| WDS: | A7 | WDS ID/Discoverer |
| P: | 204.320 | Orbital period (years) |
| a: | 0.447 | Semi-major axis (arcseconds) |
| i: | 105.1 | Inclination (degrees) |
| Ω: | 93.3 | Longitude of ascending node (degrees) |
| T: | 2050.540 | Epoch of periastron passage (year) |
| e: | 0.656 | Eccentricity |
| ω: | 59.8 | Longitude of periastron (degrees) |
| Start-Year: | 1922.84 | Year |
| End-Year: | 2127.16 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A7 |
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| Position: | 112943.17-061831.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11297-0619 | WDS designation |
| Discoverer Code: | A7 | Discover designation and components |
| ADS number: | 8182 | Aitken Double Star catalog |
| HD number: | 99917 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.7 | Magnitude of the primary |
| V2: | 9.7 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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: | Tok2015c | 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 0.202 119.95 -------------------------- 1922.84 0.500 257.68 1923.84 0.498 257.40 1924.84 0.495 257.12 1925.84 0.493 256.83 1926.84 0.490 256.55 1927.84 0.487 256.26 1928.84 0.484 255.96 1929.84 0.481 255.67 1930.84 0.478 255.36 1931.84 0.474 255.06 1932.84 0.471 254.75 1933.84 0.467 254.43 1934.84 0.464 254.11 1935.84 0.460 253.79 1936.84 0.456 253.46 1937.84 0.453 253.13 1938.84 0.449 252.79 1939.84 0.445 252.44 1940.84 0.441 252.09 1941.84 0.437 251.73 1942.84 0.432 251.36 1943.84 0.428 250.99 1944.84 0.424 250.60 1945.84 0.419 250.21 1946.84 0.415 249.82 1947.84 0.410 249.41 1948.84 0.406 248.99 1949.84 0.401 248.57 1950.84 0.396 248.13 1951.84 0.392 247.69 1952.84 0.387 247.23 1953.84 0.382 246.76 1954.84 0.377 246.28 1955.84 0.372 245.79 1956.84 0.367 245.28 1957.84 0.362 244.76 1958.84 0.357 244.22 1959.84 0.351 243.67 1960.84 0.346 243.10 1961.84 0.341 242.52 1962.84 0.336 241.91 1963.84 0.330 241.29 1964.84 0.325 240.64 1965.84 0.319 239.97 1966.84 0.314 239.28 1967.84 0.309 238.57 1968.84 0.303 237.83 1969.84 0.298 237.06 1970.84 0.292 236.27 1971.84 0.287 235.44 1972.84 0.281 234.58 1973.84 0.276 233.69 1974.84 0.270 232.76 1975.84 0.265 231.79 1976.84 0.259 230.78 1977.84 0.254 229.72 1978.84 0.248 228.62 1979.84 0.243 227.47 1980.84 0.237 226.27 1981.84 0.232 225.02 1982.84 0.227 223.70 1983.84 0.222 222.32 1984.84 0.216 220.88 1985.84 0.211 219.36 1986.84 0.206 217.78 1987.84 0.202 216.11 1988.84 0.197 214.37 1989.84 0.192 212.54 1990.84 0.188 210.62 1991.84 0.183 208.61 1992.84 0.179 206.51 1993.84 0.175 204.31 1994.84 0.172 202.01 1995.84 0.168 199.61 1996.84 0.165 197.12 1997.84 0.162 194.53 1998.84 0.159 191.85 1999.84 0.157 189.08 2000.84 0.155 186.24 2001.84 0.153 183.32 2002.84 0.152 180.34 2003.84 0.151 177.32 2004.84 0.150 174.25 2005.84 0.150 171.17 2006.84 0.150 168.09 2007.84 0.150 165.01 2008.84 0.151 161.95 2009.84 0.152 158.94 2010.84 0.153 155.97 2011.84 0.155 153.06 2012.84 0.157 150.23 2013.84 0.160 147.47 2014.84 0.162 144.80 2015.84 0.165 142.21 2016.84 0.168 139.71 2017.84 0.171 137.30 2018.84 0.175 134.99 2019.84 0.178 132.76 2020.84 0.182 130.62 2021.84 0.185 128.56 2022.84 0.189 126.58 2023.84 0.193 124.68 2024.84 0.196 122.85 2025.84 0.200 121.08 2026.84 0.203 119.38 2027.84 0.207 117.74 2028.84 0.210 116.15 2029.84 0.213 114.60 2030.84 0.216 113.10 2031.84 0.219 111.64 2032.84 0.221 110.21 2033.84 0.223 108.80 2034.84 0.224 107.41 2035.84 0.225 106.03 2036.84 0.225 104.66 2037.84 0.224 103.29 2038.84 0.223 101.90 2039.84 0.220 100.49 2040.84 0.216 99.04 2041.84 0.211 97.53 2042.84 0.205 95.93 2043.84 0.196 94.21 2044.84 0.186 92.31 2045.84 0.173 90.17 2046.84 0.158 87.66 2047.84 0.141 84.57 2048.84 0.122 80.55 2049.84 0.100 74.89 2050.84 0.078 66.05 2051.84 0.057 50.50 2052.84 0.044 21.91 2053.84 0.045 344.61 2054.84 0.061 318.95 2055.84 0.083 305.22 2056.84 0.106 297.35 2057.84 0.130 292.33 2058.84 0.152 288.82 2059.84 0.174 286.21 2060.84 0.195 284.17 2061.84 0.215 282.52 2062.84 0.234 281.14 2063.84 0.251 279.96 2064.84 0.268 278.93 2065.84 0.284 278.03 2066.84 0.299 277.21 2067.84 0.314 276.48 2068.84 0.327 275.80 2069.84 0.340 275.18 2070.84 0.352 274.60 2071.84 0.364 274.06 2072.84 0.375 273.55 2073.84 0.385 273.07 2074.84 0.395 272.62 2075.84 0.404 272.18 2076.84 0.413 271.77 2077.84 0.421 271.37 2078.84 0.429 270.99 2079.84 0.436 270.62 2080.84 0.443 270.26 2081.84 0.450 269.91 2082.84 0.456 269.58 2083.84 0.462 269.25 2084.84 0.468 268.93 2085.84 0.473 268.62 2086.84 0.478 268.31 2087.84 0.483 268.01 2088.84 0.487 267.72 2089.84 0.491 267.43 2090.84 0.495 267.14 2091.84 0.498 266.86 2092.84 0.502 266.58 2093.84 0.505 266.31 2094.84 0.507 266.04 2095.84 0.510 265.77 2096.84 0.512 265.51 2097.84 0.514 265.24 2098.84 0.516 264.98 2099.84 0.518 264.73 2100.84 0.519 264.47 2101.84 0.521 264.21 2102.84 0.522 263.96 2103.84 0.523 263.70 2104.84 0.523 263.45 2105.84 0.524 263.20 2106.84 0.524 262.95 2107.84 0.524 262.69 2108.84 0.524 262.44 2109.84 0.524 262.19 2110.84 0.524 261.94 2111.84 0.524 261.69 2112.84 0.523 261.43 2113.84 0.522 261.18 2114.84 0.521 260.93 2115.84 0.520 260.67 2116.84 0.519 260.41 2117.84 0.518 260.16 2118.84 0.517 259.90 2119.84 0.515 259.64 2120.84 0.513 259.38 2121.84 0.512 259.11 2122.84 0.510 258.85 2123.84 0.508 258.58 2124.84 0.506 258.31 2125.84 0.503 258.04 2126.84 0.501 257.77
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:39:01 |