| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:20:46 |
| WDS: | STF2807 | WDS ID/Discoverer |
| P: | 2818.985 | Orbital period (years) |
| a: | 6.15221 | Semi-major axis (arcseconds) |
| i: | 91.733 | Inclination (degrees) |
| Ω: | 136.406 | Longitude of ascending node (degrees) |
| T: | 1641.022 | Epoch of periastron passage (year) |
| e: | 0.80384 | Eccentricity |
| ω: | 108.438 | Longitude of periastron (degrees) |
| Start-Year: | 616.0 | Year |
| End-Year: | 3434.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 211733.47+823103.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21176+8231 | WDS designation |
| Discoverer Code: | STF2807 | Discover designation and components |
| ADS number: | 14921 | Aitken Double Star catalog |
| HD number: | 204372 | HD catalog number |
| Hipparcos number: | 105112 | Hipparcos catalog number |
| V1: | 8.65 | Magnitude of the primary |
| V2: | 8.77 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | 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 1.738 310.1 ------------------------- 616.0 4.909 139.7 626.0 4.937 139.7 636.0 4.964 139.6 646.0 4.991 139.6 656.0 5.017 139.6 666.0 5.043 139.5 676.0 5.068 139.5 686.0 5.093 139.5 696.0 5.117 139.4 706.0 5.141 139.4 716.0 5.164 139.4 726.0 5.187 139.3 736.0 5.209 139.3 746.0 5.231 139.3 756.0 5.251 139.2 766.0 5.272 139.2 776.0 5.291 139.2 786.0 5.310 139.1 796.0 5.329 139.1 806.0 5.347 139.1 816.0 5.364 139.0 826.0 5.380 139.0 836.0 5.396 139.0 846.0 5.411 139.0 856.0 5.425 138.9 866.0 5.439 138.9 876.0 5.452 138.9 886.0 5.464 138.8 896.0 5.476 138.8 906.0 5.486 138.8 916.0 5.496 138.7 926.0 5.505 138.7 936.0 5.513 138.7 946.0 5.521 138.7 956.0 5.527 138.6 966.0 5.533 138.6 976.0 5.538 138.6 986.0 5.542 138.5 996.0 5.544 138.5 1006.0 5.546 138.5 1016.0 5.547 138.5 1026.0 5.547 138.4 1036.0 5.546 138.4 1046.0 5.544 138.4 1056.0 5.541 138.4 1066.0 5.537 138.3 1076.0 5.531 138.3 1086.0 5.525 138.3 1096.0 5.517 138.2 1106.0 5.508 138.2 1116.0 5.497 138.2 1126.0 5.486 138.2 1136.0 5.473 138.1 1146.0 5.459 138.1 1156.0 5.443 138.1 1166.0 5.425 138.0 1176.0 5.407 138.0 1186.0 5.386 138.0 1196.0 5.364 137.9 1206.0 5.341 137.9 1216.0 5.315 137.9 1226.0 5.288 137.9 1236.0 5.259 137.8 1246.0 5.228 137.8 1256.0 5.195 137.8 1266.0 5.160 137.7 1276.0 5.123 137.7 1286.0 5.083 137.7 1296.0 5.041 137.6 1306.0 4.997 137.6 1316.0 4.949 137.6 1326.0 4.900 137.5 1336.0 4.847 137.5 1346.0 4.791 137.4 1356.0 4.732 137.4 1366.0 4.670 137.4 1376.0 4.604 137.3 1386.0 4.535 137.3 1396.0 4.461 137.2 1406.0 4.383 137.2 1416.0 4.301 137.2 1426.0 4.214 137.1 1436.0 4.122 137.1 1446.0 4.024 137.0 1456.0 3.920 136.9 1466.0 3.809 136.9 1476.0 3.692 136.8 1486.0 3.566 136.8 1496.0 3.432 136.7 1506.0 3.289 136.6 1516.0 3.135 136.5 1526.0 2.969 136.4 1536.0 2.790 136.3 1546.0 2.596 136.2 1556.0 2.386 136.1 1566.0 2.156 135.9 1576.0 1.905 135.7 1586.0 1.628 135.4 1596.0 1.322 135.0 1606.0 0.986 134.3 1616.0 0.619 132.9 1626.0 0.227 126.8 1636.0 0.185 327.8 1646.0 0.575 319.6 1656.0 0.932 318.0 1666.0 1.238 317.3 1676.0 1.492 316.8 1686.0 1.697 316.5 1696.0 1.863 316.2 1706.0 1.995 316.0 1716.0 2.102 315.8 1726.0 2.186 315.6 1736.0 2.253 315.4 1746.0 2.306 315.2 1756.0 2.346 315.1 1766.0 2.376 314.9 1776.0 2.396 314.8 1786.0 2.410 314.6 1796.0 2.416 314.5 1806.0 2.417 314.3 1816.0 2.413 314.2 1826.0 2.404 314.0 1836.0 2.391 313.9 1846.0 2.375 313.7 1856.0 2.355 313.5 1866.0 2.332 313.4 1876.0 2.307 313.2 1886.0 2.280 313.1 1896.0 2.250 312.9 1906.0 2.218 312.7 1916.0 2.185 312.5 1926.0 2.150 312.4 1936.0 2.113 312.2 1946.0 2.075 312.0 1956.0 2.036 311.8 1966.0 1.996 311.5 1976.0 1.954 311.3 1986.0 1.912 311.1 1996.0 1.869 310.8 2006.0 1.825 310.6 2016.0 1.780 310.3 2026.0 1.734 310.0 2036.0 1.688 309.7 2046.0 1.641 309.4 2056.0 1.593 309.1 2066.0 1.545 308.7 2076.0 1.497 308.4 2086.0 1.448 308.0 2096.0 1.398 307.5 2106.0 1.349 307.1 2116.0 1.299 306.6 2126.0 1.249 306.0 2136.0 1.198 305.5 2146.0 1.148 304.8 2156.0 1.097 304.1 2166.0 1.046 303.4 2176.0 0.996 302.5 2186.0 0.945 301.6 2196.0 0.894 300.6 2206.0 0.843 299.4 2216.0 0.793 298.1 2226.0 0.743 296.7 2236.0 0.693 295.0 2246.0 0.644 293.0 2256.0 0.595 290.8 2266.0 0.548 288.1 2276.0 0.502 284.9 2286.0 0.457 281.1 2296.0 0.415 276.6 2306.0 0.377 271.0 2316.0 0.342 264.2 2326.0 0.313 256.1 2336.0 0.292 246.5 2346.0 0.280 235.8 2356.0 0.278 224.5 2366.0 0.287 213.5 2376.0 0.305 203.5 2386.0 0.332 194.9 2396.0 0.364 187.7 2406.0 0.402 181.7 2416.0 0.443 176.8 2426.0 0.487 172.8 2436.0 0.532 169.5 2446.0 0.580 166.6 2456.0 0.628 164.2 2466.0 0.677 162.2 2476.0 0.727 160.4 2486.0 0.777 158.9 2496.0 0.828 157.5 2506.0 0.879 156.3 2516.0 0.930 155.3 2526.0 0.981 154.3 2536.0 1.033 153.5 2546.0 1.084 152.7 2556.0 1.136 152.0 2566.0 1.188 151.3 2576.0 1.239 150.8 2586.0 1.291 150.2 2596.0 1.343 149.7 2606.0 1.394 149.2 2616.0 1.446 148.8 2626.0 1.498 148.4 2636.0 1.549 148.0 2646.0 1.600 147.7 2656.0 1.651 147.4 2666.0 1.703 147.0 2676.0 1.754 146.8 2686.0 1.804 146.5 2696.0 1.855 146.2 2706.0 1.906 146.0 2716.0 1.956 145.7 2726.0 2.006 145.5 2736.0 2.056 145.3 2746.0 2.106 145.1 2756.0 2.156 144.9 2766.0 2.206 144.7 2776.0 2.255 144.6 2786.0 2.304 144.4 2796.0 2.353 144.2 2806.0 2.402 144.1 2816.0 2.451 143.9 2826.0 2.499 143.8 2836.0 2.547 143.7 2846.0 2.595 143.5 2856.0 2.643 143.4 2866.0 2.691 143.3 2876.0 2.738 143.2 2886.0 2.785 143.0 2896.0 2.832 142.9 2906.0 2.879 142.8 2916.0 2.925 142.7 2926.0 2.971 142.6 2936.0 3.017 142.5 2946.0 3.063 142.4 2956.0 3.108 142.3 2966.0 3.154 142.2 2976.0 3.198 142.2 2986.0 3.243 142.1 2996.0 3.287 142.0 3006.0 3.331 141.9 3016.0 3.375 141.8 3026.0 3.419 141.8 3036.0 3.462 141.7 3046.0 3.505 141.6 3056.0 3.548 141.6 3066.0 3.590 141.5 3076.0 3.632 141.4 3086.0 3.674 141.4 3096.0 3.715 141.3 3106.0 3.757 141.2 3116.0 3.797 141.2 3126.0 3.838 141.1 3136.0 3.878 141.0 3146.0 3.918 141.0 3156.0 3.958 140.9 3166.0 3.997 140.9 3176.0 4.036 140.8 3186.0 4.074 140.8 3196.0 4.112 140.7 3206.0 4.150 140.7 3216.0 4.188 140.6 3226.0 4.225 140.6 3236.0 4.261 140.5 3246.0 4.298 140.5 3256.0 4.334 140.4 3266.0 4.369 140.4 3276.0 4.405 140.3 3286.0 4.439 140.3 3296.0 4.474 140.2 3306.0 4.508 140.2 3316.0 4.542 140.2 3326.0 4.575 140.1 3336.0 4.608 140.1 3346.0 4.640 140.0 3356.0 4.672 140.0 3366.0 4.703 140.0 3376.0 4.735 139.9 3386.0 4.765 139.9 3396.0 4.795 139.8 3406.0 4.825 139.8 3416.0 4.854 139.8 3426.0 4.883 139.7