TODO: Asteroids

[RobertWinslow]

Not all of them. But Hygiea and Psyche are Important.

Hygiea has actual codepoints:
https://www.fileformat.info/info/unicode/char/1f54f/index.htm
https://www.fileformat.info/info/unicode/char/2bda/index.htm

Not sure how to sensibly implement Psyche if not in a PUA

And this is quite a bit of scope creep, it it might be fun to create symbols for every minor planet visited by humanity:
https://en.wikipedia.org/wiki/List_of_minor_planets_and_comets_visited_by_spacecraft

[RobertWinslow]

Update on the asteroids. As of November 2023, Unicode codepoints have been reserved for a large number of asteroid symbols. (Though the symbols have yet to be made an official part of the Unicode standard.)

Unicode Pipeline
Unicode request for historical asteroid symbols