| WDS: | A1156 | WDS ID/Discoverer |
| P: | 195.220 | Orbital period (years) |
| a: | 0.281 | Semi-major axis (arcseconds) |
| i: | 95.5 | Inclination (degrees) |
| Ω: | 168.3 | Longitude of ascending node (degrees) |
| T: | 2000.000 | Epoch of periastron passage (year) |
| e: | 0.26 | Eccentricity |
| ω: | 156.8 | Longitude of periastron (degrees) |
| Start-Year: | 1927.39 | Year |
| End-Year: | 2122.61 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A1156 |
||
| Position: | 173634.63+072231.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17366+0723 | WDS designation |
| Discoverer Code: | A1156 | Discover designation and components |
| ADS number: | 10659 | Aitken Double Star catalog |
| HD number: | 159857 | HD catalog number |
| Hipparcos number: | 86174 | Hipparcos catalog number |
| V1: | 9.35 | Magnitude of the primary |
| V2: | 8.60 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | 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: | Doc2015b | 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 0.150 341.05 -------------------------- 1927.39 0.338 167.76 1928.39 0.336 167.64 1929.39 0.333 167.52 1930.39 0.331 167.39 1931.39 0.329 167.27 1932.39 0.326 167.15 1933.39 0.323 167.02 1934.39 0.320 166.89 1935.39 0.316 166.75 1936.39 0.313 166.62 1937.39 0.309 166.48 1938.39 0.305 166.33 1939.39 0.301 166.19 1940.39 0.296 166.04 1941.39 0.292 165.88 1942.39 0.287 165.72 1943.39 0.282 165.55 1944.39 0.277 165.38 1945.39 0.271 165.20 1946.39 0.266 165.01 1947.39 0.260 164.82 1948.39 0.254 164.61 1949.39 0.247 164.40 1950.39 0.241 164.17 1951.39 0.234 163.93 1952.39 0.228 163.68 1953.39 0.221 163.41 1954.39 0.213 163.13 1955.39 0.206 162.82 1956.39 0.198 162.49 1957.39 0.190 162.13 1958.39 0.183 161.74 1959.39 0.174 161.32 1960.39 0.166 160.86 1961.39 0.158 160.34 1962.39 0.149 159.77 1963.39 0.140 159.12 1964.39 0.131 158.39 1965.39 0.122 157.55 1966.39 0.113 156.57 1967.39 0.104 155.42 1968.39 0.094 154.04 1969.39 0.085 152.36 1970.39 0.075 150.26 1971.39 0.066 147.55 1972.39 0.057 143.95 1973.39 0.048 138.96 1974.39 0.039 131.68 1975.39 0.031 120.56 1976.39 0.025 103.31 1977.39 0.023 79.30 1978.39 0.025 54.55 1979.39 0.030 36.06 1980.39 0.038 24.07 1981.39 0.046 16.27 1982.39 0.055 10.95 1983.39 0.064 7.15 1984.39 0.074 4.31 1985.39 0.083 2.10 1986.39 0.092 0.34 1987.39 0.101 358.90 1988.39 0.110 357.69 1989.39 0.119 356.66 1990.39 0.127 355.77 1991.39 0.136 354.99 1992.39 0.144 354.30 1993.39 0.151 353.68 1994.39 0.158 353.12 1995.39 0.165 352.60 1996.39 0.172 352.13 1997.39 0.178 351.68 1998.39 0.183 351.27 1999.39 0.188 350.88 2000.39 0.193 350.51 2001.39 0.197 350.16 2002.39 0.201 349.82 2003.39 0.204 349.49 2004.39 0.207 349.17 2005.39 0.209 348.86 2006.39 0.211 348.55 2007.39 0.212 348.25 2008.39 0.212 347.95 2009.39 0.212 347.65 2010.39 0.212 347.35 2011.39 0.211 347.05 2012.39 0.210 346.74 2013.39 0.208 346.44 2014.39 0.206 346.12 2015.39 0.203 345.80 2016.39 0.200 345.47 2017.39 0.197 345.12 2018.39 0.193 344.77 2019.39 0.188 344.40 2020.39 0.184 344.01 2021.39 0.179 343.60 2022.39 0.174 343.17 2023.39 0.168 342.71 2024.39 0.163 342.21 2025.39 0.157 341.68 2026.39 0.150 341.11 2027.39 0.144 340.49 2028.39 0.137 339.81 2029.39 0.130 339.05 2030.39 0.123 338.21 2031.39 0.116 337.28 2032.39 0.109 336.21 2033.39 0.102 335.00 2034.39 0.094 333.59 2035.39 0.087 331.94 2036.39 0.079 329.98 2037.39 0.072 327.62 2038.39 0.064 324.70 2039.39 0.057 321.04 2040.39 0.050 316.33 2041.39 0.044 310.14 2042.39 0.038 301.86 2043.39 0.033 290.77 2044.39 0.029 276.44 2045.39 0.028 259.70 2046.39 0.029 242.96 2047.39 0.033 228.67 2048.39 0.038 217.60 2049.39 0.044 209.35 2050.39 0.050 203.18 2051.39 0.057 198.49 2052.39 0.065 194.85 2053.39 0.072 191.95 2054.39 0.080 189.60 2055.39 0.087 187.66 2056.39 0.095 186.03 2057.39 0.102 184.64 2058.39 0.110 183.44 2059.39 0.118 182.40 2060.39 0.125 181.49 2061.39 0.133 180.67 2062.39 0.140 179.95 2063.39 0.147 179.29 2064.39 0.154 178.70 2065.39 0.162 178.16 2066.39 0.169 177.66 2067.39 0.176 177.21 2068.39 0.182 176.79 2069.39 0.189 176.40 2070.39 0.196 176.03 2071.39 0.202 175.69 2072.39 0.209 175.38 2073.39 0.215 175.07 2074.39 0.221 174.79 2075.39 0.227 174.52 2076.39 0.233 174.27 2077.39 0.239 174.03 2078.39 0.245 173.80 2079.39 0.250 173.58 2080.39 0.256 173.37 2081.39 0.261 173.17 2082.39 0.266 172.97 2083.39 0.271 172.78 2084.39 0.276 172.60 2085.39 0.281 172.43 2086.39 0.285 172.26 2087.39 0.290 172.10 2088.39 0.294 171.94 2089.39 0.298 171.79 2090.39 0.302 171.64 2091.39 0.306 171.49 2092.39 0.309 171.35 2093.39 0.313 171.21 2094.39 0.316 171.07 2095.39 0.319 170.94 2096.39 0.322 170.81 2097.39 0.325 170.68 2098.39 0.328 170.55 2099.39 0.330 170.43 2100.39 0.333 170.31 2101.39 0.335 170.19 2102.39 0.337 170.07 2103.39 0.338 169.95 2104.39 0.340 169.83 2105.39 0.342 169.71 2106.39 0.343 169.60 2107.39 0.344 169.49 2108.39 0.345 169.37 2109.39 0.346 169.26 2110.39 0.346 169.15 2111.39 0.346 169.03 2112.39 0.347 168.92 2113.39 0.347 168.81 2114.39 0.346 168.70 2115.39 0.346 168.58 2116.39 0.346 168.47 2117.39 0.345 168.36 2118.39 0.344 168.25 2119.39 0.343 168.13 2120.39 0.341 168.02 2121.39 0.340 167.90 2122.39 0.338 167.78
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 17:40:41 |