| WDS: | A2175 | WDS ID/Discoverer |
| P: | 179.600 | Orbital period (years) |
| a: | 0.253 | Semi-major axis (arcseconds) |
| i: | 65.2 | Inclination (degrees) |
| Ω: | 180.4 | Longitude of ascending node (degrees) |
| T: | 1932.600 | Epoch of periastron passage (year) |
| e: | 0.377 | Eccentricity |
| ω: | 246.4 | Longitude of periastron (degrees) |
| Start-Year: | 1935.2 | Year |
| End-Year: | 2114.8 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A2175 |
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| Position: | 152812.94+025121.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 15282+0251 | WDS designation |
| Discoverer Code: | A2175 | Discover designation and components |
| ADS number: | 9654 | Aitken Double Star catalog |
| HD number: | 137844 | HD catalog number |
| Hipparcos number: | 75724 | Hipparcos catalog number |
| V1: | 8.78 | Magnitude of the primary |
| V2: | 9.09 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2021 | Date of last observation |
| Orbit grade: | 3 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Tok2022g | 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 0.180 230.10 -------------------------- 1935.20 0.072 65.10 1936.20 0.069 75.16 1937.20 0.068 85.92 1938.20 0.068 96.75 1939.20 0.071 107.04 1940.20 0.076 116.31 1941.20 0.082 124.37 1942.20 0.089 131.24 1943.20 0.097 137.05 1944.20 0.105 141.97 1945.20 0.113 146.17 1946.20 0.122 149.77 1947.20 0.131 152.89 1948.20 0.139 155.63 1949.20 0.148 158.05 1950.20 0.156 160.21 1951.20 0.164 162.16 1952.20 0.172 163.92 1953.20 0.180 165.54 1954.20 0.187 167.02 1955.20 0.194 168.40 1956.20 0.200 169.68 1957.20 0.207 170.89 1958.20 0.213 172.02 1959.20 0.219 173.09 1960.20 0.224 174.10 1961.20 0.229 175.07 1962.20 0.234 176.00 1963.20 0.239 176.89 1964.20 0.243 177.75 1965.20 0.247 178.58 1966.20 0.251 179.38 1967.20 0.255 180.16 1968.20 0.258 180.92 1969.20 0.261 181.66 1970.20 0.264 182.38 1971.20 0.266 183.10 1972.20 0.268 183.79 1973.20 0.270 184.48 1974.20 0.272 185.16 1975.20 0.274 185.83 1976.20 0.275 186.49 1977.20 0.276 187.14 1978.20 0.277 187.79 1979.20 0.278 188.44 1980.20 0.279 189.08 1981.20 0.279 189.72 1982.20 0.279 190.36 1983.20 0.280 191.00 1984.20 0.279 191.64 1985.20 0.279 192.27 1986.20 0.279 192.92 1987.20 0.278 193.56 1988.20 0.277 194.20 1989.20 0.277 194.85 1990.20 0.276 195.51 1991.20 0.274 196.17 1992.20 0.273 196.83 1993.20 0.272 197.50 1994.20 0.270 198.18 1995.20 0.268 198.87 1996.20 0.267 199.57 1997.20 0.265 200.27 1998.20 0.263 200.99 1999.20 0.261 201.72 2000.20 0.259 202.45 2001.20 0.256 203.21 2002.20 0.254 203.97 2003.20 0.251 204.75 2004.20 0.249 205.55 2005.20 0.246 206.36 2006.20 0.244 207.19 2007.20 0.241 208.04 2008.20 0.238 208.91 2009.20 0.235 209.80 2010.20 0.232 210.72 2011.20 0.229 211.66 2012.20 0.226 212.62 2013.20 0.223 213.61 2014.20 0.220 214.62 2015.20 0.217 215.67 2016.20 0.213 216.75 2017.20 0.210 217.86 2018.20 0.207 219.00 2019.20 0.204 220.18 2020.20 0.201 221.40 2021.20 0.197 222.67 2022.20 0.194 223.97 2023.20 0.191 225.31 2024.20 0.188 226.71 2025.20 0.184 228.15 2026.20 0.181 229.64 2027.20 0.178 231.19 2028.20 0.175 232.79 2029.20 0.172 234.44 2030.20 0.169 236.16 2031.20 0.166 237.93 2032.20 0.163 239.77 2033.20 0.161 241.66 2034.20 0.158 243.62 2035.20 0.156 245.65 2036.20 0.153 247.74 2037.20 0.151 249.89 2038.20 0.149 252.10 2039.20 0.147 254.37 2040.20 0.145 256.70 2041.20 0.144 259.08 2042.20 0.142 261.52 2043.20 0.141 263.99 2044.20 0.140 266.51 2045.20 0.139 269.06 2046.20 0.139 271.64 2047.20 0.138 274.23 2048.20 0.138 276.84 2049.20 0.138 279.45 2050.20 0.138 282.05 2051.20 0.139 284.64 2052.20 0.140 287.22 2053.20 0.140 289.76 2054.20 0.141 292.28 2055.20 0.143 294.75 2056.20 0.144 297.18 2057.20 0.145 299.56 2058.20 0.147 301.89 2059.20 0.149 304.17 2060.20 0.151 306.39 2061.20 0.153 308.55 2062.20 0.155 310.65 2063.20 0.157 312.70 2064.20 0.160 314.68 2065.20 0.162 316.61 2066.20 0.164 318.48 2067.20 0.167 320.30 2068.20 0.169 322.06 2069.20 0.172 323.78 2070.20 0.174 325.44 2071.20 0.177 327.06 2072.20 0.179 328.63 2073.20 0.182 330.16 2074.20 0.184 331.65 2075.20 0.186 333.10 2076.20 0.188 334.52 2077.20 0.190 335.91 2078.20 0.192 337.27 2079.20 0.194 338.61 2080.20 0.196 339.91 2081.20 0.197 341.20 2082.20 0.199 342.47 2083.20 0.200 343.73 2084.20 0.201 344.97 2085.20 0.202 346.20 2086.20 0.202 347.42 2087.20 0.202 348.64 2088.20 0.202 349.86 2089.20 0.202 351.08 2090.20 0.201 352.30 2091.20 0.200 353.54 2092.20 0.199 354.79 2093.20 0.197 356.07 2094.20 0.195 357.36 2095.20 0.192 358.69 2096.20 0.189 0.06 2097.20 0.186 1.48 2098.20 0.182 2.95 2099.20 0.178 4.49 2100.20 0.173 6.11 2101.20 0.168 7.83 2102.20 0.162 9.66 2103.20 0.156 11.64 2104.20 0.149 13.78 2105.20 0.142 16.14 2106.20 0.135 18.74 2107.20 0.127 21.66 2108.20 0.119 24.96 2109.20 0.111 28.74 2110.20 0.103 33.12 2111.20 0.095 38.23 2112.20 0.087 44.23 2113.20 0.081 51.31 2114.20 0.075 59.56
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:15:51 |