| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:36:57 |
| WDS: | A1642 | WDS ID/Discoverer |
| P: | 188.610 | Orbital period (years) |
| a: | 0.719 | Semi-major axis (arcseconds) |
| i: | 99.3 | Inclination (degrees) |
| Ω: | 176.1 | Longitude of ascending node (degrees) |
| T: | 1892.300 | Epoch of periastron passage (year) |
| e: | 0.271 | Eccentricity |
| ω: | 120.4 | Longitude of periastron (degrees) |
| Start-Year: | 1931.0 | Year |
| End-Year: | 2119.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 161343.62+463823.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16137+4638 | WDS designation |
| Discoverer Code: | A1642 | Discover designation and components |
| ADS number: | 9975 | Aitken Double Star catalog |
| HD number: | 146327 | HD catalog number |
| Hipparcos number: | 79526 | Hipparcos catalog number |
| V1: | 8.87 | Magnitude of the primary |
| V2: | 9.39 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1997 | Date of last observation |
| Orbit grade: | 4 | 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 0.798 178.1 ------------------------- 1931.0 0.509 346.7 1932.0 0.497 346.1 1933.0 0.485 345.5 1934.0 0.473 344.8 1935.0 0.460 344.1 1936.0 0.447 343.4 1937.0 0.433 342.6 1938.0 0.419 341.8 1939.0 0.405 340.8 1940.0 0.391 339.9 1941.0 0.376 338.8 1942.0 0.361 337.7 1943.0 0.346 336.5 1944.0 0.331 335.1 1945.0 0.316 333.7 1946.0 0.300 332.0 1947.0 0.285 330.3 1948.0 0.270 328.3 1949.0 0.255 326.0 1950.0 0.240 323.5 1951.0 0.226 320.7 1952.0 0.212 317.5 1953.0 0.198 313.8 1954.0 0.186 309.7 1955.0 0.174 304.9 1956.0 0.164 299.6 1957.0 0.155 293.5 1958.0 0.148 286.8 1959.0 0.143 279.6 1960.0 0.141 272.0 1961.0 0.141 264.2 1962.0 0.143 256.5 1963.0 0.148 249.3 1964.0 0.155 242.6 1965.0 0.163 236.5 1966.0 0.174 231.1 1967.0 0.185 226.3 1968.0 0.198 222.1 1969.0 0.211 218.4 1970.0 0.225 215.2 1971.0 0.240 212.3 1972.0 0.255 209.8 1973.0 0.270 207.6 1974.0 0.285 205.6 1975.0 0.301 203.8 1976.0 0.316 202.2 1977.0 0.332 200.7 1978.0 0.348 199.4 1979.0 0.363 198.2 1980.0 0.379 197.1 1981.0 0.395 196.0 1982.0 0.410 195.1 1983.0 0.426 194.2 1984.0 0.441 193.4 1985.0 0.456 192.6 1986.0 0.471 191.9 1987.0 0.485 191.2 1988.0 0.500 190.6 1989.0 0.514 190.0 1990.0 0.528 189.4 1991.0 0.542 188.9 1992.0 0.556 188.4 1993.0 0.569 187.9 1994.0 0.582 187.5 1995.0 0.595 187.0 1996.0 0.607 186.6 1997.0 0.620 186.2 1998.0 0.631 185.8 1999.0 0.643 185.4 2000.0 0.654 185.0 2001.0 0.665 184.7 2002.0 0.676 184.3 2003.0 0.686 184.0 2004.0 0.695 183.7 2005.0 0.705 183.4 2006.0 0.714 183.1 2007.0 0.723 182.8 2008.0 0.731 182.5 2009.0 0.738 182.2 2010.0 0.746 181.9 2011.0 0.753 181.7 2012.0 0.759 181.4 2013.0 0.765 181.1 2014.0 0.771 180.9 2015.0 0.776 180.6 2016.0 0.780 180.3 2017.0 0.785 180.1 2018.0 0.788 179.8 2019.0 0.791 179.6 2020.0 0.794 179.4 2021.0 0.796 179.1 2022.0 0.797 178.9 2023.0 0.798 178.6 2024.0 0.798 178.4 2025.0 0.798 178.1 2026.0 0.797 177.9 2027.0 0.796 177.7 2028.0 0.794 177.4 2029.0 0.791 177.2 2030.0 0.788 176.9 2031.0 0.784 176.7 2032.0 0.779 176.4 2033.0 0.774 176.2 2034.0 0.768 175.9 2035.0 0.761 175.7 2036.0 0.754 175.4 2037.0 0.746 175.1 2038.0 0.737 174.8 2039.0 0.728 174.6 2040.0 0.717 174.3 2041.0 0.707 174.0 2042.0 0.695 173.6 2043.0 0.682 173.3 2044.0 0.669 173.0 2045.0 0.655 172.6 2046.0 0.641 172.3 2047.0 0.625 171.9 2048.0 0.609 171.5 2049.0 0.592 171.1 2050.0 0.574 170.6 2051.0 0.555 170.1 2052.0 0.536 169.6 2053.0 0.516 169.1 2054.0 0.495 168.5 2055.0 0.474 167.8 2056.0 0.451 167.1 2057.0 0.428 166.3 2058.0 0.405 165.4 2059.0 0.381 164.4 2060.0 0.356 163.3 2061.0 0.331 162.0 2062.0 0.305 160.4 2063.0 0.279 158.6 2064.0 0.252 156.5 2065.0 0.226 153.8 2066.0 0.199 150.4 2067.0 0.174 145.9 2068.0 0.149 140.0 2069.0 0.126 131.7 2070.0 0.106 120.2 2071.0 0.092 104.3 2072.0 0.087 84.9 2073.0 0.092 65.5 2074.0 0.106 49.7 2075.0 0.126 38.2 2076.0 0.149 30.0 2077.0 0.174 24.1 2078.0 0.200 19.6 2079.0 0.226 16.2 2080.0 0.252 13.5 2081.0 0.277 11.3 2082.0 0.303 9.5 2083.0 0.327 7.9 2084.0 0.351 6.6 2085.0 0.375 5.4 2086.0 0.397 4.4 2087.0 0.418 3.5 2088.0 0.438 2.7 2089.0 0.457 1.9 2090.0 0.475 1.2 2091.0 0.492 0.5 2092.0 0.508 359.9 2093.0 0.522 359.3 2094.0 0.535 358.8 2095.0 0.547 358.3 2096.0 0.558 357.8 2097.0 0.567 357.3 2098.0 0.576 356.8 2099.0 0.583 356.3 2100.0 0.588 355.9 2101.0 0.593 355.5 2102.0 0.597 355.0 2103.0 0.599 354.6 2104.0 0.601 354.2 2105.0 0.601 353.7 2106.0 0.600 353.3 2107.0 0.599 352.9 2108.0 0.596 352.5 2109.0 0.593 352.0 2110.0 0.588 351.6 2111.0 0.583 351.1 2112.0 0.577 350.7 2113.0 0.570 350.2 2114.0 0.563 349.7 2115.0 0.555 349.2 2116.0 0.546 348.7 2117.0 0.536 348.2 2118.0 0.526 347.7