| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:59:28 |
| WDS: | A253 | WDS ID/Discoverer |
| P: | 98.570 | Orbital period (years) |
| a: | 0.47 | Semi-major axis (arcseconds) |
| i: | 57.5 | Inclination (degrees) |
| Ω: | 297.5 | Longitude of ascending node (degrees) |
| T: | 1942.280 | Epoch of periastron passage (year) |
| e: | 0.78 | Eccentricity |
| ω: | 12.0 | Longitude of periastron (degrees) |
| Start-Year: | 1976.0 | Year |
| End-Year: | 2074.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 184343.55+314054.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18437+3141 | WDS designation |
| Discoverer Code: | A253 | Discover designation and components |
| ADS number: | 11623 | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | 91868 | Hipparcos catalog number |
| V1: | 9.71 | Magnitude of the primary |
| V2: | 10.29 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 1983 | 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 0.441 144.9 ------------------------- 1976.0 0.778 117.6 1977.0 0.786 118.1 1978.0 0.792 118.5 1979.0 0.798 118.9 1980.0 0.804 119.3 1981.0 0.809 119.8 1982.0 0.813 120.2 1983.0 0.816 120.6 1984.0 0.819 121.0 1985.0 0.822 121.4 1986.0 0.824 121.8 1987.0 0.825 122.2 1988.0 0.826 122.6 1989.0 0.826 123.0 1990.0 0.825 123.4 1991.0 0.824 123.8 1992.0 0.823 124.2 1993.0 0.821 124.6 1994.0 0.818 125.0 1995.0 0.815 125.4 1996.0 0.811 125.8 1997.0 0.807 126.2 1998.0 0.802 126.6 1999.0 0.797 127.1 2000.0 0.791 127.5 2001.0 0.784 127.9 2002.0 0.777 128.4 2003.0 0.770 128.8 2004.0 0.762 129.3 2005.0 0.753 129.8 2006.0 0.743 130.3 2007.0 0.733 130.8 2008.0 0.723 131.3 2009.0 0.712 131.8 2010.0 0.700 132.3 2011.0 0.688 132.9 2012.0 0.675 133.5 2013.0 0.661 134.1 2014.0 0.647 134.7 2015.0 0.632 135.4 2016.0 0.616 136.1 2017.0 0.600 136.8 2018.0 0.582 137.6 2019.0 0.565 138.4 2020.0 0.546 139.3 2021.0 0.527 140.2 2022.0 0.507 141.3 2023.0 0.486 142.4 2024.0 0.464 143.6 2025.0 0.441 144.9 2026.0 0.417 146.4 2027.0 0.393 148.0 2028.0 0.368 149.9 2029.0 0.341 152.1 2030.0 0.314 154.6 2031.0 0.286 157.6 2032.0 0.257 161.3 2033.0 0.227 166.0 2034.0 0.197 172.1 2035.0 0.167 180.3 2036.0 0.140 191.9 2037.0 0.117 208.7 2038.0 0.103 231.6 2039.0 0.102 257.9 2040.0 0.106 283.1 2041.0 0.100 308.0 2042.0 0.082 341.1 2043.0 0.083 23.4 2044.0 0.111 53.8 2045.0 0.150 70.2 2046.0 0.190 79.8 2047.0 0.230 86.0 2048.0 0.267 90.4 2049.0 0.303 93.7 2050.0 0.337 96.4 2051.0 0.369 98.6 2052.0 0.399 100.4 2053.0 0.428 102.0 2054.0 0.455 103.4 2055.0 0.480 104.6 2056.0 0.505 105.7 2057.0 0.528 106.7 2058.0 0.550 107.7 2059.0 0.570 108.5 2060.0 0.590 109.4 2061.0 0.609 110.1 2062.0 0.626 110.8 2063.0 0.643 111.5 2064.0 0.659 112.1 2065.0 0.674 112.7 2066.0 0.688 113.3 2067.0 0.701 113.9 2068.0 0.714 114.4 2069.0 0.726 115.0 2070.0 0.737 115.5 2071.0 0.747 116.0 2072.0 0.757 116.4 2073.0 0.766 116.9