| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:56:01 |
| WDS: | BU218 | WDS ID/Discoverer |
| P: | 1449.281 | Orbital period (years) |
| a: | 2.69076 | Semi-major axis (arcseconds) |
| i: | 86.131 | Inclination (degrees) |
| Ω: | 116.563 | Longitude of ascending node (degrees) |
| T: | 1785.926 | Epoch of periastron passage (year) |
| e: | 0.78317 | Eccentricity |
| ω: | 295.406 | Longitude of periastron (degrees) |
| Start-Year: | 1301.0 | Year |
| End-Year: | 2749.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 100722.22-194231.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 10074-1943 | WDS designation |
| Discoverer Code: | BU218 | Discover designation and components |
| ADS number: | 7647 | Aitken Double Star catalog |
| HD number: | 87840 | HD catalog number |
| Hipparcos number: | 49587 | Hipparcos catalog number |
| V1: | 8.16 | Magnitude of the primary |
| V2: | 8.21 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 1998 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.373 151.3 ------------------------- 1301.0 2.719 291.6 1311.0 2.734 291.7 1321.0 2.748 291.8 1331.0 2.760 291.9 1341.0 2.772 292.0 1351.0 2.782 292.1 1361.0 2.790 292.2 1371.0 2.798 292.3 1381.0 2.803 292.4 1391.0 2.808 292.5 1401.0 2.811 292.5 1411.0 2.812 292.6 1421.0 2.812 292.7 1431.0 2.810 292.8 1441.0 2.807 292.9 1451.0 2.801 293.0 1461.0 2.794 293.1 1471.0 2.785 293.2 1481.0 2.773 293.3 1491.0 2.760 293.4 1501.0 2.744 293.5 1511.0 2.726 293.6 1521.0 2.706 293.7 1531.0 2.683 293.8 1541.0 2.657 293.9 1551.0 2.628 294.0 1561.0 2.596 294.1 1571.0 2.561 294.3 1581.0 2.522 294.4 1591.0 2.480 294.5 1601.0 2.433 294.6 1611.0 2.382 294.8 1621.0 2.326 294.9 1631.0 2.265 295.0 1641.0 2.198 295.2 1651.0 2.125 295.3 1661.0 2.045 295.5 1671.0 1.957 295.7 1681.0 1.860 295.9 1691.0 1.752 296.1 1701.0 1.634 296.4 1711.0 1.501 296.7 1721.0 1.352 297.1 1731.0 1.184 297.6 1741.0 0.992 298.2 1751.0 0.771 299.2 1761.0 0.515 301.1 1771.0 0.225 307.5 1781.0 0.105 94.4 1791.0 0.398 112.3 1801.0 0.631 115.2 1811.0 0.791 116.7 1821.0 0.892 117.7 1831.0 0.953 118.6 1841.0 0.986 119.4 1851.0 0.999 120.2 1861.0 0.998 120.9 1871.0 0.986 121.7 1881.0 0.966 122.5 1891.0 0.940 123.3 1901.0 0.909 124.2 1911.0 0.874 125.2 1921.0 0.835 126.2 1931.0 0.795 127.3 1941.0 0.752 128.6 1951.0 0.708 130.0 1961.0 0.663 131.6 1971.0 0.617 133.5 1981.0 0.570 135.6 1991.0 0.524 138.1 2001.0 0.478 141.1 2011.0 0.433 144.8 2021.0 0.390 149.3 2031.0 0.349 154.8 2041.0 0.312 161.8 2051.0 0.280 170.4 2061.0 0.256 181.0 2071.0 0.242 193.3 2081.0 0.240 206.4 2091.0 0.250 219.1 2101.0 0.271 230.3 2111.0 0.300 239.6 2121.0 0.336 247.1 2131.0 0.376 253.1 2141.0 0.419 257.9 2151.0 0.465 261.7 2161.0 0.511 264.9 2171.0 0.559 267.6 2181.0 0.607 269.8 2191.0 0.656 271.7 2201.0 0.706 273.3 2211.0 0.755 274.7 2221.0 0.804 276.0 2231.0 0.853 277.1 2241.0 0.903 278.1 2251.0 0.952 278.9 2261.0 1.000 279.7 2271.0 1.049 280.4 2281.0 1.097 281.1 2291.0 1.145 281.7 2301.0 1.193 282.3 2311.0 1.240 282.8 2321.0 1.287 283.2 2331.0 1.333 283.7 2341.0 1.379 284.1 2351.0 1.425 284.5 2361.0 1.470 284.8 2371.0 1.514 285.2 2381.0 1.558 285.5 2391.0 1.602 285.8 2401.0 1.645 286.1 2411.0 1.687 286.3 2421.0 1.729 286.6 2431.0 1.771 286.9 2441.0 1.812 287.1 2451.0 1.852 287.3 2461.0 1.892 287.5 2471.0 1.931 287.7 2481.0 1.969 287.9 2491.0 2.007 288.1 2501.0 2.044 288.3 2511.0 2.081 288.5 2521.0 2.117 288.7 2531.0 2.152 288.8 2541.0 2.186 289.0 2551.0 2.220 289.1 2561.0 2.253 289.3 2571.0 2.285 289.4 2581.0 2.317 289.6 2591.0 2.348 289.7 2601.0 2.378 289.9 2611.0 2.407 290.0 2621.0 2.435 290.1 2631.0 2.463 290.2 2641.0 2.489 290.4 2651.0 2.515 290.5 2661.0 2.540 290.6 2671.0 2.564 290.7 2681.0 2.587 290.8 2691.0 2.609 290.9 2701.0 2.630 291.1 2711.0 2.651 291.2 2721.0 2.670 291.3 2731.0 2.688 291.4 2741.0 2.705 291.5