| WDS: | COU812 | WDS ID/Discoverer |
| P: | 173.330 | Orbital period (years) |
| a: | 0.57 | Semi-major axis (arcseconds) |
| i: | 40.0 | Inclination (degrees) |
| Ω: | 53.0 | Longitude of ascending node (degrees) |
| T: | 1950.720 | Epoch of periastron passage (year) |
| e: | 0.5 | Eccentricity |
| ω: | 77.8 | Longitude of periastron (degrees) |
| Start-Year: | 1938.335 | Year |
| End-Year: | 2111.665 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for COU812 |
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| Position: | 180909.93+312910.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18092+3129 | WDS designation |
| Discoverer Code: | COU812 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 10.77 | Magnitude of the primary |
| V2: | 10.85 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 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: | Cou1999b | 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 0.676 296.42 -------------------------- 1938.34 0.373 56.44 1939.34 0.361 59.76 1940.34 0.348 63.33 1941.34 0.334 67.18 1942.34 0.320 71.37 1943.34 0.306 75.94 1944.34 0.291 80.97 1945.34 0.277 86.51 1946.34 0.263 92.64 1947.34 0.251 99.43 1948.34 0.239 106.90 1949.34 0.230 115.04 1950.34 0.223 123.76 1951.34 0.220 132.89 1952.34 0.220 142.17 1953.34 0.223 151.32 1954.34 0.230 160.07 1955.34 0.239 168.24 1956.34 0.251 175.71 1957.34 0.264 182.46 1958.34 0.279 188.53 1959.34 0.295 193.98 1960.34 0.311 198.87 1961.34 0.327 203.27 1962.34 0.343 207.26 1963.34 0.359 210.90 1964.34 0.375 214.23 1965.34 0.390 217.29 1966.34 0.405 220.13 1967.34 0.419 222.77 1968.34 0.433 225.24 1969.34 0.446 227.56 1970.34 0.459 229.74 1971.34 0.471 231.82 1972.34 0.483 233.78 1973.34 0.494 235.66 1974.34 0.505 237.46 1975.34 0.515 239.18 1976.34 0.525 240.84 1977.34 0.534 242.44 1978.34 0.543 243.98 1979.34 0.551 245.47 1980.34 0.559 246.93 1981.34 0.567 248.34 1982.34 0.575 249.71 1983.34 0.582 251.05 1984.34 0.588 252.36 1985.34 0.595 253.64 1986.34 0.601 254.89 1987.34 0.606 256.12 1988.34 0.612 257.33 1989.34 0.617 258.52 1990.34 0.622 259.68 1991.34 0.626 260.83 1992.34 0.631 261.97 1993.34 0.635 263.09 1994.34 0.638 264.19 1995.34 0.642 265.28 1996.34 0.646 266.36 1997.34 0.649 267.43 1998.34 0.652 268.49 1999.34 0.655 269.54 2000.34 0.657 270.58 2001.34 0.660 271.61 2002.34 0.662 272.64 2003.34 0.664 273.66 2004.34 0.666 274.67 2005.34 0.668 275.68 2006.34 0.669 276.68 2007.34 0.671 277.68 2008.34 0.672 278.67 2009.34 0.673 279.66 2010.34 0.674 280.64 2011.34 0.675 281.63 2012.34 0.676 282.61 2013.34 0.677 283.59 2014.34 0.677 284.56 2015.34 0.678 285.54 2016.34 0.678 286.51 2017.34 0.678 287.49 2018.34 0.678 288.46 2019.34 0.678 289.43 2020.34 0.678 290.41 2021.34 0.678 291.38 2022.34 0.678 292.35 2023.34 0.678 293.33 2024.34 0.677 294.30 2025.34 0.677 295.28 2026.34 0.676 296.26 2027.34 0.675 297.24 2028.34 0.675 298.22 2029.34 0.674 299.21 2030.34 0.673 300.19 2031.34 0.672 301.18 2032.34 0.671 302.18 2033.34 0.670 303.17 2034.34 0.669 304.17 2035.34 0.668 305.17 2036.34 0.667 306.18 2037.34 0.665 307.19 2038.34 0.664 308.20 2039.34 0.663 309.22 2040.34 0.661 310.24 2041.34 0.660 311.27 2042.34 0.658 312.30 2043.34 0.657 313.34 2044.34 0.655 314.38 2045.34 0.653 315.42 2046.34 0.652 316.47 2047.34 0.650 317.53 2048.34 0.648 318.59 2049.34 0.646 319.66 2050.34 0.644 320.74 2051.34 0.643 321.82 2052.34 0.641 322.91 2053.34 0.639 324.00 2054.34 0.637 325.10 2055.34 0.635 326.21 2056.34 0.633 327.32 2057.34 0.631 328.45 2058.34 0.628 329.58 2059.34 0.626 330.71 2060.34 0.624 331.86 2061.34 0.622 333.01 2062.34 0.620 334.17 2063.34 0.617 335.34 2064.34 0.615 336.52 2065.34 0.613 337.71 2066.34 0.610 338.91 2067.34 0.608 340.11 2068.34 0.605 341.33 2069.34 0.603 342.56 2070.34 0.600 343.79 2071.34 0.598 345.04 2072.34 0.595 346.30 2073.34 0.592 347.57 2074.34 0.590 348.85 2075.34 0.587 350.14 2076.34 0.584 351.45 2077.34 0.581 352.77 2078.34 0.578 354.10 2079.34 0.575 355.45 2080.34 0.572 356.81 2081.34 0.568 358.19 2082.34 0.565 359.58 2083.34 0.562 0.99 2084.34 0.558 2.42 2085.34 0.554 3.87 2086.34 0.551 5.33 2087.34 0.547 6.82 2088.34 0.543 8.33 2089.34 0.539 9.86 2090.34 0.534 11.42 2091.34 0.530 13.00 2092.34 0.525 14.61 2093.34 0.520 16.25 2094.34 0.515 17.92 2095.34 0.510 19.62 2096.34 0.504 21.37 2097.34 0.498 23.15 2098.34 0.492 24.97 2099.34 0.486 26.84 2100.34 0.479 28.77 2101.34 0.472 30.74 2102.34 0.465 32.78 2103.34 0.457 34.89 2104.34 0.449 37.08 2105.34 0.440 39.34 2106.34 0.431 41.70 2107.34 0.421 44.17 2108.34 0.411 46.75 2109.34 0.400 49.47 2110.34 0.389 52.34 2111.34 0.377 55.39
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:48:18 |