| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:33:21 |
| WDS: | I454AB | WDS ID/Discoverer |
| P: | 213.000 | Orbital period (years) |
| a: | 1.03 | Semi-major axis (arcseconds) |
| i: | 76.0 | Inclination (degrees) |
| Ω: | 140.0 | Longitude of ascending node (degrees) |
| T: | 2057.000 | Epoch of periastron passage (year) |
| e: | 0.45 | Eccentricity |
| ω: | 175.0 | Longitude of periastron (degrees) |
| Start-Year: | 1919.0 | Year |
| End-Year: | 2131.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 020541.51-242233.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02057-2423 | WDS designation |
| Discoverer Code: | I454AB | Discover designation and components |
| ADS number: | 1652 | Aitken Double Star catalog |
| HD number: | 12889 | HD catalog number |
| Hipparcos number: | 9774 | Hipparcos catalog number |
| V1: | 8.62 | Magnitude of the primary |
| V2: | 11.32 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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 0.411 171.1 ------------------------- 1919.0 1.237 132.5 1920.0 1.251 132.7 1921.0 1.265 133.0 1922.0 1.279 133.2 1923.0 1.292 133.4 1924.0 1.304 133.7 1925.0 1.316 133.9 1926.0 1.328 134.1 1927.0 1.339 134.3 1928.0 1.350 134.6 1929.0 1.361 134.8 1930.0 1.371 135.0 1931.0 1.380 135.2 1932.0 1.390 135.4 1933.0 1.399 135.6 1934.0 1.407 135.8 1935.0 1.415 136.0 1936.0 1.423 136.2 1937.0 1.430 136.4 1938.0 1.437 136.5 1939.0 1.443 136.7 1940.0 1.449 136.9 1941.0 1.455 137.1 1942.0 1.460 137.3 1943.0 1.465 137.5 1944.0 1.470 137.6 1945.0 1.474 137.8 1946.0 1.477 138.0 1947.0 1.480 138.2 1948.0 1.483 138.3 1949.0 1.485 138.5 1950.0 1.487 138.7 1951.0 1.489 138.9 1952.0 1.490 139.0 1953.0 1.491 139.2 1954.0 1.491 139.4 1955.0 1.491 139.6 1956.0 1.490 139.7 1957.0 1.489 139.9 1958.0 1.488 140.1 1959.0 1.486 140.3 1960.0 1.484 140.4 1961.0 1.482 140.6 1962.0 1.478 140.8 1963.0 1.475 141.0 1964.0 1.471 141.2 1965.0 1.467 141.3 1966.0 1.462 141.5 1967.0 1.457 141.7 1968.0 1.452 141.9 1969.0 1.446 142.1 1970.0 1.439 142.3 1971.0 1.432 142.4 1972.0 1.425 142.6 1973.0 1.417 142.8 1974.0 1.409 143.0 1975.0 1.401 143.2 1976.0 1.392 143.4 1977.0 1.382 143.6 1978.0 1.372 143.8 1979.0 1.362 144.0 1980.0 1.351 144.2 1981.0 1.340 144.4 1982.0 1.329 144.7 1983.0 1.317 144.9 1984.0 1.304 145.1 1985.0 1.291 145.3 1986.0 1.278 145.6 1987.0 1.264 145.8 1988.0 1.250 146.1 1989.0 1.235 146.3 1990.0 1.220 146.6 1991.0 1.204 146.8 1992.0 1.188 147.1 1993.0 1.171 147.4 1994.0 1.154 147.7 1995.0 1.137 148.0 1996.0 1.119 148.3 1997.0 1.101 148.6 1998.0 1.082 148.9 1999.0 1.062 149.2 2000.0 1.043 149.6 2001.0 1.022 150.0 2002.0 1.002 150.3 2003.0 0.980 150.7 2004.0 0.959 151.1 2005.0 0.937 151.6 2006.0 0.914 152.0 2007.0 0.891 152.5 2008.0 0.868 153.0 2009.0 0.844 153.5 2010.0 0.819 154.1 2011.0 0.795 154.7 2012.0 0.769 155.3 2013.0 0.744 156.0 2014.0 0.718 156.7 2015.0 0.691 157.5 2016.0 0.664 158.3 2017.0 0.637 159.3 2018.0 0.610 160.3 2019.0 0.582 161.4 2020.0 0.554 162.6 2021.0 0.526 163.9 2022.0 0.497 165.4 2023.0 0.468 167.0 2024.0 0.440 168.9 2025.0 0.411 171.1 2026.0 0.383 173.5 2027.0 0.355 176.4 2028.0 0.327 179.7 2029.0 0.301 183.6 2030.0 0.276 188.3 2031.0 0.252 193.9 2032.0 0.231 200.6 2033.0 0.214 208.4 2034.0 0.200 217.5 2035.0 0.192 227.6 2036.0 0.190 238.3 2037.0 0.194 248.8 2038.0 0.204 258.6 2039.0 0.219 267.3 2040.0 0.238 274.7 2041.0 0.259 281.0 2042.0 0.283 286.3 2043.0 0.307 290.7 2044.0 0.333 294.5 2045.0 0.358 297.8 2046.0 0.383 300.6 2047.0 0.408 303.1 2048.0 0.432 305.3 2049.0 0.454 307.2 2050.0 0.475 309.0 2051.0 0.495 310.7 2052.0 0.512 312.2 2053.0 0.527 313.6 2054.0 0.540 315.0 2055.0 0.551 316.3 2056.0 0.559 317.6 2057.0 0.564 318.8 2058.0 0.567 320.0 2059.0 0.567 321.2 2060.0 0.564 322.4 2061.0 0.559 323.6 2062.0 0.551 324.9 2063.0 0.541 326.2 2064.0 0.529 327.5 2065.0 0.514 329.0 2066.0 0.498 330.5 2067.0 0.480 332.1 2068.0 0.461 333.8 2069.0 0.440 335.8 2070.0 0.419 337.9 2071.0 0.396 340.2 2072.0 0.374 342.8 2073.0 0.351 345.8 2074.0 0.328 349.1 2075.0 0.305 353.0 2076.0 0.284 357.5 2077.0 0.264 2.7 2078.0 0.245 8.6 2079.0 0.230 15.5 2080.0 0.217 23.3 2081.0 0.209 31.8 2082.0 0.206 40.9 2083.0 0.207 50.0 2084.0 0.213 58.9 2085.0 0.223 67.0 2086.0 0.238 74.3 2087.0 0.255 80.7 2088.0 0.275 86.3 2089.0 0.297 91.0 2090.0 0.320 95.1 2091.0 0.344 98.6 2092.0 0.369 101.7 2093.0 0.394 104.4 2094.0 0.420 106.7 2095.0 0.446 108.8 2096.0 0.473 110.6 2097.0 0.499 112.2 2098.0 0.525 113.7 2099.0 0.551 115.1 2100.0 0.577 116.3 2101.0 0.603 117.4 2102.0 0.629 118.4 2103.0 0.654 119.4 2104.0 0.679 120.2 2105.0 0.704 121.0 2106.0 0.729 121.8 2107.0 0.753 122.5 2108.0 0.777 123.2 2109.0 0.801 123.8 2110.0 0.824 124.4 2111.0 0.847 124.9 2112.0 0.869 125.4 2113.0 0.891 125.9 2114.0 0.913 126.4 2115.0 0.934 126.9 2116.0 0.955 127.3 2117.0 0.976 127.7 2118.0 0.996 128.1 2119.0 1.016 128.5 2120.0 1.036 128.9 2121.0 1.055 129.2 2122.0 1.073 129.6 2123.0 1.091 129.9 2124.0 1.109 130.2 2125.0 1.127 130.5 2126.0 1.144 130.8 2127.0 1.160 131.1 2128.0 1.176 131.4 2129.0 1.192 131.7 2130.0 1.208 132.0