| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:31:14 |
| 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: | 1936.0 | Year |
| End-Year: | 2114.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| 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' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.185 227.9 ------------------------- 1936.0 0.069 73.1 1937.0 0.068 83.7 1938.0 0.068 94.6 1939.0 0.070 105.1 1940.0 0.075 114.5 1941.0 0.081 122.9 1942.0 0.087 130.0 1943.0 0.095 136.0 1944.0 0.103 141.1 1945.0 0.112 145.4 1946.0 0.120 149.1 1947.0 0.129 152.3 1948.0 0.138 155.1 1949.0 0.146 157.6 1950.0 0.154 159.8 1951.0 0.163 161.8 1952.0 0.170 163.6 1953.0 0.178 165.2 1954.0 0.185 166.7 1955.0 0.192 168.1 1956.0 0.199 169.4 1957.0 0.206 170.7 1958.0 0.212 171.8 1959.0 0.218 172.9 1960.0 0.223 173.9 1961.0 0.228 174.9 1962.0 0.233 175.8 1963.0 0.238 176.7 1964.0 0.242 177.6 1965.0 0.246 178.4 1966.0 0.250 179.2 1967.0 0.254 180.0 1968.0 0.257 180.8 1969.0 0.260 181.5 1970.0 0.263 182.2 1971.0 0.266 183.0 1972.0 0.268 183.7 1973.0 0.270 184.3 1974.0 0.272 185.0 1975.0 0.274 185.7 1976.0 0.275 186.4 1977.0 0.276 187.0 1978.0 0.277 187.7 1979.0 0.278 188.3 1980.0 0.279 189.0 1981.0 0.279 189.6 1982.0 0.279 190.2 1983.0 0.280 190.9 1984.0 0.279 191.5 1985.0 0.279 192.1 1986.0 0.279 192.8 1987.0 0.278 193.4 1988.0 0.278 194.1 1989.0 0.277 194.7 1990.0 0.276 195.4 1991.0 0.275 196.0 1992.0 0.273 196.7 1993.0 0.272 197.4 1994.0 0.270 198.0 1995.0 0.269 198.7 1996.0 0.267 199.4 1997.0 0.265 200.1 1998.0 0.263 200.8 1999.0 0.261 201.6 2000.0 0.259 202.3 2001.0 0.257 203.1 2002.0 0.254 203.8 2003.0 0.252 204.6 2004.0 0.249 205.4 2005.0 0.247 206.2 2006.0 0.244 207.0 2007.0 0.241 207.9 2008.0 0.239 208.7 2009.0 0.236 209.6 2010.0 0.233 210.5 2011.0 0.230 211.5 2012.0 0.227 212.4 2013.0 0.224 213.4 2014.0 0.220 214.4 2015.0 0.217 215.5 2016.0 0.214 216.5 2017.0 0.211 217.6 2018.0 0.208 218.8 2019.0 0.204 219.9 2020.0 0.201 221.2 2021.0 0.198 222.4 2022.0 0.195 223.7 2023.0 0.191 225.0 2024.0 0.188 226.4 2025.0 0.185 227.9 2026.0 0.182 229.3 2027.0 0.179 230.9 2028.0 0.176 232.5 2029.0 0.173 234.1 2030.0 0.170 235.8 2031.0 0.167 237.6 2032.0 0.164 239.4 2033.0 0.161 241.3 2034.0 0.159 243.2 2035.0 0.156 245.2 2036.0 0.154 247.3 2037.0 0.152 249.5 2038.0 0.149 251.7 2039.0 0.148 253.9 2040.0 0.146 256.2 2041.0 0.144 258.6 2042.0 0.143 261.0 2043.0 0.141 263.5 2044.0 0.140 266.0 2045.0 0.140 268.5 2046.0 0.139 271.1 2047.0 0.138 273.7 2048.0 0.138 276.3 2049.0 0.138 278.9 2050.0 0.138 281.5 2051.0 0.139 284.1 2052.0 0.139 286.7 2053.0 0.140 289.3 2054.0 0.141 291.8 2055.0 0.142 294.3 2056.0 0.144 296.7 2057.0 0.145 299.1 2058.0 0.147 301.4 2059.0 0.149 303.7 2060.0 0.150 306.0 2061.0 0.152 308.1 2062.0 0.155 310.2 2063.0 0.157 312.3 2064.0 0.159 314.3 2065.0 0.162 316.2 2066.0 0.164 318.1 2067.0 0.166 319.9 2068.0 0.169 321.7 2069.0 0.171 323.4 2070.0 0.174 325.1 2071.0 0.176 326.7 2072.0 0.179 328.3 2073.0 0.181 329.9 2074.0 0.184 331.4 2075.0 0.186 332.8 2076.0 0.188 334.2 2077.0 0.190 335.6 2078.0 0.192 337.0 2079.0 0.194 338.3 2080.0 0.196 339.7 2081.0 0.197 340.9 2082.0 0.199 342.2 2083.0 0.200 343.5 2084.0 0.201 344.7 2085.0 0.201 346.0 2086.0 0.202 347.2 2087.0 0.202 348.4 2088.0 0.202 349.6 2089.0 0.202 350.8 2090.0 0.201 352.1 2091.0 0.200 353.3 2092.0 0.199 354.5 2093.0 0.197 355.8 2094.0 0.195 357.1 2095.0 0.193 358.4 2096.0 0.190 359.8 2097.0 0.187 1.2 2098.0 0.183 2.6 2099.0 0.179 4.2 2100.0 0.174 5.8 2101.0 0.169 7.5 2102.0 0.163 9.3 2103.0 0.157 11.2 2104.0 0.150 13.3 2105.0 0.143 15.6 2106.0 0.136 18.2 2107.0 0.128 21.0 2108.0 0.121 24.3 2109.0 0.112 27.9 2110.0 0.104 32.2 2111.0 0.096 37.1 2112.0 0.089 43.0 2113.0 0.082 49.8