While we perceive the Sun as yellow, it actually emits light across the entire spectrum, with the peak of its emission falling in the green part of the spectrum. However, our eyes are more sensitive to yellow light, so we perceive the Sun as yellow.

Here's a breakdown:

* Spectral Type: G2V

* G: Indicates the temperature of the star, in this case, a yellow star.

* 2: A specific sub-class within the G spectral type.

* V: Indicates it's a main sequence star, where it is fusing hydrogen into helium in its core.

So, while it might seem counterintuitive, the Sun is classified as a yellow dwarf, despite its peak emission being in the green part of the spectrum.