Revelation 8:11 The name of the star is Wormwood . A third of the waters became Wormwood , and many men died of the water, because it was made bitter.

Revelation 8:12 The fourth angel blew his trumpet, and a third of the sun was struck, and a third of the moon, and a third of the stars, so that a third of their light was darkened; a third of the day was kept from shining, and likewise a third of the night.

I was never really able to make any PRACTICAL sense of verse 12 (especially timewise), but now I wonder if the ONE THIRD has to do with the damage caused by Wormwood of verse 11.

https://www.history.com/news/536-volcanic-eruption-fog-eclipse-worst-year#:~:text=But%20in%20536%20A.D.%2C%20much,say%2C%20the%20literal%20Dark%20Age.

https://en.wikipedia.org/wiki/Council_of_Jerusalem_(536)

https://en.wikipedia.org/wiki/536
The volcanic winter of 536…..

https://en.wikipedia.org/wiki/Volcanic_winter_of_536

https://www.thoughtco.com/dust-veil-environmental-disaster-in-europe-171628

https://medievalreporter.com/worst-year-ever-536/

It seems that others have also noticed that the verse could actually refer to something extraordinary and astrological/astronomical.

https://1260d.com/2021/12/08/locust-of-rev-9-and-the-year-of-hell-536-ad/