| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:44:56 |
| WDS: | A2984 | WDS ID/Discoverer |
| P: | 140.760 | Orbital period (years) |
| a: | 0.959 | Semi-major axis (arcseconds) |
| i: | 65.1 | Inclination (degrees) |
| Ω: | 220.5 | Longitude of ascending node (degrees) |
| T: | 1890.530 | Epoch of periastron passage (year) |
| e: | 0.866 | Eccentricity |
| ω: | 287.5 | Longitude of periastron (degrees) |
| Start-Year: | 1955.0 | Year |
| End-Year: | 2095.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 171636.69-002643.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17166-0027 | WDS designation |
| Discoverer Code: | A2984 | Discover designation and components |
| ADS number: | 10429 | Aitken Double Star catalog |
| HD number: | 156266 | HD catalog number |
| Hipparcos number: | 84514 | Hipparcos catalog number |
| V1: | 4.92 | Magnitude of the primary |
| V2: | 7.51 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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 0.494 31.2 ------------------------- 1955.0 0.863 343.6 1956.0 0.869 344.2 1957.0 0.875 344.9 1958.0 0.881 345.5 1959.0 0.887 346.1 1960.0 0.893 346.8 1961.0 0.898 347.4 1962.0 0.904 348.0 1963.0 0.909 348.6 1964.0 0.914 349.2 1965.0 0.918 349.8 1966.0 0.923 350.4 1967.0 0.927 350.9 1968.0 0.931 351.5 1969.0 0.935 352.1 1970.0 0.939 352.7 1971.0 0.943 353.2 1972.0 0.946 353.8 1973.0 0.949 354.3 1974.0 0.952 354.9 1975.0 0.955 355.4 1976.0 0.957 356.0 1977.0 0.960 356.5 1978.0 0.962 357.0 1979.0 0.963 357.6 1980.0 0.965 358.1 1981.0 0.966 358.6 1982.0 0.967 359.2 1983.0 0.968 359.7 1984.0 0.968 0.2 1985.0 0.968 0.7 1986.0 0.968 1.3 1987.0 0.967 1.8 1988.0 0.967 2.3 1989.0 0.965 2.9 1990.0 0.964 3.4 1991.0 0.962 3.9 1992.0 0.960 4.5 1993.0 0.957 5.0 1994.0 0.955 5.5 1995.0 0.951 6.1 1996.0 0.947 6.6 1997.0 0.943 7.2 1998.0 0.939 7.8 1999.0 0.934 8.3 2000.0 0.928 8.9 2001.0 0.922 9.5 2002.0 0.916 10.1 2003.0 0.908 10.6 2004.0 0.901 11.3 2005.0 0.892 11.9 2006.0 0.883 12.5 2007.0 0.874 13.1 2008.0 0.864 13.8 2009.0 0.852 14.5 2010.0 0.841 15.2 2011.0 0.828 15.9 2012.0 0.814 16.6 2013.0 0.799 17.4 2014.0 0.784 18.2 2015.0 0.767 19.0 2016.0 0.749 19.8 2017.0 0.729 20.7 2018.0 0.708 21.7 2019.0 0.685 22.7 2020.0 0.660 23.8 2021.0 0.633 25.0 2022.0 0.603 26.3 2023.0 0.571 27.7 2024.0 0.534 29.4 2025.0 0.494 31.2 2026.0 0.448 33.5 2027.0 0.394 36.3 2028.0 0.331 40.0 2029.0 0.254 45.9 2030.0 0.156 58.1 2031.0 0.056 124.0 2032.0 0.136 208.4 2033.0 0.213 224.8 2034.0 0.260 233.6 2035.0 0.292 240.1 2036.0 0.316 245.5 2037.0 0.334 250.1 2038.0 0.350 254.4 2039.0 0.363 258.3 2040.0 0.375 261.9 2041.0 0.387 265.3 2042.0 0.397 268.5 2043.0 0.407 271.6 2044.0 0.417 274.5 2045.0 0.426 277.3 2046.0 0.436 280.0 2047.0 0.445 282.5 2048.0 0.454 285.0 2049.0 0.463 287.3 2050.0 0.472 289.6 2051.0 0.482 291.8 2052.0 0.491 293.9 2053.0 0.500 295.9 2054.0 0.509 297.8 2055.0 0.519 299.7 2056.0 0.528 301.5 2057.0 0.537 303.3 2058.0 0.547 305.0 2059.0 0.556 306.6 2060.0 0.565 308.2 2061.0 0.575 309.7 2062.0 0.584 311.2 2063.0 0.594 312.6 2064.0 0.603 314.0 2065.0 0.612 315.3 2066.0 0.622 316.6 2067.0 0.631 317.9 2068.0 0.640 319.1 2069.0 0.649 320.3 2070.0 0.658 321.4 2071.0 0.668 322.6 2072.0 0.677 323.7 2073.0 0.685 324.7 2074.0 0.694 325.8 2075.0 0.703 326.8 2076.0 0.712 327.8 2077.0 0.721 328.7 2078.0 0.729 329.7 2079.0 0.738 330.6 2080.0 0.746 331.5 2081.0 0.754 332.4 2082.0 0.763 333.3 2083.0 0.771 334.1 2084.0 0.779 334.9 2085.0 0.786 335.7 2086.0 0.794 336.5 2087.0 0.802 337.3 2088.0 0.809 338.1 2089.0 0.817 338.8 2090.0 0.824 339.5 2091.0 0.831 340.3 2092.0 0.838 341.0 2093.0 0.845 341.7 2094.0 0.852 342.4