| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:04:47 |
| WDS: | I507AB | WDS ID/Discoverer |
| P: | 205.690 | Orbital period (years) |
| a: | 1.052 | Semi-major axis (arcseconds) |
| i: | 87.9 | Inclination (degrees) |
| Ω: | 4.3 | Longitude of ascending node (degrees) |
| T: | 2024.147 | Epoch of periastron passage (year) |
| e: | 0.429 | Eccentricity |
| ω: | 69.6 | Longitude of periastron (degrees) |
| Start-Year: | 1923.0 | Year |
| End-Year: | 2127.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 112205.29-244639.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11221-2447 | WDS designation |
| Discoverer Code: | I507AB | Discover designation and components |
| ADS number: | 8141 | Aitken Double Star catalog |
| HD number: | 98800 | HD catalog number |
| Hipparcos number: | 55505 | Hipparcos catalog number |
| V1: | 9.59 | Magnitude of the primary |
| V2: | 10.06 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2018 | 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 0.170 11.5 ------------------------- 1923.0 0.494 190.3 1924.0 0.475 190.6 1925.0 0.456 190.9 1926.0 0.436 191.2 1927.0 0.416 191.6 1928.0 0.397 192.0 1929.0 0.377 192.4 1930.0 0.357 192.9 1931.0 0.337 193.4 1932.0 0.317 194.0 1933.0 0.296 194.7 1934.0 0.276 195.5 1935.0 0.256 196.4 1936.0 0.235 197.5 1937.0 0.215 198.7 1938.0 0.195 200.3 1939.0 0.175 202.1 1940.0 0.155 204.5 1941.0 0.135 207.6 1942.0 0.116 211.7 1943.0 0.098 217.3 1944.0 0.081 225.5 1945.0 0.066 237.6 1946.0 0.056 255.3 1947.0 0.053 277.7 1948.0 0.058 299.3 1949.0 0.069 315.5 1950.0 0.085 326.5 1951.0 0.102 333.9 1952.0 0.121 339.1 1953.0 0.140 342.9 1954.0 0.160 345.8 1955.0 0.180 348.0 1956.0 0.200 349.8 1957.0 0.220 351.3 1958.0 0.240 352.5 1959.0 0.260 353.5 1960.0 0.281 354.4 1961.0 0.301 355.1 1962.0 0.321 355.8 1963.0 0.341 356.4 1964.0 0.360 356.9 1965.0 0.380 357.4 1966.0 0.399 357.8 1967.0 0.419 358.2 1968.0 0.438 358.5 1969.0 0.457 358.9 1970.0 0.475 359.2 1971.0 0.494 359.4 1972.0 0.512 359.7 1973.0 0.530 359.9 1974.0 0.547 0.1 1975.0 0.564 0.4 1976.0 0.581 0.5 1977.0 0.598 0.7 1978.0 0.614 0.9 1979.0 0.629 1.1 1980.0 0.645 1.2 1981.0 0.659 1.4 1982.0 0.674 1.5 1983.0 0.687 1.7 1984.0 0.701 1.8 1985.0 0.713 1.9 1986.0 0.725 2.0 1987.0 0.736 2.2 1988.0 0.747 2.3 1989.0 0.757 2.4 1990.0 0.766 2.5 1991.0 0.774 2.6 1992.0 0.782 2.7 1993.0 0.789 2.8 1994.0 0.794 2.9 1995.0 0.799 3.0 1996.0 0.802 3.1 1997.0 0.805 3.2 1998.0 0.806 3.3 1999.0 0.806 3.4 2000.0 0.804 3.5 2001.0 0.802 3.6 2002.0 0.798 3.7 2003.0 0.792 3.8 2004.0 0.785 3.9 2005.0 0.776 4.0 2006.0 0.765 4.1 2007.0 0.752 4.3 2008.0 0.738 4.4 2009.0 0.721 4.5 2010.0 0.703 4.6 2011.0 0.682 4.8 2012.0 0.659 4.9 2013.0 0.634 5.0 2014.0 0.606 5.2 2015.0 0.577 5.4 2016.0 0.545 5.6 2017.0 0.511 5.8 2018.0 0.475 6.1 2019.0 0.436 6.4 2020.0 0.396 6.8 2021.0 0.353 7.2 2022.0 0.309 7.8 2023.0 0.264 8.6 2024.0 0.217 9.7 2025.0 0.170 11.5 2026.0 0.121 14.6 2027.0 0.074 21.8 2028.0 0.030 52.0 2029.0 0.037 146.9 2030.0 0.082 168.4 2031.0 0.131 174.3 2032.0 0.179 177.1 2033.0 0.227 178.7 2034.0 0.274 179.7 2035.0 0.320 180.4 2036.0 0.364 181.0 2037.0 0.408 181.4 2038.0 0.450 181.8 2039.0 0.491 182.0 2040.0 0.531 182.3 2041.0 0.569 182.5 2042.0 0.606 182.7 2043.0 0.641 182.9 2044.0 0.675 183.0 2045.0 0.707 183.1 2046.0 0.737 183.3 2047.0 0.767 183.4 2048.0 0.795 183.5 2049.0 0.821 183.6 2050.0 0.846 183.7 2051.0 0.870 183.8 2052.0 0.893 183.8 2053.0 0.914 183.9 2054.0 0.934 184.0 2055.0 0.953 184.1 2056.0 0.970 184.1 2057.0 0.987 184.2 2058.0 1.002 184.3 2059.0 1.017 184.3 2060.0 1.030 184.4 2061.0 1.042 184.5 2062.0 1.053 184.5 2063.0 1.063 184.6 2064.0 1.073 184.6 2065.0 1.081 184.7 2066.0 1.089 184.7 2067.0 1.095 184.8 2068.0 1.101 184.8 2069.0 1.106 184.9 2070.0 1.111 184.9 2071.0 1.114 185.0 2072.0 1.117 185.0 2073.0 1.119 185.1 2074.0 1.120 185.2 2075.0 1.121 185.2 2076.0 1.121 185.3 2077.0 1.120 185.3 2078.0 1.118 185.4 2079.0 1.116 185.4 2080.0 1.114 185.5 2081.0 1.111 185.5 2082.0 1.107 185.6 2083.0 1.103 185.6 2084.0 1.098 185.7 2085.0 1.093 185.7 2086.0 1.087 185.8 2087.0 1.080 185.8 2088.0 1.073 185.9 2089.0 1.066 185.9 2090.0 1.058 186.0 2091.0 1.050 186.1 2092.0 1.041 186.1 2093.0 1.032 186.2 2094.0 1.022 186.2 2095.0 1.012 186.3 2096.0 1.002 186.4 2097.0 0.991 186.4 2098.0 0.980 186.5 2099.0 0.969 186.6 2100.0 0.957 186.6 2101.0 0.944 186.7 2102.0 0.932 186.8 2103.0 0.919 186.8 2104.0 0.906 186.9 2105.0 0.892 187.0 2106.0 0.878 187.1 2107.0 0.864 187.2 2108.0 0.849 187.3 2109.0 0.835 187.3 2110.0 0.819 187.4 2111.0 0.804 187.5 2112.0 0.788 187.6 2113.0 0.773 187.7 2114.0 0.756 187.9 2115.0 0.740 188.0 2116.0 0.723 188.1 2117.0 0.707 188.2 2118.0 0.689 188.3 2119.0 0.672 188.5 2120.0 0.655 188.6 2121.0 0.637 188.8 2122.0 0.619 188.9 2123.0 0.601 189.1 2124.0 0.582 189.3 2125.0 0.564 189.5 2126.0 0.545 189.7