| WDS: | A2780AA,AB | WDS ID/Discoverer |
| P: | 297.000 | Orbital period (years) |
| a: | 0.494 | Semi-major axis (arcseconds) |
| i: | 119.6 | Inclination (degrees) |
| Ω: | 174.4 | Longitude of ascending node (degrees) |
| T: | 2018.728 | Epoch of periastron passage (year) |
| e: | 0.932 | Eccentricity |
| ω: | 116.3 | Longitude of periastron (degrees) |
| Start-Year: | 1876.5 | Year |
| End-Year: | 2173.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A2780AA,AB |
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| Position: | 123009.01-065304.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 12301-0653 | WDS designation |
| Discoverer Code: | A2780AA,AB | Discover designation and components |
| ADS number: | 8574 | Aitken Double Star catalog |
| HD number: | 108808 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 10.4 | Magnitude of the primary |
| V2: | 10.4 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2019 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Tok2019h | 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 0.113 295.86 -------------------------- 1876.50 0.603 218.46 1877.50 0.604 218.32 1878.50 0.604 218.17 1879.50 0.605 218.03 1880.50 0.606 217.88 1881.50 0.606 217.74 1882.50 0.607 217.59 1883.50 0.607 217.45 1884.50 0.608 217.31 1885.50 0.608 217.16 1886.50 0.609 217.02 1887.50 0.609 216.88 1888.50 0.609 216.74 1889.50 0.610 216.59 1890.50 0.610 216.45 1891.50 0.610 216.31 1892.50 0.610 216.17 1893.50 0.611 216.02 1894.50 0.611 215.88 1895.50 0.611 215.74 1896.50 0.611 215.60 1897.50 0.611 215.46 1898.50 0.611 215.31 1899.50 0.611 215.17 1900.50 0.611 215.03 1901.50 0.611 214.89 1902.50 0.610 214.75 1903.50 0.610 214.60 1904.50 0.610 214.46 1905.50 0.610 214.32 1906.50 0.609 214.18 1907.50 0.609 214.03 1908.50 0.609 213.89 1909.50 0.608 213.75 1910.50 0.608 213.60 1911.50 0.607 213.46 1912.50 0.606 213.32 1913.50 0.606 213.17 1914.50 0.605 213.03 1915.50 0.605 212.88 1916.50 0.604 212.74 1917.50 0.603 212.59 1918.50 0.602 212.45 1919.50 0.601 212.30 1920.50 0.601 212.15 1921.50 0.600 212.01 1922.50 0.599 211.86 1923.50 0.598 211.71 1924.50 0.597 211.56 1925.50 0.595 211.41 1926.50 0.594 211.26 1927.50 0.593 211.11 1928.50 0.592 210.96 1929.50 0.590 210.81 1930.50 0.589 210.66 1931.50 0.588 210.51 1932.50 0.586 210.35 1933.50 0.585 210.20 1934.50 0.583 210.04 1935.50 0.582 209.89 1936.50 0.580 209.73 1937.50 0.578 209.57 1938.50 0.577 209.41 1939.50 0.575 209.25 1940.50 0.573 209.09 1941.50 0.571 208.93 1942.50 0.569 208.77 1943.50 0.567 208.60 1944.50 0.565 208.44 1945.50 0.563 208.27 1946.50 0.561 208.10 1947.50 0.559 207.94 1948.50 0.556 207.77 1949.50 0.554 207.59 1950.50 0.551 207.42 1951.50 0.549 207.25 1952.50 0.546 207.07 1953.50 0.544 206.89 1954.50 0.541 206.71 1955.50 0.538 206.53 1956.50 0.536 206.35 1957.50 0.533 206.16 1958.50 0.530 205.97 1959.50 0.527 205.78 1960.50 0.524 205.59 1961.50 0.521 205.40 1962.50 0.517 205.20 1963.50 0.514 205.00 1964.50 0.511 204.80 1965.50 0.507 204.59 1966.50 0.504 204.39 1967.50 0.500 204.18 1968.50 0.496 203.96 1969.50 0.493 203.75 1970.50 0.489 203.53 1971.50 0.485 203.30 1972.50 0.481 203.08 1973.50 0.477 202.85 1974.50 0.472 202.61 1975.50 0.468 202.37 1976.50 0.463 202.13 1977.50 0.459 201.88 1978.50 0.454 201.62 1979.50 0.449 201.36 1980.50 0.444 201.10 1981.50 0.439 200.83 1982.50 0.434 200.55 1983.50 0.429 200.26 1984.50 0.423 199.97 1985.50 0.418 199.67 1986.50 0.412 199.37 1987.50 0.406 199.05 1988.50 0.400 198.72 1989.50 0.394 198.39 1990.50 0.388 198.04 1991.50 0.381 197.68 1992.50 0.374 197.31 1993.50 0.367 196.93 1994.50 0.360 196.53 1995.50 0.353 196.11 1996.50 0.345 195.68 1997.50 0.337 195.22 1998.50 0.329 194.74 1999.50 0.321 194.24 2000.50 0.312 193.71 2001.50 0.303 193.15 2002.50 0.294 192.56 2003.50 0.284 191.92 2004.50 0.274 191.24 2005.50 0.263 190.50 2006.50 0.252 189.70 2007.50 0.240 188.83 2008.50 0.227 187.86 2009.50 0.214 186.77 2010.50 0.200 185.53 2011.50 0.185 184.11 2012.50 0.169 182.41 2013.50 0.151 180.33 2014.50 0.131 177.64 2015.50 0.108 173.89 2016.50 0.081 167.88 2017.50 0.048 154.50 2018.50 0.017 74.13 2019.50 0.044 356.10 2020.50 0.063 337.77 2021.50 0.075 326.59 2022.50 0.084 318.13 2023.50 0.092 311.22 2024.50 0.099 305.37 2025.50 0.106 300.30 2026.50 0.113 295.86 2027.50 0.119 291.91 2028.50 0.126 288.38 2029.50 0.132 285.19 2030.50 0.139 282.30 2031.50 0.145 279.67 2032.50 0.151 277.25 2033.50 0.158 275.03 2034.50 0.164 272.98 2035.50 0.170 271.07 2036.50 0.176 269.30 2037.50 0.182 267.65 2038.50 0.188 266.10 2039.50 0.194 264.65 2040.50 0.200 263.28 2041.50 0.206 261.99 2042.50 0.211 260.77 2043.50 0.217 259.61 2044.50 0.223 258.52 2045.50 0.228 257.48 2046.50 0.234 256.48 2047.50 0.239 255.54 2048.50 0.245 254.63 2049.50 0.250 253.76 2050.50 0.255 252.93 2051.50 0.261 252.14 2052.50 0.266 251.37 2053.50 0.271 250.64 2054.50 0.276 249.93 2055.50 0.281 249.25 2056.50 0.286 248.59 2057.50 0.291 247.95 2058.50 0.296 247.34 2059.50 0.301 246.74 2060.50 0.306 246.17 2061.50 0.310 245.61 2062.50 0.315 245.07 2063.50 0.320 244.54 2064.50 0.324 244.03 2065.50 0.329 243.54 2066.50 0.333 243.05 2067.50 0.338 242.58 2068.50 0.342 242.13 2069.50 0.347 241.68 2070.50 0.351 241.24 2071.50 0.355 240.82 2072.50 0.360 240.41 2073.50 0.364 240.00 2074.50 0.368 239.61 2075.50 0.372 239.22 2076.50 0.376 238.84 2077.50 0.380 238.47 2078.50 0.384 238.11 2079.50 0.388 237.75 2080.50 0.392 237.40 2081.50 0.396 237.06 2082.50 0.400 236.73 2083.50 0.404 236.40 2084.50 0.407 236.08 2085.50 0.411 235.76 2086.50 0.415 235.45 2087.50 0.418 235.15 2088.50 0.422 234.85 2089.50 0.426 234.55 2090.50 0.429 234.26 2091.50 0.433 233.98 2092.50 0.436 233.70 2093.50 0.440 233.42 2094.50 0.443 233.15 2095.50 0.446 232.88 2096.50 0.450 232.62 2097.50 0.453 232.36 2098.50 0.456 232.10 2099.50 0.459 231.85 2100.50 0.462 231.60 2101.50 0.466 231.35 2102.50 0.469 231.11 2103.50 0.472 230.87 2104.50 0.475 230.63 2105.50 0.478 230.40 2106.50 0.481 230.17 2107.50 0.484 229.94 2108.50 0.486 229.72 2109.50 0.489 229.49 2110.50 0.492 229.27 2111.50 0.495 229.06 2112.50 0.498 228.84 2113.50 0.500 228.63 2114.50 0.503 228.42 2115.50 0.506 228.21 2116.50 0.508 228.01 2117.50 0.511 227.80 2118.50 0.513 227.60 2119.50 0.516 227.40 2120.50 0.518 227.20 2121.50 0.521 227.01 2122.50 0.523 226.81 2123.50 0.526 226.62 2124.50 0.528 226.43 2125.50 0.530 226.24 2126.50 0.533 226.05 2127.50 0.535 225.87 2128.50 0.537 225.68 2129.50 0.539 225.50 2130.50 0.541 225.32 2131.50 0.543 225.14 2132.50 0.546 224.96 2133.50 0.548 224.78 2134.50 0.550 224.60 2135.50 0.552 224.43 2136.50 0.554 224.26 2137.50 0.556 224.08 2138.50 0.557 223.91 2139.50 0.559 223.74 2140.50 0.561 223.57 2141.50 0.563 223.41 2142.50 0.565 223.24 2143.50 0.566 223.08 2144.50 0.568 222.91 2145.50 0.570 222.75 2146.50 0.571 222.58 2147.50 0.573 222.42 2148.50 0.575 222.26 2149.50 0.576 222.10 2150.50 0.578 221.94 2151.50 0.579 221.78 2152.50 0.580 221.63 2153.50 0.582 221.47 2154.50 0.583 221.31 2155.50 0.585 221.16 2156.50 0.586 221.00 2157.50 0.587 220.85 2158.50 0.588 220.70 2159.50 0.590 220.54 2160.50 0.591 220.39 2161.50 0.592 220.24 2162.50 0.593 220.09 2163.50 0.594 219.94 2164.50 0.595 219.79 2165.50 0.596 219.64 2166.50 0.597 219.49 2167.50 0.598 219.34 2168.50 0.599 219.20 2169.50 0.600 219.05 2170.50 0.601 218.90 2171.50 0.602 218.75 2172.50 0.602 218.61
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:47:08 |