| WDS: | HO197AB | WDS ID/Discoverer |
| P: | 171.900 | Orbital period (years) |
| a: | 0.386 | Semi-major axis (arcseconds) |
| i: | 109.2 | Inclination (degrees) |
| Ω: | 123.2 | Longitude of ascending node (degrees) |
| T: | 2012.940 | Epoch of periastron passage (year) |
| e: | 0.355 | Eccentricity |
| ω: | 244.1 | Longitude of periastron (degrees) |
| Start-Year: | 1939.05 | Year |
| End-Year: | 2110.95 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for HO197AB |
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| Position: | 231125.83+381311.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 23114+3813 | WDS designation |
| Discoverer Code: | HO197AB | Discover designation and components |
| ADS number: | 16576 | Aitken Double Star catalog |
| HD number: | 218917 | HD catalog number |
| Hipparcos number: | 114504 | Hipparcos catalog number |
| V1: | 8.47 | Magnitude of the primary |
| V2: | 9.16 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2023 | 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: | Doc2025a | 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 0.171 150.69 -------------------------- 1939.05 0.202 68.10 1940.05 0.196 65.67 1941.05 0.191 63.12 1942.05 0.187 60.43 1943.05 0.182 57.61 1944.05 0.178 54.65 1945.05 0.175 51.57 1946.05 0.171 48.36 1947.05 0.169 45.03 1948.05 0.166 41.61 1949.05 0.165 38.11 1950.05 0.163 34.53 1951.05 0.163 30.92 1952.05 0.162 27.29 1953.05 0.163 23.66 1954.05 0.164 20.06 1955.05 0.165 16.52 1956.05 0.167 13.04 1957.05 0.170 9.66 1958.05 0.173 6.39 1959.05 0.176 3.23 1960.05 0.180 0.19 1961.05 0.184 357.28 1962.05 0.188 354.51 1963.05 0.193 351.86 1964.05 0.198 349.34 1965.05 0.203 346.95 1966.05 0.208 344.67 1967.05 0.213 342.51 1968.05 0.219 340.46 1969.05 0.224 338.51 1970.05 0.230 336.65 1971.05 0.236 334.88 1972.05 0.241 333.19 1973.05 0.247 331.58 1974.05 0.252 330.04 1975.05 0.258 328.56 1976.05 0.263 327.15 1977.05 0.268 325.79 1978.05 0.273 324.47 1979.05 0.278 323.21 1980.05 0.282 321.98 1981.05 0.286 320.79 1982.05 0.290 319.64 1983.05 0.294 318.51 1984.05 0.297 317.42 1985.05 0.300 316.34 1986.05 0.303 315.28 1987.05 0.305 314.24 1988.05 0.306 313.21 1989.05 0.307 312.20 1990.05 0.308 311.18 1991.05 0.308 310.17 1992.05 0.308 309.16 1993.05 0.306 308.14 1994.05 0.305 307.11 1995.05 0.302 306.07 1996.05 0.299 305.01 1997.05 0.295 303.92 1998.05 0.290 302.80 1999.05 0.285 301.64 2000.05 0.279 300.44 2001.05 0.271 299.17 2002.05 0.263 297.83 2003.05 0.255 296.40 2004.05 0.245 294.86 2005.05 0.234 293.19 2006.05 0.223 291.35 2007.05 0.211 289.32 2008.05 0.198 287.03 2009.05 0.185 284.42 2010.05 0.172 281.40 2011.05 0.158 277.86 2012.05 0.144 273.62 2013.05 0.130 268.47 2014.05 0.117 262.14 2015.05 0.105 254.28 2016.05 0.095 244.59 2017.05 0.088 232.98 2018.05 0.084 219.89 2019.05 0.085 206.38 2020.05 0.090 193.75 2021.05 0.098 182.84 2022.05 0.109 173.88 2023.05 0.122 166.65 2024.05 0.136 160.84 2025.05 0.150 156.11 2026.05 0.165 152.22 2027.05 0.179 148.97 2028.05 0.194 146.21 2029.05 0.208 143.83 2030.05 0.222 141.76 2031.05 0.236 139.94 2032.05 0.249 138.31 2033.05 0.262 136.84 2034.05 0.275 135.51 2035.05 0.287 134.29 2036.05 0.298 133.17 2037.05 0.309 132.13 2038.05 0.319 131.15 2039.05 0.329 130.24 2040.05 0.338 129.38 2041.05 0.347 128.56 2042.05 0.355 127.79 2043.05 0.363 127.04 2044.05 0.371 126.33 2045.05 0.377 125.64 2046.05 0.384 124.98 2047.05 0.390 124.34 2048.05 0.395 123.72 2049.05 0.400 123.11 2050.05 0.405 122.52 2051.05 0.409 121.94 2052.05 0.412 121.37 2053.05 0.416 120.81 2054.05 0.419 120.26 2055.05 0.421 119.71 2056.05 0.423 119.17 2057.05 0.425 118.64 2058.05 0.426 118.11 2059.05 0.427 117.58 2060.05 0.428 117.06 2061.05 0.428 116.54 2062.05 0.429 116.01 2063.05 0.428 115.49 2064.05 0.428 114.97 2065.05 0.427 114.44 2066.05 0.426 113.92 2067.05 0.424 113.38 2068.05 0.423 112.85 2069.05 0.421 112.31 2070.05 0.418 111.76 2071.05 0.416 111.21 2072.05 0.413 110.66 2073.05 0.410 110.09 2074.05 0.407 109.52 2075.05 0.404 108.93 2076.05 0.400 108.34 2077.05 0.396 107.73 2078.05 0.392 107.12 2079.05 0.388 106.49 2080.05 0.384 105.84 2081.05 0.379 105.18 2082.05 0.374 104.51 2083.05 0.370 103.82 2084.05 0.364 103.10 2085.05 0.359 102.37 2086.05 0.354 101.62 2087.05 0.348 100.84 2088.05 0.343 100.04 2089.05 0.337 99.21 2090.05 0.331 98.35 2091.05 0.325 97.46 2092.05 0.319 96.53 2093.05 0.313 95.57 2094.05 0.307 94.57 2095.05 0.301 93.53 2096.05 0.294 92.45 2097.05 0.288 91.31 2098.05 0.281 90.13 2099.05 0.275 88.89 2100.05 0.268 87.59 2101.05 0.262 86.22 2102.05 0.255 84.79 2103.05 0.249 83.28 2104.05 0.243 81.70 2105.05 0.236 80.02 2106.05 0.230 78.26 2107.05 0.224 76.40 2108.05 0.218 74.43 2109.05 0.212 72.36 2110.05 0.207 70.17
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:48:48 |