context: darubini maonzi (optical telescope) kubwa hutumiwa na wanaastronomia kwa kutazama magimba ya angani kama jua, mwezi, nyota, sayari au kometi. Darubini hizo huwa ama  
  darubinilenzi (refracting telescope)
  darubiniakisi (reflecting telescope).
question: Ni kifaa kipi hutumika kuangalia nyota angani?
answers.text: darubini maonzi