Does a Light Domain cleric's 17th-level feature, Corona of Light (PHB, p. 61), produce sunlight?
It explicitly says, "you can use your action to activate an aura of sunlight". However, it also says, "You emit bright light in a 60-foot radius and dim light 30 feet beyond that." That seems to imply it is just normal light (like the spell daylight) and not sunlight.
Best Answer
Yes, it is considered sunlight
Note that fifth edition is written with standard English in mind and to that end the wording "an aura of sunlight" is an explicit statement that Corona of Light creates sunlight. There is no flavor text in dnd-5e. End of question, there's your answer.
Think that's not enough? There is even a now unofficial ruling (a tweet) from lead game designer Jeremy Crawford:
Or for more support, let's compare the Cleric feature to the spells sunbeam and sunburst:
The description of the Corona of Light feature says:
The sunbeam spell description says:
The sunburst spell description says:
We see from sunbeam that sunlight can be described as shedding bright/dim light. And we see from sunburst that something being sunlight does not have to be explicitly stated in a separate sentence as it is with sunbeam1; it can simply mention sunlight inline as part of its description. Thus, Corona of Light also counts as sunlight in the same way that these two spells do.
For further support, the question "Does the Holy Nimbus emanate actual sunlight?" currently has a well upvoted answer saying the Holy Nimbus feature does count as sunlight despite only including the following relevant text:
1 Evidence that sunburst creates sunlight besides standard English:
There exists this well upvoted answer to the question "Does the Daylight spell hurt Vampires?" which assumes that sunburst does create sunlight. Though something being commonly assumed doesn't give it much traction, it is still worth pointing out.