| WDS: | A258 | WDS ID/Discoverer |
| P: | 1353.000 | Orbital period (years) |
| a: | 1.52 | Semi-major axis (arcseconds) |
| i: | 97.0 | Inclination (degrees) |
| Ω: | 247.0 | Longitude of ascending node (degrees) |
| T: | 2007.000 | Epoch of periastron passage (year) |
| e: | 0.67 | Eccentricity |
| ω: | 32.0 | Longitude of periastron (degrees) |
| Start-Year: | 1348.5 | Year |
| End-Year: | 2701.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A258 |
||
| Position: | 185459.91+305245.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18550+3053 | WDS designation |
| Discoverer Code: | A258 | Discover designation and components |
| ADS number: | 11837 | Aitken Double Star catalog |
| HD number: | 175612 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 8.86 | Magnitude of the primary |
| V2: | 9.88 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2007 | 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: | Hrt2013c | 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 0.229 231.87 -------------------------- 1348.50 2.128 62.43 1358.50 2.109 62.30 1368.50 2.090 62.18 1378.50 2.069 62.05 1388.50 2.048 61.92 1398.50 2.025 61.78 1408.50 2.002 61.65 1418.50 1.978 61.51 1428.50 1.952 61.36 1438.50 1.926 61.21 1448.50 1.899 61.06 1458.50 1.871 60.91 1468.50 1.842 60.74 1478.50 1.812 60.58 1488.50 1.781 60.40 1498.50 1.750 60.23 1508.50 1.717 60.04 1518.50 1.683 59.85 1528.50 1.649 59.65 1538.50 1.614 59.44 1548.50 1.577 59.22 1558.50 1.540 58.99 1568.50 1.502 58.75 1578.50 1.463 58.50 1588.50 1.423 58.23 1598.50 1.383 57.95 1608.50 1.341 57.65 1618.50 1.299 57.33 1628.50 1.255 56.99 1638.50 1.211 56.62 1648.50 1.166 56.23 1658.50 1.120 55.80 1668.50 1.073 55.34 1678.50 1.025 54.84 1688.50 0.977 54.28 1698.50 0.928 53.67 1708.50 0.877 52.98 1718.50 0.827 52.22 1728.50 0.775 51.35 1738.50 0.723 50.35 1748.50 0.670 49.21 1758.50 0.616 47.86 1768.50 0.562 46.25 1778.50 0.508 44.30 1788.50 0.453 41.89 1798.50 0.399 38.82 1808.50 0.346 34.79 1818.50 0.294 29.32 1828.50 0.246 21.60 1838.50 0.203 10.37 1848.50 0.171 354.14 1858.50 0.157 333.04 1868.50 0.167 311.34 1878.50 0.195 293.97 1888.50 0.236 281.78 1898.50 0.282 273.38 1908.50 0.331 267.43 1918.50 0.380 263.02 1928.50 0.428 259.60 1938.50 0.472 256.85 1948.50 0.509 254.54 1958.50 0.538 252.52 1968.50 0.555 250.67 1978.50 0.556 248.88 1988.50 0.534 247.02 1998.50 0.488 244.90 2008.50 0.414 242.17 2018.50 0.317 237.97 2028.50 0.206 229.52 2038.50 0.101 201.85 2048.50 0.097 120.52 2058.50 0.202 91.06 2068.50 0.320 82.47 2078.50 0.435 78.47 2088.50 0.545 76.13 2098.50 0.651 74.57 2108.50 0.751 73.43 2118.50 0.846 72.56 2128.50 0.936 71.86 2138.50 1.021 71.27 2148.50 1.102 70.78 2158.50 1.179 70.35 2168.50 1.251 69.98 2178.50 1.320 69.64 2188.50 1.386 69.33 2198.50 1.448 69.06 2208.50 1.507 68.80 2218.50 1.562 68.57 2228.50 1.615 68.35 2238.50 1.666 68.14 2248.50 1.713 67.94 2258.50 1.759 67.76 2268.50 1.801 67.58 2278.50 1.842 67.42 2288.50 1.880 67.26 2298.50 1.916 67.10 2308.50 1.951 66.95 2318.50 1.983 66.81 2328.50 2.013 66.67 2338.50 2.041 66.53 2348.50 2.068 66.40 2358.50 2.093 66.27 2368.50 2.116 66.15 2378.50 2.137 66.03 2388.50 2.157 65.91 2398.50 2.176 65.79 2408.50 2.192 65.67 2418.50 2.208 65.56 2428.50 2.222 65.44 2438.50 2.234 65.33 2448.50 2.245 65.22 2458.50 2.255 65.11 2468.50 2.263 65.00 2478.50 2.270 64.89 2488.50 2.276 64.78 2498.50 2.281 64.68 2508.50 2.284 64.57 2518.50 2.286 64.46 2528.50 2.287 64.36 2538.50 2.287 64.25 2548.50 2.285 64.15 2558.50 2.283 64.04 2568.50 2.279 63.93 2578.50 2.274 63.82 2588.50 2.268 63.72 2598.50 2.261 63.61 2608.50 2.253 63.50 2618.50 2.244 63.39 2628.50 2.234 63.28 2638.50 2.222 63.17 2648.50 2.210 63.05 2658.50 2.197 62.94 2668.50 2.182 62.82 2678.50 2.167 62.70 2688.50 2.151 62.59 2698.50 2.133 62.46
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:57:21 |