Dawn goddess

EOS

In Greek mythology, she opens the gates of heaven for the sun each morning.

The clue "Dawn goddess" refers to Eos, the Greek goddess of the dawn. In mythology, she’s known for bringing the morning light, often depicted with rosy fingers. The answer is straightforward, as "Eos" is her name without any wordplay or hidden meanings. If you're familiar with Greek myths, this one should be easy to spot.