| WDS: | STF1555AB | WDS ID/Discoverer |
| P: | 1730.000 | Orbital period (years) |
| a: | 3.042 | Semi-major axis (arcseconds) |
| i: | 86.1 | Inclination (degrees) |
| Ω: | 149.8 | Longitude of ascending node (degrees) |
| T: | 2023.200 | Epoch of periastron passage (year) |
| e: | 0.778 | Eccentricity |
| ω: | 22.4 | Longitude of periastron (degrees) |
| Start-Year: | 1160.0 | Year |
| End-Year: | 2890.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF1555AB |
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| Position: | 113617.94+274652.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11363+2747 | WDS designation |
| Discoverer Code: | STF1555AB | Discover designation and components |
| ADS number: | 8231 | Aitken Double Star catalog |
| HD number: | 100808 | HD catalog number |
| Hipparcos number: | 56601 | Hipparcos catalog number |
| V1: | 6.41 | Magnitude of the primary |
| V2: | 6.78 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Doc2017a | 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 0.582 152.15 -------------------------- 1160.00 5.000 331.41 1170.00 4.984 331.44 1180.00 4.967 331.48 1190.00 4.950 331.51 1200.00 4.930 331.55 1210.00 4.910 331.58 1220.00 4.889 331.61 1230.00 4.866 331.65 1240.00 4.842 331.68 1250.00 4.818 331.72 1260.00 4.792 331.75 1270.00 4.764 331.79 1280.00 4.736 331.83 1290.00 4.706 331.86 1300.00 4.676 331.90 1310.00 4.644 331.94 1320.00 4.611 331.98 1330.00 4.577 332.02 1340.00 4.542 332.06 1350.00 4.505 332.10 1360.00 4.467 332.14 1370.00 4.429 332.18 1380.00 4.389 332.22 1390.00 4.347 332.26 1400.00 4.305 332.31 1410.00 4.262 332.35 1420.00 4.217 332.40 1430.00 4.171 332.45 1440.00 4.124 332.49 1450.00 4.075 332.54 1460.00 4.026 332.59 1470.00 3.975 332.64 1480.00 3.923 332.70 1490.00 3.869 332.75 1500.00 3.815 332.81 1510.00 3.759 332.86 1520.00 3.702 332.92 1530.00 3.643 332.98 1540.00 3.584 333.05 1550.00 3.523 333.11 1560.00 3.460 333.18 1570.00 3.397 333.25 1580.00 3.332 333.32 1590.00 3.265 333.40 1600.00 3.197 333.48 1610.00 3.128 333.56 1620.00 3.058 333.64 1630.00 2.986 333.73 1640.00 2.912 333.83 1650.00 2.837 333.93 1660.00 2.761 334.03 1670.00 2.683 334.15 1680.00 2.603 334.26 1690.00 2.522 334.39 1700.00 2.440 334.52 1710.00 2.355 334.67 1720.00 2.270 334.82 1730.00 2.182 334.99 1740.00 2.093 335.17 1750.00 2.002 335.36 1760.00 1.909 335.58 1770.00 1.815 335.81 1780.00 1.719 336.08 1790.00 1.621 336.37 1800.00 1.521 336.71 1810.00 1.419 337.09 1820.00 1.315 337.53 1830.00 1.210 338.05 1840.00 1.103 338.66 1850.00 0.993 339.41 1860.00 0.882 340.35 1870.00 0.769 341.56 1880.00 0.655 343.20 1890.00 0.540 345.52 1900.00 0.424 349.13 1910.00 0.309 355.43 1920.00 0.201 8.82 1930.00 0.123 44.49 1940.00 0.143 99.61 1950.00 0.236 124.83 1960.00 0.346 134.93 1970.00 0.456 140.14 1980.00 0.558 143.36 1990.00 0.645 145.64 2000.00 0.703 147.43 2010.00 0.715 149.05 2020.00 0.659 150.77 2030.00 0.528 153.09 2040.00 0.340 157.60 2050.00 0.131 176.26 2060.00 0.129 298.67 2070.00 0.342 317.50 2080.00 0.555 321.82 2090.00 0.759 323.76 2100.00 0.953 324.90 2110.00 1.138 325.65 2120.00 1.313 326.20 2130.00 1.480 326.63 2140.00 1.640 326.97 2150.00 1.791 327.25 2160.00 1.936 327.48 2170.00 2.075 327.69 2180.00 2.208 327.87 2190.00 2.336 328.03 2200.00 2.458 328.17 2210.00 2.576 328.30 2220.00 2.688 328.42 2230.00 2.797 328.53 2240.00 2.902 328.63 2250.00 3.003 328.72 2260.00 3.100 328.81 2270.00 3.193 328.90 2280.00 3.283 328.97 2290.00 3.370 329.05 2300.00 3.454 329.12 2310.00 3.535 329.19 2320.00 3.613 329.25 2330.00 3.688 329.31 2340.00 3.761 329.37 2350.00 3.831 329.43 2360.00 3.898 329.48 2370.00 3.964 329.54 2380.00 4.026 329.59 2390.00 4.087 329.64 2400.00 4.145 329.69 2410.00 4.201 329.73 2420.00 4.255 329.78 2430.00 4.307 329.83 2440.00 4.357 329.87 2450.00 4.405 329.91 2460.00 4.451 329.95 2470.00 4.496 330.00 2480.00 4.538 330.04 2490.00 4.579 330.08 2500.00 4.618 330.11 2510.00 4.655 330.15 2520.00 4.690 330.19 2530.00 4.724 330.23 2540.00 4.756 330.26 2550.00 4.787 330.30 2560.00 4.816 330.34 2570.00 4.843 330.37 2580.00 4.869 330.41 2590.00 4.894 330.44 2600.00 4.916 330.47 2610.00 4.938 330.51 2620.00 4.958 330.54 2630.00 4.976 330.58 2640.00 4.994 330.61 2650.00 5.009 330.64 2660.00 5.024 330.67 2670.00 5.037 330.71 2680.00 5.048 330.74 2690.00 5.059 330.77 2700.00 5.068 330.80 2710.00 5.075 330.84 2720.00 5.082 330.87 2730.00 5.087 330.90 2740.00 5.090 330.93 2750.00 5.093 330.96 2760.00 5.094 330.99 2770.00 5.094 331.03 2780.00 5.093 331.06 2790.00 5.091 331.09 2800.00 5.087 331.12 2810.00 5.082 331.15 2820.00 5.076 331.19 2830.00 5.069 331.22 2840.00 5.060 331.25 2850.00 5.050 331.28 2860.00 5.040 331.31 2870.00 5.028 331.35 2880.00 5.014 331.38
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:39:48 |