| WDS: | R321 | WDS ID/Discoverer |
| P: | 186.419 | Orbital period (years) |
| a: | 1.06149 | Semi-major axis (arcseconds) |
| i: | 139.301 | Inclination (degrees) |
| Ω: | 152.349 | Longitude of ascending node (degrees) |
| T: | 1949.198 | Epoch of periastron passage (year) |
| e: | 0.69564 | Eccentricity |
| ω: | 227.418 | Longitude of periastron (degrees) |
| Start-Year: | 1931.7904 | Year |
| End-Year: | 2118.2096 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for R321 |
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| Position: | 202652.97-372410.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20269-3724 | WDS designation |
| Discoverer Code: | R321 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 194433 | HD catalog number |
| Hipparcos number: | 100852 | Hipparcos catalog number |
| V1: | 6.58 | Magnitude of the primary |
| V2: | 8.09 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2013 | Date of last observation |
| Orbit grade: | 3 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | 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 1.603 120.22 -------------------------- 1931.79 0.649 38.57 1932.79 0.630 35.67 1933.79 0.612 32.60 1934.79 0.594 29.34 1935.79 0.575 25.87 1936.79 0.557 22.16 1937.79 0.538 18.21 1938.79 0.519 13.97 1939.79 0.500 9.41 1940.79 0.481 4.48 1941.79 0.461 359.14 1942.79 0.440 353.31 1943.79 0.418 346.88 1944.79 0.395 339.71 1945.79 0.370 331.62 1946.79 0.344 322.33 1947.79 0.317 311.47 1948.79 0.292 298.66 1949.79 0.273 283.73 1950.79 0.263 267.11 1951.79 0.268 250.15 1952.79 0.285 234.52 1953.79 0.314 221.24 1954.79 0.350 210.45 1955.79 0.391 201.79 1956.79 0.433 194.79 1957.79 0.476 189.04 1958.79 0.519 184.24 1959.79 0.561 180.17 1960.79 0.602 176.66 1961.79 0.642 173.60 1962.79 0.680 170.88 1963.79 0.718 168.46 1964.79 0.754 166.27 1965.79 0.789 164.27 1966.79 0.822 162.45 1967.79 0.855 160.76 1968.79 0.886 159.19 1969.79 0.916 157.73 1970.79 0.945 156.37 1971.79 0.973 155.08 1972.79 1.000 153.86 1973.79 1.027 152.71 1974.79 1.052 151.61 1975.79 1.077 150.56 1976.79 1.100 149.56 1977.79 1.123 148.61 1978.79 1.145 147.68 1979.79 1.167 146.80 1980.79 1.187 145.94 1981.79 1.207 145.11 1982.79 1.226 144.31 1983.79 1.245 143.54 1984.79 1.263 142.78 1985.79 1.280 142.05 1986.79 1.297 141.34 1987.79 1.313 140.64 1988.79 1.329 139.96 1989.79 1.344 139.30 1990.79 1.359 138.65 1991.79 1.373 138.02 1992.79 1.386 137.39 1993.79 1.399 136.78 1994.79 1.412 136.18 1995.79 1.424 135.59 1996.79 1.435 135.01 1997.79 1.446 134.44 1998.79 1.457 133.88 1999.79 1.467 133.32 2000.79 1.477 132.78 2001.79 1.487 132.24 2002.79 1.496 131.71 2003.79 1.504 131.18 2004.79 1.512 130.66 2005.79 1.520 130.14 2006.79 1.528 129.63 2007.79 1.535 129.13 2008.79 1.541 128.62 2009.79 1.548 128.13 2010.79 1.553 127.64 2011.79 1.559 127.15 2012.79 1.564 126.66 2013.79 1.569 126.18 2014.79 1.574 125.70 2015.79 1.578 125.22 2016.79 1.582 124.75 2017.79 1.585 124.27 2018.79 1.589 123.80 2019.79 1.592 123.33 2020.79 1.594 122.87 2021.79 1.596 122.40 2022.79 1.598 121.94 2023.79 1.600 121.47 2024.79 1.601 121.01 2025.79 1.602 120.55 2026.79 1.603 120.09 2027.79 1.604 119.63 2028.79 1.604 119.17 2029.79 1.604 118.70 2030.79 1.603 118.24 2031.79 1.603 117.78 2032.79 1.602 117.32 2033.79 1.601 116.86 2034.79 1.599 116.40 2035.79 1.597 115.93 2036.79 1.595 115.47 2037.79 1.593 115.00 2038.79 1.590 114.53 2039.79 1.588 114.06 2040.79 1.584 113.59 2041.79 1.581 113.12 2042.79 1.577 112.64 2043.79 1.574 112.17 2044.79 1.569 111.69 2045.79 1.565 111.20 2046.79 1.560 110.72 2047.79 1.555 110.23 2048.79 1.550 109.74 2049.79 1.545 109.24 2050.79 1.539 108.75 2051.79 1.533 108.24 2052.79 1.527 107.74 2053.79 1.521 107.23 2054.79 1.514 106.71 2055.79 1.507 106.19 2056.79 1.500 105.67 2057.79 1.493 105.14 2058.79 1.485 104.61 2059.79 1.477 104.07 2060.79 1.469 103.52 2061.79 1.461 102.97 2062.79 1.452 102.41 2063.79 1.444 101.84 2064.79 1.434 101.27 2065.79 1.425 100.69 2066.79 1.416 100.10 2067.79 1.406 99.51 2068.79 1.396 98.91 2069.79 1.386 98.29 2070.79 1.375 97.67 2071.79 1.365 97.04 2072.79 1.354 96.40 2073.79 1.343 95.75 2074.79 1.331 95.08 2075.79 1.320 94.41 2076.79 1.308 93.72 2077.79 1.296 93.02 2078.79 1.284 92.31 2079.79 1.271 91.59 2080.79 1.259 90.85 2081.79 1.246 90.09 2082.79 1.233 89.32 2083.79 1.219 88.53 2084.79 1.206 87.72 2085.79 1.192 86.90 2086.79 1.178 86.06 2087.79 1.164 85.19 2088.79 1.149 84.30 2089.79 1.135 83.40 2090.79 1.120 82.46 2091.79 1.105 81.51 2092.79 1.090 80.52 2093.79 1.074 79.51 2094.79 1.059 78.47 2095.79 1.043 77.39 2096.79 1.027 76.29 2097.79 1.011 75.15 2098.79 0.994 73.97 2099.79 0.978 72.75 2100.79 0.961 71.48 2101.79 0.944 70.18 2102.79 0.927 68.82 2103.79 0.910 67.42 2104.79 0.892 65.96 2105.79 0.875 64.44 2106.79 0.857 62.86 2107.79 0.839 61.21 2108.79 0.821 59.49 2109.79 0.803 57.69 2110.79 0.785 55.81 2111.79 0.767 53.85 2112.79 0.749 51.78 2113.79 0.730 49.62 2114.79 0.712 47.34 2115.79 0.694 44.94 2116.79 0.675 42.41 2117.79 0.657 39.73
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:15:07 |