| WDS: | STF2799AB | WDS ID/Discoverer |
| P: | 1108.405 | Orbital period (years) |
| a: | 4.47939 | Semi-major axis (arcseconds) |
| i: | 102.311 | Inclination (degrees) |
| Ω: | 61.281 | Longitude of ascending node (degrees) |
| T: | 2102.830 | Epoch of periastron passage (year) |
| e: | 0.76621 | Eccentricity |
| ω: | 247.669 | Longitude of periastron (degrees) |
| Start-Year: | 1470.7975000000001 | Year |
| End-Year: | 2579.2025 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF2799AB |
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| Position: | 212852.79+110505.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21289+1105 | WDS designation |
| Discoverer Code: | STF2799AB | Discover designation and components |
| ADS number: | 15007 | Aitken Double Star catalog |
| HD number: | 204509 | HD catalog number |
| Hipparcos number: | 106053 | Hipparcos catalog number |
| V1: | 7.37 | Magnitude of the primary |
| V2: | 7.44 | Magnitude of the secondary |
| Equinox: | 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: | 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 1.901 256.69 -------------------------- 1470.80 3.903 39.08 1480.80 3.843 38.49 1490.80 3.780 37.87 1500.80 3.716 37.24 1510.80 3.650 36.58 1520.80 3.583 35.89 1530.80 3.514 35.19 1540.80 3.443 34.45 1550.80 3.371 33.68 1560.80 3.298 32.88 1570.80 3.223 32.04 1580.80 3.147 31.16 1590.80 3.071 30.23 1600.80 2.993 29.26 1610.80 2.914 28.24 1620.80 2.835 27.16 1630.80 2.755 26.01 1640.80 2.674 24.80 1650.80 2.593 23.51 1660.80 2.512 22.14 1670.80 2.431 20.68 1680.80 2.350 19.12 1690.80 2.269 17.44 1700.80 2.188 15.64 1710.80 2.109 13.71 1720.80 2.031 11.62 1730.80 1.954 9.37 1740.80 1.879 6.94 1750.80 1.806 4.31 1760.80 1.736 1.46 1770.80 1.669 358.37 1780.80 1.606 355.04 1790.80 1.547 351.45 1800.80 1.494 347.58 1810.80 1.446 343.45 1820.80 1.405 339.05 1830.80 1.372 334.41 1840.80 1.346 329.57 1850.80 1.329 324.58 1860.80 1.320 319.48 1870.80 1.320 314.35 1880.80 1.329 309.26 1890.80 1.346 304.26 1900.80 1.371 299.42 1910.80 1.404 294.78 1920.80 1.442 290.36 1930.80 1.485 286.19 1940.80 1.532 282.27 1950.80 1.583 278.58 1960.80 1.635 275.13 1970.80 1.687 271.90 1980.80 1.738 268.85 1990.80 1.786 265.97 2000.80 1.830 263.24 2010.80 1.866 260.63 2020.80 1.892 258.10 2030.80 1.904 255.63 2040.80 1.896 253.16 2050.80 1.861 250.64 2060.80 1.786 247.96 2070.80 1.652 244.96 2080.80 1.429 241.22 2090.80 1.073 235.51 2100.80 0.561 221.07 2110.80 0.270 121.55 2120.80 0.808 77.63 2130.80 1.340 69.48 2140.80 1.789 65.79 2150.80 2.168 63.50 2160.80 2.490 61.85 2170.80 2.767 60.56 2180.80 3.007 59.49 2190.80 3.217 58.56 2200.80 3.402 57.75 2210.80 3.565 57.01 2220.80 3.709 56.34 2230.80 3.837 55.71 2240.80 3.950 55.12 2250.80 4.050 54.57 2260.80 4.139 54.03 2270.80 4.217 53.52 2280.80 4.285 53.03 2290.80 4.344 52.55 2300.80 4.396 52.08 2310.80 4.439 51.62 2320.80 4.476 51.17 2330.80 4.506 50.73 2340.80 4.530 50.29 2350.80 4.548 49.86 2360.80 4.561 49.43 2370.80 4.568 49.00 2380.80 4.571 48.57 2390.80 4.569 48.15 2400.80 4.563 47.72 2410.80 4.553 47.29 2420.80 4.539 46.86 2430.80 4.521 46.42 2440.80 4.499 45.98 2450.80 4.474 45.54 2460.80 4.446 45.09 2470.80 4.414 44.63 2480.80 4.380 44.17 2490.80 4.343 43.70 2500.80 4.303 43.23 2510.80 4.260 42.74 2520.80 4.214 42.24 2530.80 4.167 41.73 2540.80 4.116 41.21 2550.80 4.064 40.68 2560.80 4.009 40.13 2570.80 3.953 39.57
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:26:49 |