| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:36:50 |
| WDS: | STF2028 | WDS ID/Discoverer |
| P: | 105.340 | Orbital period (years) |
| a: | 0.399 | Semi-major axis (arcseconds) |
| i: | 83.6 | Inclination (degrees) |
| Ω: | 145.5 | Longitude of ascending node (degrees) |
| T: | 1993.380 | Epoch of periastron passage (year) |
| e: | 0.616 | Eccentricity |
| ω: | 223.7 | Longitude of periastron (degrees) |
| Start-Year: | 1973.0 | Year |
| End-Year: | 2077.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 161248.11+392135.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16128+3922 | WDS designation |
| Discoverer Code: | STF2028 | Discover designation and components |
| ADS number: | 9970 | Aitken Double Star catalog |
| HD number: | 146100 | HD catalog number |
| Hipparcos number: | 79448 | Hipparcos catalog number |
| V1: | 9.88 | Magnitude of the primary |
| V2: | 9.14 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | 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 0.534 147.8 ------------------------- 1973.0 0.062 200.0 1974.0 0.053 214.6 1975.0 0.048 233.6 1976.0 0.049 254.2 1977.0 0.056 271.8 1978.0 0.066 284.9 1979.0 0.079 294.1 1980.0 0.092 300.6 1981.0 0.107 305.5 1982.0 0.121 309.2 1983.0 0.135 312.1 1984.0 0.147 314.5 1985.0 0.159 316.6 1986.0 0.170 318.3 1987.0 0.177 319.9 1988.0 0.182 321.4 1989.0 0.183 322.8 1990.0 0.179 324.3 1991.0 0.169 325.8 1992.0 0.150 327.7 1993.0 0.123 330.3 1994.0 0.090 334.5 1995.0 0.052 344.8 1996.0 0.020 37.5 1997.0 0.042 116.5 1998.0 0.081 130.6 1999.0 0.120 135.5 2000.0 0.156 138.0 2001.0 0.191 139.6 2002.0 0.223 140.8 2003.0 0.252 141.6 2004.0 0.279 142.3 2005.0 0.305 142.9 2006.0 0.328 143.3 2007.0 0.350 143.7 2008.0 0.370 144.1 2009.0 0.388 144.5 2010.0 0.405 144.8 2011.0 0.421 145.0 2012.0 0.435 145.3 2013.0 0.449 145.5 2014.0 0.461 145.8 2015.0 0.472 146.0 2016.0 0.482 146.2 2017.0 0.491 146.4 2018.0 0.499 146.6 2019.0 0.506 146.8 2020.0 0.513 147.0 2021.0 0.519 147.1 2022.0 0.524 147.3 2023.0 0.528 147.5 2024.0 0.531 147.7 2025.0 0.534 147.8 2026.0 0.537 148.0 2027.0 0.538 148.2 2028.0 0.539 148.3 2029.0 0.539 148.5 2030.0 0.539 148.7 2031.0 0.539 148.8 2032.0 0.537 149.0 2033.0 0.535 149.2 2034.0 0.533 149.3 2035.0 0.530 149.5 2036.0 0.527 149.7 2037.0 0.523 149.8 2038.0 0.519 150.0 2039.0 0.514 150.2 2040.0 0.509 150.4 2041.0 0.503 150.6 2042.0 0.497 150.8 2043.0 0.491 150.9 2044.0 0.484 151.1 2045.0 0.477 151.4 2046.0 0.469 151.6 2047.0 0.461 151.8 2048.0 0.453 152.0 2049.0 0.444 152.3 2050.0 0.435 152.5 2051.0 0.425 152.8 2052.0 0.415 153.0 2053.0 0.405 153.3 2054.0 0.394 153.6 2055.0 0.384 153.9 2056.0 0.372 154.3 2057.0 0.361 154.6 2058.0 0.349 155.0 2059.0 0.337 155.4 2060.0 0.324 155.8 2061.0 0.311 156.3 2062.0 0.298 156.8 2063.0 0.285 157.4 2064.0 0.271 158.0 2065.0 0.257 158.7 2066.0 0.243 159.5 2067.0 0.229 160.3 2068.0 0.214 161.3 2069.0 0.199 162.4 2070.0 0.184 163.7 2071.0 0.169 165.3 2072.0 0.154 167.1 2073.0 0.138 169.4 2074.0 0.123 172.2 2075.0 0.108 175.8 2076.0 0.093 180.5