The sun emits a continuous spectrum that includes all colors of the rainbow, from red to violet. This is known as a blackbody spectrum.

Here's a breakdown:

* Continuous Spectrum: This means that the spectrum includes all wavelengths of light, without any gaps.

* Blackbody Spectrum: This refers to the specific shape of the continuous spectrum emitted by a perfect absorber and emitter of radiation. The sun isn't a perfect blackbody, but it's a good approximation.

However, the sun's spectrum isn't perfectly smooth. There are some absorption lines present. These lines are caused by elements in the sun's atmosphere that absorb specific wavelengths of light. These absorption lines are what allow us to study the composition of the sun.

So, while we see a continuous spectrum from the sun, it's not completely continuous. There are some subtle dips in the spectrum due to absorption lines.