| WDS: | STT4 | WDS ID/Discoverer |
| P: | 108.500 | Orbital period (years) |
| a: | 0.363 | Semi-major axis (arcseconds) |
| i: | 159.2 | Inclination (degrees) |
| Ω: | 168.1 | Longitude of ascending node (degrees) |
| T: | 1907.650 | Epoch of periastron passage (year) |
| e: | 0.545 | Eccentricity |
| ω: | 153.2 | Longitude of periastron (degrees) |
| Start-Year: | 1970.75 | Year |
| End-Year: | 2079.25 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STT4 |
||
| 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: | 2023 | Date of last observation |
| Orbit grade: | 2 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Doc2025a | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 0.255 280.54 -------------------------- 1970.75 0.547 183.44 1971.75 0.545 182.29 1972.75 0.542 181.13 1973.75 0.540 179.96 1974.75 0.536 178.77 1975.75 0.533 177.57 1976.75 0.529 176.36 1977.75 0.525 175.12 1978.75 0.520 173.87 1979.75 0.516 172.59 1980.75 0.510 171.29 1981.75 0.505 169.96 1982.75 0.499 168.60 1983.75 0.493 167.21 1984.75 0.486 165.78 1985.75 0.479 164.31 1986.75 0.472 162.80 1987.75 0.464 161.24 1988.75 0.456 159.62 1989.75 0.448 157.94 1990.75 0.439 156.20 1991.75 0.430 154.38 1992.75 0.420 152.49 1993.75 0.410 150.50 1994.75 0.399 148.40 1995.75 0.389 146.20 1996.75 0.377 143.86 1997.75 0.365 141.38 1998.75 0.353 138.72 1999.75 0.341 135.88 2000.75 0.328 132.81 2001.75 0.314 129.48 2002.75 0.301 125.86 2003.75 0.287 121.88 2004.75 0.272 117.50 2005.75 0.258 112.62 2006.75 0.244 107.18 2007.75 0.230 101.05 2008.75 0.216 94.13 2009.75 0.203 86.28 2010.75 0.191 77.40 2011.75 0.180 67.41 2012.75 0.172 56.32 2013.75 0.166 44.27 2014.75 0.163 31.55 2015.75 0.162 18.56 2016.75 0.165 5.71 2017.75 0.169 353.38 2018.75 0.175 341.80 2019.75 0.183 331.11 2020.75 0.192 321.33 2021.75 0.202 312.46 2022.75 0.212 304.43 2023.75 0.223 297.17 2024.75 0.234 290.60 2025.75 0.246 284.65 2026.75 0.257 279.23 2027.75 0.269 274.29 2028.75 0.281 269.76 2029.75 0.293 265.60 2030.75 0.304 261.75 2031.75 0.316 258.19 2032.75 0.327 254.88 2033.75 0.338 251.78 2034.75 0.349 248.89 2035.75 0.360 246.16 2036.75 0.370 243.59 2037.75 0.380 241.16 2038.75 0.390 238.85 2039.75 0.400 236.65 2040.75 0.409 234.56 2041.75 0.418 232.56 2042.75 0.427 230.64 2043.75 0.435 228.79 2044.75 0.444 227.02 2045.75 0.451 225.31 2046.75 0.459 223.65 2047.75 0.466 222.05 2048.75 0.473 220.50 2049.75 0.480 218.99 2050.75 0.486 217.52 2051.75 0.492 216.09 2052.75 0.498 214.70 2053.75 0.504 213.33 2054.75 0.509 212.00 2055.75 0.514 210.69 2056.75 0.519 209.40 2057.75 0.523 208.14 2058.75 0.527 206.89 2059.75 0.531 205.67 2060.75 0.534 204.46 2061.75 0.538 203.27 2062.75 0.541 202.09 2063.75 0.543 200.92 2064.75 0.546 199.77 2065.75 0.548 198.62 2066.75 0.550 197.48 2067.75 0.551 196.35 2068.75 0.552 195.23 2069.75 0.553 194.10 2070.75 0.554 192.99 2071.75 0.554 191.87 2072.75 0.554 190.75 2073.75 0.554 189.64 2074.75 0.553 188.52 2075.75 0.553 187.40 2076.75 0.551 186.27 2077.75 0.550 185.14 2078.75 0.548 184.01
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:37:54 |