And while we're at it, the moon only appears big when it's close to the horizon because then it's adjacent to other objects to give us a frame of reference. The width of the moon always covers 31 arc minutes or basically half of one degree in the sky, regardless of how high or low it is. (Yes, with extremely minor variation over time due to the eccentricity of its orbit, but these are so small that they're not even remotely visible to the naked eye.)