| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:22:35 |
| WDS: | STT122 | WDS ID/Discoverer |
| P: | 217.740 | Orbital period (years) |
| a: | 0.376 | Semi-major axis (arcseconds) |
| i: | 64.9 | Inclination (degrees) |
| Ω: | 62.1 | Longitude of ascending node (degrees) |
| T: | 1966.950 | Epoch of periastron passage (year) |
| e: | 0.844 | Eccentricity |
| ω: | 249.9 | Longitude of periastron (degrees) |
| Start-Year: | 1917.0 | Year |
| End-Year: | 2133.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 055550.25+365612.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 05558+3656 | WDS designation |
| Discoverer Code: | STT122 | Discover designation and components |
| ADS number: | 4505 | Aitken Double Star catalog |
| HD number: | 39697 | HD catalog number |
| Hipparcos number: | 28043 | Hipparcos catalog number |
| V1: | 7.80 | Magnitude of the primary |
| V2: | 8.49 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 1988 | Date of last observation |
| Orbit grade: | 3 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.394 93.4 ------------------------- 1917.0 0.234 147.0 1918.0 0.231 147.9 1919.0 0.229 148.9 1920.0 0.226 150.0 1921.0 0.224 151.0 1922.0 0.221 152.1 1923.0 0.219 153.2 1924.0 0.216 154.3 1925.0 0.214 155.5 1926.0 0.211 156.6 1927.0 0.209 157.9 1928.0 0.207 159.1 1929.0 0.204 160.3 1930.0 0.202 161.6 1931.0 0.199 163.0 1932.0 0.197 164.3 1933.0 0.195 165.7 1934.0 0.192 167.1 1935.0 0.190 168.6 1936.0 0.188 170.1 1937.0 0.186 171.6 1938.0 0.183 173.1 1939.0 0.181 174.7 1940.0 0.179 176.4 1941.0 0.177 178.1 1942.0 0.175 179.8 1943.0 0.173 181.5 1944.0 0.171 183.3 1945.0 0.168 185.2 1946.0 0.166 187.1 1947.0 0.164 189.0 1948.0 0.162 191.0 1949.0 0.160 193.1 1950.0 0.158 195.2 1951.0 0.155 197.4 1952.0 0.153 199.6 1953.0 0.151 201.9 1954.0 0.148 204.3 1955.0 0.145 206.8 1956.0 0.142 209.3 1957.0 0.139 212.0 1958.0 0.135 214.9 1959.0 0.131 217.9 1960.0 0.126 221.1 1961.0 0.120 224.7 1962.0 0.112 228.6 1963.0 0.103 233.2 1964.0 0.091 238.8 1965.0 0.075 246.6 1966.0 0.053 259.8 1967.0 0.030 294.2 1968.0 0.032 5.9 1969.0 0.057 36.4 1970.0 0.082 47.8 1971.0 0.105 53.9 1972.0 0.126 57.9 1973.0 0.144 60.8 1974.0 0.160 63.1 1975.0 0.174 65.0 1976.0 0.188 66.7 1977.0 0.200 68.1 1978.0 0.211 69.3 1979.0 0.222 70.5 1980.0 0.231 71.5 1981.0 0.240 72.5 1982.0 0.249 73.4 1983.0 0.257 74.2 1984.0 0.265 75.0 1985.0 0.272 75.7 1986.0 0.279 76.4 1987.0 0.285 77.1 1988.0 0.291 77.7 1989.0 0.297 78.3 1990.0 0.303 78.9 1991.0 0.308 79.5 1992.0 0.313 80.0 1993.0 0.318 80.6 1994.0 0.323 81.1 1995.0 0.327 81.6 1996.0 0.331 82.1 1997.0 0.335 82.6 1998.0 0.339 83.0 1999.0 0.342 83.5 2000.0 0.346 83.9 2001.0 0.349 84.4 2002.0 0.352 84.8 2003.0 0.355 85.2 2004.0 0.358 85.7 2005.0 0.361 86.1 2006.0 0.364 86.5 2007.0 0.366 86.9 2008.0 0.368 87.3 2009.0 0.371 87.7 2010.0 0.373 88.0 2011.0 0.375 88.4 2012.0 0.377 88.8 2013.0 0.379 89.2 2014.0 0.380 89.5 2015.0 0.382 89.9 2016.0 0.384 90.3 2017.0 0.385 90.6 2018.0 0.386 91.0 2019.0 0.388 91.3 2020.0 0.389 91.7 2021.0 0.390 92.0 2022.0 0.391 92.4 2023.0 0.392 92.7 2024.0 0.393 93.1 2025.0 0.394 93.4 2026.0 0.394 93.8 2027.0 0.395 94.1 2028.0 0.396 94.4 2029.0 0.396 94.8 2030.0 0.397 95.1 2031.0 0.397 95.5 2032.0 0.397 95.8 2033.0 0.398 96.1 2034.0 0.398 96.5 2035.0 0.398 96.8 2036.0 0.398 97.1 2037.0 0.398 97.5 2038.0 0.398 97.8 2039.0 0.398 98.2 2040.0 0.398 98.5 2041.0 0.398 98.8 2042.0 0.398 99.2 2043.0 0.397 99.5 2044.0 0.397 99.8 2045.0 0.397 100.2 2046.0 0.396 100.5 2047.0 0.396 100.8 2048.0 0.395 101.2 2049.0 0.395 101.5 2050.0 0.394 101.9 2051.0 0.394 102.2 2052.0 0.393 102.6 2053.0 0.392 102.9 2054.0 0.391 103.2 2055.0 0.390 103.6 2056.0 0.390 103.9 2057.0 0.389 104.3 2058.0 0.388 104.6 2059.0 0.387 105.0 2060.0 0.386 105.4 2061.0 0.385 105.7 2062.0 0.384 106.1 2063.0 0.382 106.4 2064.0 0.381 106.8 2065.0 0.380 107.2 2066.0 0.379 107.5 2067.0 0.378 107.9 2068.0 0.376 108.3 2069.0 0.375 108.7 2070.0 0.373 109.0 2071.0 0.372 109.4 2072.0 0.371 109.8 2073.0 0.369 110.2 2074.0 0.368 110.6 2075.0 0.366 111.0 2076.0 0.364 111.4 2077.0 0.363 111.8 2078.0 0.361 112.2 2079.0 0.360 112.6 2080.0 0.358 113.0 2081.0 0.356 113.4 2082.0 0.354 113.9 2083.0 0.353 114.3 2084.0 0.351 114.7 2085.0 0.349 115.1 2086.0 0.347 115.6 2087.0 0.345 116.0 2088.0 0.343 116.5 2089.0 0.341 116.9 2090.0 0.339 117.4 2091.0 0.337 117.9 2092.0 0.335 118.3 2093.0 0.333 118.8 2094.0 0.331 119.3 2095.0 0.329 119.8 2096.0 0.327 120.3 2097.0 0.325 120.8 2098.0 0.323 121.3 2099.0 0.321 121.8 2100.0 0.318 122.3 2101.0 0.316 122.8 2102.0 0.314 123.4 2103.0 0.312 123.9 2104.0 0.309 124.5 2105.0 0.307 125.0 2106.0 0.305 125.6 2107.0 0.303 126.2 2108.0 0.300 126.8 2109.0 0.298 127.3 2110.0 0.295 128.0 2111.0 0.293 128.6 2112.0 0.291 129.2 2113.0 0.288 129.8 2114.0 0.286 130.5 2115.0 0.283 131.1 2116.0 0.281 131.8 2117.0 0.278 132.5 2118.0 0.276 133.2 2119.0 0.274 133.9 2120.0 0.271 134.6 2121.0 0.269 135.3 2122.0 0.266 136.1 2123.0 0.264 136.8 2124.0 0.261 137.6 2125.0 0.258 138.4 2126.0 0.256 139.2 2127.0 0.253 140.0 2128.0 0.251 140.8 2129.0 0.248 141.7 2130.0 0.246 142.6 2131.0 0.243 143.5 2132.0 0.241 144.4