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irga5000 [103]
2 years ago
10

If a sunspot appears only 70 s bright as the surrounding photosphere, and the photosphere has a temperature of approximately 578

0 k. What is the temperature of the sunspot?
Physics
1 answer:
grin007 [14]2 years ago
8 0

The temperature of the sunspot is 5290K.

Flux is directly proportional to brightness (energy per second falling on a unit area of your detector) (energy per second being radiated away from a unit area of the source).

In turn, flux is proportional to the temperature to the fourth power (Stefan-Boltzmann Law).

Consequently, tsunspot/bphotosphere = T4sunspot/T4photosphere

(bsunspot/bphotosphere) = T4sunspot + T4photosphere

(bsunspot/bphotosphere) Tsunspot =Tphotosphere

By putting in the values, we get,

1/4 = 5780 K (0.7)

1/4 = 5780 x 0.915 = 5290 K

Therefore, temperature of the sunspot is 5290K.

Learn more about temperature of the sunspot here:

brainly.com/question/13687926

#SPJ4

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