名詞 facula:

1. a bright spot on a planet
2. a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots

fac.u.la

n.（名詞）
【復(fù)數(shù)】 fac.u.lae[-lô.]
Any of various large, bright spots or veined patches on the sun`s photosphere, usually near sunspots.
光斑：太陽光球上大的亮點或有脈紋的亮區(qū)，通?？拷谧犹?/br>
來源：
Latin [small torch]
拉丁語 [小火把]
diminutive of fax fac- [torch]
fax的小后綴 fac- [火炬]