| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:55:21 |
| WDS: | STF2289 | WDS ID/Discoverer |
| P: | 1958.851 | Orbital period (years) |
| a: | 2.4491 | Semi-major axis (arcseconds) |
| i: | 101.811 | Inclination (degrees) |
| Ω: | 21.771 | Longitude of ascending node (degrees) |
| T: | 2198.317 | Epoch of periastron passage (year) |
| e: | 0.81761 | Eccentricity |
| ω: | 262.211 | Longitude of periastron (degrees) |
| Start-Year: | 1046.0 | Year |
| End-Year: | 3004.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 181008.69+162835.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18101+1629 | WDS designation |
| Discoverer Code: | STF2289 | Discover designation and components |
| ADS number: | 11123 | Aitken Double Star catalog |
| HD number: | 166479 | HD catalog number |
| Hipparcos number: | 89023 | Hipparcos catalog number |
| V1: | 6.65 | Magnitude of the primary |
| V2: | 7.21 | 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 1.212 217.9 ------------------------- 1046.0 1.332 341.1 1056.0 1.317 340.4 1066.0 1.302 339.6 1076.0 1.288 338.8 1086.0 1.273 338.1 1096.0 1.258 337.2 1106.0 1.244 336.4 1116.0 1.229 335.6 1126.0 1.215 334.7 1136.0 1.200 333.8 1146.0 1.186 332.9 1156.0 1.172 332.0 1166.0 1.158 331.0 1176.0 1.144 330.0 1186.0 1.130 329.0 1196.0 1.116 328.0 1206.0 1.103 326.9 1216.0 1.090 325.8 1226.0 1.077 324.7 1236.0 1.064 323.6 1246.0 1.051 322.4 1256.0 1.039 321.2 1266.0 1.027 320.0 1276.0 1.015 318.8 1286.0 1.003 317.5 1296.0 0.992 316.2 1306.0 0.982 314.9 1316.0 0.971 313.5 1326.0 0.961 312.1 1336.0 0.952 310.7 1346.0 0.942 309.2 1356.0 0.934 307.8 1366.0 0.925 306.3 1376.0 0.918 304.7 1386.0 0.910 303.2 1396.0 0.904 301.6 1406.0 0.897 300.0 1416.0 0.892 298.4 1426.0 0.887 296.7 1436.0 0.882 295.1 1446.0 0.878 293.4 1456.0 0.875 291.7 1466.0 0.872 290.0 1476.0 0.870 288.3 1486.0 0.868 286.6 1496.0 0.867 284.8 1506.0 0.867 283.1 1516.0 0.867 281.4 1526.0 0.868 279.7 1536.0 0.870 277.9 1546.0 0.872 276.2 1556.0 0.874 274.5 1566.0 0.878 272.8 1576.0 0.882 271.2 1586.0 0.886 269.5 1596.0 0.891 267.8 1606.0 0.896 266.2 1616.0 0.902 264.6 1626.0 0.908 263.0 1636.0 0.915 261.5 1646.0 0.923 259.9 1656.0 0.930 258.4 1666.0 0.938 256.9 1676.0 0.947 255.5 1686.0 0.955 254.0 1696.0 0.965 252.6 1706.0 0.974 251.2 1716.0 0.984 249.9 1726.0 0.993 248.5 1736.0 1.003 247.2 1746.0 1.014 246.0 1756.0 1.024 244.7 1766.0 1.035 243.5 1776.0 1.045 242.3 1786.0 1.056 241.1 1796.0 1.066 239.9 1806.0 1.077 238.8 1816.0 1.088 237.7 1826.0 1.098 236.6 1836.0 1.109 235.6 1846.0 1.119 234.5 1856.0 1.129 233.5 1866.0 1.139 232.5 1876.0 1.148 231.5 1886.0 1.157 230.5 1896.0 1.166 229.5 1906.0 1.174 228.6 1916.0 1.182 227.7 1926.0 1.190 226.7 1936.0 1.196 225.8 1946.0 1.202 224.9 1956.0 1.207 224.0 1966.0 1.212 223.1 1976.0 1.215 222.2 1986.0 1.217 221.4 1996.0 1.218 220.5 2006.0 1.218 219.6 2016.0 1.216 218.7 2026.0 1.212 217.9 2036.0 1.206 217.0 2046.0 1.198 216.1 2056.0 1.188 215.2 2066.0 1.175 214.2 2076.0 1.158 213.3 2086.0 1.137 212.3 2096.0 1.112 211.3 2106.0 1.081 210.2 2116.0 1.043 209.0 2126.0 0.997 207.8 2136.0 0.941 206.4 2146.0 0.871 204.8 2156.0 0.784 202.9 2166.0 0.673 200.5 2176.0 0.531 196.9 2186.0 0.352 190.0 2196.0 0.147 164.7 2206.0 0.157 57.3 2216.0 0.365 34.5 2226.0 0.554 28.2 2236.0 0.712 24.9 2246.0 0.844 22.8 2256.0 0.957 21.2 2266.0 1.053 19.9 2276.0 1.137 18.8 2286.0 1.210 17.9 2296.0 1.275 17.0 2306.0 1.332 16.2 2316.0 1.383 15.5 2326.0 1.429 14.9 2336.0 1.470 14.3 2346.0 1.507 13.7 2356.0 1.541 13.1 2366.0 1.571 12.6 2376.0 1.598 12.1 2386.0 1.622 11.6 2396.0 1.644 11.1 2406.0 1.664 10.6 2416.0 1.682 10.1 2426.0 1.698 9.7 2436.0 1.712 9.2 2446.0 1.725 8.8 2456.0 1.736 8.4 2466.0 1.746 7.9 2476.0 1.754 7.5 2486.0 1.761 7.1 2496.0 1.767 6.7 2506.0 1.772 6.3 2516.0 1.775 5.8 2526.0 1.778 5.4 2536.0 1.780 5.0 2546.0 1.781 4.6 2556.0 1.781 4.2 2566.0 1.781 3.8 2576.0 1.779 3.4 2586.0 1.777 3.0 2596.0 1.775 2.6 2606.0 1.771 2.2 2616.0 1.767 1.7 2626.0 1.763 1.3 2636.0 1.757 0.9 2646.0 1.752 0.5 2656.0 1.745 0.1 2666.0 1.739 359.6 2676.0 1.731 359.2 2686.0 1.724 358.8 2696.0 1.716 358.3 2706.0 1.707 357.9 2716.0 1.698 357.4 2726.0 1.689 357.0 2736.0 1.679 356.5 2746.0 1.669 356.1 2756.0 1.659 355.6 2766.0 1.648 355.1 2776.0 1.638 354.6 2786.0 1.626 354.1 2796.0 1.615 353.6 2806.0 1.603 353.1 2816.0 1.591 352.6 2826.0 1.579 352.1 2836.0 1.566 351.6 2846.0 1.554 351.1 2856.0 1.541 350.5 2866.0 1.527 350.0 2876.0 1.514 349.4 2886.0 1.501 348.8 2896.0 1.487 348.2 2906.0 1.473 347.7 2916.0 1.459 347.0 2926.0 1.445 346.4 2936.0 1.431 345.8 2946.0 1.417 345.2 2956.0 1.403 344.5 2966.0 1.388 343.8 2976.0 1.374 343.2 2986.0 1.359 342.5 2996.0 1.345 341.8