What is the meaning of Revelation 9:1?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Then the fifth angel sounded his trumpet, and I saw a star that had fallen from heaven to earth, and it was given the key to the pit of the Abyss.

Berean Standard Bible (BSB)

The fifth angel sounded, and I saw a star from the sky which had fallen to the earth. The key to the pit of the abyss was given to him.

World English Bible (WEB)

And{G2532} the fifth{G3991} angel{G32} sounded{G4537}{(G5656)}, and{G2532} I saw{G1492}{(G5627)} a star{G792} fall{G4098}{(G5761)} from{G1537} heaven{G3772} unto{G1519} the earth{G1093}: and{G2532} to him{G846} was given{G1325}{(G5681)} the key{G2807} of the bottomless{G12} pit{G5421}.

Strong's King James

(1) The fifth angel blew and I saw a star from the sky falling to the land and the key of the well-shaft's abyss was given to him.

The F.O.G*

[1] The fifth angel sounded his shofar, and I watched as a star, an angelic being plummet from heaven to earth. This messenger was given a key to unlock the shaft leading to the Abyss, the deepest prison of spiritual darkness.

The F.O.G Paraphrase

And the fifth messenger did sound, and I saw a star out of the heaven having fallen to the earth, and there was given to it the key of the pit of the abyss,

Young's Literal Translation