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The top documents tagged [cool surface temperatures]
Last Year’s Exam, Section B Answer any 3 of 5 short questions 5 marks each exam is out of 50 i.e. 120/50=2.4 minutes per mark hence each question should
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Thursday September 20, 2012 (The Hertzsprung - Russell Diagram; Nebulae )
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The Life Cycle of a Star The Horsehead Nebula – one of the most famous pictures in astronomy
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The Protostars phase of stellar evolution lasts about 100,000 years
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