| WDS: | BU75AB | WDS ID/Discoverer |
| P: | 150.370 | Orbital period (years) |
| a: | 0.7597 | Semi-major axis (arcseconds) |
| i: | 63.77 | Inclination (degrees) |
| Ω: | 29.66 | Longitude of ascending node (degrees) |
| T: | 1969.252 | Epoch of periastron passage (year) |
| e: | 0.5763 | Eccentricity |
| ω: | 193.92 | Longitude of periastron (degrees) |
| Start-Year: | 1949.815 | Year |
| End-Year: | 2100.185 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU75AB |
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| Position: | 215531.42+105249.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21555+1053 | WDS designation |
| Discoverer Code: | BU75AB | Discover designation and components |
| ADS number: | 15447 | Aitken Double Star catalog |
| HD number: | 208348 | HD catalog number |
| Hipparcos number: | 108228 | Hipparcos catalog number |
| V1: | 8.40 | Magnitude of the primary |
| V2: | 8.56 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | Date of last observation | |
| Orbit grade: | 2 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | FSU2025 | 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 1.148 29.39 -------------------------- 1949.82 0.323 94.57 1950.82 0.304 99.66 1951.82 0.288 105.36 1952.82 0.273 111.73 1953.82 0.262 118.72 1954.82 0.253 126.27 1955.82 0.249 134.22 1956.82 0.248 142.35 1957.82 0.250 150.42 1958.82 0.256 158.21 1959.82 0.265 165.57 1960.82 0.276 172.40 1961.82 0.288 178.69 1962.82 0.300 184.49 1963.82 0.311 189.85 1964.82 0.320 194.87 1965.82 0.326 199.65 1966.82 0.328 204.30 1967.82 0.326 208.95 1968.82 0.319 213.74 1969.82 0.307 218.82 1970.82 0.291 224.41 1971.82 0.271 230.74 1972.82 0.250 238.11 1973.82 0.229 246.86 1974.82 0.210 257.26 1975.82 0.197 269.33 1976.82 0.192 282.62 1977.82 0.195 296.09 1978.82 0.206 308.62 1979.82 0.224 319.47 1980.82 0.248 328.47 1981.82 0.275 335.79 1982.82 0.305 341.75 1983.82 0.335 346.64 1984.82 0.367 350.70 1985.82 0.398 354.12 1986.82 0.430 357.03 1987.82 0.461 359.55 1988.82 0.492 1.75 1989.82 0.522 3.69 1990.82 0.551 5.43 1991.82 0.580 6.99 1992.82 0.608 8.40 1993.82 0.636 9.69 1994.82 0.662 10.88 1995.82 0.688 11.97 1996.82 0.713 12.99 1997.82 0.738 13.94 1998.82 0.761 14.82 1999.82 0.784 15.66 2000.82 0.806 16.45 2001.82 0.827 17.20 2002.82 0.848 17.91 2003.82 0.868 18.59 2004.82 0.887 19.24 2005.82 0.906 19.86 2006.82 0.923 20.45 2007.82 0.941 21.03 2008.82 0.957 21.58 2009.82 0.973 22.12 2010.82 0.988 22.64 2011.82 1.003 23.14 2012.82 1.017 23.63 2013.82 1.030 24.11 2014.82 1.042 24.57 2015.82 1.055 25.03 2016.82 1.066 25.47 2017.82 1.077 25.90 2018.82 1.087 26.33 2019.82 1.097 26.75 2020.82 1.106 27.16 2021.82 1.115 27.57 2022.82 1.123 27.96 2023.82 1.130 28.36 2024.82 1.137 28.75 2025.82 1.143 29.13 2026.82 1.149 29.51 2027.82 1.155 29.89 2028.82 1.159 30.26 2029.82 1.164 30.63 2030.82 1.168 31.00 2031.82 1.171 31.36 2032.82 1.174 31.72 2033.82 1.176 32.09 2034.82 1.178 32.45 2035.82 1.179 32.81 2036.82 1.180 33.16 2037.82 1.180 33.52 2038.82 1.180 33.88 2039.82 1.179 34.24 2040.82 1.178 34.60 2041.82 1.176 34.96 2042.82 1.174 35.32 2043.82 1.171 35.68 2044.82 1.168 36.05 2045.82 1.164 36.42 2046.82 1.160 36.79 2047.82 1.156 37.16 2048.82 1.151 37.53 2049.82 1.145 37.91 2050.82 1.140 38.29 2051.82 1.133 38.68 2052.82 1.126 39.07 2053.82 1.119 39.47 2054.82 1.111 39.87 2055.82 1.103 40.28 2056.82 1.094 40.69 2057.82 1.085 41.11 2058.82 1.075 41.54 2059.82 1.065 41.97 2060.82 1.055 42.42 2061.82 1.044 42.87 2062.82 1.032 43.33 2063.82 1.021 43.81 2064.82 1.008 44.29 2065.82 0.995 44.79 2066.82 0.982 45.30 2067.82 0.968 45.82 2068.82 0.954 46.36 2069.82 0.939 46.92 2070.82 0.924 47.50 2071.82 0.909 48.09 2072.82 0.893 48.71 2073.82 0.876 49.34 2074.82 0.859 50.01 2075.82 0.842 50.70 2076.82 0.824 51.41 2077.82 0.806 52.17 2078.82 0.787 52.95 2079.82 0.768 53.78 2080.82 0.749 54.64 2081.82 0.729 55.56 2082.82 0.709 56.52 2083.82 0.688 57.55 2084.82 0.667 58.64 2085.82 0.645 59.80 2086.82 0.623 61.04 2087.82 0.601 62.37 2088.82 0.579 63.80 2089.82 0.556 65.36 2090.82 0.533 67.04 2091.82 0.510 68.88 2092.82 0.487 70.89 2093.82 0.463 73.10 2094.82 0.440 75.55 2095.82 0.417 78.27 2096.82 0.394 81.30 2097.82 0.372 84.70 2098.82 0.351 88.53 2099.82 0.330 92.84
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:34:18 |