Question

Are asteroids reflected light?

Answer 1

Polished metal surfaces reflect light much like the silver layer on the back side of glass mirrors. A beam of light incident on the metal surface is reflected. Reflection involves two rays - an incoming or incident ray and an outgoing or reflected ray.

so its a reflected ray

Answer 2

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The light astronomers see shining from asteroids is reflected sunlight. Some of the sunlight is reflected and some is absorbed. When an asteroid absorbs light from the sun, it emits this absorbed light back into space in the infrared portion of the spectrum, in other words, as heat.