SuperWASP
Das SuperWASP-Projekt ist eine automatische Suchmaschine für extrasolare Planeten. Das europäische Projekt steht für Super Wide Angle Search for Planets.
Standort
SuperWASP besteht aus zwei autonom operierenden Observatorien. Sie befinden sich im Roque-de-los-Muchachos-Observatorium auf La Palma (28° 45′ 36,8″ N, 17° 52′ 45,5″ W) und im South African Astronomical Observatory, Südafrika (32° 22′ 46″ S, 20° 48′ 38″ O).
Technik
In einer eigens entworfenen autonomen Beobachtungsstation stehen acht Teleobjektive (200mm/f1.8 Canon) auf einer Hufeisenmontierung bereit, in jeder klaren Nacht etwa 50.000.000 Messungen von Sternhelligkeiten durchzuführen.
Jedes Objektiv ist mit einer astronomischen CCD-Kamera mit 2048x2048 Pixeln Fläche verbunden, die ein Bildfeld von 7,8x7,8 Grad liefern.
Messungen
In jeder Nacht sollen die Kameras etwa 800 jeweils 35 Sekunden lang belichtete Bilder machen.
Die Helligkeiten der Sterne sollen zwischen 7. und 13. Größe mit 1 Prozent Genauigkeit (0,01 Größenklassen) bestimmt werden.
Ergebnisse
Aus der zeitlichen Analyse der Messungen erhofft man sich mehrere Entdeckungen von Exoplaneten, die vor ihrer jeweiligen Sonne vorbeiziehen und dadurch deren Licht abschwächen. Mittlerweile ist die Anzahl der durch das SuperWASP-Projekt neu entdeckten Planeten auf 31 angestiegen.
Entdeckte Exoplaneten
| Stern | Sternbild | Scheinbare Helligkeit |
Distanz (ly) |
Spektral- klasse |
Planet | Masse (MJ) |
Radius (RJ) |
Umlaufzeit (d) |
Halbachsen der Ellipse (AU) |
Orbital- exzentrizität |
Bahn- neigung (°) |
Entdeckung (y) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WASP-1 | Andromeda | 11.79 | 1031 | F7V | b | 0.86 | 1.484 | 2.5199464 | 0.0382 | 0 | 88.65 | 2006 |
| WASP-2 | Delphinus | 11.98 | 493 | K1V | b | 0.847 | 1.079 | 2.15222144 | 0.03138 | 0 | 84.73 | 2006 |
| WASP-3 | Lyra | 10.64 | 727 | F7V | b | 2.06 | 1.454 | 1.8468372 | 0.0313 | 0 | 85.06 | 2007 |
| WASP-4 | Phönix | 12.6 | 851 | G7V | b | 1.1215 | 1.363 | 1.33823187 | 0.02312 | 0 | 88.8 | 2007 |
| WASP-5 | Phönix | 12.26 | 967 | G4V | b | 1.58 | 1.09 | 1.6284296 | 0.02683 | 0 | 85.8 | 2007 |
| WASP-6 | Aquarius | 12.4 | 1001 | G8V | b | 0.5 | 1.3 | 3.36 | 0.0269 | 0.054 | 88.47 | 2008 |
| WASP-7 | Microscopium | 9.51 | 460 | F5V | b | 0.96 | 0.915 | 4.954658 | 0.0618 | 0 | 89.6 | 2008 |
| WASP-8 | Sculptor | 9.9 | 160 | G6 | b | 2.23 | 1.17 | 8.16 | 0.0793 | 0.3082 | 88.52 | 2008 |
| WASP-10 | Pegasus | 12.7 | 290 | K5 | b | 3.06 | 1.08 | 3.0927616 | 0.0371 | 0.057 | 86.8 | 2008 |
| WASP-11/HAT-P-10 | Perseus | 11.89 | 408 | K3V | b | 0.460 | 1.045 | 3.7224690 | 0.0439 | 0 | 88.5 | 2008 |
| WASP-12 | Auriga | 11.7 | 871 | G0V | b | 1.404 | 1.736 | 1.0914222 | 0.02293 | 0 | 86 | 2008 |
| WASP-13 | Lynx | 10.7 | 509 | G1V | b | 0.485 | 1.365 | 4.353011 | 0.05379 | 0 | 85.64 | 2008 |
| WASP-14 | Boötes | 9.75 | 520 | F5V | b | 7.725 | 1.259 | 2.2437704 | 0.037 | 0.0903 | 84.79 | 2008 |
| WASP-15 | Hydra | 10.9 | 1005 | F5 | b | 0.54 | 1.16 | 3.75 | 0.0472 | 0 | 85.5 | 2008 |
| WASP-16 | Virgo | 11.3 | 520 | G3V | b | 0.855 | 1.008 | 3.12 | 0.0421 | 0 | 85.22 | 2009 |
| WASP-17 | Scorpius | 11.6 | 1000 | F6 | b | 0.486 | 1.991 | 3.735438 | 0.0515 | 0.028 | 86.83 | 2009 |
| WASP-18 | Phönix | 9.29 | 330 | F9 | b | 10.3 | 1.106 | 0.94145299 | 0.02026 | 0.0092 | 86 | 2009 |
| WASP-19 | Vela | 12.3 | 815 | G8V | b | 1.168 | 1.386 | 0.78884 | 0.01655 | 0.0046 | 79.4 | 2009 |
| WASP-20 | b | 0.3 | 4 | 0.9 | 2011 | |||||||
| WASP-21 | Pegasus | 11.6 | 750 | G3V | b | 0.3 | 1.21 | 4.322506 | 0.052 | 0 | 87.29 | 2010 |
| WASP-22 | Eridanus | 12.0 | 980 | G1 | b | 0.588 | 1.158 | 3.5327313 | 0.04698 | 0 | 88.26 | 2010 |
| WASP-23 | Puppis | 12.7 | K1V | b | 0.884 | 0.962 | 2.9444256 | 0.0376 | < 0.062 | 88.39 | 2010 | |
| WASP-24 | Virgo | 11.3 | 1080 | F8-9 | b | 1.03 | 1.10 | 2.341 | 0.0359 | 0 | 85.71 | 2010 |
| WASP-25 | Hydra | 11.9 | 550 | G4 | b | 0.58 | 1.26 | 3.765 | 0.0487 | 0 | 87.7 | 2010 |
| WASP-26 | Cetus | 11.3 | 815 | G0 | b | 1.028 | 1.281 | 2.7566004 | 0.03985 | 0 | 82.91 | 2010 |
| WASP-28 | Pisces | 12 | 1090 | F8-G0 | b | 1.12 | 0.91 | 3.409 | 0.0455 | 0.046 | 89.1 | 2010 |
| WASP-29 | Phönix | 11.3 | 260 | K4V | b | 0.25 | 0.74 | 3.923 | 0.0456 | 0 | 87.96 | 2010 |
| WASP-31 | Crater | 11.7 | 1305 | F | b | 0.478 | 1.537 | 3.405909 | 0.04657 | 0 | 84.54 | 2010 |
| WASP-32 | Pisces | 11.3 | G | b | 3.6 | 1.18 | 2.71865 | 0.0394 | 0.018 | 85.3 | 2010 | |
| WASP-33 | Andromeda | 8.3 | 378 | A5 | b | < 4.59 | 1.438 | 1.21986967 | 0.02558 | 0 | 87.67 | 2010 |
| WASP-34 | Crater | 10.4 | 391 | G5 | b | 0.59 | 1.22 | 4.3176782 | 0.0524 | 0.038 | 85.2 | 2010 |
| WASP-35 | b | 0.72 | 1.32 | 3.161575 | 0.04317 | 87.96 | 2011 | |||||
| WASP-36 | Hydra | 12.7 | 1468 | G2 | b | 2.279 | 1.269 | 1.53737 | 0.02624 | 83.65 | 2010 | |
| WASP-37 | Virgo | 12.7 | 1102 | G2 | b | 1.696 | 1.136 | 3.577471 | 0.04339 | 0 | 88.78 | 2010 |
| WASP-38 | Hercules | 9.42 | 359 | F8 | b | 2.712 | 1.079 | 6.871815 | 0.07551 | 0.0321 | 88.69 | 2010 |
| WASP-39 | Virgo | 12.11 | 750 | G8 | b | 0.28 | 1.27 | 4.055259 | 0.0486 | 0 | 87.83 | 2011 |
| WASP-40/HAT-P-27 | Virgo | 12.21 | 665 | G8 | b | 0.66 | 1.055 | 3.0395721 | 0.0403 | 0.078 | 84.98 | 2011 |
| WASP-41 | Centaurus | 11.6 | 587 | G8V | b | 0.92 | 1.21 | 3.052394 | 0.04 | 0 | 87.3 | 2010 |
| WASP-42 | b | 0.5 | 1.08 | 4.98169 | 0.0458 | 0.06 | 88.25 | 2011 | ||||
| WASP-43 | Sextans | 12.4 | K7V | b | 1.78 | 0.93 | 0.813475 | 0.0142 | 0 | 82.6 | 2011 | |
| WASP-44 | Cetus | 12.9 | G8V | b | 0.889 | 1.14 | 2.4238039 | 0.03473 | 0 | 86.02 | 2011 | |
| WASP-45 | Sculptor | 12 | K2V | b | 1.007 | 1.16 | 3.1260876 | 0.04054 | 0 | 84.47 | 2011 | |
| WASP-46 | Indus | 12.9 | G6V | b | 2.101 | 1.31 | 1.43037 | 0.02448 | 0 | 82.63 | 2011 | |
| WASP-47 | Aquarius | 11.9 | 652 | G9V | b | 1.14 | 1.15 | 4.15914 | 89.2 | 2011 | ||
| WASP-48 | Cygnus | 11.06 | b | 0.98 | 1.67 | 2.143634 | 0.03444 | 0 | 80.09 | 2011 | ||
| WASP-49 | b | 0.378 | 1.115 | 2.78174 | 84.89 | 2011 | ||||||
| WASP-50 | Eridanus | 11.6 | 750 | G9 | b | 1.468 | 1.153 | 1.9550959 | 0.02945 | 0.009 | 84.74 | 2011 |
| WASP-51/HAT-P-30 | Draco | 10.36 | 629 | F | b | 0.711 | 1.34 | 2.810595 | 0.0419 | 0.035 | 83.6 | 2011 |
| WASP-52 | Pegasus | 12 | 457 | K2V | b | 0.46 | 1.27 | 1.74978 | 85.35 | 2011 | ||
| WASP-53 | b | 2.5 | 1.2 | 3.3 | 2011 | |||||||
| WASP-54 | b | 0.6 | 3.7 | 1.4 | 2011 | |||||||
| WASP-55 | Virgo | 11.8 | 1076 | b | 0.57 | 1.3 | 4.46563 | 0.0533 | 89.2 | 2011 | ||
| WASP-56 | b | 0.6 | 4.6 | 1.2 | 2011 | |||||||
| WASP-57 | b | 0.8 | 2.8 | 1.1 | 2011 | |||||||
| WASP-58 | Lyra | 11.66 | 978 | G2V | b | 0.89 | 1.37 | 5.01718 | 0.0561 | 87.4 | 2011 | |
| WASP-59 | Pegasus | 13 | 408 | K5V | b | 0.7 | 7.9 | 0.9 | 2011 | |||
| WASP-60 | Pegasus | 12.18 | 1305 | G1V | b | 0.0272 | 4.3 | 0.9 | 2011 | |||
| WASP-61 | Lepus | 12.5 | 1566 | F7 | b | 2.06 | 1.24 | 3.8559 | 0.0514 | 89.35 | 2011 | |
| WASP-62 | Dorado | 10.3 | 1566 | F7 | b | 0.57 | 1.39 | 4.41195 | 0.0567 | 88.3 | 2011 | |
| WASP-63 | Columba | 11.2 | 1076 | G8 | b | 0.38 | 1.43 | 4.37809 | 0.574 | 87.8 | 2011 | |
| WASP-64 | b | 1.2 | 1.6 | 0.7 | 2011 | |||||||
| WASP-65 | b | 1.6 | 1.3 | 2.3 | 2011 | |||||||
| WASP-66 | Antlia | 11.6 | 1239 | F4 | b | 2.32 | 1.39 | 4.08605 | 0.0546 | 85.9 | 2011 | |
| WASP-67 | Sagittarius | 12.5 | 734 | K0V | b | 0.42 | 1.4 | 4.61442 | 0.0517 | 85.8 | 2011 | |
| WASP-68 | b | 0.8 | 0.9 | 5.1 | 2011 | |||||||
| WASP-69 | b | 0.3 | 1 | 3.9 | 2011 | |||||||
| WASP-70 | b | 0.6 | 0.8 | 3.7 | 2011 | |||||||
| WASP-71 | Cetus | 10.57 | 652 | F8 | b | 2.258 | 1.5 | 2.90367 | 84.2 | 2012 | ||
| WASP-77A | Cetus | 11.29 | G8V | b | 1.76 | 1.21 | 1.36003 | 89.4 | 2012 | |||
| WASP-78 | Eridanus | 12.0 | 1794 | F8 | b | 1.16 | 1.75 | 2.17518 | 0.0415 | 89 | 2012 | |
| WASP-79 | Eridanus | 10.1 | 783 | F3 | b | 0.89 | 1.7 | 2.17518 | 0.0362 | 83.2 | 2012 | |
| WASP-80 | Aquila | 11.88 | 196 | K7V | b | 0.554 | 0.952 | 3.06785 | 0.0346 | 0.07 | 89.92 | 2013 |
Ähnliche Projekte
Zurzeit gibt es etwa 20 ähnliche Projekte, z. B. OGLE (Optical Gravitational Lensing Experiment), STARE, PSST, HAT, TASS Sky Survey (TASS)
Literatur
SuperWASP: Magnitudes by the Millions, Sky&Telescope, August 2004, S. 30