If they are both A class stars, why do their colors appear different? Are they A0 vs. A9, or is there a metalicity factor? Is metal ever a color factor in G class or above? [Oh, none of those are my question, btw. ]

Seems like I'm kinda stuck on color around here.

What is the primary color of Spitzer and why? [I am going on memory here, but I think I'll not get egg on my face.]

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Lighten up! This is a stellar board! Author: duh.

"The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly.