If I'm not mistaken however, the IAU starts with lowercase b for planets, since the star itself they treat as a lowercase a if describing a system. Using their system, in short there can never be a planet a. So using my example of Proxima, the IAU would give the potential planet a lowercase b, making the planet Alpha Centauri Cb rather than Ca.
I attempted to mimic the IAU in my star system generation rules, but what I gave above is simpler, since there is no wondering WHY there is no planet a in a system.
Yeah, they do that. It annoys me
. I think planets should start with 'a' - the star isn't a planet, after all. Calling the first planet "b" implies that there's something called "a" when there isn't. And it's daft give that the first moon around a planet in the solar system is "I", not "II".
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