Question

PART B -Essay type Questions (5 Marks each) Answer one of the following questions in the exam booklets provided using essay style, i.e. paragraphs comprised of grammatically correct sentences If you answer more than one question, you may earn bonus marks (up to a maximum of 10 bonus marks for good answers to all three questions) 1. Identify and explain the various methods used to determine distances to stars and galaxies. 2. What properties are stars in a cluster assumed to have in common? Explain how these assumptions aid astronomers in determining the distance to a cluster. 3. Describe two properties of the presently observed Cosmic Background Radiation. How are these properties explained in the Hot Big Bang model ?

Astronomy question 2

Answer 1

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