debris disk Fomalhaut “Fomalhaut had first visible exoplanet” Fomalhaut Fomalhaut had first visible exoplanet „Fomalhaut had first visible exoplanet” “Fomalhaut had first visible exoplanet” Fomalhaut Fomalhaut had first visible exoplanet системе Фомальгаута Fomalhaut system Fomalhaut bright star Fomalhaut Fomalhaut sistema Fomalhaut