| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:18:53 |
| WDS: | STT4 | WDS ID/Discoverer |
| P: | 108.900 | Orbital period (years) |
| a: | 0.35 | Semi-major axis (arcseconds) |
| i: | 162.5 | Inclination (degrees) |
| Ω: | 10.8 | Longitude of ascending node (degrees) |
| T: | 1907.900 | Epoch of periastron passage (year) |
| e: | 0.56 | Eccentricity |
| ω: | 356.3 | Longitude of periastron (degrees) |
| Start-Year: | 1971.0 | Year |
| End-Year: | 2079.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 001644.54+362929.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00167+3629 | WDS designation |
| Discoverer Code: | STT4 | Discover designation and components |
| ADS number: | 221 | Aitken Double Star catalog |
| HD number: | 1224 | HD catalog number |
| Hipparcos number: | 1336 | Hipparcos catalog number |
| V1: | 7.94 | Magnitude of the primary |
| V2: | 9.88 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 1999 | 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 0.220 289.0 ------------------------- 1971.0 0.536 184.9 1972.0 0.533 183.8 1973.0 0.530 182.7 1974.0 0.527 181.5 1975.0 0.524 180.4 1976.0 0.520 179.2 1977.0 0.516 178.0 1978.0 0.511 176.8 1979.0 0.507 175.6 1980.0 0.502 174.3 1981.0 0.496 173.0 1982.0 0.491 171.7 1983.0 0.485 170.3 1984.0 0.478 169.0 1985.0 0.472 167.5 1986.0 0.465 166.1 1987.0 0.458 164.6 1988.0 0.450 163.0 1989.0 0.442 161.4 1990.0 0.434 159.8 1991.0 0.425 158.0 1992.0 0.416 156.2 1993.0 0.407 154.3 1994.0 0.397 152.3 1995.0 0.387 150.3 1996.0 0.377 148.1 1997.0 0.366 145.7 1998.0 0.355 143.3 1999.0 0.343 140.6 2000.0 0.331 137.8 2001.0 0.319 134.8 2002.0 0.307 131.5 2003.0 0.294 128.0 2004.0 0.281 124.1 2005.0 0.268 119.9 2006.0 0.255 115.2 2007.0 0.241 110.0 2008.0 0.228 104.2 2009.0 0.215 97.7 2010.0 0.203 90.3 2011.0 0.191 82.0 2012.0 0.180 72.7 2013.0 0.171 62.3 2014.0 0.163 50.7 2015.0 0.158 38.3 2016.0 0.155 25.1 2017.0 0.154 11.6 2018.0 0.156 358.3 2019.0 0.160 345.5 2020.0 0.167 333.5 2021.0 0.175 322.5 2022.0 0.185 312.7 2023.0 0.196 303.8 2024.0 0.208 296.0 2025.0 0.220 289.0 2026.0 0.233 282.8 2027.0 0.246 277.2 2028.0 0.259 272.2 2029.0 0.272 267.7 2030.0 0.285 263.5 2031.0 0.298 259.8 2032.0 0.310 256.3 2033.0 0.322 253.1 2034.0 0.334 250.2 2035.0 0.346 247.4 2036.0 0.357 244.8 2037.0 0.368 242.4 2038.0 0.378 240.1 2039.0 0.389 237.9 2040.0 0.399 235.8 2041.0 0.408 233.9 2042.0 0.417 232.0 2043.0 0.426 230.2 2044.0 0.435 228.4 2045.0 0.443 226.8 2046.0 0.451 225.2 2047.0 0.458 223.6 2048.0 0.465 222.1 2049.0 0.472 220.7 2050.0 0.479 219.3 2051.0 0.485 217.9 2052.0 0.491 216.5 2053.0 0.496 215.2 2054.0 0.502 213.9 2055.0 0.507 212.7 2056.0 0.511 211.4 2057.0 0.516 210.2 2058.0 0.520 209.0 2059.0 0.523 207.9 2060.0 0.527 206.7 2061.0 0.530 205.6 2062.0 0.533 204.4 2063.0 0.536 203.3 2064.0 0.538 202.2 2065.0 0.540 201.1 2066.0 0.542 200.0 2067.0 0.543 198.9 2068.0 0.544 197.8 2069.0 0.545 196.7 2070.0 0.546 195.7 2071.0 0.546 194.6 2072.0 0.546 193.5 2073.0 0.546 192.4 2074.0 0.545 191.4 2075.0 0.544 190.3 2076.0 0.543 189.2 2077.0 0.542 188.1 2078.0 0.540 187.0