PLAnetary Transits and Oscillations of stars
||What are the conditions for planet formation and the emergence of life?
||Detection and characterisation of terrestrial exoplanets around bright solar-type stars, with emphasis on planets orbiting in the habitable zone.
- Photometric monitoring of a large number of bright stars for the detection of planetary transits and the determination of the planetary radii (around 3% accuracy)
- Ground-based radial velocity follow-up observations for the determination of the planetary masses (around 10% accuracy)
- Asteroseismology for the determination of stellar masses, radii, and ages (up to 10% of the main sequence lifetime)
- Identification of bright targets for spectroscopic follow-up observations of planetary atmospheres with other ground and space facilities
||A number of small, optically fast, wide-field telescopes
||Large amplitude libration orbit around Sun-Earth Lagrangian point, L2
||4 years of nominal science operations; satellite built and verified for an in-orbit lifetime of 6.5 years