| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:39:18 |
| WDS: | STF2055AB | WDS ID/Discoverer |
| P: | 129.003 | Orbital period (years) |
| a: | 0.89777 | Semi-major axis (arcseconds) |
| i: | 23.761 | Inclination (degrees) |
| Ω: | 61.239 | Longitude of ascending node (degrees) |
| T: | 1939.489 | Epoch of periastron passage (year) |
| e: | 0.61536 | Eccentricity |
| ω: | 148.772 | Longitude of periastron (degrees) |
| Start-Year: | 1961.0 | Year |
| End-Year: | 2089.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 163054.84+015902.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16309+0159 | WDS designation |
| Discoverer Code: | STF2055AB | Discover designation and components |
| ADS number: | 10087 | Aitken Double Star catalog |
| HD number: | 148857 | HD catalog number |
| Hipparcos number: | 80883 | Hipparcos catalog number |
| V1: | 4.15 | Magnitude of the primary |
| V2: | 5.15 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 2 | 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 1.332 49.7 ------------------------- 1961.0 0.870 342.9 1962.0 0.894 345.0 1963.0 0.918 347.0 1964.0 0.941 348.8 1965.0 0.963 350.6 1966.0 0.985 352.3 1967.0 1.006 354.0 1968.0 1.027 355.6 1969.0 1.047 357.1 1970.0 1.067 358.5 1971.0 1.086 359.9 1972.0 1.104 1.3 1973.0 1.122 2.6 1974.0 1.140 3.8 1975.0 1.157 5.1 1976.0 1.173 6.3 1977.0 1.189 7.4 1978.0 1.204 8.6 1979.0 1.219 9.7 1980.0 1.233 10.8 1981.0 1.247 11.8 1982.0 1.260 12.8 1983.0 1.272 13.9 1984.0 1.285 14.8 1985.0 1.296 15.8 1986.0 1.307 16.8 1987.0 1.318 17.7 1988.0 1.328 18.6 1989.0 1.337 19.6 1990.0 1.346 20.5 1991.0 1.355 21.4 1992.0 1.363 22.2 1993.0 1.370 23.1 1994.0 1.377 24.0 1995.0 1.383 24.8 1996.0 1.389 25.7 1997.0 1.395 26.5 1998.0 1.400 27.3 1999.0 1.404 28.2 2000.0 1.408 29.0 2001.0 1.411 29.8 2002.0 1.414 30.6 2003.0 1.416 31.4 2004.0 1.418 32.2 2005.0 1.420 33.0 2006.0 1.420 33.8 2007.0 1.421 34.6 2008.0 1.420 35.4 2009.0 1.420 36.2 2010.0 1.418 37.1 2011.0 1.416 37.9 2012.0 1.414 38.7 2013.0 1.411 39.5 2014.0 1.408 40.3 2015.0 1.404 41.1 2016.0 1.399 41.9 2017.0 1.394 42.8 2018.0 1.388 43.6 2019.0 1.382 44.5 2020.0 1.375 45.3 2021.0 1.368 46.2 2022.0 1.360 47.1 2023.0 1.351 47.9 2024.0 1.342 48.8 2025.0 1.332 49.7 2026.0 1.322 50.7 2027.0 1.311 51.6 2028.0 1.299 52.5 2029.0 1.287 53.5 2030.0 1.274 54.5 2031.0 1.260 55.5 2032.0 1.246 56.6 2033.0 1.231 57.6 2034.0 1.215 58.7 2035.0 1.199 59.8 2036.0 1.182 61.0 2037.0 1.164 62.1 2038.0 1.145 63.3 2039.0 1.126 64.6 2040.0 1.105 65.9 2041.0 1.084 67.3 2042.0 1.063 68.7 2043.0 1.040 70.1 2044.0 1.016 71.7 2045.0 0.992 73.3 2046.0 0.967 75.0 2047.0 0.940 76.8 2048.0 0.913 78.7 2049.0 0.885 80.7 2050.0 0.856 82.8 2051.0 0.826 85.1 2052.0 0.795 87.6 2053.0 0.763 90.2 2054.0 0.730 93.2 2055.0 0.696 96.4 2056.0 0.661 99.9 2057.0 0.626 103.8 2058.0 0.590 108.2 2059.0 0.553 113.2 2060.0 0.517 118.9 2061.0 0.481 125.4 2062.0 0.446 133.0 2063.0 0.414 141.7 2064.0 0.385 151.9 2065.0 0.362 163.6 2066.0 0.345 176.6 2067.0 0.336 190.7 2068.0 0.335 205.1 2069.0 0.342 219.4 2070.0 0.354 232.8 2071.0 0.371 245.1 2072.0 0.392 256.3 2073.0 0.414 266.3 2074.0 0.439 275.2 2075.0 0.465 283.2 2076.0 0.491 290.3 2077.0 0.519 296.7 2078.0 0.547 302.4 2079.0 0.575 307.6 2080.0 0.603 312.2 2081.0 0.631 316.5 2082.0 0.659 320.4 2083.0 0.687 324.0 2084.0 0.714 327.3 2085.0 0.742 330.3 2086.0 0.768 333.2 2087.0 0.794 335.9 2088.0 0.820 338.3