| WDS: | B1646AB | WDS ID/Discoverer |
| P: | 208.000 | Orbital period (years) |
| a: | 0.188 | Semi-major axis (arcseconds) |
| i: | 116.2 | Inclination (degrees) |
| Ω: | 15.9 | Longitude of ascending node (degrees) |
| T: | 2029.400 | Epoch of periastron passage (year) |
| e: | 0.6 | Eccentricity |
| ω: | 161.1 | Longitude of periastron (degrees) |
| Start-Year: | 1921.0 | Year |
| End-Year: | 2129.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for B1646AB |
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| Position: | 090723.26-435718.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 09074-4357 | WDS designation |
| Discoverer Code: | B1646AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 78547 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.5 | Magnitude of the primary |
| V2: | 9.9 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2019 | 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: | Tok2020e | 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 0.061 218.58 -------------------------- 1921.00 0.284 25.66 1922.00 0.285 25.39 1923.00 0.286 25.13 1924.00 0.287 24.86 1925.00 0.288 24.60 1926.00 0.288 24.34 1927.00 0.289 24.08 1928.00 0.290 23.82 1929.00 0.290 23.56 1930.00 0.291 23.31 1931.00 0.291 23.05 1932.00 0.291 22.80 1933.00 0.292 22.54 1934.00 0.292 22.29 1935.00 0.292 22.04 1936.00 0.292 21.78 1937.00 0.292 21.53 1938.00 0.292 21.28 1939.00 0.292 21.03 1940.00 0.292 20.77 1941.00 0.292 20.52 1942.00 0.292 20.27 1943.00 0.291 20.01 1944.00 0.291 19.76 1945.00 0.291 19.50 1946.00 0.290 19.25 1947.00 0.290 18.99 1948.00 0.289 18.73 1949.00 0.288 18.47 1950.00 0.288 18.21 1951.00 0.287 17.95 1952.00 0.286 17.68 1953.00 0.285 17.42 1954.00 0.284 17.15 1955.00 0.283 16.88 1956.00 0.282 16.61 1957.00 0.280 16.34 1958.00 0.279 16.06 1959.00 0.278 15.78 1960.00 0.276 15.50 1961.00 0.275 15.22 1962.00 0.273 14.93 1963.00 0.271 14.64 1964.00 0.270 14.34 1965.00 0.268 14.04 1966.00 0.266 13.74 1967.00 0.264 13.43 1968.00 0.262 13.12 1969.00 0.260 12.80 1970.00 0.258 12.48 1971.00 0.255 12.15 1972.00 0.253 11.82 1973.00 0.251 11.48 1974.00 0.248 11.13 1975.00 0.245 10.77 1976.00 0.243 10.41 1977.00 0.240 10.04 1978.00 0.237 9.66 1979.00 0.234 9.27 1980.00 0.231 8.87 1981.00 0.228 8.46 1982.00 0.225 8.04 1983.00 0.221 7.60 1984.00 0.218 7.16 1985.00 0.214 6.69 1986.00 0.211 6.21 1987.00 0.207 5.72 1988.00 0.203 5.20 1989.00 0.199 4.67 1990.00 0.195 4.11 1991.00 0.191 3.53 1992.00 0.187 2.92 1993.00 0.182 2.29 1994.00 0.178 1.62 1995.00 0.173 0.92 1996.00 0.168 0.18 1997.00 0.164 359.39 1998.00 0.159 358.56 1999.00 0.154 357.67 2000.00 0.148 356.73 2001.00 0.143 355.71 2002.00 0.138 354.61 2003.00 0.132 353.43 2004.00 0.127 352.14 2005.00 0.121 350.73 2006.00 0.115 349.17 2007.00 0.109 347.45 2008.00 0.103 345.53 2009.00 0.097 343.38 2010.00 0.091 340.93 2011.00 0.085 338.13 2012.00 0.079 334.90 2013.00 0.073 331.14 2014.00 0.067 326.70 2015.00 0.061 321.44 2016.00 0.056 315.16 2017.00 0.052 307.68 2018.00 0.048 298.88 2019.00 0.045 288.78 2020.00 0.044 277.69 2021.00 0.044 266.23 2022.00 0.045 255.11 2023.00 0.047 244.93 2024.00 0.051 235.96 2025.00 0.055 228.21 2026.00 0.059 221.56 2027.00 0.063 215.79 2028.00 0.067 210.73 2029.00 0.071 206.19 2030.00 0.074 202.05 2031.00 0.076 198.18 2032.00 0.077 194.49 2033.00 0.078 190.91 2034.00 0.078 187.37 2035.00 0.078 183.81 2036.00 0.077 180.19 2037.00 0.075 176.45 2038.00 0.074 172.57 2039.00 0.072 168.51 2040.00 0.070 164.23 2041.00 0.068 159.73 2042.00 0.067 154.98 2043.00 0.065 150.00 2044.00 0.064 144.80 2045.00 0.063 139.41 2046.00 0.062 133.88 2047.00 0.062 128.29 2048.00 0.062 122.70 2049.00 0.063 117.19 2050.00 0.064 111.84 2051.00 0.066 106.70 2052.00 0.068 101.83 2053.00 0.070 97.24 2054.00 0.072 92.96 2055.00 0.075 88.99 2056.00 0.078 85.32 2057.00 0.082 81.93 2058.00 0.085 78.80 2059.00 0.088 75.93 2060.00 0.092 73.28 2061.00 0.096 70.83 2062.00 0.100 68.58 2063.00 0.104 66.49 2064.00 0.108 64.55 2065.00 0.112 62.75 2066.00 0.115 61.07 2067.00 0.119 59.50 2068.00 0.123 58.04 2069.00 0.127 56.66 2070.00 0.131 55.37 2071.00 0.135 54.16 2072.00 0.139 53.01 2073.00 0.143 51.93 2074.00 0.147 50.90 2075.00 0.151 49.93 2076.00 0.155 49.00 2077.00 0.158 48.12 2078.00 0.162 47.28 2079.00 0.166 46.47 2080.00 0.169 45.71 2081.00 0.173 44.97 2082.00 0.177 44.26 2083.00 0.180 43.58 2084.00 0.184 42.93 2085.00 0.187 42.30 2086.00 0.190 41.69 2087.00 0.194 41.11 2088.00 0.197 40.54 2089.00 0.200 39.99 2090.00 0.203 39.46 2091.00 0.206 38.94 2092.00 0.209 38.44 2093.00 0.212 37.96 2094.00 0.215 37.49 2095.00 0.218 37.03 2096.00 0.221 36.58 2097.00 0.224 36.14 2098.00 0.227 35.71 2099.00 0.229 35.30 2100.00 0.232 34.89 2101.00 0.234 34.49 2102.00 0.237 34.11 2103.00 0.239 33.73 2104.00 0.242 33.35 2105.00 0.244 32.99 2106.00 0.246 32.63 2107.00 0.249 32.27 2108.00 0.251 31.93 2109.00 0.253 31.59 2110.00 0.255 31.25 2111.00 0.257 30.92 2112.00 0.259 30.60 2113.00 0.261 30.28 2114.00 0.263 29.97 2115.00 0.265 29.65 2116.00 0.266 29.35 2117.00 0.268 29.05 2118.00 0.270 28.75 2119.00 0.271 28.45 2120.00 0.273 28.16 2121.00 0.274 27.87 2122.00 0.276 27.59 2123.00 0.277 27.30 2124.00 0.278 27.02 2125.00 0.280 26.75 2126.00 0.281 26.47 2127.00 0.282 26.20 2128.00 0.283 25.93
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:13:58 |