| Discoverer Code: | COU2542 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | 103067 | Hipparcos catalog number |
| V1: | 10.46 | Magnitude of the primary |
| V2: | 12.03 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | Date of last observation | |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.236 245.5 ------------------------- 1924.0 0.493 64.1 1925.0 0.499 64.5 1926.0 0.505 64.8 1927.0 0.511 65.2 1928.0 0.517 65.5 1929.0 0.522 65.8 1930.0 0.527 66.2 1931.0 0.532 66.5 1932.0 0.537 66.8 1933.0 0.542 67.1 1934.0 0.546 67.4 1935.0 0.551 67.7 1936.0 0.555 68.0 1937.0 0.559 68.3 1938.0 0.562 68.6 1939.0 0.566 68.8 1940.0 0.569 69.1 1941.0 0.572 69.4 1942.0 0.575 69.7 1943.0 0.577 69.9 1944.0 0.580 70.2 1945.0 0.582 70.5 1946.0 0.584 70.7 1947.0 0.586 71.0 1948.0 0.587 71.3 1949.0 0.588 71.5 1950.0 0.589 71.8 1951.0 0.590 72.0 1952.0 0.591 72.3 1953.0 0.591 72.6 1954.0 0.591 72.8 1955.0 0.591 73.1 1956.0 0.590 73.3 1957.0 0.589 73.6 1958.0 0.588 73.8 1959.0 0.587 74.1 1960.0 0.585 74.4 1961.0 0.584 74.6 1962.0 0.581 74.9 1963.0 0.579 75.2 1964.0 0.576 75.4 1965.0 0.573 75.7 1966.0 0.570 76.0 1967.0 0.566 76.2 1968.0 0.562 76.5 1969.0 0.558 76.8 1970.0 0.553 77.1 1971.0 0.548 77.4 1972.0 0.543 77.7 1973.0 0.537 78.0 1974.0 0.531 78.3 1975.0 0.525 78.6 1976.0 0.518 79.0 1977.0 0.511 79.3 1978.0 0.504 79.7 1979.0 0.496 80.0 1980.0 0.488 80.4 1981.0 0.479 80.8 1982.0 0.470 81.2 1983.0 0.461 81.6 1984.0 0.451 82.0 1985.0 0.441 82.5 1986.0 0.431 82.9 1987.0 0.420 83.4 1988.0 0.409 84.0 1989.0 0.397 84.5 1990.0 0.385 85.1 1991.0 0.373 85.7 1992.0 0.360 86.4 1993.0 0.347 87.1 1994.0 0.333 87.9 1995.0 0.319 88.7 1996.0 0.305 89.6 1997.0 0.290 90.7 1998.0 0.275 91.8 1999.0 0.260 93.0 2000.0 0.244 94.5 2001.0 0.228 96.1 2002.0 0.212 97.9 2003.0 0.196 100.1 2004.0 0.179 102.6 2005.0 0.163 105.7 2006.0 0.147 109.4 2007.0 0.131 114.1 2008.0 0.116 120.0 2009.0 0.103 127.5 2010.0 0.091 137.1 2011.0 0.083 149.0 2012.0 0.078 163.0 2013.0 0.078 177.8 2014.0 0.083 191.6 2015.0 0.092 203.3 2016.0 0.104 212.7 2017.0 0.118 220.0 2018.0 0.132 225.7 2019.0 0.148 230.3 2020.0 0.163 234.0 2021.0 0.179 237.1 2022.0 0.194 239.7 2023.0 0.209 241.9 2024.0 0.223 243.8 2025.0 0.236 245.5 2026.0 0.249 247.1 2027.0 0.261 248.4 2028.0 0.272 249.7 2029.0 0.282 250.9 2030.0 0.292 252.0 2031.0 0.300 253.0 2032.0 0.307 253.9 2033.0 0.314 254.9 2034.0 0.319 255.8 2035.0 0.324 256.6 2036.0 0.327 257.5 2037.0 0.330 258.3 2038.0 0.331 259.1 2039.0 0.332 260.0 2040.0 0.333 260.8 2041.0 0.332 261.6 2042.0 0.330 262.4 2043.0 0.328 263.2 2044.0 0.326 264.1 2045.0 0.322 264.9 2046.0 0.318 265.8 2047.0 0.314 266.7 2048.0 0.309 267.6 2049.0 0.304 268.6 2050.0 0.298 269.5 2051.0 0.292 270.6 2052.0 0.285 271.7 2053.0 0.278 272.8 2054.0 0.271 274.0 2055.0 0.264 275.2 2056.0 0.256 276.5 2057.0 0.249 278.0 2058.0 0.241 279.4 2059.0 0.233 281.0 2060.0 0.225 282.8 2061.0 0.217 284.6 2062.0 0.209 286.6 2063.0 0.201 288.7 2064.0 0.193 291.0 2065.0 0.186 293.5 2066.0 0.178 296.2 2067.0 0.171 299.2 2068.0 0.164 302.4 2069.0 0.158 305.8 2070.0 0.152 309.6 2071.0 0.147 313.6 2072.0 0.142 317.9 2073.0 0.138 322.5 2074.0 0.135 327.3 2075.0 0.133 332.3 2076.0 0.132 337.4 2077.0 0.131 342.6 2078.0 0.132 347.8 2079.0 0.134 352.9 2080.0 0.137 357.8 2081.0 0.140 2.4 2082.0 0.145 6.9 2083.0 0.150 11.0 2084.0 0.156 14.8 2085.0 0.162 18.4 2086.0 0.169 21.7 2087.0 0.176 24.7 2088.0 0.183 27.5 2089.0 0.191 30.1 2090.0 0.200 32.4 2091.0 0.208 34.6 2092.0 0.216 36.6 2093.0 0.225 38.4 2094.0 0.234 40.1 2095.0 0.243 41.7 2096.0 0.252 43.2 2097.0 0.261 44.5 2098.0 0.270 45.8 2099.0 0.279 47.0 2100.0 0.288 48.1 2101.0 0.297 49.2 2102.0 0.306 50.1 2103.0 0.315 51.1 2104.0 0.323 52.0 2105.0 0.332 52.8 2106.0 0.341 53.6 2107.0 0.350 54.3 2108.0 0.358 55.1 2109.0 0.367 55.7 2110.0 0.375 56.4 2111.0 0.383 57.0 2112.0 0.391 57.6 2113.0 0.400 58.2 2114.0 0.408 58.7 2115.0 0.415 59.3 2116.0 0.423 59.8 2117.0 0.431 60.3 2118.0 0.438 60.7 2119.0 0.445 61.2 2120.0 0.453 61.6 2121.0 0.460 62.1 2122.0 0.467 62.5 2123.0 0.473 62.9 2124.0 0.480 63.3 2125.0 0.486 63.7