Item 1 For the stars listed below mV is the apparent visual (yellow) magnitude,

Question

Item 1

For the stars listed below mV is the apparent visual (yellow) magnitude, mB is the apparent blue magnitude, and MV is the absolute visual (yellow) magnitude.

Part A - magnitude matching - Essay 2

For the stars listed below mV is the apparent visual (yellow) magnitude, mB is the apparent blue magnitude, and MV is the absolute visual (yellow) magnitude.

Which star will live the longest?

Which star is the hottest?

Which star is a red giant?

For all three questions, justify your answer with an explanation of why you chose the star you chose. Be sure to detail what the magnitudes are telling you? How is one number different than another and why did that influence your choices? For example, how is a 6 different than a 10 for mV, or why is a 6 for mV different than a six for mB.

Star mV mB MV A 13 18 10 B 6 10 -2 C 5 7 3 D 7 8 7 E 15 18 5 F 2 -2 -3 G 14 13 12 H 6 6 7

Explanation / Answer

A & E will live long because they have red colour which is high wavelength so it will travel more

E is hotest

F is red giant

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