| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:17:14 |
| WDS: | HDO181 | WDS ID/Discoverer |
| P: | 201.900 | Orbital period (years) |
| a: | 0.4 | Semi-major axis (arcseconds) |
| i: | 158.6 | Inclination (degrees) |
| Ω: | 141.5 | Longitude of ascending node (degrees) |
| T: | 1981.290 | Epoch of periastron passage (year) |
| e: | 0.38 | Eccentricity |
| ω: | 13.2 | Longitude of periastron (degrees) |
| Start-Year: | 1925.0 | Year |
| End-Year: | 2125.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 000902.35-540007.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00090-5400 | WDS designation |
| Discoverer Code: | HDO181 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 469 | HD catalog number |
| Hipparcos number: | 730 | Hipparcos catalog number |
| V1: | 6.74 | Magnitude of the primary |
| V2: | 8.07 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2018 | 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 0.410 5.5 ------------------------- 1925.0 0.452 267.4 1926.0 0.448 266.2 1927.0 0.444 265.0 1928.0 0.440 263.7 1929.0 0.436 262.4 1930.0 0.432 261.1 1931.0 0.428 259.8 1932.0 0.423 258.4 1933.0 0.419 257.0 1934.0 0.414 255.6 1935.0 0.410 254.2 1936.0 0.406 252.7 1937.0 0.401 251.2 1938.0 0.396 249.6 1939.0 0.392 248.1 1940.0 0.387 246.4 1941.0 0.383 244.8 1942.0 0.378 243.1 1943.0 0.373 241.3 1944.0 0.369 239.6 1945.0 0.364 237.7 1946.0 0.359 235.8 1947.0 0.355 233.9 1948.0 0.350 231.9 1949.0 0.345 229.9 1950.0 0.341 227.8 1951.0 0.336 225.7 1952.0 0.332 223.5 1953.0 0.327 221.2 1954.0 0.323 218.9 1955.0 0.318 216.5 1956.0 0.314 214.0 1957.0 0.310 211.5 1958.0 0.306 208.9 1959.0 0.302 206.2 1960.0 0.298 203.5 1961.0 0.294 200.7 1962.0 0.290 197.8 1963.0 0.287 194.9 1964.0 0.283 191.8 1965.0 0.280 188.7 1966.0 0.277 185.5 1967.0 0.273 182.3 1968.0 0.271 179.0 1969.0 0.268 175.6 1970.0 0.265 172.1 1971.0 0.263 168.6 1972.0 0.260 165.0 1973.0 0.258 161.4 1974.0 0.256 157.6 1975.0 0.254 153.9 1976.0 0.253 150.1 1977.0 0.251 146.2 1978.0 0.250 142.3 1979.0 0.249 138.3 1980.0 0.248 134.4 1981.0 0.247 130.3 1982.0 0.247 126.3 1983.0 0.247 122.3 1984.0 0.246 118.2 1985.0 0.247 114.2 1986.0 0.247 110.2 1987.0 0.248 106.2 1988.0 0.249 102.2 1989.0 0.250 98.2 1990.0 0.252 94.3 1991.0 0.253 90.5 1992.0 0.256 86.7 1993.0 0.258 82.9 1994.0 0.261 79.3 1995.0 0.264 75.7 1996.0 0.267 72.2 1997.0 0.270 68.8 1998.0 0.274 65.5 1999.0 0.278 62.2 2000.0 0.282 59.1 2001.0 0.286 56.1 2002.0 0.291 53.1 2003.0 0.295 50.2 2004.0 0.300 47.5 2005.0 0.305 44.8 2006.0 0.310 42.2 2007.0 0.315 39.7 2008.0 0.320 37.2 2009.0 0.325 34.9 2010.0 0.331 32.6 2011.0 0.336 30.4 2012.0 0.341 28.2 2013.0 0.347 26.2 2014.0 0.352 24.2 2015.0 0.358 22.2 2016.0 0.363 20.3 2017.0 0.368 18.5 2018.0 0.374 16.7 2019.0 0.379 15.0 2020.0 0.384 13.3 2021.0 0.390 11.6 2022.0 0.395 10.0 2023.0 0.400 8.5 2024.0 0.405 7.0 2025.0 0.410 5.5 2026.0 0.415 4.0 2027.0 0.420 2.6 2028.0 0.425 1.2 2029.0 0.429 359.9 2030.0 0.434 358.6 2031.0 0.439 357.3 2032.0 0.443 356.0 2033.0 0.448 354.8 2034.0 0.452 353.6 2035.0 0.456 352.4 2036.0 0.460 351.2 2037.0 0.464 350.1 2038.0 0.468 348.9 2039.0 0.472 347.8 2040.0 0.476 346.7 2041.0 0.480 345.6 2042.0 0.483 344.6 2043.0 0.487 343.5 2044.0 0.490 342.5 2045.0 0.494 341.5 2046.0 0.497 340.5 2047.0 0.500 339.5 2048.0 0.503 338.5 2049.0 0.506 337.6 2050.0 0.509 336.6 2051.0 0.512 335.7 2052.0 0.514 334.7 2053.0 0.517 333.8 2054.0 0.520 332.9 2055.0 0.522 332.0 2056.0 0.524 331.1 2057.0 0.526 330.2 2058.0 0.528 329.3 2059.0 0.530 328.4 2060.0 0.532 327.6 2061.0 0.534 326.7 2062.0 0.536 325.9 2063.0 0.538 325.0 2064.0 0.539 324.2 2065.0 0.540 323.3 2066.0 0.542 322.5 2067.0 0.543 321.6 2068.0 0.544 320.8 2069.0 0.545 320.0 2070.0 0.546 319.1 2071.0 0.547 318.3 2072.0 0.548 317.5 2073.0 0.548 316.7 2074.0 0.549 315.9 2075.0 0.549 315.1 2076.0 0.550 314.2 2077.0 0.550 313.4 2078.0 0.550 312.6 2079.0 0.550 311.8 2080.0 0.550 311.0 2081.0 0.550 310.2 2082.0 0.550 309.4 2083.0 0.550 308.6 2084.0 0.550 307.8 2085.0 0.549 306.9 2086.0 0.548 306.1 2087.0 0.548 305.3 2088.0 0.547 304.5 2089.0 0.546 303.7 2090.0 0.545 302.8 2091.0 0.544 302.0 2092.0 0.543 301.2 2093.0 0.542 300.3 2094.0 0.541 299.5 2095.0 0.539 298.7 2096.0 0.538 297.8 2097.0 0.537 297.0 2098.0 0.535 296.1 2099.0 0.533 295.2 2100.0 0.531 294.4 2101.0 0.529 293.5 2102.0 0.528 292.6 2103.0 0.525 291.7 2104.0 0.523 290.8 2105.0 0.521 289.9 2106.0 0.519 289.0 2107.0 0.516 288.1 2108.0 0.514 287.2 2109.0 0.511 286.3 2110.0 0.509 285.3 2111.0 0.506 284.4 2112.0 0.503 283.4 2113.0 0.500 282.4 2114.0 0.497 281.4 2115.0 0.494 280.4 2116.0 0.491 279.4 2117.0 0.488 278.4 2118.0 0.485 277.4 2119.0 0.481 276.3 2120.0 0.478 275.2 2121.0 0.474 274.2 2122.0 0.471 273.1 2123.0 0.467 271.9 2124.0 0.463 270.8