| WDS: | A2087 | WDS ID/Discoverer |
| P: | 300.410 | Orbital period (years) |
| a: | 0.464 | Semi-major axis (arcseconds) |
| i: | 59.5 | Inclination (degrees) |
| Ω: | 143.7 | Longitude of ascending node (degrees) |
| T: | 1969.640 | Epoch of periastron passage (year) |
| e: | 0.666 | Eccentricity |
| ω: | 208.7 | Longitude of periastron (degrees) |
| Start-Year: | 1874.795 | Year |
| End-Year: | 2175.205 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A2087 |
||
| Position: | 171338.90+171627.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17136+1716 | WDS designation |
| Discoverer Code: | A2087 | Discover designation and components |
| ADS number: | 10403 | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | 84274 | Hipparcos catalog number |
| V1: | 10.47 | Magnitude of the primary |
| V2: | 10.73 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1997 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Mnt2001a | 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 0.539 138.99 -------------------------- 1874.80 0.536 172.94 1875.80 0.532 173.29 1876.80 0.527 173.64 1877.80 0.522 173.99 1878.80 0.518 174.35 1879.80 0.513 174.72 1880.80 0.508 175.09 1881.80 0.503 175.48 1882.80 0.499 175.87 1883.80 0.494 176.26 1884.80 0.489 176.67 1885.80 0.484 177.08 1886.80 0.479 177.50 1887.80 0.473 177.93 1888.80 0.468 178.37 1889.80 0.463 178.82 1890.80 0.458 179.29 1891.80 0.453 179.76 1892.80 0.447 180.24 1893.80 0.442 180.73 1894.80 0.436 181.24 1895.80 0.431 181.76 1896.80 0.425 182.29 1897.80 0.420 182.84 1898.80 0.414 183.40 1899.80 0.409 183.98 1900.80 0.403 184.57 1901.80 0.397 185.18 1902.80 0.392 185.81 1903.80 0.386 186.45 1904.80 0.380 187.12 1905.80 0.374 187.81 1906.80 0.368 188.51 1907.80 0.363 189.25 1908.80 0.357 190.00 1909.80 0.351 190.78 1910.80 0.345 191.59 1911.80 0.339 192.43 1912.80 0.333 193.29 1913.80 0.327 194.19 1914.80 0.321 195.12 1915.80 0.315 196.09 1916.80 0.309 197.10 1917.80 0.303 198.14 1918.80 0.297 199.23 1919.80 0.291 200.36 1920.80 0.285 201.54 1921.80 0.279 202.77 1922.80 0.273 204.05 1923.80 0.267 205.39 1924.80 0.261 206.79 1925.80 0.256 208.25 1926.80 0.250 209.78 1927.80 0.244 211.38 1928.80 0.239 213.06 1929.80 0.233 214.81 1930.80 0.228 216.65 1931.80 0.223 218.57 1932.80 0.218 220.59 1933.80 0.213 222.70 1934.80 0.208 224.90 1935.80 0.203 227.21 1936.80 0.199 229.62 1937.80 0.195 232.14 1938.80 0.191 234.76 1939.80 0.188 237.48 1940.80 0.184 240.31 1941.80 0.181 243.24 1942.80 0.178 246.27 1943.80 0.176 249.38 1944.80 0.174 252.57 1945.80 0.172 255.84 1946.80 0.171 259.16 1947.80 0.170 262.54 1948.80 0.169 265.94 1949.80 0.169 269.38 1950.80 0.168 272.82 1951.80 0.169 276.26 1952.80 0.169 279.70 1953.80 0.169 283.11 1954.80 0.170 286.50 1955.80 0.171 289.86 1956.80 0.172 293.18 1957.80 0.172 296.48 1958.80 0.173 299.76 1959.80 0.173 303.01 1960.80 0.173 306.27 1961.80 0.173 309.53 1962.80 0.172 312.83 1963.80 0.170 316.18 1964.80 0.167 319.62 1965.80 0.164 323.19 1966.80 0.159 326.94 1967.80 0.154 330.94 1968.80 0.147 335.26 1969.80 0.140 340.00 1970.80 0.132 345.28 1971.80 0.124 351.23 1972.80 0.116 358.01 1973.80 0.109 5.73 1974.80 0.103 14.47 1975.80 0.099 24.13 1976.80 0.096 34.45 1977.80 0.097 44.95 1978.80 0.100 55.09 1979.80 0.105 64.42 1980.80 0.112 72.71 1981.80 0.121 79.89 1982.80 0.131 86.04 1983.80 0.142 91.29 1984.80 0.153 95.79 1985.80 0.165 99.65 1986.80 0.177 103.00 1987.80 0.189 105.92 1988.80 0.201 108.50 1989.80 0.213 110.78 1990.80 0.225 112.82 1991.80 0.237 114.66 1992.80 0.248 116.32 1993.80 0.260 117.83 1994.80 0.271 119.22 1995.80 0.282 120.50 1996.80 0.293 121.67 1997.80 0.304 122.77 1998.80 0.315 123.79 1999.80 0.325 124.74 2000.80 0.335 125.64 2001.80 0.345 126.48 2002.80 0.355 127.28 2003.80 0.365 128.03 2004.80 0.374 128.75 2005.80 0.384 129.43 2006.80 0.393 130.08 2007.80 0.402 130.70 2008.80 0.410 131.29 2009.80 0.419 131.86 2010.80 0.427 132.41 2011.80 0.435 132.93 2012.80 0.443 133.44 2013.80 0.451 133.92 2014.80 0.459 134.40 2015.80 0.467 134.85 2016.80 0.474 135.29 2017.80 0.481 135.72 2018.80 0.489 136.14 2019.80 0.496 136.54 2020.80 0.502 136.93 2021.80 0.509 137.31 2022.80 0.516 137.69 2023.80 0.522 138.05 2024.80 0.528 138.40 2025.80 0.534 138.75 2026.80 0.541 139.09 2027.80 0.546 139.42 2028.80 0.552 139.74 2029.80 0.558 140.06 2030.80 0.563 140.37 2031.80 0.569 140.67 2032.80 0.574 140.97 2033.80 0.579 141.27 2034.80 0.584 141.56 2035.80 0.589 141.84 2036.80 0.594 142.12 2037.80 0.599 142.39 2038.80 0.604 142.66 2039.80 0.608 142.93 2040.80 0.612 143.19 2041.80 0.617 143.45 2042.80 0.621 143.70 2043.80 0.625 143.96 2044.80 0.629 144.20 2045.80 0.633 144.45 2046.80 0.637 144.69 2047.80 0.641 144.93 2048.80 0.644 145.17 2049.80 0.648 145.40 2050.80 0.651 145.63 2051.80 0.654 145.86 2052.80 0.658 146.09 2053.80 0.661 146.32 2054.80 0.664 146.54 2055.80 0.667 146.76 2056.80 0.670 146.98 2057.80 0.673 147.19 2058.80 0.675 147.41 2059.80 0.678 147.62 2060.80 0.681 147.83 2061.80 0.683 148.04 2062.80 0.685 148.25 2063.80 0.688 148.46 2064.80 0.690 148.67 2065.80 0.692 148.87 2066.80 0.694 149.07 2067.80 0.696 149.28 2068.80 0.698 149.48 2069.80 0.700 149.68 2070.80 0.702 149.88 2071.80 0.703 150.07 2072.80 0.705 150.27 2073.80 0.706 150.47 2074.80 0.708 150.66 2075.80 0.709 150.86 2076.80 0.711 151.05 2077.80 0.712 151.24 2078.80 0.713 151.44 2079.80 0.714 151.63 2080.80 0.715 151.82 2081.80 0.716 152.01 2082.80 0.717 152.20 2083.80 0.718 152.39 2084.80 0.719 152.58 2085.80 0.719 152.77 2086.80 0.720 152.96 2087.80 0.720 153.14 2088.80 0.721 153.33 2089.80 0.721 153.52 2090.80 0.722 153.71 2091.80 0.722 153.90 2092.80 0.722 154.08 2093.80 0.722 154.27 2094.80 0.722 154.46 2095.80 0.722 154.65 2096.80 0.722 154.83 2097.80 0.722 155.02 2098.80 0.722 155.21 2099.80 0.722 155.39 2100.80 0.721 155.58 2101.80 0.721 155.77 2102.80 0.721 155.96 2103.80 0.720 156.15 2104.80 0.719 156.33 2105.80 0.719 156.52 2106.80 0.718 156.71 2107.80 0.717 156.90 2108.80 0.717 157.09 2109.80 0.716 157.28 2110.80 0.715 157.47 2111.80 0.714 157.67 2112.80 0.713 157.86 2113.80 0.712 158.05 2114.80 0.711 158.24 2115.80 0.709 158.44 2116.80 0.708 158.63 2117.80 0.707 158.83 2118.80 0.705 159.02 2119.80 0.704 159.22 2120.80 0.702 159.42 2121.80 0.701 159.62 2122.80 0.699 159.81 2123.80 0.697 160.01 2124.80 0.696 160.22 2125.80 0.694 160.42 2126.80 0.692 160.62 2127.80 0.690 160.83 2128.80 0.688 161.03 2129.80 0.686 161.24 2130.80 0.684 161.45 2131.80 0.682 161.66 2132.80 0.680 161.87 2133.80 0.677 162.08 2134.80 0.675 162.29 2135.80 0.673 162.51 2136.80 0.670 162.73 2137.80 0.668 162.94 2138.80 0.665 163.16 2139.80 0.663 163.39 2140.80 0.660 163.61 2141.80 0.657 163.83 2142.80 0.654 164.06 2143.80 0.652 164.29 2144.80 0.649 164.52 2145.80 0.646 164.75 2146.80 0.643 164.99 2147.80 0.640 165.23 2148.80 0.637 165.47 2149.80 0.634 165.71 2150.80 0.630 165.95 2151.80 0.627 166.20 2152.80 0.624 166.45 2153.80 0.621 166.70 2154.80 0.617 166.96 2155.80 0.614 167.21 2156.80 0.610 167.48 2157.80 0.607 167.74 2158.80 0.603 168.01 2159.80 0.599 168.28 2160.80 0.596 168.55 2161.80 0.592 168.83 2162.80 0.588 169.11 2163.80 0.584 169.39 2164.80 0.580 169.68 2165.80 0.576 169.97 2166.80 0.572 170.27 2167.80 0.568 170.57 2168.80 0.564 170.87 2169.80 0.560 171.18 2170.80 0.555 171.50 2171.80 0.551 171.82 2172.80 0.547 172.14 2173.80 0.542 172.47 2174.80 0.538 172.81
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:35:03 |