| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:51:16 |
| WDS: | TRN2AA,AB | WDS ID/Discoverer |
| P: | 98.900 | Orbital period (years) |
| a: | 2.9 | Semi-major axis (arcseconds) |
| i: | 62.82 | Inclination (degrees) |
| Ω: | 80.4 | Longitude of ascending node (degrees) |
| T: | 1921.100 | Epoch of periastron passage (year) |
| e: | 0.44 | Eccentricity |
| ω: | 214.0 | Longitude of periastron (degrees) |
| Start-Year: | 1976.0 | Year |
| End-Year: | 2074.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 174627.51+274314.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17465+2743 | WDS designation |
| Discoverer Code: | TRN2AA,AB | Discover designation and components |
| ADS number: | 10786 | Aitken Double Star catalog |
| HD number: | 161797 | HD catalog number |
| Hipparcos number: | 86974 | Hipparcos catalog number |
| V1: | 3.49 | Magnitude of the primary |
| V2: | 12.7 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 5 | 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 0.854 334.1 ------------------------- 1976.0 3.303 103.2 1977.0 3.233 104.4 1978.0 3.161 105.6 1979.0 3.085 106.9 1980.0 3.006 108.3 1981.0 2.925 109.7 1982.0 2.841 111.2 1983.0 2.755 112.8 1984.0 2.667 114.5 1985.0 2.578 116.3 1986.0 2.487 118.3 1987.0 2.395 120.4 1988.0 2.302 122.7 1989.0 2.209 125.2 1990.0 2.116 127.8 1991.0 2.024 130.8 1992.0 1.934 134.0 1993.0 1.847 137.5 1994.0 1.763 141.4 1995.0 1.684 145.6 1996.0 1.610 150.2 1997.0 1.544 155.3 1998.0 1.487 160.7 1999.0 1.440 166.6 2000.0 1.405 172.8 2001.0 1.382 179.3 2002.0 1.372 185.9 2003.0 1.375 192.6 2004.0 1.391 199.2 2005.0 1.418 205.6 2006.0 1.454 211.7 2007.0 1.498 217.4 2008.0 1.546 222.9 2009.0 1.596 228.0 2010.0 1.646 232.7 2011.0 1.691 237.2 2012.0 1.729 241.5 2013.0 1.756 245.7 2014.0 1.769 249.7 2015.0 1.765 253.7 2016.0 1.740 257.8 2017.0 1.692 262.1 2018.0 1.621 266.6 2019.0 1.525 271.7 2020.0 1.409 277.5 2021.0 1.278 284.5 2022.0 1.141 293.1 2023.0 1.012 304.0 2024.0 0.910 317.7 2025.0 0.854 334.1 2026.0 0.859 351.4 2027.0 0.927 7.3 2028.0 1.042 20.4 2029.0 1.188 30.6 2030.0 1.351 38.4 2031.0 1.522 44.5 2032.0 1.694 49.4 2033.0 1.864 53.4 2034.0 2.030 56.7 2035.0 2.190 59.5 2036.0 2.343 62.0 2037.0 2.488 64.1 2038.0 2.626 66.1 2039.0 2.757 67.8 2040.0 2.879 69.4 2041.0 2.994 70.8 2042.0 3.101 72.2 2043.0 3.201 73.4 2044.0 3.293 74.6 2045.0 3.378 75.8 2046.0 3.456 76.8 2047.0 3.527 77.9 2048.0 3.591 78.9 2049.0 3.649 79.8 2050.0 3.700 80.7 2051.0 3.745 81.7 2052.0 3.784 82.5 2053.0 3.817 83.4 2054.0 3.844 84.3 2055.0 3.866 85.1 2056.0 3.882 85.9 2057.0 3.893 86.8 2058.0 3.898 87.6 2059.0 3.898 88.4 2060.0 3.894 89.3 2061.0 3.884 90.1 2062.0 3.870 90.9 2063.0 3.851 91.8 2064.0 3.827 92.6 2065.0 3.799 93.5 2066.0 3.766 94.4 2067.0 3.730 95.3 2068.0 3.689 96.2 2069.0 3.644 97.1 2070.0 3.595 98.1 2071.0 3.543 99.0 2072.0 3.486 100.1 2073.0 3.426 101.1