Suppose you discovered a planet orbiting around a star, and want to learn about a planet's atmosphere composition using light spectrum.

Would you use emission spectrum or absorption spectrum? Why? And how can we use the spectrum to study the planet's atmospheric composition?

Question

Suppose you discovered a planet orbiting around a star, and want to learn about a planet's atmosphere composition using light spectrum. 

Would you use emission spectrum or absorption spectrum? Why? And how can we use the spectrum to study the planet's atmospheric composition?

anonymous · Answer

what do u think ? absorption or emission?

anonymous · Answer

ı wish ı had an idea. but ı think emission