| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:22:11 |
| WDS: | STF2799AB | WDS ID/Discoverer |
| P: | 1108.405 | Orbital period (years) |
| a: | 4.47939 | Semi-major axis (arcseconds) |
| i: | 102.311 | Inclination (degrees) |
| Ω: | 61.281 | Longitude of ascending node (degrees) |
| T: | 2102.830 | Epoch of periastron passage (year) |
| e: | 0.76621 | Eccentricity |
| ω: | 247.669 | Longitude of periastron (degrees) |
| Start-Year: | 1471.0 | Year |
| End-Year: | 2579.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 212852.79+110505.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21289+1105 | WDS designation |
| Discoverer Code: | STF2799AB | Discover designation and components |
| ADS number: | 15007 | Aitken Double Star catalog |
| HD number: | 204509 | HD catalog number |
| Hipparcos number: | 106053 | Hipparcos catalog number |
| V1: | 7.37 | Magnitude of the primary |
| V2: | 7.44 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 1.899 257.1 ------------------------- 1471.0 3.902 39.1 1481.0 3.842 38.5 1491.0 3.779 37.9 1501.0 3.715 37.2 1511.0 3.649 36.6 1521.0 3.581 35.9 1531.0 3.512 35.2 1541.0 3.442 34.4 1551.0 3.370 33.7 1561.0 3.296 32.9 1571.0 3.222 32.0 1581.0 3.146 31.1 1591.0 3.069 30.2 1601.0 2.991 29.2 1611.0 2.913 28.2 1621.0 2.833 27.1 1631.0 2.753 26.0 1641.0 2.672 24.8 1651.0 2.592 23.5 1661.0 2.510 22.1 1671.0 2.429 20.6 1681.0 2.348 19.1 1691.0 2.267 17.4 1701.0 2.187 15.6 1711.0 2.107 13.7 1721.0 2.029 11.6 1731.0 1.952 9.3 1741.0 1.877 6.9 1751.0 1.804 4.3 1761.0 1.734 1.4 1771.0 1.668 358.3 1781.0 1.605 355.0 1791.0 1.546 351.4 1801.0 1.493 347.5 1811.0 1.445 343.4 1821.0 1.405 339.0 1831.0 1.371 334.3 1841.0 1.346 329.5 1851.0 1.328 324.5 1861.0 1.320 319.4 1871.0 1.320 314.2 1881.0 1.329 309.2 1891.0 1.347 304.2 1901.0 1.372 299.3 1911.0 1.404 294.7 1921.0 1.443 290.3 1931.0 1.486 286.1 1941.0 1.533 282.2 1951.0 1.584 278.5 1961.0 1.636 275.1 1971.0 1.688 271.8 1981.0 1.739 268.8 1991.0 1.787 265.9 2001.0 1.830 263.2 2011.0 1.867 260.6 2021.0 1.892 258.1 2031.0 1.904 255.6 2041.0 1.896 253.1 2051.0 1.860 250.6 2061.0 1.784 247.9 2071.0 1.649 244.9 2081.0 1.423 241.1 2091.0 1.064 235.4 2101.0 0.550 220.5 2111.0 0.277 119.1 2121.0 0.820 77.4 2131.0 1.349 69.4 2141.0 1.797 65.7 2151.0 2.175 63.5 2161.0 2.496 61.8 2171.0 2.772 60.5 2181.0 3.011 59.5 2191.0 3.221 58.5 2201.0 3.405 57.7 2211.0 3.568 57.0 2221.0 3.712 56.3 2231.0 3.839 55.7 2241.0 3.952 55.1 2251.0 4.052 54.6 2261.0 4.141 54.0 2271.0 4.218 53.5 2281.0 4.286 53.0 2291.0 4.345 52.5 2301.0 4.396 52.1 2311.0 4.440 51.6 2321.0 4.476 51.2 2331.0 4.506 50.7 2341.0 4.530 50.3 2351.0 4.548 49.9 2361.0 4.561 49.4 2371.0 4.568 49.0 2381.0 4.571 48.6 2391.0 4.569 48.1 2401.0 4.563 47.7 2411.0 4.552 47.3 2421.0 4.538 46.8 2431.0 4.520 46.4 2441.0 4.499 46.0 2451.0 4.473 45.5 2461.0 4.445 45.1 2471.0 4.414 44.6 2481.0 4.379 44.2 2491.0 4.342 43.7 2501.0 4.302 43.2 2511.0 4.259 42.7 2521.0 4.213 42.2 2531.0 4.166 41.7 2541.0 4.115 41.2 2551.0 4.063 40.7 2561.0 4.008 40.1 2571.0 3.951 39.6