Berean Study Bible (BSB) - Revelation 9:1 >

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.

Textus Receptus (TR) - Revelation 9:1 >

Καὶ ὁ πέμπτος ἄγγελος ἐσάλπισε, καὶ εἶδον ἀστέρα ἐκ τοῦ οὐρανοῦ πεπτωκότα εἰς τὴν γῆν, καὶ ἐδόθη αὐτῷ ἡ κλεὶς τοῦ φρέατος τῆς ἀβύσσου.