| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:10:51 |
| WDS: | STF2613AB | WDS ID/Discoverer |
| P: | 2106.099 | Orbital period (years) |
| a: | 4.54412 | Semi-major axis (arcseconds) |
| i: | 74.956 | Inclination (degrees) |
| Ω: | 175.719 | Longitude of ascending node (degrees) |
| T: | 2220.550 | Epoch of periastron passage (year) |
| e: | 0.65213 | Eccentricity |
| ω: | 290.393 | Longitude of periastron (degrees) |
| Start-Year: | 972.0 | Year |
| End-Year: | 3078.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 200126.66+104454.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20014+1045 | WDS designation |
| Discoverer Code: | STF2613AB | Discover designation and components |
| ADS number: | 13256 | Aitken Double Star catalog |
| HD number: | 189783 | HD catalog number |
| Hipparcos number: | 98578 | Hipparcos catalog number |
| V1: | 7.48 | Magnitude of the primary |
| V2: | 8.02 | 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 3.438 355.4 ------------------------- 972.0 2.328 302.4 982.0 2.369 303.7 992.0 2.411 304.9 1002.0 2.453 306.1 1012.0 2.496 307.2 1022.0 2.540 308.3 1032.0 2.583 309.4 1042.0 2.627 310.4 1052.0 2.672 311.4 1062.0 2.716 312.3 1072.0 2.761 313.3 1082.0 2.806 314.2 1092.0 2.851 315.0 1102.0 2.896 315.9 1112.0 2.941 316.7 1122.0 2.986 317.5 1132.0 3.031 318.2 1142.0 3.076 319.0 1152.0 3.121 319.7 1162.0 3.166 320.4 1172.0 3.211 321.1 1182.0 3.255 321.8 1192.0 3.299 322.4 1202.0 3.343 323.0 1212.0 3.387 323.7 1222.0 3.430 324.3 1232.0 3.473 324.8 1242.0 3.516 325.4 1252.0 3.558 326.0 1262.0 3.600 326.5 1272.0 3.642 327.0 1282.0 3.683 327.5 1292.0 3.724 328.1 1302.0 3.764 328.6 1312.0 3.804 329.0 1322.0 3.843 329.5 1332.0 3.882 330.0 1342.0 3.920 330.4 1352.0 3.957 330.9 1362.0 3.994 331.3 1372.0 4.031 331.8 1382.0 4.066 332.2 1392.0 4.101 332.6 1402.0 4.136 333.0 1412.0 4.169 333.4 1422.0 4.202 333.8 1432.0 4.234 334.2 1442.0 4.266 334.6 1452.0 4.296 335.0 1462.0 4.326 335.3 1472.0 4.355 335.7 1482.0 4.383 336.1 1492.0 4.410 336.4 1502.0 4.437 336.8 1512.0 4.462 337.1 1522.0 4.486 337.5 1532.0 4.510 337.8 1542.0 4.532 338.2 1552.0 4.554 338.5 1562.0 4.574 338.8 1572.0 4.593 339.2 1582.0 4.611 339.5 1592.0 4.628 339.8 1602.0 4.644 340.1 1612.0 4.659 340.5 1622.0 4.672 340.8 1632.0 4.684 341.1 1642.0 4.695 341.4 1652.0 4.704 341.7 1662.0 4.712 342.0 1672.0 4.718 342.3 1682.0 4.723 342.7 1692.0 4.726 343.0 1702.0 4.728 343.3 1712.0 4.728 343.6 1722.0 4.727 343.9 1732.0 4.724 344.2 1742.0 4.719 344.5 1752.0 4.712 344.8 1762.0 4.703 345.2 1772.0 4.692 345.5 1782.0 4.679 345.8 1792.0 4.664 346.1 1802.0 4.647 346.4 1812.0 4.627 346.7 1822.0 4.605 347.1 1832.0 4.581 347.4 1842.0 4.554 347.7 1852.0 4.525 348.1 1862.0 4.492 348.4 1872.0 4.457 348.8 1882.0 4.419 349.1 1892.0 4.377 349.5 1902.0 4.333 349.8 1912.0 4.284 350.2 1922.0 4.233 350.6 1932.0 4.177 351.0 1942.0 4.117 351.4 1952.0 4.054 351.8 1962.0 3.985 352.2 1972.0 3.913 352.7 1982.0 3.835 353.1 1992.0 3.752 353.6 2002.0 3.664 354.1 2012.0 3.569 354.7 2022.0 3.469 355.2 2032.0 3.362 355.8 2042.0 3.248 356.5 2052.0 3.127 357.1 2062.0 2.997 357.9 2072.0 2.859 358.7 2082.0 2.712 359.6 2092.0 2.556 0.6 2102.0 2.389 1.7 2112.0 2.211 3.0 2122.0 2.023 4.6 2132.0 1.822 6.5 2142.0 1.611 8.8 2152.0 1.388 11.9 2162.0 1.157 16.3 2172.0 0.922 22.8 2182.0 0.693 33.7 2192.0 0.502 54.0 2202.0 0.420 88.9 2212.0 0.510 123.2 2222.0 0.703 142.9 2232.0 0.927 153.6 2242.0 1.152 160.1 2252.0 1.365 164.5 2262.0 1.559 167.8 2272.0 1.734 170.3 2282.0 1.888 172.5 2292.0 2.023 174.3 2302.0 2.139 175.9 2312.0 2.239 177.3 2322.0 2.323 178.7 2332.0 2.394 179.9 2342.0 2.453 181.1 2352.0 2.501 182.2 2362.0 2.540 183.3 2372.0 2.570 184.4 2382.0 2.592 185.4 2392.0 2.608 186.4 2402.0 2.618 187.5 2412.0 2.623 188.5 2422.0 2.622 189.5 2432.0 2.618 190.5 2442.0 2.609 191.5 2452.0 2.597 192.5 2462.0 2.583 193.6 2472.0 2.565 194.6 2482.0 2.545 195.7 2492.0 2.523 196.8 2502.0 2.498 197.9 2512.0 2.473 199.0 2522.0 2.445 200.1 2532.0 2.417 201.3 2542.0 2.387 202.5 2552.0 2.357 203.8 2562.0 2.326 205.0 2572.0 2.294 206.3 2582.0 2.262 207.7 2592.0 2.229 209.0 2602.0 2.197 210.5 2612.0 2.164 211.9 2622.0 2.132 213.4 2632.0 2.100 215.0 2642.0 2.068 216.6 2652.0 2.037 218.2 2662.0 2.007 219.9 2672.0 1.978 221.7 2682.0 1.950 223.5 2692.0 1.922 225.3 2702.0 1.896 227.2 2712.0 1.872 229.2 2722.0 1.848 231.2 2732.0 1.827 233.3 2742.0 1.807 235.4 2752.0 1.789 237.5 2762.0 1.773 239.7 2772.0 1.759 241.9 2782.0 1.747 244.2 2792.0 1.737 246.5 2802.0 1.729 248.8 2812.0 1.724 251.1 2822.0 1.721 253.5 2832.0 1.720 255.8 2842.0 1.722 258.2 2852.0 1.726 260.5 2862.0 1.732 262.8 2872.0 1.741 265.1 2882.0 1.752 267.4 2892.0 1.766 269.6 2902.0 1.781 271.9 2912.0 1.799 274.0 2922.0 1.818 276.1 2932.0 1.840 278.2 2942.0 1.864 280.2 2952.0 1.889 282.2 2962.0 1.916 284.1 2972.0 1.945 286.0 2982.0 1.975 287.8 2992.0 2.007 289.6 3002.0 2.040 291.3 3012.0 2.075 292.9 3022.0 2.110 294.5 3032.0 2.147 296.0 3042.0 2.184 297.5 3052.0 2.223 298.9 3062.0 2.262 300.3 3072.0 2.303 301.6