i Register
In some senses, daystar is marked as literary, poetic. Watch for register when choosing this word.
noun
The planet Venus as the morning star.
Near-synonyms: Vesper, Hesperus, evening star, Venus
Here dawn'd the daystar of Hesperia's fame, / Here herald glory first emblazed her name;
The Sun.
I only go outdoors at night, away from the daystar's burning glare.