| WDS: | STF1561AB | WDS ID/Discoverer |
| P: | 1584.380 | Orbital period (years) |
| a: | 13.88028 | Semi-major axis (arcseconds) |
| i: | 108.687 | Inclination (degrees) |
| Ω: | 288.192 | Longitude of ascending node (degrees) |
| T: | 1548.997 | Epoch of periastron passage (year) |
| e: | 0.63268 | Eccentricity |
| ω: | 273.84 | Longitude of periastron (degrees) |
| Start-Year: | 1232.8101000000001 | Year |
| End-Year: | 2817.1899 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF1561AB |
||
| Position: | 113844.90+450630.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11387+4507 | WDS designation |
| Discoverer Code: | STF1561AB | Discover designation and components |
| ADS number: | 8250 | Aitken Double Star catalog |
| HD number: | 101177 | HD catalog number |
| Hipparcos number: | 56809 | Hipparcos catalog number |
| V1: | 6.53 | Magnitude of the primary |
| V2: | 8.23 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 8.843 244.79 -------------------------- 1232.81 11.780 127.28 1242.81 11.797 126.50 1252.81 11.804 125.72 1262.81 11.801 124.94 1272.81 11.786 124.16 1282.81 11.760 123.38 1292.81 11.721 122.59 1302.81 11.668 121.80 1312.81 11.600 120.99 1322.81 11.516 120.18 1332.81 11.415 119.35 1342.81 11.295 118.51 1352.81 11.155 117.65 1362.81 10.993 116.76 1372.81 10.807 115.85 1382.81 10.595 114.90 1392.81 10.354 113.91 1402.81 10.082 112.87 1412.81 9.775 111.77 1422.81 9.430 110.59 1432.81 9.043 109.32 1442.81 8.610 107.93 1452.81 8.126 106.38 1462.81 7.585 104.62 1472.81 6.983 102.57 1482.81 6.316 100.11 1492.81 5.580 97.03 1502.81 4.777 92.97 1512.81 3.918 87.18 1522.81 3.034 78.04 1532.81 2.210 61.69 1542.81 1.678 31.13 1552.81 1.796 352.38 1562.81 2.462 327.13 1572.81 3.316 313.77 1582.81 4.187 305.95 1592.81 5.012 300.79 1602.81 5.767 297.04 1612.81 6.446 294.12 1622.81 7.050 291.74 1632.81 7.584 289.71 1642.81 8.054 287.93 1652.81 8.466 286.34 1662.81 8.825 284.89 1672.81 9.139 283.54 1682.81 9.410 282.28 1692.81 9.645 281.09 1702.81 9.845 279.94 1712.81 10.016 278.84 1722.81 10.160 277.77 1732.81 10.278 276.74 1742.81 10.375 275.72 1752.81 10.452 274.72 1762.81 10.510 273.73 1772.81 10.551 272.75 1782.81 10.578 271.77 1792.81 10.590 270.81 1802.81 10.589 269.84 1812.81 10.577 268.87 1822.81 10.554 267.89 1832.81 10.521 266.92 1842.81 10.480 265.93 1852.81 10.430 264.94 1862.81 10.372 263.93 1872.81 10.308 262.92 1882.81 10.238 261.89 1892.81 10.162 260.85 1902.81 10.081 259.78 1912.81 9.995 258.71 1922.81 9.905 257.61 1932.81 9.812 256.49 1942.81 9.716 255.35 1952.81 9.617 254.19 1962.81 9.515 253.00 1972.81 9.412 251.79 1982.81 9.308 250.55 1992.81 9.202 249.28 2002.81 9.096 247.99 2012.81 8.989 246.66 2022.81 8.882 245.30 2032.81 8.776 243.90 2042.81 8.671 242.48 2052.81 8.566 241.01 2062.81 8.464 239.51 2072.81 8.363 237.98 2082.81 8.264 236.41 2092.81 8.168 234.80 2102.81 8.075 233.15 2112.81 7.985 231.47 2122.81 7.899 229.75 2132.81 7.816 227.99 2142.81 7.738 226.19 2152.81 7.664 224.36 2162.81 7.595 222.49 2172.81 7.532 220.59 2182.81 7.473 218.66 2192.81 7.421 216.70 2202.81 7.374 214.72 2212.81 7.333 212.71 2222.81 7.299 210.68 2232.81 7.271 208.63 2242.81 7.250 206.57 2252.81 7.235 204.50 2262.81 7.227 202.42 2272.81 7.227 200.34 2282.81 7.233 198.27 2292.81 7.245 196.19 2302.81 7.265 194.13 2312.81 7.291 192.08 2322.81 7.324 190.04 2332.81 7.364 188.03 2342.81 7.410 186.04 2352.81 7.462 184.07 2362.81 7.520 182.14 2372.81 7.583 180.23 2382.81 7.652 178.36 2392.81 7.727 176.52 2402.81 7.806 174.72 2412.81 7.890 172.96 2422.81 7.979 171.23 2432.81 8.071 169.55 2442.81 8.168 167.90 2452.81 8.268 166.29 2462.81 8.371 164.72 2472.81 8.477 163.19 2482.81 8.586 161.70 2492.81 8.697 160.24 2502.81 8.810 158.83 2512.81 8.925 157.44 2522.81 9.042 156.10 2532.81 9.159 154.79 2542.81 9.278 153.51 2552.81 9.397 152.26 2562.81 9.516 151.05 2572.81 9.636 149.86 2582.81 9.755 148.71 2592.81 9.874 147.58 2602.81 9.992 146.48 2612.81 10.110 145.40 2622.81 10.225 144.35 2632.81 10.340 143.33 2642.81 10.452 142.32 2652.81 10.562 141.34 2662.81 10.670 140.37 2672.81 10.775 139.43 2682.81 10.877 138.50 2692.81 10.976 137.59 2702.81 11.071 136.70 2712.81 11.162 135.82 2722.81 11.248 134.95 2732.81 11.330 134.10 2742.81 11.407 133.26 2752.81 11.479 132.43 2762.81 11.545 131.61 2772.81 11.604 130.80 2782.81 11.657 130.00 2792.81 11.702 129.20 2802.81 11.740 128.41 2812.81 11.770 127.63
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 16:40:20 |