2.7k views
2 votes
what do scientists use to determine the temperature of the star? A. therometer B.distance from earth C. composition D .color?

User Jorgonor
by
9.2k points

2 Answers

7 votes
Color cause stars are pretty far. Blue actually means that it's even hotter than red.
User Judith
by
8.6k points
7 votes

Answer: D. color

Step-by-step explanation:

From Wien's displacement law: The peak wavelength emitted by the object is inversely proportional to its temperature. Thus, the spectrum of a star is observed and its peak wavelength is measured. It is the color of the star. Temperature can be calculated:


T = (2.89* 10^(-3)m.K)/(\lambda_(peak))

A red color (longer wavelength) star would have low temperature than a blue star (shorter wavelength).

User Varun Chatterji
by
8.6k points

No related questions found