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ID: 1875216 • Letter: P

Question

please show step by step for the answer and include the equation you are using

SHORT ESSAY 2: 12 points You observe both a Red Giant star and a White Dwarf star at the same distance from you. Explain which of the two stars is easier to see and why HINT-Use this information to help you answer this question. Betclgcuse is a Red Giant star with a surface temperature of 3500 K and a radius 1,180 times the Sun's radius. Sirius B is a White Dwarf star with a surface temperature of about 10,000 K and a radius of 5900 kilometers (slightly smaller than planet Earth). .

Explanation / Answer

A white dwarf is hotter than red giant { 10000K>3500K } , but a red giant is very much bigger than white dwarf , so it has a comparatively larger surface area , which enables it to radiate more light.

So, a red giant will be easier to see than a white dwarf .