| WDS: | I454AB | WDS ID/Discoverer |
| P: | 213.000 | Orbital period (years) |
| a: | 1.03 | Semi-major axis (arcseconds) |
| i: | 76.0 | Inclination (degrees) |
| Ω: | 140.0 | Longitude of ascending node (degrees) |
| T: | 2057.000 | Epoch of periastron passage (year) |
| e: | 0.45 | Eccentricity |
| ω: | 175.0 | Longitude of periastron (degrees) |
| Start-Year: | 1918.5 | Year |
| End-Year: | 2131.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for I454AB |
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| Position: | 020541.51-242233.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02057-2423 | WDS designation |
| Discoverer Code: | I454AB | Discover designation and components |
| ADS number: | 1652 | Aitken Double Star catalog |
| HD number: | 12889 | HD catalog number |
| Hipparcos number: | 9774 | Hipparcos catalog number |
| V1: | 8.62 | Magnitude of the primary |
| V2: | 11.32 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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: | Tok2014b | 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 0.369 174.88 -------------------------- 1918.50 1.230 132.35 1919.50 1.244 132.60 1920.50 1.258 132.85 1921.50 1.272 133.09 1922.50 1.285 133.33 1923.50 1.298 133.56 1924.50 1.310 133.79 1925.50 1.322 134.01 1926.50 1.334 134.23 1927.50 1.345 134.45 1928.50 1.355 134.66 1929.50 1.366 134.87 1930.50 1.376 135.07 1931.50 1.385 135.28 1932.50 1.394 135.48 1933.50 1.403 135.68 1934.50 1.411 135.87 1935.50 1.419 136.06 1936.50 1.427 136.26 1937.50 1.434 136.45 1938.50 1.440 136.63 1939.50 1.446 136.82 1940.50 1.452 137.00 1941.50 1.458 137.19 1942.50 1.463 137.37 1943.50 1.467 137.55 1944.50 1.472 137.73 1945.50 1.475 137.91 1946.50 1.479 138.08 1947.50 1.482 138.26 1948.50 1.484 138.44 1949.50 1.486 138.61 1950.50 1.488 138.79 1951.50 1.489 138.96 1952.50 1.490 139.14 1953.50 1.491 139.31 1954.50 1.491 139.49 1955.50 1.491 139.66 1956.50 1.490 139.83 1957.50 1.489 140.01 1958.50 1.487 140.18 1959.50 1.485 140.36 1960.50 1.483 140.53 1961.50 1.480 140.71 1962.50 1.477 140.89 1963.50 1.473 141.07 1964.50 1.469 141.25 1965.50 1.465 141.43 1966.50 1.460 141.61 1967.50 1.454 141.79 1968.50 1.449 141.97 1969.50 1.442 142.16 1970.50 1.436 142.35 1971.50 1.429 142.53 1972.50 1.421 142.73 1973.50 1.413 142.92 1974.50 1.405 143.11 1975.50 1.396 143.31 1976.50 1.387 143.51 1977.50 1.377 143.71 1978.50 1.367 143.92 1979.50 1.357 144.13 1980.50 1.346 144.34 1981.50 1.335 144.56 1982.50 1.323 144.77 1983.50 1.310 145.00 1984.50 1.298 145.23 1985.50 1.285 145.46 1986.50 1.271 145.70 1987.50 1.257 145.94 1988.50 1.242 146.19 1989.50 1.227 146.44 1990.50 1.212 146.70 1991.50 1.196 146.97 1992.50 1.180 147.24 1993.50 1.163 147.52 1994.50 1.146 147.82 1995.50 1.128 148.12 1996.50 1.110 148.42 1997.50 1.091 148.74 1998.50 1.072 149.08 1999.50 1.052 149.42 2000.50 1.032 149.78 2001.50 1.012 150.15 2002.50 0.991 150.53 2003.50 0.970 150.94 2004.50 0.948 151.36 2005.50 0.925 151.80 2006.50 0.903 152.26 2007.50 0.879 152.75 2008.50 0.856 153.27 2009.50 0.832 153.81 2010.50 0.807 154.39 2011.50 0.782 155.00 2012.50 0.757 155.66 2013.50 0.731 156.36 2014.50 0.705 157.11 2015.50 0.678 157.92 2016.50 0.651 158.80 2017.50 0.624 159.75 2018.50 0.596 160.79 2019.50 0.568 161.94 2020.50 0.540 163.20 2021.50 0.511 164.60 2022.50 0.483 166.17 2023.50 0.454 167.94 2024.50 0.426 169.94 2025.50 0.397 172.24 2026.50 0.369 174.88 2027.50 0.341 177.96 2028.50 0.314 181.58 2029.50 0.288 185.87 2030.50 0.264 190.98 2031.50 0.241 197.08 2032.50 0.222 204.33 2033.50 0.206 212.83 2034.50 0.195 222.48 2035.50 0.190 232.94 2036.50 0.192 243.61 2037.50 0.199 253.84 2038.50 0.211 263.09 2039.50 0.228 271.14 2040.50 0.248 277.99 2041.50 0.271 283.75 2042.50 0.295 288.60 2043.50 0.320 292.70 2044.50 0.345 296.20 2045.50 0.371 299.23 2046.50 0.396 301.87 2047.50 0.420 304.20 2048.50 0.443 306.28 2049.50 0.465 308.16 2050.50 0.485 309.88 2051.50 0.504 311.46 2052.50 0.520 312.94 2053.50 0.534 314.33 2054.50 0.546 315.66 2055.50 0.555 316.94 2056.50 0.562 318.18 2057.50 0.566 319.39 2058.50 0.567 320.60 2059.50 0.566 321.80 2060.50 0.562 323.02 2061.50 0.556 324.26 2062.50 0.547 325.53 2063.50 0.535 326.86 2064.50 0.522 328.24 2065.50 0.507 329.71 2066.50 0.489 331.27 2067.50 0.471 332.95 2068.50 0.451 334.77 2069.50 0.430 336.77 2070.50 0.408 338.99 2071.50 0.385 341.45 2072.50 0.362 344.23 2073.50 0.339 347.38 2074.50 0.316 350.99 2075.50 0.294 355.15 2076.50 0.274 359.97 2077.50 0.254 5.54 2078.50 0.237 11.98 2079.50 0.223 19.31 2080.50 0.213 27.49 2081.50 0.207 36.33 2082.50 0.206 45.47 2083.50 0.209 54.51 2084.50 0.218 63.04 2085.50 0.230 70.80 2086.50 0.246 77.66 2087.50 0.265 83.62 2088.50 0.286 88.75 2089.50 0.308 93.16 2090.50 0.332 96.95 2091.50 0.356 100.23 2092.50 0.382 103.08 2093.50 0.407 105.57 2094.50 0.433 107.77 2095.50 0.460 109.71 2096.50 0.486 111.45 2097.50 0.512 113.01 2098.50 0.538 114.41 2099.50 0.564 115.69 2100.50 0.590 116.85 2101.50 0.616 117.91 2102.50 0.642 118.89 2103.50 0.667 119.80 2104.50 0.692 120.64 2105.50 0.717 121.42 2106.50 0.741 122.15 2107.50 0.765 122.83 2108.50 0.789 123.47 2109.50 0.812 124.08 2110.50 0.835 124.65 2111.50 0.858 125.19 2112.50 0.880 125.70 2113.50 0.902 126.19 2114.50 0.924 126.65 2115.50 0.945 127.10 2116.50 0.966 127.52 2117.50 0.986 127.93 2118.50 1.006 128.32 2119.50 1.026 128.69 2120.50 1.045 129.06 2121.50 1.064 129.40 2122.50 1.082 129.74 2123.50 1.100 130.07 2124.50 1.118 130.38 2125.50 1.135 130.69 2126.50 1.152 130.98 2127.50 1.168 131.27 2128.50 1.184 131.55 2129.50 1.200 131.82 2130.50 1.215 132.09
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:56:59 |