| WDS: | A980AB | WDS ID/Discoverer |
| P: | 231.000 | Orbital period (years) |
| a: | 0.38 | Semi-major axis (arcseconds) |
| i: | 133.4 | Inclination (degrees) |
| Ω: | 147.7 | Longitude of ascending node (degrees) |
| T: | 1961.000 | Epoch of periastron passage (year) |
| e: | 0.18 | Eccentricity |
| ω: | 68.0 | Longitude of periastron (degrees) |
| Start-Year: | 1909.5 | Year |
| End-Year: | 2140.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A980AB |
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| Position: | 032823.56+601520.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 03284+6015 | WDS designation |
| Discoverer Code: | A980AB | Discover designation and components |
| ADS number: | 2538 | Aitken Double Star catalog |
| HD number: | 21203 | HD catalog number |
| Hipparcos number: | 16177 | Hipparcos catalog number |
| V1: | 6.73 | Magnitude of the primary |
| V2: | 8.29 | Magnitude of the secondary |
| Equinox: | 1950 | Equinox |
| Date: | 1988 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Baz1994 | 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 0.403 321.49 -------------------------- 1909.50 0.350 171.69 1910.50 0.351 170.45 1911.50 0.351 169.22 1912.50 0.352 167.99 1913.50 0.353 166.76 1914.50 0.353 165.54 1915.50 0.354 164.33 1916.50 0.354 163.11 1917.50 0.354 161.90 1918.50 0.354 160.68 1919.50 0.354 159.47 1920.50 0.353 158.25 1921.50 0.353 157.03 1922.50 0.352 155.81 1923.50 0.352 154.58 1924.50 0.351 153.35 1925.50 0.350 152.11 1926.50 0.348 150.86 1927.50 0.347 149.60 1928.50 0.345 148.33 1929.50 0.344 147.05 1930.50 0.342 145.75 1931.50 0.340 144.44 1932.50 0.337 143.11 1933.50 0.335 141.76 1934.50 0.332 140.40 1935.50 0.329 139.01 1936.50 0.327 137.59 1937.50 0.323 136.15 1938.50 0.320 134.68 1939.50 0.317 133.18 1940.50 0.313 131.65 1941.50 0.310 130.08 1942.50 0.306 128.48 1943.50 0.302 126.83 1944.50 0.298 125.14 1945.50 0.294 123.40 1946.50 0.289 121.61 1947.50 0.285 119.77 1948.50 0.281 117.87 1949.50 0.276 115.91 1950.50 0.272 113.89 1951.50 0.268 111.80 1952.50 0.263 109.64 1953.50 0.259 107.41 1954.50 0.255 105.10 1955.50 0.250 102.72 1956.50 0.246 100.25 1957.50 0.242 97.71 1958.50 0.239 95.08 1959.50 0.235 92.37 1960.50 0.232 89.58 1961.50 0.229 86.71 1962.50 0.226 83.77 1963.50 0.223 80.76 1964.50 0.221 77.68 1965.50 0.220 74.55 1966.50 0.218 71.38 1967.50 0.217 68.16 1968.50 0.216 64.92 1969.50 0.216 61.67 1970.50 0.216 58.42 1971.50 0.217 55.18 1972.50 0.218 51.97 1973.50 0.219 48.79 1974.50 0.221 45.65 1975.50 0.223 42.57 1976.50 0.226 39.56 1977.50 0.229 36.61 1978.50 0.232 33.75 1979.50 0.235 30.96 1980.50 0.239 28.26 1981.50 0.243 25.64 1982.50 0.247 23.11 1983.50 0.252 20.66 1984.50 0.256 18.30 1985.50 0.261 16.02 1986.50 0.265 13.82 1987.50 0.270 11.70 1988.50 0.275 9.65 1989.50 0.280 7.68 1990.50 0.285 5.77 1991.50 0.290 3.93 1992.50 0.295 2.15 1993.50 0.300 0.43 1994.50 0.305 358.76 1995.50 0.310 357.15 1996.50 0.314 355.59 1997.50 0.319 354.07 1998.50 0.324 352.60 1999.50 0.328 351.17 2000.50 0.333 349.78 2001.50 0.337 348.42 2002.50 0.341 347.10 2003.50 0.346 345.81 2004.50 0.350 344.55 2005.50 0.353 343.32 2006.50 0.357 342.12 2007.50 0.361 340.94 2008.50 0.364 339.78 2009.50 0.368 338.64 2010.50 0.371 337.53 2011.50 0.374 336.43 2012.50 0.377 335.35 2013.50 0.380 334.29 2014.50 0.382 333.24 2015.50 0.385 332.21 2016.50 0.387 331.19 2017.50 0.389 330.18 2018.50 0.391 329.18 2019.50 0.393 328.20 2020.50 0.395 327.22 2021.50 0.397 326.25 2022.50 0.398 325.29 2023.50 0.400 324.33 2024.50 0.401 323.38 2025.50 0.402 322.43 2026.50 0.403 321.49 2027.50 0.403 320.56 2028.50 0.404 319.62 2029.50 0.405 318.69 2030.50 0.405 317.77 2031.50 0.405 316.84 2032.50 0.405 315.91 2033.50 0.405 314.99 2034.50 0.405 314.06 2035.50 0.405 313.13 2036.50 0.404 312.20 2037.50 0.404 311.27 2038.50 0.403 310.34 2039.50 0.403 309.40 2040.50 0.402 308.46 2041.50 0.401 307.51 2042.50 0.400 306.57 2043.50 0.399 305.61 2044.50 0.397 304.65 2045.50 0.396 303.68 2046.50 0.395 302.71 2047.50 0.393 301.73 2048.50 0.392 300.74 2049.50 0.390 299.75 2050.50 0.388 298.75 2051.50 0.387 297.73 2052.50 0.385 296.71 2053.50 0.383 295.68 2054.50 0.381 294.63 2055.50 0.379 293.58 2056.50 0.377 292.51 2057.50 0.375 291.44 2058.50 0.372 290.35 2059.50 0.370 289.24 2060.50 0.368 288.13 2061.50 0.366 287.00 2062.50 0.363 285.85 2063.50 0.361 284.69 2064.50 0.359 283.52 2065.50 0.357 282.33 2066.50 0.354 281.13 2067.50 0.352 279.91 2068.50 0.350 278.67 2069.50 0.347 277.42 2070.50 0.345 276.15 2071.50 0.343 274.86 2072.50 0.340 273.55 2073.50 0.338 272.23 2074.50 0.336 270.89 2075.50 0.334 269.53 2076.50 0.331 268.16 2077.50 0.329 266.76 2078.50 0.327 265.35 2079.50 0.325 263.92 2080.50 0.323 262.47 2081.50 0.321 261.01 2082.50 0.320 259.53 2083.50 0.318 258.03 2084.50 0.316 256.52 2085.50 0.314 254.99 2086.50 0.313 253.44 2087.50 0.312 251.88 2088.50 0.310 250.31 2089.50 0.309 248.72 2090.50 0.308 247.12 2091.50 0.307 245.51 2092.50 0.306 243.89 2093.50 0.305 242.26 2094.50 0.304 240.62 2095.50 0.304 238.97 2096.50 0.303 237.32 2097.50 0.303 235.66 2098.50 0.302 234.00 2099.50 0.302 232.34 2100.50 0.302 230.67 2101.50 0.302 229.01 2102.50 0.302 227.34 2103.50 0.303 225.68 2104.50 0.303 224.02 2105.50 0.303 222.37 2106.50 0.304 220.72 2107.50 0.305 219.07 2108.50 0.305 217.44 2109.50 0.306 215.81 2110.50 0.307 214.20 2111.50 0.308 212.59 2112.50 0.309 210.99 2113.50 0.310 209.41 2114.50 0.312 207.84 2115.50 0.313 206.28 2116.50 0.314 204.73 2117.50 0.316 203.20 2118.50 0.317 201.68 2119.50 0.319 200.18 2120.50 0.320 198.69 2121.50 0.322 197.21 2122.50 0.323 195.75 2123.50 0.325 194.30 2124.50 0.327 192.87 2125.50 0.328 191.45 2126.50 0.330 190.05 2127.50 0.332 188.66 2128.50 0.333 187.29 2129.50 0.335 185.92 2130.50 0.337 184.57 2131.50 0.338 183.24 2132.50 0.340 181.91 2133.50 0.341 180.60 2134.50 0.343 179.30 2135.50 0.344 178.01 2136.50 0.345 176.73 2137.50 0.346 175.46 2138.50 0.348 174.19 2139.50 0.349 172.94
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:11:26 |