Borella
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See Borella (ship) for the similarly named vessel.
Borella is the name of the planet from which the Borellian Nomen Bora, Maga, and Taba originate. It is mentioned briefly in Baltar's Escape when Baltar mentions a something he obtained for the Nomen. Baltar admits that the Borellian desert layers he saved for the nomen weren’t actually from Borella but were the closest thing available from the livestock ship.
Not to be confused with the planet Borallus.