| WDS: | BU281AB | WDS ID/Discoverer |
| P: | 1117.000 | Orbital period (years) |
| a: | 3.14 | Semi-major axis (arcseconds) |
| i: | 108.5 | Inclination (degrees) |
| Ω: | 149.9 | Longitude of ascending node (degrees) |
| T: | 2077.500 | Epoch of periastron passage (year) |
| e: | 0.639 | Eccentricity |
| ω: | 55.7 | Longitude of periastron (degrees) |
| Start-Year: | 1466.5 | Year |
| End-Year: | 2583.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU281AB |
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| Position: | 000247.14+020749.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00028+0208 | WDS designation |
| Discoverer Code: | BU281AB | Discover designation and components |
| ADS number: | 9 | Aitken Double Star catalog |
| HD number: | 225028 | HD catalog number |
| Hipparcos number: | 223 | Hipparcos catalog number |
| V1: | 7.40 | Magnitude of the primary |
| V2: | 9.36 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Lin2015a | 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 1.517 156.42 -------------------------- 1466.50 3.466 308.62 1476.50 3.419 307.96 1486.50 3.370 307.29 1496.50 3.320 306.60 1506.50 3.267 305.88 1516.50 3.212 305.14 1526.50 3.156 304.38 1536.50 3.098 303.59 1546.50 3.039 302.76 1556.50 2.978 301.90 1566.50 2.915 301.01 1576.50 2.851 300.08 1586.50 2.786 299.10 1596.50 2.719 298.08 1606.50 2.652 297.00 1616.50 2.583 295.87 1626.50 2.513 294.68 1636.50 2.443 293.41 1646.50 2.372 292.07 1656.50 2.300 290.65 1666.50 2.228 289.14 1676.50 2.156 287.53 1686.50 2.084 285.80 1696.50 2.012 283.95 1706.50 1.941 281.96 1716.50 1.870 279.83 1726.50 1.800 277.52 1736.50 1.731 275.03 1746.50 1.665 272.34 1756.50 1.600 269.43 1766.50 1.538 266.27 1776.50 1.480 262.87 1786.50 1.425 259.19 1796.50 1.375 255.22 1806.50 1.330 250.98 1816.50 1.291 246.46 1826.50 1.259 241.68 1836.50 1.233 236.68 1846.50 1.216 231.50 1856.50 1.206 226.21 1866.50 1.205 220.87 1876.50 1.212 215.55 1886.50 1.226 210.32 1896.50 1.247 205.24 1906.50 1.274 200.35 1916.50 1.306 195.69 1926.50 1.342 191.26 1936.50 1.380 187.07 1946.50 1.420 183.11 1956.50 1.459 179.37 1966.50 1.496 175.82 1976.50 1.528 172.43 1986.50 1.554 169.17 1996.50 1.570 165.99 2006.50 1.572 162.86 2016.50 1.556 159.69 2026.50 1.517 156.42 2036.50 1.446 152.90 2046.50 1.336 148.90 2056.50 1.180 144.02 2066.50 0.974 137.32 2076.50 0.730 126.46 2086.50 0.490 104.50 2096.50 0.386 59.43 2106.50 0.534 18.78 2116.50 0.793 0.26 2126.50 1.068 351.12 2136.50 1.332 345.68 2146.50 1.579 342.00 2156.50 1.806 339.29 2166.50 2.015 337.16 2176.50 2.207 335.42 2186.50 2.382 333.94 2196.50 2.542 332.66 2206.50 2.689 331.53 2216.50 2.823 330.51 2226.50 2.946 329.58 2236.50 3.058 328.72 2246.50 3.161 327.91 2256.50 3.254 327.16 2266.50 3.339 326.45 2276.50 3.416 325.77 2286.50 3.486 325.12 2296.50 3.548 324.49 2306.50 3.605 323.88 2316.50 3.655 323.29 2326.50 3.699 322.72 2336.50 3.737 322.16 2346.50 3.771 321.61 2356.50 3.799 321.07 2366.50 3.823 320.53 2376.50 3.842 320.01 2386.50 3.857 319.48 2396.50 3.867 318.96 2406.50 3.874 318.45 2416.50 3.877 317.93 2426.50 3.876 317.41 2436.50 3.871 316.90 2446.50 3.864 316.38 2456.50 3.852 315.86 2466.50 3.838 315.33 2476.50 3.821 314.80 2486.50 3.800 314.27 2496.50 3.777 313.73 2506.50 3.751 313.18 2516.50 3.722 312.63 2526.50 3.691 312.06 2536.50 3.657 311.49 2546.50 3.620 310.90 2556.50 3.582 310.30 2566.50 3.541 309.69 2576.50 3.498 309.07
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:34:31 |