| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:01:03 |
| WDS: | A2989 | WDS ID/Discoverer |
| P: | 175.000 | Orbital period (years) |
| a: | 0.74 | Semi-major axis (arcseconds) |
| i: | 78.7 | Inclination (degrees) |
| Ω: | 80.9 | Longitude of ascending node (degrees) |
| T: | 1968.300 | Epoch of periastron passage (year) |
| e: | 0.978 | Eccentricity |
| ω: | 281.3 | Longitude of periastron (degrees) |
| Start-Year: | 1938.0 | Year |
| End-Year: | 2112.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 185324.53+255305.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18534+2553 | WDS designation |
| Discoverer Code: | A2989 | Discover designation and components |
| ADS number: | 11802 | Aitken Double Star catalog |
| HD number: | 337117 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 8.9 | Magnitude of the primary |
| V2: | 9.9 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1995 | 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 0.318 205.6 ------------------------- 1938.0 0.389 231.5 1939.0 0.385 231.8 1940.0 0.382 232.1 1941.0 0.378 232.5 1942.0 0.374 232.8 1943.0 0.370 233.1 1944.0 0.365 233.5 1945.0 0.361 233.8 1946.0 0.356 234.2 1947.0 0.351 234.5 1948.0 0.345 234.9 1949.0 0.340 235.3 1950.0 0.334 235.7 1951.0 0.327 236.1 1952.0 0.321 236.6 1953.0 0.313 237.0 1954.0 0.306 237.5 1955.0 0.298 238.0 1956.0 0.289 238.6 1957.0 0.280 239.1 1958.0 0.270 239.7 1959.0 0.259 240.4 1960.0 0.248 241.1 1961.0 0.235 241.9 1962.0 0.221 242.8 1963.0 0.206 243.8 1964.0 0.188 245.0 1965.0 0.167 246.4 1966.0 0.142 248.4 1967.0 0.108 251.3 1968.0 0.047 259.3 1969.0 0.057 95.1 1970.0 0.072 105.9 1971.0 0.081 113.7 1972.0 0.087 120.3 1973.0 0.092 126.1 1974.0 0.096 131.3 1975.0 0.101 136.1 1976.0 0.105 140.4 1977.0 0.109 144.4 1978.0 0.114 148.1 1979.0 0.118 151.5 1980.0 0.123 154.7 1981.0 0.127 157.6 1982.0 0.132 160.4 1983.0 0.137 162.9 1984.0 0.141 165.3 1985.0 0.146 167.5 1986.0 0.151 169.6 1987.0 0.156 171.6 1988.0 0.161 173.4 1989.0 0.165 175.2 1990.0 0.170 176.8 1991.0 0.175 178.3 1992.0 0.180 179.8 1993.0 0.184 181.2 1994.0 0.189 182.5 1995.0 0.194 183.8 1996.0 0.199 185.0 1997.0 0.203 186.1 1998.0 0.208 187.2 1999.0 0.213 188.2 2000.0 0.217 189.2 2001.0 0.222 190.2 2002.0 0.226 191.1 2003.0 0.231 192.0 2004.0 0.235 192.8 2005.0 0.239 193.7 2006.0 0.244 194.5 2007.0 0.248 195.2 2008.0 0.252 195.9 2009.0 0.257 196.7 2010.0 0.261 197.3 2011.0 0.265 198.0 2012.0 0.269 198.7 2013.0 0.273 199.3 2014.0 0.277 199.9 2015.0 0.281 200.5 2016.0 0.285 201.1 2017.0 0.289 201.6 2018.0 0.293 202.2 2019.0 0.297 202.7 2020.0 0.300 203.2 2021.0 0.304 203.7 2022.0 0.308 204.2 2023.0 0.311 204.7 2024.0 0.315 205.2 2025.0 0.318 205.6 2026.0 0.322 206.1 2027.0 0.325 206.5 2028.0 0.329 206.9 2029.0 0.332 207.4 2030.0 0.335 207.8 2031.0 0.338 208.2 2032.0 0.342 208.6 2033.0 0.345 209.0 2034.0 0.348 209.4 2035.0 0.351 209.7 2036.0 0.354 210.1 2037.0 0.357 210.5 2038.0 0.359 210.8 2039.0 0.362 211.2 2040.0 0.365 211.5 2041.0 0.368 211.9 2042.0 0.370 212.2 2043.0 0.373 212.5 2044.0 0.376 212.9 2045.0 0.378 213.2 2046.0 0.381 213.5 2047.0 0.383 213.8 2048.0 0.385 214.1 2049.0 0.388 214.5 2050.0 0.390 214.8 2051.0 0.392 215.1 2052.0 0.394 215.4 2053.0 0.396 215.7 2054.0 0.398 215.9 2055.0 0.400 216.2 2056.0 0.402 216.5 2057.0 0.404 216.8 2058.0 0.406 217.1 2059.0 0.407 217.4 2060.0 0.409 217.6 2061.0 0.411 217.9 2062.0 0.412 218.2 2063.0 0.414 218.5 2064.0 0.415 218.7 2065.0 0.417 219.0 2066.0 0.418 219.3 2067.0 0.419 219.5 2068.0 0.420 219.8 2069.0 0.421 220.0 2070.0 0.422 220.3 2071.0 0.423 220.6 2072.0 0.424 220.8 2073.0 0.425 221.1 2074.0 0.426 221.3 2075.0 0.427 221.6 2076.0 0.427 221.8 2077.0 0.428 222.1 2078.0 0.429 222.3 2079.0 0.429 222.6 2080.0 0.429 222.8 2081.0 0.430 223.1 2082.0 0.430 223.3 2083.0 0.430 223.6 2084.0 0.430 223.8 2085.0 0.430 224.1 2086.0 0.430 224.3 2087.0 0.430 224.6 2088.0 0.429 224.8 2089.0 0.429 225.1 2090.0 0.429 225.3 2091.0 0.428 225.6 2092.0 0.427 225.8 2093.0 0.427 226.1 2094.0 0.426 226.3 2095.0 0.425 226.6 2096.0 0.424 226.8 2097.0 0.423 227.1 2098.0 0.422 227.4 2099.0 0.420 227.6 2100.0 0.419 227.9 2101.0 0.417 228.1 2102.0 0.416 228.4 2103.0 0.414 228.7 2104.0 0.412 228.9 2105.0 0.410 229.2 2106.0 0.408 229.5 2107.0 0.406 229.8 2108.0 0.403 230.0 2109.0 0.401 230.3 2110.0 0.398 230.6 2111.0 0.395 230.9